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Comparison of Age and Growth Characteristics of the Knipowitschia caucasica (Berg, 1916) in the Gorgan Bay and Gomishan wetland (Southeast Caspian Sea)
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Bahman Cheperli   , Rahman Patimar * , Rasoul Ghorbani , Kiavash Golzarianpour |
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Abstract: (51 Views) |
| This Study was conducted to determine the growth characteristics of Caucasian species (K. caucasica) in Gorgan Bay and Gomishan wetland. 149 specimens from Gorgan Bay and 192 specimens from Gomishan wetland were collected from February 2013 to May 2014 using beach sein. The length of samples range from 07.07 to 39.41 mm and weighing from 0.01 to 0.84 gr, and 48/15 to 44/78 mm and weighing from 0.05 to 1.0 gr in Gorgan Bay and Gomishan wetland. The age of the specimens was determined by Otolith and the ranges from + 0 to +1 in the Gorgan Bay and +0 to +2 in the Gomishan wetland. The b value in the Gorgan Bay for males 3.07-3.32, for females 3.31-3.3.69 and for male 3.16-3.43 and for female 3.19-3.45 in Gomishan wetland. The growth pattern of this species was positive allometric for both sexes in Gorgan Bay and Gomishan wetland. The highest condition factor in Gorgan Bay for male and female was observed in March, and in Gomishan wetland, in May and February, respectively. |
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| Keywords: Growth Characteristics, K. caucasica, Gorgan Bay, Gomishan wetland. |
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Full-Text [PDF 1205 kb]
(6 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2019/05/5 | Accepted: 2025/04/26 | Published: 2025/06/27
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