TITLE:
Study of Zooplankton Species Structure and Dominance in Anzali International Wetland
AUTHORS:
Delaram Golmarvi, Maryam Fallahi Kapourchali, Ali Mashinchian Moradi, Mohammadreza Fatemi, Rezvan Mousavi Nadoshan
KEYWORDS:
Zooplankton, Diversity, Dominance, Anzali International Wetland
JOURNAL NAME:
Open Journal of Marine Science,
Vol.8 No.2,
February
12,
2018
ABSTRACT: Anzali International wetland is one of the most important places for various
organisms such as fishes. Zooplankton are the first consumers in the ecosystem,
and they are perfect food for the larvae of fishes. The present study conducted
monthly during January 2012 to December 2013 in 9 different stations
with zooplankton population and chemical characteristics analysis such as
water temperature ranged from 10°C - 22°C, pH determined alkaline nature
of the wetland ranged from 7.05 to 9.47, dissolved oxygen was recorded in the
range of 3.36 mg/l to 10.51 mg/l, nitrate was ranged between 0.48 - 4.36 mg/l,
total phosphates was between 0.15 - 0.67 mg/l, salinity was recorded between
220 - 692 mg/l, TDS was determined between 246 - 1971 mg/l, BOD
and COD was also recorded 2 - 36 mg/l and 4 - 74 mg/l respectively. Total 61
zooplankton species were found belonging to 4 groups: Protozoa (22 sp.), Rotatoria
(29 sp.), Copepoda (5 sp.) and Cladocera (4 sp.). Rotatoria were found
dominating other groups of zooplankton. Kruskal Wallis test showed that
there was significant difference between density of zooplankton in different
stations, months and seasons (P ≤ 0.05) and significant differences were found
between densities of different zooplankton phylum (P ≤ 0.05). The water body
is continuously receiving domestic discharge leading to large amount of nutrient
inputs and high amount of phosphate and nitrate in the water body indicates
that water is eutrophic in nature.