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<p>Growth, mortality and stock assessment of <em>Arius arius</em> (Hamilton, 1822) from Hooghly-Matlah estuary, West Bengal</p>

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Title Statement <p>Growth, mortality and stock assessment of <em>Arius arius</em> (Hamilton, 1822) from Hooghly-Matlah estuary, West Bengal</p>
 
Added Entry - Uncontrolled Name Chirwatkara, B B
Das, S K
Bhakta, D
Nagesha, T S
Beheraa, S
 
Uncontrolled Index Term Arius arius, Growth parameters, Hooghly-Matlah estuary, Mortality, Stock assessment
 
Summary, etc. <p style="text-align: justify;">The growth, mortality, and stock assessment of <em>Arius arius </em>were estimated based on monthly length-frequency analysis data collected from the Hooghly-Matlah estuary of West Bengal, India from April 2017 to March 2018. The estimated growth parameters were as L<sub>∞</sub> = 278 mm, K = 0.97 yr<sup>-1</sup>, and t<sub>0</sub> = -0.0889 years. The different mortality coefficients Z, M, and F were obtained as 5.25 yr<sup>-1</sup>, 1.79 yr<sup>-1</sup>, and 3.46 yr<sup>-1</sup>, respectively. The calculated exploitation ratio (E) was found as 0.66, and the M/K value as 1.845 indicating overexploitation of the fish. The recruitment was found throughout the year with two peaks and the value of L<sub>c</sub> was found at 56.00 mm. The estimated virtual population analysis (VPA) indicated that the highest fishing mortality (F) of 3.4499 was observed at the 190-200 mm length class, followed by 3.2393 from the 180-190 mm length class. The fishery was found at the overexploitation level and measures are needed to regulate it for promoting its sustainability.</p>
 
Publication, Distribution, Etc. Indian Journal of Geo-Marine Sciences (IJMS)
2022-09-30 00:37:52
 
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http://op.niscair.res.in/index.php/IJMS/article/view/66202
 
Data Source Entry Indian Journal of Geo-Marine Sciences (IJMS); ##issue.vol## 50, ##issue.no## 04 (2021)
 
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