Distribution and abundance of high aquatic plants in the Gorganroud River, the Caspian Sea basin, Iran

Authors

1 0

2 1* , S. A. Hosseini2 , S. A. Hosseini3

Abstract

The distribution and abundance of high aquatic plants in the Gorganroud River was examined at five stations in four seasons (20 samples) over one year period during 2009-2010. We identified 21 species of aquatic plants from 21 genera, belonging to 9 families. These species were determined as 3 halophytic species (14.2%) and 18 high aquatic plants (85.7%).The highest species diversity was observed at Khajenafas, Aq qala and Chargoli stations(17, 13 and 11 species) respectively, The highest biomass of high aquatic plants were recorded in summer (for Inspection and Chargoli stations 11.5 and 10.1 g/m2, respectively) and autumn (for the station of Inspection was 8.5 g/m2 dry weight). The most dominant species were different in the investigated stations. At station 1 species Tamarix kotschyi, at station 2 species Juncus acutiflorus, at station 3 species Hordeum murinum hudson, at station 4 species Salicornia europaea L and at station 5 Juncus acutiflorus species were dominated.

Keywords


Baattrup-Pedersen, A., Riis, T. (1999). Macrophytediversity and composition in relation to substratum characteristics in regulated and unregulated Danish streams. Freshwater Biology42(2): 375-385.Boyd, C. E. (1970). Vascular aquatic plants for mineral nutrient removal from polluted waters. Economic Botany, 24, 95103.Duarte, C. M., Kalff, J., and Peters, R. H. (1986). Patterns in biomass and cover of aquatic macrophytes in lakes. Canadian Journal of Fisheries and Aquatic Sciences. 43: 1900-1908.Gupta G.C. 1982. Use of water hyacinth in wastewater. Treatment. International Journal of Environmental Health Research43 (2) 80-8.Holmes N.T.H., and Newbold, C. (1984). River Plant Communities -Reflectors of water and substrate chemistry. Focus on Nature Conservation series9.Horppila J., and Nurminen, L. 2001. The effect of an emergent macrophyte(Typha angustifolia) on sediment resuspension in a shallow north temperate lake. Freshwater Biology. 46: 1447-1455.James, W. F ., Barko, J. M. (1990). Macropyte influences on the zonation of sediment accretion and composition in a north-temperate lake. Arch. Hydrobiol. 20:129-142.Middelboe, A. L., Markager, S. (1997). Depth limits and minimum light requirements of fresh water macrophytes. Freshwater Biology37:553-568.Moss, B. (1990). Engineering and biological approaches to the restoration from eutrophication of shallow lakes in which aquatic plant communities are important component. Hydrobiologia200/201:367-379.Patrick Center for Environmental Research, (1998). Impact of aquatic vegetation on water quality of the Delaware River estuary., The Academy of Natural Sciences., Final Report 98-5F,.pp:25-26Sand-Jensen, K., and Borum, J. (1991). Interaction among phytoplankton, periphyton and macrophytes in temperate freshwater and estuaries. Aquatic Botany, 41: 137-175