University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Seed germination response of Haloxylon persicum (Chenopodiaceae) to different hydrothermal conditions and sand burial depths2112211061ENA.SoltaniDept. of Forest Sciences, ShahreKord University, ShahreKord, Iran.
E-mail: ali.soltani@nres.sku.ac.irJournal Article19700101Daily counts of germinated seeds of white saxaul (Haloxylon persicum) incubated at 35 different hydrothermal environments (10-25?C and 0 to -3 MPa) were carried out under controlled laboratory conditions. The seeds were then buried in sand at 4 different depths in well drained pots constantly moisturized for three weeks. In all these hydrothermal conditions, the courses of germination were completed in less than 12 days. Both temperature and water deficit conditions significantly affected the seed germination. Water potential values of -1.5 MPa reduced the germination percentage to less than one fourth of the potential viability in all ambient temperature regimes and seed germination almost completely ceased at water deficit of -3 MPa. As water potential decreased from 0 to -1.5, base temperature values slightly increased from 5.4 to 6.5 ?C. Six-cm depth of burial was enough to reduce germination by 50% and on an average 85% of germinated seeds at 8-cm depth failed to reach the soil surface. No seedling appeared on top of the sand bed in pots labeled \"12-cm burial depth".
<strong>REFERENCES </strong>
Akhani, H., Ghorbanli, M. (1993) A contribution to the halophytic vegetation and flora of Iran. In: H. Lieth and A. Al-Masoom (Eds.), Towards the rational use of high salinity tolerant plants, Kluwer Academic Publishers, Amsterdam, pp. 35-44.
Akhani, H., Trimborn, P., Ziegler, H. (1997) Photosynthetic pathways in Chenopodiaceae from Africa, Asia and Europe with their ecological, phytogeographical and taxonomical importance. Plant Syst. Evol., 206, 187- 221.
Alvarado, V., Bradford, K.J. (2002) A hydrothermal time model explains the cardinal temperatures for seed germination. Plant Cell. Environ., 25, 1061-1069.
Amani, M., Parvizi, A. (1996) [Silviculture of saxaul]. Forests and Range Lands Research Center Publication, Tehran, 118 p.
Baskin, C.C., Baskin, J.M. (2001) Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination. Academic Press, San Diego, 665 p.
Bradford, K.J. (1990) A water relations analysis of seed germination rates. Plant Physiol., 94, 840–849.
Bradford, K.J. (1995) Water relations in seed germination. In: J. Kigel and G. Galili (Eds), Seed Development and Germination, Marcel Dekker, New York - USA, pp. 351–396.
Dahal, P., Bradford, K.J. (1990) Effects of priming and endosperm integrity on seed germination rates of tomato genotypes. II. Germination at reduced water potential. J. Exp. Bot., 41, 1441- 1453.
Finch-Savage, W.E. (1995) Influence of seed quality on crop establishment, growth, and yield. In: A.S. Basra (Ed), Seed quality: basic mechanisms and agricultural implications, Food Products Press, New York, pp. 361–384.
Finney, D.J. (1971) Probit analysis. Cambridge University Press London, 332 p.
Fyfield, T.P., Gregory, P.J. (1989) Effects of temperature and water potential on germination, radicle elongation and emergence of mungbean. J. Exp. Bot., 40, 667–674.
Gummerson, R.J. (1986) The effect of constant temperatures and osmotic potential on the germination of sugar beet. J. Exp. Bot., 37, 729-741.
Gutterman, Y. (1993) Seed germination in desert plants. Springer-Verlag, Berlin ; New York, 253 p.
Holt, J.S., Orcutt, D.R. (1996) Temperature thresholds for bud sprouting in perennial weeds and seed germination in cotton. Weed Sci., 44, 523-533.
Jafari, M., Niknahad, H., Erfanzadeh, R. (2003) Effect of Haloxylon plantation on some soil characteristics and vegetation cover. Desert, 8, 152-162.
Kardavani, P. (1994) Arid areas. Tehran University Publications, Tehran, 318 p.
Kebreab, E., Murdoch, A. (2000) The effect of water stress on the temperature range for germination of Orobanche aegyptiaca seeds. Seed Sci. Res., 10, 127–133.
Kebreab, E., Murdoch, A.J. (1999) Modeling the effects of water stress and temperature on germination rate of Orobanche aegyptiaca seeds. J. Exp. Bot., 50, 655-664.
Koocheki, A. (1996) The use of halophytes for forage production and combating desertification in Iran. In: R. ChoukrAllah, C.V. Malcolm and A. Hamdy (Eds), Halophytes and biosaline agriculture, Marcel Dekker, Inc., New York, pp. 263-274.
Matin, M., Chegini, M.A., Borbar, Z., Modares, M. (1994) Seed pelleting as a method to improve success in aerial seeding of Haloxylon species. Seed and Seedling breeding Institute, Isfahan, 113 p.
Maun, M.A. (1998) Adaptations of plants to burial in coastal sand dunes. Can. J. Bot., 76, 713-738.
Maun, M.A. (2004) Seeds and seed banks. In: M.L. Martínez and N.P. Psuty (Eds.), Coastal dunes: ecology and conservation, Springer-Verlag, Berlin.
Michel, B.E. (1983) Evaluation of water potential of solutions of polyethylene glycol 8000 both in the absence and presence of other solutes. Plant Physiol., 72, 66-70.
Minitab Inc. (2000) MINITAB Reference Manual, Release 13 for Window™. Minitab Inc., State College.
Nemati, N. (1986) Pasture improvement and management in arid zones of Iran. J. Arid Environ., 11, 27-35.
Pyankov, V.I., Black, C.C., Artyusheva, E.G., Voznesenskaya, E.V., Ku, M.S.B., Edwards, G.E. (1999) Features of photosynthesis in Haloxylon species of Chenopodiaceae that are dominant plants in Central Asian deserts. Plant Cell Physiol., 40, 125-134.
Rowse, H.R., Finch-Savage, W.E. (2003) Hydrothermal threshold models can describe the germination response of carrot (Daucus carota) and onion (Allium cepa) seed populations across both sub- and supra-optimal temperatures. New Phytol., 158, 101-108.
Song, J., Feng, G., Tian, C., Zhang, F. (2005) Strategies for adaptation of Suaeda physophora, Haloxylon ammodendron and Haloxylon persicum to a saline environment during seed-germination stage. Ann. Bot., 96, 399-405.
Steinmaus, S.J., Prather, T.S., Holt, J.S. (2000) Estimation of base temperatures for nine weed species. J. Exp. Bot., 51, 275-286.
Tobe, K., Li, X., Omasa, K. (2000) Effects of NaCl on seed germination and growth of two Chinese desert shrubs, Haloxylon ammodendron and H. persicum (Chenopodiaceae). Aust. J. Bot., 48, 455-460.
Unknown (2006) [National annual report of synoptic and climatologic meteorology stations]. I.R. Iran Meteorology Organization, Tehran, 236 p.
Wang, R., Bai, Y., Tanino, K. (2005) Germination of winterfat (Eurotia lanata (Pursh) Moq.) seeds at reduced water potentials: testing assumptions of hydrothermal time model. J. Exp. Bot., 53, 49–63.
Wang, Z.L., Wang, G., Liu, X.M. (1997) Experiment on germination ecology of some desert plants. J. Desert Res., 17, 44-49.
Zheng, Y., Xie, Z., Yu, Y., Jiang, L., Shimizu, H., Rimmington, G.M. (2005) Effects of burial in sand and water supply regime on seedling emergence of six species. Ann. Bot., 95, 1237-1245.
Zohary, M. (1974) Geobotanical foundations of the Middle East. J. Ecol., 62, 349-350. University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Economically optimal cutting cycle in a beech forest, Iranian Caspian Forests1811881062ENS.Mohammadi LimaeiDept. of Forestry, Faculty of Natural Resources, University of Guilan, Sowmehsara 1144, Iran0000-0001-6379-6120R.NaghdiDepartment of Forestry, Faculty of Natural Resources, University of Guilan, Sowmehsara, P.O. Box: 1144 ,Iran.S.NamdariDept. of Forestry, Faculty of Natural Resources, University of Guilan, Sowmehsara 1144, Iran.A. E.BonyadDept. of Forestry, Faculty of Natural Resources, University of Guilan, Sowmehsara 1144, Iran.Journal Article19700101The aim of this study was to determine the optimal cutting cycle in an uneven-aged beech forest in the North of Iran. First of all, a logistic growth model was determined for an uneven aged forest. Then, the stumpage price was predicted via an autoregressive model. The average stumpage price of beech was derived from actual timber, round wood, fire and pulpwood prices at road side minus the variable harvesting costs. Price and growth models were used in order to determine the optimal cutting cycle under different rates of interest and setup costs. The Faustmann?s model was used for optimal cutting cycle. The results indicated that the optimal cutting cycle will decrease if the rate of interest increased. The results also indicated that if the setup costs increase, the optimal cutting cycle will also increase.
<strong>REFERENCES</strong>
Bonyad, A.E. (2005) Measurement and statically analysis of forest growth at three altitude classes in Shafarod forests. Report of Research Plan, University of Guilan, Iran, 73 p.
Buongiorno, J. (2001) Generalization of Faustmann's formula for stochastic forest growth and prices with Markov decision process model. For Sci. 47, 466-474.
Buongiorno, J., Lu, H. (2003) Economic stocking and cutting-cycle in a regulated selection forest Department of Forestry, University of Wisconsin, Madison, 1630 Linden Drive, Madison, WI 53706, U.S.A.
Buongiorno, J., Peyron, J.L., Houllier, F. & Bruciamacchie, M. (1995) Growth and management of mixed-species, uneven-aged forests in the French Jura: implications for economic returns and tree diversity. For Sci. 41, 397-429
Central Bank of the Islamic Republic Iran. (2011) Consumer Price Index, (http://www.cbi.ir/section/1555.aspx (10-Feb-2011))
Chang, J.S. (1981), Determination of the optimal growing stock and cutting cycle for an uneven-aged stand. For Sci. 27, 739-744.
Chang, S.J., and Gadow, K, V. (2010) Application of the generalized Faustmann model to uneven-aged forest management, J. Forest Econ., 16, 313-325.
Clark, C.W. (1976) Mathematical bioeconomics, the optimal management of renewable resources. New York. 386pp. Faustmann, M. (1849) On the Determination of the Value Which Forest Land and Immature Stands Possess for Forestry, English Edition edited by M. Gane, Oxford. UK.
Gong, P. 1990) Timber price and price predictions (expectations). Swedish University of Agricultural Sciences, Department of Forest Economics, Umeå, Sweden, Report 126, 44 p.
Haight, R.G. (1990) Feedback thinning policies for uneven-aged stand management with stochastic prices. For Sci. 36, 1015-1031.
Hann, D.W., & Bare, B.B. (1979) Unevenage forest management: state of the art (or Science?). USDA, Forest Service, General Technical Report 50, 18p.
Lohmander, P. (1987) Pulse extraction under risk and a numerical forestry application. International institute for applied systems Analysis, IIASA, WP84-49, 39 p.
Lohmander, P., Mohammadi Limaei. S. (2008) Optimal Continuous Cover Forest Management in an UnevenAged Forest in the North of Iran, J. Appl. Sci. 8, 1995-2007.
Mohammadi Limaei, S. (2011) Economics optimization of forest management, LAP LAMBERT Academic Publication, Germany, 140 p.
Mohammadi Limaei, S. (2006) Economically optimal values and decisions in Iranian forest management. Doctoral diss. Dept. of Forest Economics, SLU. Acta Universitatis agriculturae Sueciae vol. 2006:91.
Orois, S.S., Chang, S.J., and Gadow, K.V. (2004) Optimal residual growing stock and cutting cycle in mixed unevenaged maritime pine stands in Northwestern Spain, Forest Policy Econ. 6, 145-152.
Peng, C. (2000) Growth and yield models for uneven-aged stands: past, present and future. Forest Ecol. and Manag. 132, 259-279.
Rollin, F., Buongiorno, J., Zhou, M. and Peyron, J.L. (2005) Management of mixed-species, uneven-aged forests in the French Jura: from stochastic growth and price models to decision tables. For Sci. 55, 64-74.
Virgilietti, P. & Buongiorno, J. (1997) Modeling forest growth with management data: A matrix approach for the Italian Alps. Silva Fennica. 31, 27-42.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Ecological species groups in the rural heritage museum of Guilan Province, Iran1151231063ENR.AbediDept. of Forestry, Faculty of Natural Resources, University of Guilan, P.O.Box 1144, Someh Sara, Iran.H.PourbabaeiDept. of Range and Forest, Faculty of Agriculture, University of Ilam, Ilam, Iran
*Corresponding author’s E-mail: abedi.roya@yahoo.comJournal Article19700101The objective of this research was to identify and describe the different Ecological Species Groups (vegetation types) present in the Rural Heritage Museum of Guilan. The study area was approximately 260 ha, which is located in the Saravan Forest Park in Guilan province, north of Iran. Sampling procedure was performed with a systematic random technique. A total of 89 plots were sampled. Classification of vegetation carried out using the Two Way Indicator Species Analysis (TWINSPAN) method showed that there were five ecological species groups in three layers; three groups in the shrub layer, nine groups in the herb layer and six ecological species groups in the regeneration layer. The results suggest improved protection and management of this area and that it can be proposed as a protected area on the basis of the numerous important species. The information obtained from the current study about this forest is useful for the design and management of this site because of its aesthetic values.
