Diversity and Abundance of Zooplankton phylums in the Anzali Wetland

Document Type : Ecology

Authors

Inland Waters Aquaculture Research Center, Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bandar-e Anzali, Iran

Abstract

Anzali wetland is one of the most important  ecosystem for fishes spawning  and zooplankton groups are the first consumer in this ecosystem .They are the  perfect  food  for the larvae of fishes. Zooplankton status was evaluated in 10 stations of different areas of the Anzali wet land during March 2014 to February2015.  Sampling was done by tube (PVC) and passing through of 30 micron planktonic net. The samples were identified and counted by invert microscope.  A total of 72 Genus of phylum Actinopoda, Rhizopoda, Ciliophora,, Rotatoria, Arthropoda, Gastrotricha, Mollusca, Tardigrada, Nematoda, Porifera, Annelida) were identified. The results  showed that the maximum  and Minimum annual average density of zooplankton  was observed with 9667± 12383 and 312 ± 1539 ind.lit-1 in Komeh Sheijan station and West Wetlands Center  station Respectively.The population was more in the summer than in other season phylum of Rotatoria, Rhizopoda, Ciliophora and superclass Copepoda formed 59, 8,30 and 3 percent of the density respectively. According to the results the populationof zooplankton is ncreased compared to past studies. According to the statistical analysis Kruskal Wallis  there were not significant differences between   density of zooplankton in different stations, months and seasons (p > 0.05), but  significant differences were found in between different phylum  (p < 0.05). Overall, the results showed that the Anzali wetland has Eutroph condition. 

Keywords

References

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Journal of Animal Environment
Volume 10, Issue 1
April 2018
Pages 321-328

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