Changes in the condition factor and relative condition factor of Rutilus kutum in the eastern part of the Caspian Sea (Goharbaran)

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FAZLI HASSAN; DARYANABARD GHOLAMREZA; NADERI MAHDI; janbaz Aliasghar

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Journal: JOURNAL OF MARINE BIOLOGY Year:2019 | Volume:10 | Issue:40 Page(s): 15-24

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Title

Changes in the condition factor and relative condition factor of Rutilus kutum in the eastern part of the Caspian Sea (Goharbaran)

Author(s)

FAZLI HASSAN | DARYANABARD GHOLAMREZA | NADERI MAHDI | janbaz Aliasghar | Issue Writer Certificate

Keywords

KutumQ2

Condition FactorQ2

Relative Condition FactorQ1

Caspian SeaQ2

Abstract

The main objective of the present study was to investigate the changes in length, weight, Condition Factor (CF) and relative Condition Factor (Krel) of Rutilus Kutum in different seasons and depths in the eastern coasts of the Caspian Sea (Goharbaran region In this study, three fishing methods, including small mesh size beach seine, gillnet and commercial beach seine were used during January 2014 to July 2014. The results showed that the slope (b value) of the length-weight relation was 3. 0003 which was not significantly different from 3 methods (P>0. 05), indicating isometric growth. Small and large fish were caught in small mesh size beach seine and commercial beach seine, respectively. The average length and weight were significantly different among three fishing methods (P<0. 001). The average (± SD) CF of small mesh size beach seine, gillnet and commercial beach seine were calculated as 1. 30± 0. 20, 1. 38± 0. 17, 1. 29± 0. 13 and the Krel were recorded as 1. 30± 0. 19, 1. 37± 0. 17 and 1. 29± 0. 13, respectively. For both variables, there were significant differences among three fishing methods (P<0. 05). Also, the averages for CF and Krel were significantly different among the different length classes and seasons (P<0. 001). Based on the average Krel, it can be concluded that Rutilus Kutum had a good feeding and growth conditions in the Goharabaran region.

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APA: Copy

FAZLI, HASSAN, DARYANABARD, GHOLAMREZA, NADERI, MAHDI, & janbaz, Aliasghar. (2019). Changes in the condition factor and relative condition factor of Rutilus kutum in the eastern part of the Caspian Sea (Goharbaran). JOURNAL OF MARINE BIOLOGY, 10(40 ), 15-24. SID. https://sid.ir/paper/371125/en

Vancouver: Copy

FAZLI HASSAN, DARYANABARD GHOLAMREZA, NADERI MAHDI, janbaz Aliasghar. Changes in the condition factor and relative condition factor of Rutilus kutum in the eastern part of the Caspian Sea (Goharbaran). JOURNAL OF MARINE BIOLOGY[Internet]. 2019;10(40 ):15-24. Available from: https://sid.ir/paper/371125/en

IEEE: Copy

HASSAN FAZLI, GHOLAMREZA DARYANABARD, MAHDI NADERI, and Aliasghar janbaz, “Changes in the condition factor and relative condition factor of Rutilus kutum in the eastern part of the Caspian Sea (Goharbaran),” JOURNAL OF MARINE BIOLOGY, vol. 10, no. 40 , pp. 15–24, 2019, [Online]. Available: https://sid.ir/paper/371125/en

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