<strong>REFERENCES </strong>
Anonymous (2008) http://www.weather.ir
Adam, J.H., Mahmud, A.M., Muslim, N.E. (2007) Cluster analysis on floristic and forest structure of hilly lowland forest in Lak Kawi, Sabah of Malasia. Intl. J. Bot. 3, 351-358.
Barrett, G. (2006) Vegetation communities on the shores of a Salt Lake in semi-arid Western Australia. J. Arid. Environ. 67, 77-89.
Benhouhou, S.S., Dargie, T.C.D., Gilbert, O.L. (2003) Vegetation associations in the Ougarta Mountains and dayas of the Guir hamada, Algerian Sahara. J. Arid. Environ. 54, 739-753.
Bowers, K., Boutin, C. (2008) Evaluating the relationship between floristic quality and measures of plant biodiversity along stream bank habitats. Ecol. Indicators. 8, 466-475.
Cowlishaw, G., Davies, J.G. (1997) Flora of the Pro-Namib Desert Swakop River Catchment, Namibia: community classification and implications for desert vegetation sampling. J. Arid. Environ. 36, 271-290.
Davis, M.A., Pergl, J., Truscott, A.M., Kollmann, J., Bakker, J.P., Domenech, R., Prach, K., Prieur-Richard, A.H., Veeneklaas, R.M., Pyšek, P., del Moral, R., Hobbs, R.J., Collins, S.L., Pickett S.T.A., Reich, P.B. (2005) Vegetation change: a reunifying concept in plant ecology. Perspectives in Plant Ecolo. Evolution and Systematic, 7, 69-76.
Dengler, J., Chytry, M., Ewald, J. (2008) Phytosociology. Encyclopedia. Ecol. pp: 2767-2779.
Dias, E., Elias, R.B., Nunes, V. (2004) Vegetation mapping and nature conservation: a case study in Terceira Island (Azores). Biodiversity and Conservation, 13, 1519-1539.
Gajoti, T.E., Haciyev, V., Javanshir, A., Nosrati, H., Haghighi, A.R., Eimanifar, A. Stewart, N. (2010) Vegetation Analysis of Sutan-Chay Basin in Arasbaran. Amer. J. Agric. Biol. Sci. 5, 357-362.
Hayes, T., Ostrom, E. (2005) Conserving the World’s Forests: Are Protected Areas the Only Way? In: Indiana Law Review’s Symposium on The Law and Economics of Development and Environment at the Indiana University School of Law-Indianapolis, 22 January, 38, 595-617.
Host, G.E., Pregitzer, K.S. (1991) Ecological species groups for upland forest ecosystems of northwestern Lower Michigan. For. Ecol. Manage. 43, 87-102.
Jafari, M., Zare Chahouki, M.A., Tavili, A., Azarnivand, H., Zahedi Amiri, G. (2004) Effective environmental factors in the distribution of vegetation types in Poshtkouh rangelands of Yazd Province (Iran). J. Arid. Environ. 56, 627-641.
Jalili, A., Jamzad, Z. (1999) Red data book of Iran. Research institute of forest and rangelands. Iran, 748 p.
Khaznadar, M., Vogiatzakis, I.N., Griffiths, G.H. (2009) Land degradation and vegetation distribution in Chott El Beida wetland, Algeria. J. Arid. Environ. 73, 369-377.
Kent, M., Coker, P. (1992) Vegetation Description and Analysis: a Practical Approach. Belhaven Press, London. 363 p.
McCune, B., Mefford, M.J. (1999) PC-ORD, Multivariate analysis of ecological data, version 4.17, MJM software, Glenden beach. Oregon, USA.
Morgenthal, T.L., Kellner, K., Van Rensburg, L., Newby, T.S., Van Der Merwe, J.P.A. (2006) Vegetation and habitat types of the Umkhanyakude Node. South African J. Bot. 72, 1-10.
Murphy, K.J., Dickinson, G., Thomaz, S.M., Bini, L.M., Dick, K., Greaves, K., Kennedy, M.P., Livingstone, S., McFerran, H., Milne, J.M., Oldroyd, J., Wingfield, R.A., (2003) Aquatic plant communities and predictors of diversity in a sub-tropical river floodplain: the upper Rio Parana, Brazil, Aquat. Bot. 77, 257–276.
Orloci, L. (1968) Information analysis in phytosociology: Partition, classification and prediction. J. Theoretical. Biol. 20, 271-284.
Pearman, P.B., Weber, D. (2007) Common species determine richness patterns in biodiversity indicator taxa. Biol. Conserv. 138, 109-119.
Rolecek, J. (2005) Vegetation types of drymesic oak forests in Slovakia. Preslia, Praha. 77, 241-261.
Shaltout, K.H., Sheded, M.G., El-Kady, H.F., Al-Sodany, Y.M. (2003) Phytosociology and size structure of Nitraria retusa along the Egyptian Red Sea coast. J. Arid. Environ. 53, 331-345.
Timilsina, N., Ross, M.S., Heinen J.T. (2007) A community analysis of sal (Shorea robusta) forests in the western Terai of Nepal. For. Ecol. Manage. 241, 223-234.
Vogiatzakis, I.N., Griffiths, G.H., Mannion, A.M. (2003) Environmental factors and vegetation composition. Glob. Eco. Biogeo. 12, 131-146.
Woldewahid, G., Werfb, W., Sykorac, K., Abated, T., Mostofae, B., Huis, A. (2007) Description of plant communities on the Red Sea coastal plain of Sudan. J. Arid. Environ. 68, 113- 131.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401The influence of vermicompost on the growth and productivity of cymbidiums1251321064ENA.HatamzadehDept. of Horticulture, Faculty of Agriculture, University of Guilan, P.O.Box 41635-1314, Rasht, Iran.S. S.Shafyii Masouleh*Dept. of Horticulture, Faculty of Agriculture, University of Guilan, P.O.Box 41635-1314, Rasht, Iran
* Corresponding author’s E-mail: shafyii@guilan.ac.irJournal Article19700101The effects of cattle manure vermicompost on the growth and productivity of cymbidium (Cymbidium sp.) plants were evaluated under shade conditions. Cymbidium was grown in a container medium including 50% pumice, 30% charcoal, 10% vermiculite and 10% peat moss, which was basic plant growth medium substituted with 10%, 20%, 30% and 40% (by volume) vermicompost. The control consisted of container medium alone without vermicompost. Plants were supplied regularly with a complete mineral nutrient solution. The greatest vegetative growth resulted from substitution of container medium with 30% and 40% vermicompost, and the lowest growth was in the potting mixtures containing 0% vermicompost. Most flower buds and inflorescences occurred in the potting mixture containing 30% and 40% vermicompost, and the greatest length of inflorescences was observed in 30% vermicompost. Cymbidium grown in a container medium substituted with 30% and 40% had the most and greatest number of flowers. Some of the cymbidium growth and productivity enhancement, resulting from substitution of container medium with vermicompost, may be explained by nutritional factors; however, other factors, such as plant- growth-regulators and humates, might have also been involved since all plants were supplied regularly with all required nutrients.
<strong>REFERENCES</strong>
Arancon, N.Q., Edwards, C.A., Babenko, A., Cannon, J., Galvis, P. and Metzger, J.D. (2008) Influences of vermicomposts, produced by earthworms and microorganisms from cattle manure, food waste and paper waste, on the germination, growth and flowering of petunias in the greenhouse. Appl. Soil Eco. 39, 91-99.
Atiyeh, R.M., Edwards, C.A., Subler, S. and Metzger, J.D. (2001) Pig manure vermicompost as a component of a horticultural bedding plant medium: effects on physicochemical properties and plant growth. Biores. Tech. 78, 11- 20.
Atiyeh, R.M., Arancon, N.Q., Edwards, C.A. and Metzger, J.D. (2002) The influence of earthworm-processed pig manure on the growth and productivity of marigolds. Biores. Tech. 81, 103- 108.
Bachman, G.R. and Metzger, J.D. (2008) Growth of bedding plants in commercial potting substrate amended with vermicompost. Biores. Tech. 99, 3155-3161.
Gajalakshmi, S. and Abbasi, S.A. (2002) Effect of the application of water hyacinth compost/vermicompost on the growth and flowering of Crossandra undulaefolia, and on several vegetables. Biores. Tech. 85, 197- 199.
Gutie´rrez-Miceli, F.A., Moguel-Zamudio, B., Abud-Archila, M., Gutie´rrez-Oliva, V.F. and Dendooven, L. (2008) Sheep manure vermicompost supplemented with a native diazotrophic bacteria and mycorrhizas for maize cultivation. Biores. Tech. 99, 7020-7026.
Nikbakht, A., Kafi, M., Babalar, M., Xia, Y.P., Luo, A. and Etemadi, N. (2008) Effect of humic acid on plant growth, nutrition uptake and postharvest life of Gerbera. J. of Plant Nutr. 31, 2155- 2167.
Paradelo, R., Moldes, A.B. and Barral, M.T. (2008) Properties of slate mining wastes incubated with grape marc compost under laboratory conditions. Waste Manag. 1-6.
Singh, R., Sharma, R.R., Kumar, S., Gupta, R.K. and Patil, R.T. (2008) Vermicompost substitution influences growth, physiological disorders, fruit yield and quality of strawberry (Fragaria x ananassa Duch.). Biores. Tech. 99, 8507-8511.
Smith, C.J., Bond, W.J. and Wang, W. (1999) Waste- free: vermicompost to improve agricultural soils. CSIRO Land and Water, ACT 2601, Australia. pp. 1-21.
Vetal, A.A., Dutt, M. and Sonwane, P.C. (2003) Relative performance of Lilium (Lilium speciosum) in various substrates under polyhouse conditions. Crop Res. 25, 78-82.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Study of the increase in phytoremediation efficiency in a nickel polluted soil by the usage of native bacteria: Bacillus safensis FO.036b and Micrococcus roseus M21331431065ENB.MotesharezadehDept. of Soil Science Engineering, University College of Agriculture & Natural Resources, University of Tehran,
P. O. Box 4111, Karaj, Iran.Gh. R.Savaghebi-FiroozabadiDept. of Soil Science Engineering, University College of Agriculture & Natural Resources, University of Tehran,
P. O. Box 4111, Karaj, Iran.
* Corresponding author’s E-mail: moteshare@ut.ac.irJournal Article19700101Nickel (Ni) is a heavy metal and soil pollutant but existence of small amount of it as a metallic part of urease enzyme in the plants is necessary. Remediation of spots contaminated with heavy metals is particularly challenging. Phytoremediation, the use of plants for environmental restoration, is a novel clean up technology. In this study, five levels of nickel [control (Ni0), Ni125, Ni250, Ni500 and Ni1000 (mg kg1-)] as nickel chloride (NiCl2.6H2O) and three levels of bacterial inoculants [control (B0), Bacillus safensis FO.036b (B1) and Micrococcus roseus M2 (B2)] were used in sunflower (Helianthus annus), amaranthus (Amaranthus retroflexus) and alfalfa (Medicago sativa) for phytoextraction of nickel. A factorial experiment with a randomized complete block design (RCBD) with three replications was used. Results demonstrated that by increasing the nickel concentration in soil, its absorption by the plants has increased significantly. The highest concentration of nickel was found in shoot of amaranthus (176.83 mg kg-1) and in the root of plants, in alfalfa (462.73 mg kg-1) by usage of inoculant (P<0.05). The highest absorption of nickel occurred with B1 inoculant in amaranthus, which was 459.41 ?gPot-1. Applying this inoculant may also cause an increase in concentration of iron and zinc in the root and shoot of the plants.
<strong>REFERENCES </strong>
Abou-Shanab, R., A. I., J. S. Angle, A. I., J. S. and Chaney, R. L. (2006) Bacterial inoculants affecting nickel uptake by Alyssum murale from low, moderate and high Ni soils. Soil Biology & Biochemistry 38: 2882–2889.
Abou-Shanab, R., Ghanem, N., Ghanem, K. and Al-Kolaibe, A. (2007) Phytoremediation potential of crop and wild plants for multi-metal contaminated soils. Res. J. Agric. and Boil. Sci. 3: 370-376.
Alexander, D. B. and Zuberer, D. A. (1991) Use of chrome azurol S reagents to evaluate siderophore production by rhizosphere bacteria. Biol. Fertil. Soils 12: 39-45.
Alikhani, H. A. (2004) Potential use of native rhizobacteria strains as Plant Growth-Promoting Rhizobacteria (PGPR) and effects of selected strains on growth characteristics of Wheat, Corn and Alfalfa. Ph D Dissertation in Soil Science (Soil Biology), University of Tehran, Iran.
Allem, A., Isar, J. and Malik, A. (2003) Impact of long-term application of industrial wastewater on the emergence of resistance traits in Azotobacter chroococcum isolated from rhizospheric soil. Bioresource Technol. 86: 7-13.
