DIVERSITY, DENSITY, AND DISTRIBUTION OF ZOOPLANKTON IN THE SOUTH OF THE CASPIAN SEA IN WINTER 1384 COMPARED WITH THE PREVIOUS YEARS

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ROUSHAN TABARI M.; NEJAT KHAH P.; HOSSEINI SEYED ABAS; KHODA PARAST N.B.; ROSTAMIAN M.T.

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Journal: JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY Year:2008 | Volume:9 | Issue:4 (35) Page(s): 129-137

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Title

DIVERSITY, DENSITY, AND DISTRIBUTION OF ZOOPLANKTON IN THE SOUTH OF THE CASPIAN SEA IN WINTER 1384 COMPARED WITH THE PREVIOUS YEARS

Author(s)

Keywords

CASPIAN SEAQ2

ZOOPLANKTONQ2

DEPTHQ3

DIVERSITYQ2

DISTRIBUTIONQ2

DENSITYQ2

Abstract

This survey was performed in 34 stations in southern part of the CASPIAN SEA in the winter of 1384. Eight species were observed such as Acartia clausi, A. tonsa, Arcella sp, Foraminiphera sp, Asplanchna sp, Brachionus calyciflorus, Cirripedia, and Lamelibrenchiata larvae.Sampling occurred in the different DEPTHs (5, 10, 20, 50, and 100m). The maximum DENSITY and biomass of ZOOPLANKTON exist in DEPTHs of 5 and 10m where the figures for the DENSITY were 35215 and 5230 ind. /m3 and for the biomass were 213/813 and 34/301 mg/m3, respectively. The frequency of ZOOPLANKTON in 5m DEPTH was 6.7 times more than that in 10 m DEPTH, and 7.5 times more than the other DEPTHs. Acartia naupli were 3.3 and 2.1 times more than that of Acartia in DEPTHs of 5 and 10m, respectively. Maximum DENSITY (93094 ind. /m3) was observed in station 21 was in 5m DEPTH where copepda constituted 86.1% of ZOOPLANKTON population.In 1374 and 1375, 26 and 23 ZOOPLANKTON species were identified, respectively, with the highest DIVERSITY belonging to cladocera and copepoda. In 1378, 39 species were observed and protozoa, Rotatoria, and cladocera had a higher variety than the previous years. ZOOPLANKTON variation was decreased to half and there were 14 and 8 species in 1383 and 1384, respectively. The biomass of ZOOPLANKTON decreased from 1374 to 1383, and increased in 1384 so that the biomass was 4.5 times more than that in 1383.

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DISTRIBUTION OF ZOOPLANKTONS IN THE SOUTHERN CASPIAN SEA

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APA: Copy

ROUSHAN TABARI, M., NEJAT KHAH, P., HOSSEINI, SEYED ABAS, KHODA PARAST, N.B., & ROSTAMIAN, M.T.. (2008). DIVERSITY, DENSITY, AND DISTRIBUTION OF ZOOPLANKTON IN THE SOUTH OF THE CASPIAN SEA IN WINTER 1384 COMPARED WITH THE PREVIOUS YEARS. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, 9(4 (35)), 129-137. SID. https://sid.ir/paper/87548/en

Vancouver: Copy

ROUSHAN TABARI M., NEJAT KHAH P., HOSSEINI SEYED ABAS, KHODA PARAST N.B., ROSTAMIAN M.T.. DIVERSITY, DENSITY, AND DISTRIBUTION OF ZOOPLANKTON IN THE SOUTH OF THE CASPIAN SEA IN WINTER 1384 COMPARED WITH THE PREVIOUS YEARS. JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY[Internet]. 2008;9(4 (35)):129-137. Available from: https://sid.ir/paper/87548/en

IEEE: Copy

M. ROUSHAN TABARI, P. NEJAT KHAH, SEYED ABAS HOSSEINI, N.B. KHODA PARAST, and M.T. ROSTAMIAN, “DIVERSITY, DENSITY, AND DISTRIBUTION OF ZOOPLANKTON IN THE SOUTH OF THE CASPIAN SEA IN WINTER 1384 COMPARED WITH THE PREVIOUS YEARS,” JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, vol. 9, no. 4 (35), pp. 129–137, 2008, [Online]. Available: https://sid.ir/paper/87548/en

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