Publication Date:
2021-05-19
Description:
Anzali wetland is one of the most important places for spawning fishes 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 6 stations of different areas of the Anzali wetland during March 2011 to February 2012.
Sampling was done by tube (PVC) and passing through of 30 micron planktonic net. The samples were
identified and counted by invert microscope. According to the results were identified 60 Genus and 6 phylum
(11, 31, 10, 2, 1, 1, 1, 2 genus of phylum Protozoa, Rotatoria, Arthropoda, Gastrotricha, Mollusca, Tardigrada,
Nematoda, Porifera, Annelida) respectively. The results showed that the maximum annual average density of
zooplankton was observed with 2497 number per litre in Karkan station and the population was more in the
summer than in other seasons. Phylum of Rotatoria,, protozoa and superclass Copepoda formed 48, 45
and 6percent of the density espectively. According to the results the populationof zooplankton did not change
much compared to past studies, excluding Protozoa but the diversity of all zooplankton groupe are declined very
much. According to the statistical analysis Kruskal Wallis are not significant differences between density of
zooplankton in different stations, months and seasons (p 〉 0.05),but significant differences were found
in different phylum together (p 〈 0.05).
Description:
Iranian Fisheries Science Research Institute
Description:
Published
Keywords:
Zooplankton
;
Density
;
Diversity
Repository Name:
AquaDocs
Type:
Report
,
Refereed
Format:
48pp.
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