Alloway, B. J. (1990) Heavy metals in soils. John Wiley & Sons, Inc. New York. USA.
Ansari, M. I. and Malik, A. (2007) Biosorption of nickel and cadmium by metal resistant bacterial isolates from agricultural soil irrigated with industrial wastewater. Bioresource Technol. 98: 3149-3153.
Bar-Ness, E., Chen, Y., Hadar, Y., Marchner, H. and Romheld, V. (1991) Siderophores of Pseudomonas Putida as an iron source for dicot and monocot plants. Plant Soil 130: 231-241.
Bigaliev, A. B., Boguspaev, K. K. and Znanburshin, E. T. (2000) Phytoremediation potential of Amaranthus sp. For heavy metals contaminated soil of oil producing territory. (WWW. Ipec.utulsa.edu).
Bollard, E.G. (1983) Involvement of unusual elements in plant growth and nutrition, in: A. La¨uchli, R.L. Bieleski (Eds.), Encyclopedia of Plant Physiology, New Series, Vol. 15B, Inorganic Plant Nutrition, Springer, pp. 695-744.
Bouyoucos, C. J. (1962) Hydrometer method improved for making particle size analysis of soil. Agron. J. 54: 464- 465. Bremner, J. M. (1996) Nitrogen-total. P. 1085-1122. In Sparks, D.L. et al., Method of soil analysis. Published by: Soil Science Society of America, Inc. American Society of Agronomy, Inc. Madison, Wisconsin, USA.
Brooks, R.R., Lee, J., Reeves, R. D. and Jaffre, T. (1977) Detection of nickeliferous rocks by analysis of herbarium specimens of indicator plants. J. Geochem. Explor. 7: 49–57.
Brooks, R. R. (1998) Plants that hyperaccumulate heavy metals. UK, CABI. Pub. Burd, GL., Dixon, DG. and Glick, BR. (1998) A Plant growth promoting bacterium that decreases nickel toxicity in plant seedling. Appl Environ. Microbial. 64: 3663-3668.
Burd, GL., Dixon, DG. and Glick, BR. (2000) Plant growth-promoting bacteria that decrease heavy metal toxicity in plants. Can. J. Microbiol. 46: 237-245.
Cai, S., Lin, Y., Zhineng, H., Xianzu, Z., Zhalou, Y., Huidong, X., Yuanrong, L., Rongdi, J., enhau, Z. and Fangyuan, Z. (1990) Cadmium exposure and health effects among residents in an irrigation area with ore dressing wastewater. Sci. Total Environ. 90: 67-73.
Erakhrumen, A. and Agbontalor, A. (2007) Phytoremediation: an environmentally sound technology for pollution prevention, control and remediation in developing countries, Educational Research and Reviews, 7: 151-156.
Garbisu, C. and Alkorta, I. (2001) Phytoextraction: a cost effective plant based technology for the removal of metals from the environments. Biores. Technol. 77: 229–236.
Ghosh, M. and Singh, S. P. (2005) A review on phytoremediation of heavy metals and utilization of its byproducts. Appied Ecology and Environmental Research 3: 1-18.
Glick, B. R. (1995) The enhancement of plant growth by free-living bacteria. Can. J. Microbiol. 41: 109-117.
Glick, B. R. (2003) Phytoremediation: Synergistic use of plants and bacteria to clean up the environment. Biotechnology Advances 21: 383-393.
Hemke, P.H. and Sparks, D. L. (1996). Potassium. pp. 551-574. In Sparks, D.L. et al., Method of soil analysis. Published by: Soil Science Society of America, Inc. American Society of Agronomy, Inc. Madison, Wisconsin, USA.
Holt, J. G., Kreig, N. R., Sneath, P. H. A., Staley, J. T. and Williams, S. T. (1994) Bergeys manual of determinative bacteriology. Ninth ed. Baltimore, maryland: Williams and Wilkins.
Hughes, M. N. and Poole, R. K. (1989) Metals and micro-organisms. Chapman and Hall, New York, USA. Jankite, A. and Vasarevicius, S. (2007) Use of poacea f. species to decontaminate soil from heavy metals. Ekologija 53: 84-89.
Karimzadeh, A. R. (1992) Evaluation of type, mineralogy, geochemical and probably genese of lead and zinc Araks Mine. M.S in Pedology, Tarbiat Moallem University, Tehran, Iran.
Kuffner, M. M., Puschenreiter, G. M., Wieshammer, G., Gorfer, M. and Sessitsch, A. (2008) Rhizosphere bacteria affect growth and metal uptake of heavy metal accumulating willows. Plant Soil. 304: 35-44.
Kuo, S. (1996) Phosphorus. pp. 869-920. In Sparks, D.L. et al., Method of soil analysis. Published by: Soil Science Society of America, Inc. American Society of Agronomy, Inc. Madison, Wisconsin, USA.
Lasat, M. M. (2000) The use of plants for the removal of toxic metals from contaminated soil. Grant No. CX 824823.
Lasat, M. M. (2002) Phytoextraction of toxic metal: A review of biological mechanisms. J. Environ. Qual. 31: 109- 120.
Lindsay, W. L. and Norvell, W. A. (1978) Development of DTPA soil test for zinc, iron, manganese and copper. Soil Sci. Soc. Am. J. 42: 421-428.
Llamas, A., Ullrich, C. I. and Sanz, A. (2008) Ni2+ toxicity in rice: Effect on membrane functionality and plant Motesharezadeh and Savaghebi-Firoozabadi 141 water content. Plant Physiology and Biochemistry 46: 905-910.
Lombi, E., Zhao, F. J., Dunham, S. J. and McGrath, S. P. (2001) Phytoremediation of heavy metal– contaminated soils, natural hyperaccumulation versus chemically enhanced phytoextraction. J. Environ. Qual. 30: 1919-1926.
McIlveen, W. D. and Negusanti J. J. (1994) Nickel in the terrestrial environment. Sci. Total Environ 148: 109–138.
Madejon, P., Murillo, J. M., Maranon, T., Cabrera, F. and Soriano, M. A. (2003) Trace element and nutrient accumulation in sunflower plants two years after the Aznalcollar mine spill. The Science of the total Environment 307: 239-257.
Madhaiyan, M., Poonguzhali, S. and Tongmin, S. (2007) Metal tolerating methylotrophic bacteria reduces nickel and cadmium toxicity and promotes plant growth of tomato (Lycopersicon esculentum L.). Chemosphere 69: 220– 228.
Marchiol, L., Assolari, S., Sacco, P. and Zerbi, G. (2004) Phytoextraction of heavy metals by canola and radish grown on multicontaminated soil. Environ. Pollut. 132: 21-27.
Marques, A. P. G. C., Moreira, H., Rangel, A. O. S. S. and Castro, P. M. L. (2009) Arsenic, lead and nickel accumulation in Rubus ulmifolius growing in contaminated soil in Portugal. Journal of Hazardous Materials 165: 174–179.
Masalha, J., Kosegrten, H., Elmaci, O. and Mengal, K. (2000) The central role of microbial activity for iron acquisition in maize and sunflower. Biol. Fertil. Soils 30: 433-439.
Moteshare zadeh, B., Savaghebi, Gh. R., Alikhani, H. A. and Hosseini, H. M. (2008) Effect of Sunflower and Amaranthus Culture and Application of Inoculants on Phytoremediation of the Soils Contaminated with Cadmium. American-Eurasian J. Agric. & Environ. Sci. 4: 93-103.
Motesharezadeh, B. and SavaghebiFiroozabadi, Gh. R. (2010) Bioaccumolation and phytotransportation of nickel by medicago sativa in a calcareous soil of Iran. Desert (In Press).
Nelson, R. E. (1982) Carbonate and gypsum, P. 181-196. In A.L. Page (ed), Methods of soil analysis. Part 2. 2<sup>nd</sup> edn. Chemical and microbiological properties. Agronomy monograph no.9. SSSA and ASA. Madison, WI.
Nelson, D.W. and Sommers, L. E. (1982) Total carbon, organic carbon, and organic mater, p. 539-580.In A. L. Page (ed), methods of soil analysis. Part 2. 2nd ed. Chemical and microbiological properties. Agronomy monograph no.9. SSSA and ASA, Madison, WI.
Ouzounidou, G., Moustakas, M., Symeonidis, L. and Karataglis, S. (2006) Response of wheat seedlings to Ni stress: Effects of supplemental calcium, Arch. Environ. Contam. Toxicol. 50: 346-352.
Papazoglou, E. G., Serelis, K. G. and Bouranis, D. L. (2007) Impact of high cadmium and nickel soil concentration on selected physiological parameters of Arundo donax L. European Journal of Soil Biology 43: 207-215.
Penroz, D. M. and Glick, B. R. (2001) Levels of ACC and related compounds in exudates and extracts of canola seeds treated with ACC-deaminasecontaining plant growth promoting bacteria. Can. J. Microbiol. 47: 368-372.
Prasad, M.N.V. (2004) Heavy metal stress in plants, Second Ed. Norosa Publishing House. USA.
RAAD, A. (1976) Carbonates in J. A. McKeague, ed. Manual on soil sampling and methods of analysis. Subcommittee (of Canada Soil Survey Committee) on Methods of Analysis Soil Research Inst., Ottawzt.
Rhoades, J. D. (1996) Electrical conductiity and total dissolved solids, P. 417-436. In Sparks, D. L. et al., Method of soil analysis. Published by: Soil Science Society of America, Inc. American Society of Agronomy, Inc. Madison, Wisconsin, USA.
Robinson, B. H., Brooks, R. R. and Clother, B. E. (1999) Soil amendments Affecting Nickel and Cobalt Uptake by Berkheya coddii: Potential Use for Phytomining and Phytoremediation. Annals of Botany 84: 689-694.
Salt, D.E., Blaylock, M., Kumar, P. B. A. N., Dushenkov, V., Ensley, B. D., Chet, L. and Raskin, L. (1995) Phytoreediation: a novel strategy for the removal of toxic metals from the environment using plants. Biotechnology 13: 468–474. S
hing, X.F. and Xia, J. J. (2006) Improvement of rape (Brassica napus) plant growth and cadmium uptake by cadmium-resistant bacteria. Chemosphere 64: 1036–1042.
Smyj, R.P. (1997) A conformational analysis study of a nickel (II) enzyme: urease. Journal of Molecular Structure 391: 207–208.
Sumner, M. E. and Milker, W. P. (1996) Cation exchange capacity and exchange coefficients, P. 1201-1230. In Sparks, D.L. et al., Method of soil analysis. Published by: Soil Science Society of America, Inc. American Society of Agronomy, Inc. Madison, Wisconsin, USA.
Thomas, G. W. (1996) Soil pH and soil acidity, P. 475-490. In Sparks, D.L. et al., Method of soil analysis. Published by: Soil Science Society of America, Inc. American Society of Agronomy, Inc. Madison, Wisconsin, USA.
Wei, W., Jiang, J., Li, X., Wang, L. and Yang, S. S. (2004) Isolation saltsensitive mutants from sinorhizobium meliloti and characterization of genes involved in salt tolerance. Letters in Applied Microbiology 39: 278-283.
Yan-de, J., Zhen-li, H. and Xiao, Y. (2007) Role of soil rhizobacteria in phytoremediation of heavy metal contaminated soils. J. Zhejiang Univ. Sci. 8: 197-207.
Zaidi, S., Usmani, S., Singh, B. R. and Musarrat, J. (2006) Significance of Bacillus subtilis strain SJ-101 as a bioinoculant for concurrent plant growth promotion and nickel accumulation in Brassica juncea. Chemosphere 64: 991–997.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Age, growth and mortality of the Persian Sturgeon, Acipenser persicus, in the Iranian waters of the Caspian Sea1591671066ENS.BakhshalizadehDept. of Fisheries, Faculty of Natural Resources, University of Guilan, P.O. Box: 1144, Sowmehsara, IranA.BaniDept. of Fisheries, Faculty of Natural Resources, University of Guilan, P.O. Box: 1144, Sowmehsara, Iran.S.AbdolmalakiInland water Aquaculture Research Institute, P.O. Box: 66, Bandar Anzali, Iran.R.NahrevarInland water Aquaculture Research Institute, P.O. Box: 66, Bandar Anzali, Iran.R.RastinInland water Aquaculture Research Institute, P.O. Box: 66, Bandar Anzali, Iran.
*Corresponding author’s E-mail: shima_ba83@yahoo.comJournal Article19700101The age and growth of the Persian Sturgeon, Acipenser persicus, obtained from the Iranian coastal waters of the Caspian Sea, were studied through analysis of the pectoral fin ray section from 180 specimens, ranging in fork length (FL) from 66 to 203 cm. The specimens were obtained from commercial fisheries between October 2008 and June 2010. Interpretation of growth bands in the pectoral fin ray sections was carried out objectively using the direct reading of thin sections and image analysis. The maximum age recorded in this study for the spacimens of Persian Sturgeon was 39 years. The von Bertalanffy growth parameters estimated for females were greater than for males. The estimates of asymptotic length (L?) and growth coefficient (K) of females were 173.07 cm and 0.1 year -1, respectively and for males 164.33 cm L? and 0.08 year -1 K respectively,. Total mortality coefficient (Z) for females and males was estimated to be 0.45 and 0.76 year -1, respectively. This study revealed differences in life history parameters of the Persian Sturgeon compared with those of previous studies, which may be associated with the current increased fishing pressure and degradation of environmental conditions.
