DISTRIBUTION PATTERN AND BIOMASS ESTIMATION OF BENTHIC INVERTEBRATES IN ARAS RESERVOR

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BAGHERI S.; ABD ALMALEKI SH.

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Journal: Iranian Scientific Fisheries Journal Year:2003 | Volume:11 | Issue:4 Page(s): 1-10

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Title

DISTRIBUTION PATTERN AND BIOMASS ESTIMATION OF BENTHIC INVERTEBRATES IN ARAS RESERVOR

Author(s)

BAGHERI S. | ABD ALMALEKI SH. | Issue Writer Certificate

Keywords

INVERTEBRATEQ3

BENTHOSQ3

ARAS RESERVOIRQ4

IRANQ3

Abstract

This study was carried out at monthly basis covering six sampling stations in ARAS RESERVOIR in 1995. The samples were collected by Ekman grab with 3 replicates. The results showed that Oligocheats were the dominant taxa in this reservoir which were served all year round and had the highest abundance and biomass.The chironomidae were the second dominant family. Gammaridae and Mysidae had the least abundance and biomass. Maximum biomass of Oligochaets was observed in spring with the average figure of 19.03g/m2 and minimum biomass was observed in winter with average biomass of 5.87 g/m2. Maximum and minimum amass of Chironomidae were recorded in summer and spring, of which their correspond average biomass were 1.52 and 0.06g/m2,respectively.The highest and Nest biomass of Mysidae family were observed in summer and spring with the average biomass of 0.46 and 0.00 g/m2,respectively. Gammaridae family observed only summer. The differences of biomass of these 3 families were significant based on uskal-walis nonparametric test (P<0.05).Maximum (26.06 g/m2) and minimum biomass (3.14 g/m2) of benthic organisms are observed in stations 4 and 5, respectively and no remarkable variation was observed in the percentage of total organic matter (TOM,) content during different seasons. Maximum and minimum average percentage of TOM were 6.66 % to 4.799% in spring and winter, respectively.Based on collected data and obtained results, it can be assumed that feeding of fishes, sediment composition, amount of TOM and water temperature were the most important factors affect on temporal and spatial variation in population and biomass of benthic organisms of ARAS RESERVOIR.

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APA: Copy

BAGHERI, S., & ABD ALMALEKI, SH.. (2003). DISTRIBUTION PATTERN AND BIOMASS ESTIMATION OF BENTHIC INVERTEBRATES IN ARAS RESERVOR. IRANIAN SCIENTIFIC FISHERIES JOURNAL, 11(4), 1-10. SID. https://sid.ir/paper/4377/en

Vancouver: Copy

BAGHERI S., ABD ALMALEKI SH.. DISTRIBUTION PATTERN AND BIOMASS ESTIMATION OF BENTHIC INVERTEBRATES IN ARAS RESERVOR. IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2003;11(4):1-10. Available from: https://sid.ir/paper/4377/en

IEEE: Copy

S. BAGHERI, and SH. ABD ALMALEKI, “DISTRIBUTION PATTERN AND BIOMASS ESTIMATION OF BENTHIC INVERTEBRATES IN ARAS RESERVOR,” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 11, no. 4, pp. 1–10, 2003, [Online]. Available: https://sid.ir/paper/4377/en

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