SPATIAL AND TEMPORAL DISTRIBUTION OF MULLETS IN IRANIAN WATERS OF THE CASPIAN SEA

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FAZLI H.; KOR D.; DARYANABARD GH.R.; TAVAKOLI M.

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Journal: NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES) Year:2014 | Volume:8 | Issue:2 (30) Page(s): 53-62

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Information Journal Paper

Title

SPATIAL AND TEMPORAL DISTRIBUTION OF MULLETS IN IRANIAN WATERS OF THE CASPIAN SEA

Author(s)

FAZLI H. | KOR D. | DARYANABARD GH.R. | TAVAKOLI M. | Issue Writer Certificate

Keywords

MULLETSQ1

DISTRIBUTIONQ2

DENSITYQ2

BOTTOM TRAWLQ2

CASPIAN SEAQ2

Abstract

The main objective of the present study was to determine spatial and temporal DISTRIBUTION of MULLETS by using BOTTOM TRAWL in depths 10-100 m in Iranian waters of the CASPIAN SEA, during 2008-2011. During 8 surveys the catch and CPUE (catch per unit effort) of MULLETS had a decrising trend. The total catch of MULLETS declined from 3064 kg in spring 2008 to 93 kg in winter 2011 and the average (±S.E.) of CPUE were 63.8 (±17.77) and 2.9 (±1.58) kg/0.5 hr-1, respectively. The spatial and temporal DISTRIBUTION showed that most of MULLETS concentrated in depth <20 m, in central and eastern Caspian in spring and the maximum CPUE was 152.8 (±73.26) kg/0.5 hr-1. In summer, the CPUE declined that the maximum was 10.0 (±2.74) kg/0.5 hr-1 in depths <20 m, in eastern coastal zone. In autumn, due to the migration of MULLETS to south Caspian, the CPUE increased sharply (the highest CPUE was 136.0±26.38 kg/0.5 hr-1 in eastern region). In winter, the concentration of MULLETS declined again which the maximum CPUE was 41.7 (±7.73) kg/0.5 hr-1 in depths <20 in eastern region. Acording to the present study, most of MULLETS concentrated in depths <20 m in all seasons. For wintering, MULLETS migrate to Iranian coastal zone during autumn and subsequently the commercial catches of the species increase.

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APA: Copy

FAZLI, H., KOR, D., DARYANABARD, GH.R., & TAVAKOLI, M.. (2014). SPATIAL AND TEMPORAL DISTRIBUTION OF MULLETS IN IRANIAN WATERS OF THE CASPIAN SEA. NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES), 8(2 (30)), 53-62. SID. https://sid.ir/paper/161768/en

Vancouver: Copy

FAZLI H., KOR D., DARYANABARD GH.R., TAVAKOLI M.. SPATIAL AND TEMPORAL DISTRIBUTION OF MULLETS IN IRANIAN WATERS OF THE CASPIAN SEA. NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES)[Internet]. 2014;8(2 (30)):53-62. Available from: https://sid.ir/paper/161768/en

IEEE: Copy

H. FAZLI, D. KOR, GH.R. DARYANABARD, and M. TAVAKOLI, “SPATIAL AND TEMPORAL DISTRIBUTION OF MULLETS IN IRANIAN WATERS OF THE CASPIAN SEA,” NEW TECHNOLOGIES IN AQUACULTURE DEVELOPMENT (JOURNAL OF FISHERIES), vol. 8, no. 2 (30), pp. 53–62, 2014, [Online]. Available: https://sid.ir/paper/161768/en

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