<strong>REFERENCES </strong>
Babushkin, N. YA and Borzenko, M.P. (1951) Sturgeon of the Caspian. Pishchepromizdat, Moscow. pp5-67. (In Russian).
Beamish, R. J. (1981) Use of fin ray sections to age Walleye pollock, Pacific cod, and albacore, and the importance of this method. Trans. Am. Fish. Soc. 110, 287- 299.
Beamish, R. J and Fournier, D. A. (1981). A method for comparing the precision of a set of age determinations. Can. J. Fish. Aquat. Sci. 38, 982–983.
Billard, R and Lecointre, G. (2001) Biology and conservation of sturgeon and paddlefish. Fish Biol and Fishery. 10, 355–392.
Brennan, J. S., and G. M. Cailliet. (1989) Comparative age-determination techniques for white sturgeon in California. Trans. Am. Fish. Soc. 118, 296-310.
Birstein, V; Bemis, W and Waldman, J. (1997) The threatened status of Acipenseriform species: a summary. Environ Biol Fish. 48, 427–435.
Chang, W. Y. B. (1982). A statistical method for evaluating the reproducibility of age determination. Can. J. Fish. Aquat. Sci. 39, 1208– 1210.
Chen, Y. D; Jackson, D. A and Harvey, H. H. (1992) A comparison of von Bertalanffy and polynomial functions in modelling fish growth data. Can. J. Fish. Aquat. Sci. 49, 1228–1235.
Gulland, J. A. (1983) Fish stock assessment: a manual of basic methods. FAO (United Nations Food and Agriculture Organization)/Wiley Series on Food and Agriculture, 1. John Wiley & Sons, New York.
Halajian, A; Kazemi, R; Bahmani, M; Dajandian, S; Yosefi, A; Pordehghan, M. (2006) Examination of liver branches and gonad tissues of sturgeon which catched south of Caspian Sea in 2003- 2004. International Sturgeon Institute, Iran, 39 p. (In Persian).
Jearld, A. (1992) Age determination. In: Fisheries techniques. (eds. Nielson L. A. & Johnson D. L.), pp 301-324. The American Fisheries Society, Bethesda, Maryland.
Koch, J. D; Schreck, W. J and Quist, M. C. (2008) Standardised removal and sectioning locations for shovelnose sturgeon fin rays. Fish Manag Eco. 15, 139-145.
King, M. (1995) Fisheries Biology, Assessment and Management. Fishing News Books, Oxford, 352 p.
Markarova, I. and Alekperov, A. P. (1988) Age composition of sturgeons (Acipenseridae) occurring along the western shores of the south Caspian. Vopr Ichthyology. 6, 993-997.
Myers, R and Worm, B. (2003) Rapid worldwide depletion of predatory fish communities. Nature 423, 280–283.
Moghim M. (2003) Annual report on stock assessment of caviar fishes. Ecological research center of Mazandaran province. Iran, pp 107. (In Persian).
Morison, A. K., Robertson, S. G. and Smith, D. G. (1998) An integrated system for production fish aging: image analysis and quality assurance. N Am J Fish Manag. 18, 587–598.
Musick, J. A. (1999) Criteria to define extinction risk in marine fishes. Fisheries 24, 6–14.
Pauly, D; Alder, A; Bennett, E; Christensen, V; Tyedmers, P and Watson, R. (2003) The future of fisheries. Science. 302, 1359–1361.
Pikitch E. K; Doukakis, p; Lauck, L; Chakrabarty, P and Erickson, D. L. (2005) Status, trends and management of sturgeon and paddlefish fisheries. Fish and Fishery. 6, 233-265.
Pourkazemi, M. (2006) Caspian Sea sturgeon Conservation and Fisheries: Past present and Future. J Appl IchthyolJ Appl Ichthyol 22 (Suppllement 1), 12-16.
Putilina, L. A. (1981) Qualitative structure of the spawning part of the Persian Sturgeon population of the Volga. Rational principles of Sturgeon Farming. Volgograd, pp 209-210. (In Russian).
Rien, T. A. and Beamesderfer, R. C. (1994) Accuracy and precision of white sturgeon age estimates from pectoral fin rays. Trans. Am. Fish. Soc. 123, 255- 265.
Ricker W. E. (1973) Linear regressionbs in fishery research. J Fish Res Board Can. 30, 409-434. Ricker, W.E. (1975) Computation and Interpretation of Biological Statistics of Fish Population. Bull Fish Res Board Can. 191, 382 p.
Roberts, C. M. and Hawkins, J. P. (1999) Extinction risk in the sea. Trends Ecol Evol. 14, 241–246.
Saborowski, R and Buchholz, F. (1996) Annual changes in the nutritive state of North Sea. J Fish Biol. 49, 173-194.
Safina, C; Rosenberg, A; Myers, R; Quinn, T and Collie, J. U. S. (2005) Ocean fish recovery: staying the course. Science. 309, 707–708.
Sainsbury, K.J. (1980) Effect of individual variability on the von Bertalanffy growth equation. Can. J. Fish. Aquat. Sci. 37, 241-247.
Stevenson, J. T., and D. H. Secor. (2000) Age determination and growth of Hudson River Atlantic sturgeon (Acipenser oxyrinchus) Fish Bull. 98,153– 166.
Taghavi motlagh, A. (1996) Population dynamics of Sturgeon in the southern part of the Caspian Sea. Unpubl. PhD Dissertation, Univ. of Wales, Swansea, 300 p.
Zar, J.H. (1996) Biostatistical analysis. Prentice Hall, NJ., 662 p.
Zheng, Z.H. Wang, P.L. and Pu, F.D. (1999) A comparative study on pollen exine ultrastructure of Nothofagus and the other genera of Fagaceae. Acta Phytotax. Sin. 37: 253-258.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Effects of Caspian Sea water level fluctuations on existing drains1691801067ENGH.Aghajanee MazandaraniCollege of Agricultural Engineering, Sari Agricultural Sciences and Natural Resources University, Iran.A.ShahnazariCollege of Agricultural Engineering, Sari Agricultural Sciences and Natural Resources University, Iran.R.FazoulaCollege of Agricultural Engineering, Sari Agricultural Sciences and Natural Resources University, Iran.M.Nemati KutenaeeCollege of Agricultural Engineering, Sari Agricultural Sciences and Natural Resources University, Iran.E.PerratonIDMSC. SNC-Lavalin International Inc. and Hydrosult Inc., * Corresponding author’s E-mail: Aliponh@yahoo.comJournal Article19700101This study is an attempt to develop an integrated methodology to predict the impact of the Caspian Sea on flooding using Geographic Information Systems (GIS) and hydrodynamic modeling. A rise in the sea level might lead to major flooding events, and have a severe impact on the spatial development of cities and regions. The feasibility of simulating a flood event along a drain channel is evaluated near residential development areas along the Chapakroud drain. The results of the study show that about 2 km of the drain embankments would be influenced by changes in sea water levels. For elevations of -23 m and -24 m, the maximum depths of water in the drain are 3.95 m and 2.94 m. The tail of the backwater reaches 3465 m and 2390 m, respectively, leading to flooded areas of 35.97 ha and 12.88 ha. The study shows that at these elevations environmental and social problems arise with regards to the drain. The results also indicate that GIS is an effective tool for floodplain visualization and analysis. It should be noted that the mixture of salt and soft water, as a result of rising sea water level, is a problem that was not investigated in this study and should be examined in the future.
<strong>REFERENCES</strong>
Church, J.A. et al. (2001) Changes in Sea Level.Climate Change. The Scientific Basis, Contribution of Working Group 1 to the Third Assessment Report of the Intergovernmental Panel on Climate Change Houghton Tech, 881 p.
Chuan, T. and Jing, Z. (2006) Torrent risk zonation in the UpstreamRedriverBasin based on GIS, (J. Geogr). Sci. 16: 479- 486.
Earles, TA. et al. (2004) Los alamos forest fire impact modeling. J. Am. Water. Resour. Assoc. (JAWRA) (DOI: 10.1111/j.1752- 1688. 2004.tb01036.x.). 40: 371-384.
Hatipoglu, A. and Keskin, F. (2007) Floodplain delineation, Mugla-Dalaman Plan Using GIS Based River Analysis System.State Hydraulic Works. Practices on River Basin Management, 11 p.
U.S. Army Corps of Engineers. (2000) User Manual of HEC-RAS.Hydrologic Engineering Center, 747 p.
U.S. Army Corps of Engineers, Hydrologic Engineering Center. (1997) HEC-RAS river Analysis System: Hydraulic Reference Manual. Hydrologic Engineering Center, Davis, 240 p.
Malkin, Ch. (2009) Climate Change and Rising Sea Levels.A Geographic Information Systems Analysis of the Potential Impact on Railroad Corridors in New Castle County, Delaware. REUProgram. Disaster Research Center University Transportation Center, 15 p.
Mazandaran Regional Water Company (MRWC). (2007) Reports of Complementary Studies Related to the First Phase of Alborz Dam are I&D System, 397 p.
MahabGhodss Consulting Engineers (MGCE)(2007) Midterm Report of Alborz Dam Project, 10 p.
Noman,NS. and Nelson, EJ. (2003) Improved process for floodplain delineation from digital terrain models. J. Water Res. 129: 427-436.
Suareza, P. et al. (2005) Impacts of Flooding and Climate Change on Urban Transportation. A System wide Performance Assessment of the Boston Metro Area. Transportation Research Part D: Transport and Environment 10: 231-244.
Walker, WS. AndMaidment, DR. (2006) Geodatabase Design for FEMA Flood Hazard Studies, CRWR Online Report 06-10, Center for Research in Water Resources, University of Texas at Austin, 197 p.
Yang, j.R.D. et al. (2006) Appling the HECRAS Model and GIS Techniques in River Network Floodplain Delineation.Can. J. Civ. Eng., 33: 19-29.
University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Application of classification trees-J48 to model the presence of roach (Rutilus rutilus) in rivers1891981068ENR.ZarkamiDept. of Environmental Science, Faculty of Natural Resources, University of Guilan, P.O.Box 1144, Sowmehsara,
Guilan, Iran.
E-mail: rzarkami2002@yahoo.co.ukJournal Article19700101In the present study, classification trees (CTs-J48 algorithm) were used to study the occurrence of roach in rivers in Flanders (Belgium). The presence/absence of roach was modelled based on a set of river characteristics. The predictive performance of the CTs models was assessed based on the percentage of Correctly Classified Instances (CCI) and Cohen\'s kappa statistics. To find the best model performance, a 3-fold cross validation techniques was applied on the dataset. The effect of Pruning Confidence Factors (PCFs) was examined on the reliability and model complexity. Based on the obtained results, the induced model could predict well the presence/absence of roach in the rivers. The highest overall means of two model performances showed that the models were reliable. When analyzing the ecological relevance of CTs, it seemed that the structural-habitat variables were more the main predictors than the water quality ones to predict the occurrence of roach in rivers. In particular, the distance from the source and width contributed more to the prediction of roach while among water quality variables, only electric conductivity was relatively important in this regard.
<strong>REFERENCES</strong>
Belpaire, C., Smolders, R., Vanden Auweele, I., Ercken, D., Breine, J., Van Thuyne, G. and Ollevier, F. (2000) An Index of Biotic Integrity characterizing fish populations and the ecological quality of Flandrian water bodies. Hydrobiologia. 434, 17-33.
Brabrand, A. (1985) Food of roach, Rutilus rutilus and ide, Leuciscus idus: significance of diet shift for interspecific competition in omnivorous fishes. Oecologia. 66, 461-467.
Brabrand, A. and Faafeng, B. (1994) Habitat shift in roach, Rutilus rutilus induced by the introduction of pikeperch, Stizostedion lucioperca. Limnologie. 25, 21-23.
Breine, J., Simoens, I., Goethals, P.L.M., Quataert, P., Ercken, D., Chris, V. L. and Belpaire, C. (2004) A fish-based index of biotic integrity for upstream brooks in Flanders (Belgium). Hydrobiologia. 522, 133-148.
Breiman, L., Friedman, J., Olshen, R. and Stone, C. (1984) Classification and Regression Trees. Wadsworth, Pacific Grove, CA, USA.
Brosse, S. and Lek, S. (2000) Modelling roach, Rutilus rutilus microhabitat using linear and nonlinear techniques. Freshwater. Bio. 44, 34-41.
Cohen, J. (1960) A coefficient of agreement for nominal scales. Educ. Psychol. Meas. 20 (1), 37-46.
Copp, G. H. (1990) Shifts in the microhabitat of larval and juvenile the roach, Rutilus rutilus L. in a floodplain channel. J. Fish Biol. 36, 683-692.
Copp, G. H. (1992) An empirical model for predicting microhabitat of 0+ juvenile fishes in a lowland river catchment. Oecologia. 91, 338-345.
Dakou, E., Goethals, P.L.M., D’heygere, T., Dedecker, A.P., Gabriels, W. and De Pauw, N. (2006) Development of artificial neural network models predicting macroinvertebrate taxa in the river Axios (Northern Greece). Annales de Limnologie, Ann. Limnol., Int. J. Lim. 42, 241- 250.
Dakou, E., D'heygere, T., Dedecker, A.P., Goethals, P.L.M., LazaridouDimitriadou, M. and De Pauw, N., (2007) Decision tree models for prediction of macroinvertebrate taxa in the river Axios (Northern Greece). Aquat. Ecol. 41,399-411.
Dedecker, A.P., Goethas P.L.M., Gabriels, W. and De Pauw, N. (2002) Comparison of Artificial Neural Network (ANN) model developments methods for prediction of macroinvertebrates communities in the Zwalm river basin in Flanders, Belgium. The ScientificWorldJo. 2, 96-104.
D’heygere, T., Goethals, P. L. M. and De Pauw, N. (2003) Use of genetic algorithms to select input variables in decision tree models for the prediction of benthic macroinverteberates. Ecol. Model. 160, 291-300.
D’heygere, T., Goethals, P. L. M. and De Pauw, N. (2006) Genetic algorithms for optimization of predictive ecosystems models based on decision trees and neural networks. Ecol. Model. 195, 20-29.
Dzeroski, S., Grobovic, J. and Walley, W.J. (1997) Machine learning applications in biological classification of river water quality, pp.429-448. In: Michalski, R.S., Bratko, I. & Kubat, M. Machine learning data mining: methods and applications. John Wiley and Sons Ltd., New York.
Eklov, P. (1997) Effects of habitat complexity and prey abundance on the spatial and temporal distributions of perch, Perca fluviatilis and pike, Esox lucius. Can. J. Fish. Aquat. Sci. 54, 1520- 1531.
Fielding, A.H. and Bell, J.F. (1997) A review of methods for the assessment of prediction errors in conservation presence/absence models. Environ. Conserv. 24, 38-49.
Garner, P. (1995) Suitability indices for Zarkami 197 juvenile 0+ roach, Rutilus rutilus (L.) using point abundance sampling data. Regul. River. 10, 99-104.
Goethals, P.L.M. and De Pauw, N. (2001) Development of a concept for integrated ecological river assessment in Flanders, Belgium. J. Limnol. 60, 7-16.
Goethals, P. L. M. (2005) Data driven development of predictive ecological models for benthic macroinvertebrates in rivers. PhD thesis. University of Ghent, 377 p.
Goethals, P.L.M., Dedecker, A.P., Gabriels, W., Lek, S. and De Pauw, N. (2007) Applications of artificial neural networks predicting macroinvertebrates in freshwaters. Aquat. Ecol. 41, 491-508.
Horppila, J. (1994) The diet and growth of roach, Rutilus rutilus (L.)) in Lake Vesijarvi and possible changes in the course of biomanipulation. Hydrobiologia. 294, 35-41.
Kahl, U., Dorner, H., Radke, R.J., Wagner, A. and Benndorf, J. (2001) The roach population in the hypertrophic Bautzen Reservoir: structure, diet and impact on Daphnia galeata. Limnologica. 31: 61-68.
Kahl, U. and Radke, R. J. (2006) Habitat and food resource use of perch and roach in a deep mesotrophic reservoir: enough space to avoid competition? Ecol. Freshw. Fish. 15, 48-56.
Jackson, D.A. and Harvey, H.H. (1997) Qualitative and quantitative sampling of lake fish communities. Can. J. Fish. Aquat. Sci. 54, 2807-2813.
Johansson, L. and Persson, L. (1986) The fish community of temperate, eutrophic lakes. In: Riemann, M.B.S. ed. Carbon dynamics of eutrophic, temperate lakes: the structure and functions of the pelagic environment. Amsterdam: Elsevier, pp. 237-266.
Lawton, J. (1996) Patterns in ecology. Oikos. 75, 145-147. Hoang, T.H., Lock, K., Mouton, A. and Goethals, P. L.M. (2010) Application of classification trees and support vector machines to model the presence of macroinvertebrates in rivers in Vietnam. Ecol. Inform. 5, 140-146.
Manel, S., Dias, J.M., Buckton, S.T. and Ormerod, S. J. (1999) Alternatives methods for predicting species distribution: an illustration with Hialayan river birds. J. Appl. Ecol. 36,734-747.
Manel, S., Williams, H.C. and Ormerod, S.J. (2001) Evaluating presence-absence models in ecology: the need to account for prevalence. J. Appl. Ecol. 38, 921-931.
Olden, J.D. and Jackson, D.A. (2002) A comparison of statistical approaches for modelling fish species distributions. Freshwater Biol. 47, 1976- 1995.
Quinlan, J.R. (1986) Induction of decision trees. Mach.Learn. 1, 81-106.
Quinlan, J.R. (1993) C4.5: Programs for machine learning. Morgan Kaufmann, San Francisco, USA.
Persson, L. and Greenberg, L.A. (1990) Juvenile competitive bottlenecks- the perch, Perca fluviatilis- roach, Rutilus rutilus interaction. Ecology. 71, 44-56.
Persson, L. (1983) Effects of intraspecific and interspecific competition on dynamics and size structure of a perch, Perca fluviatilis and a roach, Rutilus rutilus population. Oikos. 41,126-132.
Poizat G. and Pont D. (1996) Multi-scale approach to species-habitat relationships: juvenile fish in a large river section. Freshwater Biol. 36, 611- 622.
Ricciardi, A. and Rasmussen, J.B. (1999) Extinction rates of North American freshwater fauna. Conserv. Biol. 13, 1220-1222.
Rossier, O., Castella, E. and Lachavanne, J.B. (1996) Influence of submerged aquatic vegetation on size class distribution of perch, Perca fluviatilis and roach, Rutilus rutilus in the littoral zone of Lake Geneva (Switzerland). Aquat. Sci. 58, 1-14.
Schoener, T. (1974) Resource partitioning in ecological communities. Science. 185, 27-39.
Schulze, T., Dörner, H., Hölker, F. and Mehner, T. (2006) Determinants of habitat use in large roach. J. Fish Biol. 69, 1136-1150.
Sharma, C.M. and Borgstrøm, R. (2008) Shift in density, habitat use, and diet of perch and roach: An effect changed predation pressure after manipulation of pike. Fish. Res. 91, 98-106.
Skov, C., Berg, S., Jacobsen, L. and Jepsen, N. (2002) Habitat use and foraging 198 The occurrence of the roach in the rivers success of 0+ Pike, Esox lucius (L.) in experimental ponds related to prey fish, water transparency and light intensity. Ecol. Freshw. Fish. 11, 65-73.
Vinni, M., Horppila, J., Olin, M., Ruuhijarvi, J. and Nyberg, K., (2000) The food, growth and abundance of five co-existing cyprinids in lake basins of different morphometry and water quality. Aquat. Ecol. 34, 421-431.
Werner, E.E., Hall, D.J., Laughlin, D.R., Wagner, D.J., Wilsmann, L.A. and Funk, F.C. (1977) Habitat partitioning in a freshwater fish community. J. Fish.Res.Board.Can. 34, 360-370.
Witten, J.H. and Frank, E. (2000) Data mining: practical machine learning tools and techniques with Java implementations, Morgan Kaufman publishers, San Francisco. 369 p.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401A revision of chestnut-leaved oak (Quercus castaneifolia C. A. Mey.; Fagaceae) in Hyrcanian Forests of Iran1451581069ENP.PanahiBotany Research Division, Research Institute of Forests and Rangelands of Iran, P.O. Box 13185-116, Tehran, Iran.Z.JamzadBotany Research Division, Research Institute of Forests and Rangelands of Iran, P.O. Box 13185-116, Tehran, Iran.M.R.PourmajidianSari Agricultural Sciences and Natural Resources University, Sari, Iran.A.FallahSari Agricultural Sciences and Natural Resources University, Sari, Iran.M.PourhashemiForest Research Division, Research Institute of Forests and Rangelands of Iran, Tehran, Iran
*Corresponding author’s E-mail: Panahi@rifr-ac.irJournal Article19700101Chestnut-leaved oak (Quercus castaneifolia C. A. Mey) is one of the most important native oaks of Iran distributed in the Hyrcanian Forests. The pure and mixed stands of it cover about 6.5% of these forests. The species represents morphological variations which have resulted in the description of several infraspecific taxa by different authors. Eight taxa were recognized as subspecies and varieties of Q. castaneifolia. In this survey, a set of quantitative and qualitative micro-morphological characteristics such as type of trichome, number and length of trichome rays, type of epicuticular waxes, type and shape of stomata, shape and sculptural features of pollen exine were studied using light microscopy and scanning electron microscopy. These characters were analyzed by the discriminant analysis method and combined with the macromorphological characters to designate the variation within the species and to evaluate the existing infraspecific taxa. Based on our results, the studied taxa are defined into four infraspecific taxa as follows: Q. castaneifolia subsp. castaneifolia var. castaneifolia, Q. castaneifolia subsp. castaneifolia var. minuta, Q. castaneifolia subsp. aitchisoniana, Q. castaneifolia subsp. undulate. The studied characteristics showed to be diagnostic for identification of the infraspecific taxa.
<strong>REFERENCES </strong>
Aas, G. (1998) Morphologische und ökologische Variation mitteleuropäischer Quercus Arten: Ein Beitrag zum Verständnis der Biodiversität. Libri Botanici, Bd. 19. IHW-Verlag Eching bei München, 221 p.
Bačić, T. (1981) Investigations of stomata of three oak species with light and scanning electron microscope. Acta Bot. Croat. 40: 85-90.
Baranski, M. (1975) An analysis of variation within white oak (Quercus alba L.). North Carol. Agri. Expe. St. Tech. Bull. 236, 176 p.
Blue, M.P. Jensen, R.J. (1988) Positional and seasonal variation in oak (Quercus; Fagaceae) leaf morphology. Amer. J. Bot. 75: 939-947.
Boissier, E. (1879) Flora Orientalis. Geneva et Basileae, 4: 1162-1174.
Burger, W.C. (1974) The species concept in Quercus. Taxon, 24: 45-50.
Bussotti, F. Grossoni, P. (1997) European and Mediterranean oaks (Quercus L.; Fagaceae): SEM characterization of the micromorphology of the abaxial leaf surface. Bot. J. Linn. Soc. 124: 183-199.
Camus, A. (1936-1938) Les chênes. Monographie du genre Quercus. Encyc. Econ. Sylvic. Lechevalier, Paris. 1: 557.
Colombo, P.M. Lorenzoni, F.C. and Grigoletto, F. (1983) Pollen grain morphology supports the taxonomical discrimination of Mediterranean oaks (Quercus, Fagaceae). Pl. Syst. Evol. 141: 273-284.
Djavanchir Khoie, K. (1967) Les chênes de L`Iran. PhD Dissertation, Universite de Montpellier, Faculte des Sciences, 221 p.
Erdtman, G. (1986) Pollen morphology and plant taxonomy, Angiosperms (an introduction to palynology). Leiden E. J. Brill, 553 p.
Faegri, K. and Iversen, J. (1964) Textbook of pollen analysis. Munksgaard, Copenhagen, 237 p.
Forest, Range and Watershed Organization of Iran (2003) Kimiaye sabz. F. R. W. O Publication, 368 p.
Halbritter, H. Weber, M. Zetter, R. FroschRadivo, A. Buchner, R. and Hesse, M. (2006) PalDat- Illustrated handbook on pollen terminology. Univ. of Vienna. 61 p.
Hardin, J.W. (1976) Terminology and classification of Quercus trichomes. J. Elisha Mitchell Sci. Soc. 92: 151-161.
Hardin, J.W. (1979a) Atlas of foliar surface features in woody plants, I. vestiture and trichome types of eastern north American Quercus. Bull. Torrey Bot. Club.106: 313-325.
Hardin, J.W. (1979b) Patterns of variation in foliar trichomes of eastern North American Quercus. Amer. J. Bot. 66: 576-585.
Harley, M.M. (1992) The potential value of pollen morphology as an additional taxonomic character in subtribe Ociminae (Ocimeae: Nepetoideae: Labiatae). In: Harley, R.M., Reynolds, T. (Eds.), Advances in Labiatae Science, Royal Botanic Gardens. Kew, Richmond, Surrey, UK, pp. 125-138.
Hedge, I.C. Yaltirik, F. (1982) Fagaceae. In: Davis, P.H. Edmondson, J.R. Mill, R.R. Tan, K. (eds.), Flora of Turkey and the east Aegean islands, Edinburg Univ. Press, 7: 657-683.
Jarvis, D.I. Leopold, E.B. and Liu, Y. (1992) Distinguishing the pollen of deciduous oaks, evergreen oaks, and certain Rosaceous species of southwestern Sichuan province, China. Rev. Palaeobot. Palynol. 75: 259-271.
Jones, J.H. (1986) Evolution of the Fagaceae: the implications of foliar features. Ann. Missouri Bot. Gard. 73: 228-275.
Kedves, M. Pàrdutz, À. and Varga, B. (2002) Experimental investigation on the pollen grains of Quercus robur L. Taiwania, 47: 43-53.
Koch, K. Barthlott, W. (2009) Superhydrophobic and superhydrophilic plant surfaces: an inspiration for biomimetic materials. Philos. T. Roy. Soc. A. 367: 1487-1509.
Lawrence, G.H.M. (1951) Taxonomy of vascular plants. Mac Millan Co., New York.
Llamas, F. Perez-Morales, C. Acedo, C. and Penas Merino, A. (1995) Foliar trichomes of the evergreen and semideciduous species of the genus Quercus (Fagaceae) in the Iberian Peninsula. Bot. J. Linn. Soc. 117: 47-57.
Liu, Y.S. Zetter, R. Ferguson, D.K. and Mohr, B.A.R. (2007) Discriminating fossil evergreen and deciduous Quercus pollen: A case study from the Miocene of eastern China. Rev. Palaeobot. Palynol. 145: 289-303.
Menitsky, G.L. (1971) Fagaceae. In: Rechinger, K.H. (ed.), Flora Iranica. Akademische Druck, Univ. of Verlagsanstalt Graze, Austria, 77: 1-20.
Meyer, C.A. (1831) Verzeichn. der pflanzen. Casp. Meer, St. Perersbourg. 44, p. 241.
Monoszon, M.K.H. (1962) Variations of the morphological characters of pollen from certain species of oak. Dokl. Akad. Nauk, S.S.S.R. 140, 165-168.
Muller, C.H. (1952) Ecological control of hybridization in Quercus: A factor in the mechanism of evolution. Evolution, 6: 147-161.
Nikolić, N.P. Merkulov, L.S. Krstić, B.D. and Orlović, S.S. (2003) A comparative analysis of stomata and leaf trichome characteristics in Quercus robur L. genotypes. Proc. Nat. Sci, Matica Srpska Novi. Sad. 105: 51-59.
Parsa, A. (1949) Flore de L`IRAN: Fagaceae. Imprinerie Mazaheri Tehran, 4: 1319- 1332.
Penas Merino, A. Llamas, F. Perez Morales, C. and Acedo, C. (1994) Aportaciones al Conocimiento del Genero Quercus en la Cordillera Cantabrica. I, Tricomas Foliares de las Especies Caducifolias. Lagascalia. 17: 311-324.
Punt, W. Blackmore, S. Nilsson, S. and Le Thomas, A., 1994. Glossary of pollen and spore terminology. LPP Contributions Series, vol. 1. LPP Foundation, Utrecht, The Netherlands.
Sabeti, H. (1994) Forests, trees and shrubs of Iran, Univ. of Yazd Publication, Iran, 876 p.
Safou, O. and Saint-Martin, M. (1989) Leaf trichomes of some perimediterranean Quercus species. Bull. Soc. Bot. France. 136: 291-304. S
careli-Santos, C. Herrera-Arroyo, M.L. Sanchez-Mondragon, M.L. GonzalezRodriguez, A. Bacon, J. and Oyama, K. (2007) Comparative analysis of micromorphological characters in two distantly related Mexican oaks, Q. conzattii and Q. eduardii (Fagaceae) and their hybrids. Brittonia, 59: 37-48.
Schwarz, O. (1935) Einige neue Eichen des Mediterrangebiets und Vorderasiens, Notizblatt des Königl. botanischen Gartens und Museums zu Berlin, Bd. 12, Nr. 114, pp. 461-469.
Smit, A. (1973) A scanning electron microscopical study of the pollen morphology in the genus Quercus. Acta Bot. Neerl. 22: 655-665.
Soepadmo, E. (1972) Fagaceae. Fl. Males, I, 7: 265-403.
Solomon, A.M. (1983a) Pollen morphology and plant taxonomy of white oaks in eastern North America. Amer. J. Bot. 70: 481-494.
Solomon, A.M. (1983b) Pollen morphology and plant taxonomy of red oaks in eastern North America. Amer. J. Bot. 70: 495-507.
Thamson, P.M. and Mohlenbrock, R.H. (1979) Foliar trichomes of Quercus subgenus Quercus in the eastern united states. J. Arnold Arbor. 60: 350-366.
Uzunova, K. and Palamarev, E. (1985) The foliar epidermis studies of Fagaceae Dumort. from the Balkan Peninsula. II. Quercus [Subgenera Sclerophyllodrys Schwarz and Cerris (Spach) Oersted]. Fitologia. 29: 3-20. U
zunova, K. and Palamarev, E. (1992a) Study of the leaf epidermis of the Balkan representatives of the Fagaceae Dumort. III. Quercus L. [Subgenus Quercus, sect. Roburoides (Schwarz) Schwarz and Dascia Kotschy]. Fitologia. 42: 22-48.
Uzunova, K. and Palamarev, E. (1992b) The Foliar epidermis studies of Fagaceae Dumort. from the Balkan Peninsula. IV. Quercus L. (Subgenus Quercus, sect. Robur Reichend.). Fitologia. 43: 3-30.
Uzunova, K. and Palamarev, E. (1993) An investigation of the leaf epidermis of the European (non-Balkan) species of the genus Quercus. Fitologia. 45: 3-15.
Uzunova, K. Palamarev, E. and Ehrendorfer, F. (1997) Anatomical changes and evolutionary trends in the foliar epidermis of extant and fossil Euro-Mediterranean oaks (Fagaceae). Pl. Syst. Evol. 204: 141-159.
Wang, P.L. and Chang, K.T. (1988) Pollen morphology of Cyclobalanopsis and its relation to Quercus. Acta Phytotax. Sin. 26: 282-289.
Zheng, Z.H. Wang, P.L. and Pu, F.D. (1999) A comparative study on pollen exine ultrastructure of Nothofagus and the other genera of Fagaceae. Acta Phytotax. Sin. 37: 253-258.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Caspian Sea level fluctuation and Determination of Setback Line1992101070ENM.Saeed SabaeeDept. of Environmental Sciences, Natural Resources Faculty, University of Tehran, Karaj, Iran.A.DanehkarDept. of Environmental Sciences, Natural Resources Faculty, University of Tehran, Karaj, Iran.A.A.DarvishsefatDept. of Forestry, Natural Resources Faculty, University of Tehran, Karaj, Iran.A.GhanghermehCaspian Sea National Research. Khazar square, Sari, Iran.O.AbdiDept. of Forestry, Natural Resources Faculty, University of Gorgan, Iran.H.AzarmdelDept. of Watershed Management, Natural Resources Faculty, University of Gorgan, Iran
* Corresponding author’s E-mail: sabaee_220@yahoo.comJournal Article19700101In the past 25 years, rising of the Caspian Sea level, part of a natural treat to the sea, has inundated and destroyed many buildings and arable lands and threatened many inhabitations in coastal areas. The main reason for these damages is that the law-setback has lost its efficiency and human activities have proceeded seaward. The goal of this study is to introduce a proper setback line for the southern coast of Caspian Sea on the basis of critical water elevation and the results of coastal vulnerability assessment to sea level rise. This setback contains vertical and horizontal buffers. The Coastal vulnerability index (CVI) method is used for coastal vulnerability assessment and is also used in the Geographic Information System. Five variables in two sub-indices were used in this method. The final map obtained from coastal vulnerability assessment divided the coastal zone into low, moderate, high and very high risk categories based on quartile ranges and visual inspection of data. A mean distance of very high risk category of vulnerability map from a second vertical buffer in each rural district was then proposed as a width of horizontal buffer in the same rural district.
<strong>REFERENCES </strong>
Arulraj, M., Pandian, P., Ramachandran, S. (2006). Vulnerability mapping and resettlement for Baratang Island, Andaman, India. Map India (see also http://www.gisdevelopment.net/pro ceeding).
City of Boulder Planning and Development Services (2007). Wetlands and Stream Buffers: A Review of the Science and Regulatory Approaches to Protection.
Eghtedari, omid (1997). Coastal zone area preluding of differences. Publiahed by: UNESCO & Iran Wild life & Natural Museum
Ferreira, O., Gracia, T., Rui, A., Matias., J, Taborda, J., Dias, A. (2006). An Integrated Method for Determination of Set-back lines for Coastal erosion hazards on Sandy shores. Continental shelf research 26(2006) 1030-1044 (see also http://www.elsevier.com/locate/csr).
Gornitz, V. (1990). Vulnerability of the east coast, USA to future Sea level rise. Journal of Coastal research 1, Special Issue 9. Pages: 201-237.
Gornitz, V. M., Daniels, R. C., White, T. W., Birdwell, K. R. (1994). The Development of a Coastal Risk Assessment Database: Vulnerability to Sea-level rise in the U.S. Southest. Journal of Coastal research, Special Issue 12. Pages: 327-338.
Haines, P. E. (2005). Determining appropriate Setbacks for future Development around ICOLLS 14th NSW Coastal conference, Narooma. 12P. IMO. (2003). Integrated Coastal Zone Management Plan for Andaman Islands. Report submitted to Ministry of Environment and Forestry. New Delhi. 325 p.
Intergovernmental Panel on Climate change. (1990). Strategies for Adaptation to Sea level rise. Rijkswaterstaat.
Khozarev, A. N., Yablonskaya, E. A., (1994). The Caspian Sea the Hague, SPB Academic Publishing, 274 p.
Klaus, Arpe., Leroy, Suzanne A. G. (2007). The Caspian Sea level forced by atmospheric circulation as observed and modeled, Quaternary International 144-152.
Mansuri, Arsalan. (1995). Analysis of sea level fluctuation (Caspi economic report). Minister of Energy (Caspian Sea National Research Center) Press, p. 24-27.
McLaughlin, S., McKenna, J., Cooper, J. A. G. (2002). Socio-economic data in Coastal vulnerability Indices: Constraints and Opportunities. Journal of coastal research, Special Issue 36. Pages: 487-497.
Minister of Energy. (2002). Collection of Laws and Regulations of Water and Wastewater Engineering. Chapter 3. 194 P.
Mirasadi, Hamidreza. (1995). Integrated Co-ordinated Environment and Nature Management of the Caspian Sea drainage basin. 31 p.
Rodinov, S. N., (1994). Global and Regional Climate Interaction: The Caspian Sea Experience Water Science and Technology library, Kluwer Academic publisher, Dordrecht, 241 p.
Shamsi, Ali. (1994). Short term prediction of Caspian Sea level (transferred: Kligea, R. k.) situation of water source bulletin. NO. 15. P153-159.
Szlafstein, Claudio f. (2005). Climate change, Sea-level rise and Coastal Natural Hazards: A GIS-based Vulnerability Assessment, State of Para, Brazil. Human security and Climate Change an International Workshop Asker near Oslo. 31 p.
Thieler, E. Robert., Hammar-klose, Erika S. (1999). National assessment of Coastal vulnerability to Sea-level rise: preliminary results for the US Atlantic coast. US Department of the interior, US geology survey.
Witten, J.H. and Frank, E. (2000) Data mining: practical machine learning tools and techniques with Java implementations, Morgan Kaufman publishers, San Francisco. 369 p.
University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Feeding behavior of brown trout, Salmo trutta fario, during spawning season in four rivers of Lar National Park, Iran2232331071ENM.SalavatianInland Water Aquaculture Research Center, P.O.Box 66, Bandar Anzali, Iran.Z.GholievNational Academy of Sciences of Azerbaijan Republic, Faculty of Zoology, Azerbaijan Republic.A.AlievNational Academy of Sciences of Azerbaijan Republic, Faculty of Zoology, Azerbaijan Republic.K.Abbasinland Water Aquaculture Research Center, P.O.Box 66, Bandar Anzali, Iran.
*Corresponding Author’s E-mail: Salavatian_2002@yahoo.comJournal Article19700101Brown trout, Salmo trutta fario, has a wide range of distribution in the north of Iran and in Karaj, Lighvanchai and Karun Rivers, but there is no report about its feeding behavior in some water resources including the Lar Natural Park. In order to study feeding behavior of this fish during spawning season, a survey was carried out in the rivers of Elarm, Aab-Sefid, Kamardasht and Delichayi in fall 2008. A total of 140 individuals of brown trout were caught by cast net and electro fishing. Mean weight and length of the samples were 130?79.5 g and 216.9?39 mm, respectively. The age of fish was 2 to 6 years and mean age was 3.02?1.3. The mean relative gut length (RLG) of samples was 0.86?1. It was found that brown trout fed on various preys (32 animal groups), that Chironomidae (88.6%), Simulidae (60%), Baetidae (51.4%) and Tipulidae (50%) have had the most frequency in the gut of brown trout. The proportion of food consumed by trout was Diptera 91.5% (Chironomidae pupa and larvae 85.8%), Coleoptera 6.4% and others 2.1%. Cannibalism was seen scarcely. In conclusion, brown trout consumes a wide range of food items in its spawning season. Therefore, it can be classified as euryphagous and carnivaorous.
<strong>REFERENCES </strong>
Abassi, K., Sayadrahim, M., Jafarzadeh, S., and Darvishzad, R., 2004. Some biological characteristics of brown trout (Salmo trutta fario) in west of Gilan province rivers, southern Caspian Sea. Inland Water Aquaculture Research Center, Bandar Anzali, Iran, 68 p.
Abdoli, A., 1999. Inland water fishes of Iran. Nature and Wild life Museum of Iran, Tehran, 377 p.
Abdollahpoor, H., Salavatian, S. M. and Abbasi, K, 2011 a. Investigation on feeding habit of Salmo trutta fario in Hevigh River (Guilan Province). Second national conference on fisheries. Science and aquatic Organisms. 10-12 May. Lahijan.Iran. live food part, pp. 99-108.
Abdollahpoor, H., Abbasi , K and Salavatian, S. M., 2011 b. Investigation on diet preference of Salmo trutta fario in Shafarud River (Guilan Province). Second national conference on fisheries. Science and aquatic Organisms. 10-12 May. Lahijan.Iran. live food part, p. 454-464.
Alp, A.,C. and Buyukcapar,H.M.2005. Age, growth and diet composition of the resident brown trout, Salmo trutta macrostigma Dumeril 1858, in firniz stream of the River ceyhan. Turkey.Turk.J.Vet.Anim.Sci.29:285-295.
Alanara, A., Brannas, E.,1997.Diurnal and nocturnal feeding activity in Arctic char (Salvelinus alpines) and rain bow trout (Oncorhynchus mykiss).Can.J.Fish. Aquat. Sci.54,2894-2900.
Afrayi, M., Fazli, H. and Moslemi, M., 2000. Some biological characteristics of brown trout (Salmo trutta fario) In Tonekabon river, Southern Caspian Sea. Iranian Journal of Fisheries Sciences, 9: 21- 34.
Araghi, A., 1996. Feeding behavior of brown trout (Salmo trutta fario) In Noor river, Southern Caspian Sea. Tehran University, 95 p.
Armantrout, N. B. 1980. The freshwater fishes of Iran.PhD Thesis. Oregon Statein University, Corvallis.oregon. XX, 472 P.
Banagar, G. R., Hassanzadeh Kiabi, B., Homayoonnezhad, I. , Piri, I. and Amirian, P. 2008. Biodiversity of Fish Species in Haraz River (An Ecological Approach). World Applied Sciences Journal, 5: 05-11.
Berg, L. S., 1948. Freshwater fishes of USSR and adjacent countries. Israel Program for Scientific Translation, Jerusalem, Vol.1. 496 p.
Biswas, S. P., 1993. Manual methods in fish biology. South Asian Publishers Pvt. Ltd, New Delhi, India, 157 p.
Bridcut, E. E., Giller,P.S., 1993. Diet variability in relation to season and habitat utilization in brown trout (salmo trutta L.) in a southern Irish stream.In Gibson,R.J.,Cutting,R.E (Eds.),production of Juvenile Atlantic salmon salmo salar in natural waters.Can.Spec.publ.Fish. Aquat.Sci., 118, pp. 17-24.
Coad, C. B., 1979. Provisional annotated checklist of freshwater fishes of Iran. Bombay, Nat. Hist. Sec, 76: 86-103.
Coad, B.W. 2011. The freshwater fishes of Iran. Assessed from personal web site, www.Briancoad.com. April 7.
Crespin De Billy, V.D E, B. Dumont, T.Labarrigue, P.Baran and B.Statzner, 2002. Invertebrate accessibility and vuinerability in the analysis of brown trut (Salmo trutta L.) summer habitat suitability. River Res. Appl.18:533-553.
Debljak, L., 1986. The nutrition of brown trout (Salmo fario) in Bager reservoir and Lepenica Stream. J. Ichthyos., 3: 1-7.
Derzhavin, J. V., 1934. Freshwater fishes of the southern shore of the caspian sea,Nauk SSSR, Sektor Zoologii, Baku 7:91-126 (In Russian).
Abstract to English Emadi, H., 1988. Guide to propagation of brown trout and Salmon fishes. Abzyan Publishing, Tehran, 89 p.
Elmi, A. M., 2003. Comprehensive studies of Lar national park. Environment Protection Organization, Tehran, 53 p.
Elliot, J. M., 1967. The food of trout (Salmo trutta) in a Dartmoor Stream. Journal of Applied Ecology, 4: 60-71.
Fakharzadeh, M., Emmami, H. M. and Ahmadinia, M. R., 2008. Brown trout diet in Karaj River. Azad University, Tehran, 8 p.
Fausch, K.D., Nakano, S., Kitano, S. .1997. Experimentally induced foraging mode shift by sympatric charrs in a Japanese mountain stream. Behav. Ecol; 8: 414- 420.
Ferriz, R. A., 1988. Feeding relationship of brown trout (Salmo fario) and rainbow trout (Salmo gairdnari) in the Ramos Mexia reservoir, Neuquen Province. Studies on Neotropical Fauna and Environment ,23: 123-131.
Fochetti, R.,I., Amici and R. Agano, 2003, Seasonal changes and selectivity in the diet of brown trout in the River Nera. (central Italy). J. Freshwat. Ecol., 18: 437-444.
Fochetti, R., Argano, R. and Tierno, M., 2008. Feeding ecology of various age classes of brown trout in Nera River, Central Italy.Belg. I. Zool., 138: 128-131.
Froese, R. and D. Pauly. Editors. 2011. Some data on salmo trutta trutta and S. trutta fario. FishBase. World Wide Web electronic publication. www.fishbase.org. Version (05/2011).
Frost, W. E., Brown, M. E., 1967. The trout Collins, St. james place, London, p. 286.
Ghane, A., 2008. Qualitative classification of rivers in Iranian coast of Caspian Sea in Gilan province, using population structure of macro -zoo benthic. Inland Water Aquaculture Research Center, Bandar Anzali, 10 p.
Gholief, Z. M. 2005. Trout (Salmo fario Linnae) of Azerbaijan (Morphomerology, Ecology and Protection). Azerbaijan sciences Academy. Baku. 112 p.
Grimas, U., 1963. Reflection on the availability and utilization degree of bottom animals of fish food. Zool. Biidr. Upps., 35: 497-503.
Heggenes. J., Krog, O.M.W., Lindas,O.R.,Dokk,J .G., Bremnes,T., 1993. Homeostatic behavioural responses in a changing environment: brown trout (salmo trutta) become nocturnal during winter.J.Anim.Ecol. 62: 295-308.
Houlihan, D., Boujard, T., Joblin, M. 2002. Food take in fish. Jobling, Malcolm, Coves, Denis., Techniques for Measuring feed intake. pp. 48-77.
Hunt, P. C. and Jones, J. W., 1972. The food of brown trout in Liyn Alew, Anglesey, North Wales. J. Fish. Bio., 4: 333-352.
Jafari, E., 1995. Iranian rivers Atlas. Geography and Cartography Organization, Tehran, 546 p.
Johnsen, B.O., 1978. Seasonal variation in the diet of brown trout (Salmo trutta L.) in Norwegian Mountain Lake compared with variation in the plankton and bottom fauna. Astarte, 11: 37-43.
Jonsson, B., 1989. Life history and habitat use of Norwegian brown trout (Salmo trutta). Freshw. Biol. 21: 71-86.
Kasimov, A.Q., 2000. Macrobentoz. Method monitoring (Diptera chapter). Kaspiyskom more. Baku, pp. 35-41.
Kazancheev, E.N., 1981. Caspian Sea and its watershed fishes (In Russian). Translated to Persian by: Shariati, A. 2003. Naghshe Mehr Publishing, Tehran. 224 p.
Kheyrandish, A., Abdoli, A., Mostafavi, H., Niksirat, H., Naderi, M. and Vatandoost, S. 2010. Age and growth of brown trout (Salmo trutta fario) in the six rivers of Southern part of Caspian Sea. American Journal of Animals and Veterinary Sciences, 5: 8-12.
Kiabi,B., Abdoli,A. & Naderi, M., 1999. Status of the fish fauna the south Caspian basin. J. of the Zoology in the Middle East, 18: 57-65.
Maitland, P.S., 1965. The feeding relationship of salmon, minnows, stone loach and three spined stickle-backs in the river Endrick, Scotland. Anim. Ecol., 69-71.
McLaughlin, R.L., Ferguson, M.M., Noakes, D.L.G. 1999: Adaptive peaks and alternative foraging tactics in brook charr: evidence of short-term divergent selection for sitting and waiting and actively searching. Behav. Ecol. Sociobiol: 45:386-395.
Merritt, R.W., Commins, K.W. and Berg M.B.2008. An introduction to the aquatic insects of North America. Kendall/Hunt Publishing Company, Iowa, USA., 1003 p.
Moslemi, M. 1996. Food behavior of brown trout (Salmo trutta fario) in Tonekabon River. Tehran University, 88 p.
Nikolskii, G.N., 1954. Special ichthyology. Published for the National Science Foundation, Washington D.C. by Israel Program for Scientific Translation Jerusalem, 183 p.
Oscoz, D., Leunda, P.M., Compos, F., Escala, M.C. and Miranda, R., 2002. Diet of brown trout (Salmo trutta) from the river Erro (Navarra, North of Spain), Lionnetica, 24: 319-326.
Saadati, M.A.G., 1997. Taxonomy and distribution of freshwater fishes of Iran. Colorado State University, USA, 212 p.
Sagar, P.M. and G.J.Glova, 1995.Prey availability and diet of Juvenile brown trout (Salmo trutta) in relation to riparian willows (Salix spp.) in three New Zealand streams . New Z.J.Mar. Freshwat. Res. 29: 527-537.
Vatandoost, S., Abdoli, A. and Mostafavi, H. 2008. Determination of food preference of brown trout (Salmo trutta fario) in Ashkrood River. The first seminar of inland waters of Iran. Bushehr. 7-8 Dec. Iran, p. 9.
Vollestad, L.A. and Anderson R. 1985. Resources partitioning of various age group of brown trout (Salmo trutta) in littoral zone of lake Selura, Norway. Archive for Hydrobiology, 105: 177-185.
Vosooghi, G.R. and Mostajir, B. 2005. Freshwater fishes. Tehran University Publishing. 317 p.
Werner, E.E. and J.F. Gilliam, 1984: The ontogenetic niche and species interactions in size-structured populations. Annu.Rev.Ecol.syst. 15:393- 425.
Zar, J.H. 1984. Biostatistical analysis. Prentice Hall International Incorporation, Englewood Cliffs, New Jersy, 620 p.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Failure of PCR-RAPD technique to differentiate sex in Mahisefied (Rutilus frisii kutum) from the South Caspian Sea2352421072ENM.PourkazemiSturgeon International Research Institute, Rasht, Iran, P.O.Box: 41635-3464.S.RazikazemiPayam-e-Noor University, School of Science, Tehran Branch, P.O. Box: 19295-4697
*Corresponding author’s E-mail: pkazemi_m@yahoo.comJournal Article19700101In order to identify the sex marker in Mahisefied, Rutilus frisii kutum, samples from 5 male and 5 female fish were collected from the south Caspian Sea. Polymerase chain reaction random amplified polymorphic DNA (PCR-RAPD) was performed using 124 primer sets. All bands were numbered using 1 and 0 scores corresponding to the presence or absence of bands, respectively and data were analyzed using RAPDPLOT program. Results indicated that 44 sets of primers did not show any flanking site and produced no bands, while the remaining 80 produced sharp and visible bands on polyacrylamid gel. In total, 1600 bands were scored. However, none of the bands corresponded to either the male or female fish. According to the results it has been concluded that RAPD technique failed to detect sex and cannot be considered as a robust molecular tool for sex differentiation in the studied fish. The reason may be the absence of sex chromosomes in this species or that the genes corresponding to sex differentiation are spread on different autosomal chromosomes with interaction of some environmental factors.
<strong>REFERENCES</strong>
Abdolmaleki, Sh. and Ghani Nejad, D. (2007). Releasing Mahi Sefied Fry and Its Role in Reconstructing the Stock of this Fish in the Iranian Coasts of the Caspian Sea, Monthly Magazine of Aquatics, 8th year, pp. 8-14 (In Persian).
Allendorf, F.W ; Gellman, W.A. and Thorgaard, G.H. , 1994. Sex-linkage of two enzyme loci Oncorhynchus mykiss (rainbow trout). Heredity 72: 498- 507.
Azari Takami, Gh. (1984). Principles of Fish Breeding and Culture, Organization of Aquatics Breeding and Development, Deputy Aquatic Fisheries Publications, p. 152 (In Persian).
Bardakci, F., 2000. The use of random amplified polymorphic DNA (RAPD) markers in sex discrimination in Nile Tilapia, Oreochromis niloticus (Pisces: Cichlidae), Turk J Biol, pp. 169-175.
Baroiller J. F. and D'cotta, H., 2001. Environment and sex determination in farmed fish. Comp Biochem Physiol C Toxicol Pharmacol 130: 339-409.
Callejas, C. and Ochando, M.D., 2002. Phylogenetic relationships among Spanish Barbus Species(Pisces, Cyprinidae) shown by RAPD markers. Heredity 89: 36-43.
Callejas. C. and Ochando, M.D., 2001. Molecular identification (RAPD) of the eight species of the genus Barbus (Cyprinidae) in the lberian peninsula. Jornal of Fish Biology. Volume 59: 1589-1599.
Congiu, L.; Rossi, R. and Colom. G., 2002. Population analysis of the sand smelt Atherina boyeri (teleostei. Atherinidae), from Italian coastal lagoons by random amplified polymorphic DNA. Marine Ecology, 1, 229: 279-289.
Cui, J. Z.; Shen, X. Y.; Gong, Q. L.; Yang, G.P. and Gu, Q. Q., 2006. Identification of Sex markers by cDNA-AFLP in (Takifugu rubripes). Aquaculture, 25: 30-36.
Devlin, R. H. and Nagahama, Y., 2002. Sex determination and sex differentiation in fish: an overview of genetic, physiological, and environmental influences. Aquaculture 208, pp. 191- 364.
Ellegren, H., 2001. Hens, cocks and avian sex determination. A quest for genes on Zor W? Embo reports, 2: 192- 196.
Fernando, A. A. and Phang, V. P. E., 1989. Inheritance of the tuxedo and blond tuxedo color pattern phenotypes of the guppy, Poecilia reticulate. Proceeding of the Second Asian Fisheries Forum, Tokyo, Japan, the Second Asian Fisheries Forum, Tokyo, Japan, pp. 487- 490.
Froschauer, A., Kortin, C., Aoki, T. and Asakawa, S. , 2005. Construction and initial analysis of bacteria artificial chromosome (BAC) Cotigs from the sex determination region of the platyfish (Xiphophoorus maculatus). Gene, 295: 247-254.
Griffiths, R.; Orr, K.J., Adam, A. and Barber, I., 2000. DNA sex identification in the theree spined stickleback. J. Fish Biol., 57: 1331- 1334.
Horng, Y.M.; Wu, C., Wang, Y.C. and Huang, MC, 2006. A novel molecular genetic marker for gender determination of pigeons, Theriogenology 65: 1759 - 1768.
Itrurra, P., Medrano, J.F., Bagley, M., Lam, N., Vergara, N. and Marin, JC. , 1998. Identification of sex chromosome molecular, marker using RAPDs and fluorescent in situ hybridization in rainbow trout. Genetica, 101: 209- 213.
Iturra, P., Lam, N., Fuente, M., Vergara, N. and Medrano, J.F., 2001. Characterization of sex chromosomes in rainbow trout and coho salmon using Fluorescent In Situ Hybridization (FISH). Genetica 111, pp. 125 -131.
Jaillon, O., Aury, J.M., Petit, J. and Stange-thomann, N., 2004. Genome duplication in the teloset fish Tetradon nigroviridis reveals the early vertebrate proto- karyotype. Nature, 431: 946 -957.
Jian zhou, C.; Xue, Y. S.; Qing, L.G.; Guan Ping, and Y. Qin. Qun, G., 2006. Identification of sex markers by cDNA-AFLP in (Takifugu rubripes). Aquaculture, 257: 30-36.
Keyvanshoukouh, S; Pourkazemi M. and Kalbasi M.R. (2004). Investigating the Possibility of Determining the Sex of Huso huso Using the PCR-RAPD Method, Iranian Fisheries Scientific Magazine, No.1, 13th year, Spring 2004, pp. 149-162 (In Persian).
Kovacs, B., Egedi, S.; Bartfai, R. and Orban, L., 2001. Male-specific DNA markers from African catfish (Clarias gariepinus). Genetica, 110: 267-276.
Levin, I.; Crittenden, L.B. and Dodgson, J.B., 1993. Genetic map of the chicken. Z chromosome using random amplification polymorphic DNA. Genomics 16: 224-230.
Li, Y. ; Hill, J.A. ; Yue, G.H. ; Chen, F. and Orban, L., 2002. Extensive search does not identify genomic sex markers in Tetradon nigroviridis. Journal of Fish Biology. 61: 1314-1317.
MaGowan, C. and Davidson, W.S., 1998. The RAPD technique fails to detect a male-specific genetic marker in Atlantic salmon. Journal of Fish Biology, 53: 1134- 1136.
Martinez, E. A.; Destombe, C.; Quillet, M. C. and Valero, M., 1999. Identification of random amplified polymorphic DNA (RAPD) markers highly linked to sex determination in the red alga Gracilaria gracilis. Molecular Ecology, 8: 1533-1538.
Matsuda, M.; Matsuda, C.; Hamaguchi, S. and Sakaizumi, M., 1998. Identification of the sex chromosomes of the medaka, Oryzias latipes, by fluorescence in situ hybridization. Cytogenet. Cell Genet. 82: 257- 262.
McQuown, E.; Sloss, B. L.; Sheehan, R. J. and May, B., 2000. Microsatellite analysis of genetic variation in Sturgeon (Acipenseridae): new primer sequence for Scaphirhychus and Acipenser. Trans. Am. Fish. Soc. 129: 1380-1388.
Penalva, L. and Sanchez, L., 2003. RNA binding protein sex- lethal (sxl) and control of Drosophila sex determination and dosage compensation. Microbial Mol. Biol Rev, 67, pp. 343-359.
Pourkazemi, M. , 1996. Molecular and biochemical genetic analysis of sturgeon stocks from the South Caspian Sea. PhD Dissertation, University of Wales, Swansea. 260 p.
Ravelo, C.; Magarinos, S. and Toranzo, A.E., 2002. Molecular fingerprinting of fish pathogenic Lactoccus garvieae strains by random amplified polymorphic DNA analysis. Jornal of Clinical Microbiology, pp. 751-756.
Razavi Sayyad B.A. (1990). Evaluation and Management of Economic Fish Stock of the Caspian Sea, Fishery Research organization, Guilan Province, Bandar Anzali, p. 86 (In Persian).
Roest Crollius, H. and Weissebach, J., 2005. Fish genomic and biology. Genom Res 15, pp. 1675-1682.
Schartl, M., 2004. Sex chromosome evolution in non mammalian vertebrates. Curr Opin Genet Dev. 14: 634-641.
Sun, X. Liang, L., 2003. A genetic linkage map of common carp (Cyprinus carpio L.) and mapping of a locus associated with cold tolerance. Aquaculture, 238: 165-172.
Tave, D. 1993. Genetics for fish hatchery managers 2<sup>nd</sup> edn. Van Nostrand Reinhold, New York, 415 p.
Wardell, B.; Sudweeks, J. D.; Meeker, N. D.; Estes, S. S.; Woodward, S.R.; and Teuscher, C., 1993. The identification of Y chromosome-linked markers with arbitrary primers. Nucleic Acids Reserch, 18: 7213-7218.
Welsh, J. and McClelland, M., (1990). Fingerinting genomes using PCR with arbitrary primers. Nucleic Acids Research, 18: 7213-7218.
Williams, J. G. K., Kabelik, A.R., Liva, K. J., Rafalski, J.A., and Tingey, V. , (1990). DNA polymorphism Amplified by arbitrary primers are useful as genetic markers. Nucleic Acid Research, 18: 6531-6535.
Würtz, S, Gaillard, S, Barbisan, F, Carle, S, Congiu, L., Forlani, A, Aubert, J, Kirschbaum, F, Tosi, E, Zane, L. and Grillasca, J (2006). Extensive screening of sturgeon genomes by random screening techniques revealed no sex-specific marker. Aquaculture, 258: 685-688.
University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Isotherm and Kinetic Studies on Adsorption of Pb, Zn and Cu by Kaolinite2432551073ENAl.EtO. Rafieyan*1, A. A. Darvishsefat2, S. Babaii1, A. Mataji1Sh.Shahmohammadi-Kalalagh0000Journal Article19700101The feasibility of kaolinite used as a low-cost adsorbent for the removal of Pb(II), Zn(II) and Cu(II) from aqueous solutions was investigated. During the removal process, batch technique was used, and the effects of heavy metal concentration and contact time on adsorption efficiency at pH of 4.5, under a constant temperature of 20?1 ?C were studied. The experimental results were analyzed using four adsorption isotherm models; Freundlich, Langmuir, Temkin and Redlich-Peterson. Evaluating the correlation coefficients showed that the Redlich-Peterson isotherm described the data appropriable than others. The adsorption capacities (qm) from the Langmuir isotherm for Pb(II), Zn(II) and Cu(II) are found as 7.75 mg/g, 4.95 mg/g and 4.42 mg/g respectively. The effectiveness of kaolinite in the sorption of the three metals from aqueous system was Pb(II) > Zn(II) > Cu(II). Kinetic studies showed that a pseudo-second order model was more suitable than the pseudo first order model. It is concluded that kaolinite can be used as an effective adsorbent for removing Pb(II), Zn(II) and Cu(II) from aqueous solutions.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401Parasitic worms of Acipenser stellatus, A. gueldenstaedtii, A. nudiventris and Huso huso (Chondrostei: Acipenseridae) from the southwest shores of the Caspian Sea2572661074ENM. R.Noei00Journal Article19700101Sturgeons are the most important fish in the Caspian Sea, but there are only a few reports on their parasite communities in the southern part of this sea. In this study, a total of 93 individuals of four sturgeon species, namely Acipenser stellatus (n= 60), A.gueldenstaedtii (n = 12), A. nudiventris (n = 9) and Huso huso (n = 12), were caught in 2 geographical regions from the southwest of the Caspian Sea (Guilan Province, Iran) from March 2010 thtough May 2011. After recording biometric characteristics, standard necropsy and parasitological methods were used to identify parasites. Standard statistical computation (mean intensity, standard deviation, range, prevalence, abundance and dominance) were carried out for the overall samples and for samples grouped by season, geographical location, sex, length and weight. The differences between groups were determined by Kruskal Wallis test and Man Whitney U test (p< 0.05).<br /> Five worm species including 2 nematodes [Cucullanus sphaerocephalus and Eustrongylides excisus (L.)], 1 cestode (Bothrimonus fallax), 1 acanthocephalans (Leptorhynchoides plagicephalus) and 1 digenean trematode (Skrjabinopsolus semiarmatus) were found in A.stellatus, A. gueldenstaedtii, A. nudiventris and H. huso.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401An investigation on the climate and ecology of the southeast region of the Caspian Sea in the first millennium AD based on archaeological data2672781075ENK.SabetraftarE. Taghvaye Salimi *1,2, K. Soleimani1, M. Habibnejad Roshan1, K. Sabetraftar3,4
1- Department of Watershed Management, Faculty of Natural Resources, University of Mazandaran, Sari, Iran.
2- Department of Forestry, Faculty of Natural Resources, University of Guilan, Somehsara, Iran.
3- Department of Environmental Science , Faculty of Natural Resources, University of Guilan, Somehsara, Iran.
4- School of Resources, Environment & Society(SRES), The Australian National University, Canberra, ACT 0200, Australia
*Corresponding author?s E-mail: edristaghvaei@yahoo.comSh.Shafii*1, 2, K. Sabetraftar3, 4,Journal Article19700101The vegetation covering of a region has a direct correlation with climate. So if data is available for vegetation cover, the second variable (climate) can be easily predicted and in reverse. The dominant species in a region are indication of its climatic conditions and vice versa. Accordingly, this is of significance in the science of historical botany. Fortunately, from the first millennium AD, and during the rule of Parthian and Sassanian era, documents and archeological evidence is considerable indicating climatic and habitat conditions as well as biodiversity in the region. However, this evidence has not been used for biological sciences and ecology. Through the discovery of 2746 clay tablet writings in the ancient area of Nisa which were the actual delivery receipts of stock to a storage house, researchers are now able to study data regarding socio-economic conditions that prevailed in the Partian society and agricultural activities which took place in northern Khorasan during the first and second century BC. Moreover, Rhyton (golden and silver vessels) discovered in Sassanid era, in the first millennium AD were totally important based on animal geography. After identifying the dominant agricultural species contained on the clay tablets and the mammalian single indicator that were depicted on Rhyton, our investigation team was able to determine the appropriate climatic conditions and individual habitat circumstances for these species. Consequently, this evidence accomplished that there is no noticeable change based on the development of the dominant species of fauna and flora in the southeast of the Caspian Sea in the first millennium AD.University of GuilanCaspian Journal of Environmental Sciences1735-30339220110401First report on Freshwater crab species (Potamon bilobatum) in the altitudes of Guilan (Lakan area)2792831076ENA.NasrollahzadehDep. of Fisheries Science, Faculty of Natural Resources, University of Guilan, Somehsara, Iran.
* Corresponding author?s E-mail: nasrolla2003@yahoo.comAl.EtO. Rafieyan*1, A. A. Darvishsefat2, S. Babaii1, A. Mataji1Journal Article19700101Guilan province is located in south and south-west of the Caspian Sea. Guilan is one of the richest and the most humid region in the country due to suitable climate, ample rainfall and many water sources (springs, rivers, creeks,..),. Despite the prevailing favorable conditions, limnological studies, especially in the mountainous regions of this province are limited. A limnological study was conducted in the Lakan area from March to June in 2008. Macrobenthos were sampled from the freshwater stream that were mostly composed of freshwater crabs. The samples were transported to the Natural History Museum in Frankfurt, Germany, and the crab species was identified as Potamon bilobatum belonging to Family Potamidae. The physico-chemical characteristics of water and the study area have been recorded.