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<p>Estimation of population parameters for a data deficient <em>Salmostoma bacaila</em> (Hamilton 1822) stock from the Mahananda river (tributary of the Ganges) in NW Bangladesh</p>

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Title Statement <p>Estimation of population parameters for a data deficient <em>Salmostoma bacaila</em> (Hamilton 1822) stock from the Mahananda river (tributary of the Ganges) in NW Bangladesh</p>
 
Added Entry - Uncontrolled Name Sarmina, M S
Hossain, M Y
Islama, M A
Rahmana, M A
Khatuna, D
Mawa, Z
Chowdhurya, A A
Ohtomib, J
 
Uncontrolled Index Term Exploitation, Growth parameters, Maximum sustainable yield, Mortality, Salmostoma bacaila, Size at sexual maturity
 
Summary, etc. <p style="text-align: justify;"><em>Salmostoma bacaila </em>known as Razorbelly minnow (Hamilton in 1822) is an indigenous fish species in Bangladesh. This study emphasizes on population structure, growth pattern (length-weight and length-length relations), growth considerations (asymptotic length, <em>L</em><em><sub>∞</sub></em>; weight, <em>W</em><em><sub>∞</sub></em>; growth coefficient, <em>K</em>; age at zero length, <em>t<sub>0</sub></em>), size and age at sexual maturity (<em>L<sub>m</sub></em>), growth performance index (φ), life-span (<em>t<sub>max</sub></em>), conditions factor (Allometric, <em>K<sub>A</sub></em>; Fulton’s, <em>K<sub>F</sub></em> and Relative, <em>K<sub>R</sub></em>), prey-predator status through relative weight (<em>W<sub>R</sub></em>), form factor (<em>a<sub>3.0</sub></em>), total (<em>Z</em>), natural (<em>M</em>) and fishing mortality (<em>F</em>), exploitation rate (<em>E</em>) and maximum sustainable yield (MSY) of<em> S. bacaila </em>in the Mahananda river, northwestern Bangladesh. Total 305 specimens of <em>S. bacaila </em>were hardly sampled (ranging between 5.5 to 11.9 cm total length (TL), and 1.05 – 9.20 g total body weight (BW)) through regular fishing gears during August 2016 – July 2017. The regression coefficient <em>‘b’ </em>of length-weight relations specified negative allometric growth. Growth parameters (GP) were figured as <em>L</em><em><sub>∞ </sub></em>= 12.66 cm, <em>K </em>= 0.60 year<sup>-1</sup>, <em>W</em><em><sub>∞</sub></em><em> = </em>11.36 g, t<sub>0 </sub>= 0.048, <em>t<sub>max </sub></em>= 5.00 year<sup>-1</sup> and φ’ = 1.98. The <em>L<sub>m</sub></em> was 7.34 cm in TL. Relative weight did not create any significant dissimilarity of 100 that would suggest a healthy habitat for <em>S. bacaila.</em> The <em>a<sub>3.0</sub></em> was 0.0052 specifying that this fish could be described as elongated. In addition, the <em>Z</em> was calculated to be 1.57 year<sup>-1</sup>. The <em>M</em> and <em>F</em> values obtained were 0.92 and 0.65 year<sup>-1</sup>, respectively. The <em>E</em> was 0.41 and MSY (<em>E<sub>max</sub></em>) was estimated as 0.35 year<sup>-1</sup> by yield per recruitment model. Present research knowledge will be very useful in planning the sustainable and appropriate management of this species in Bangladesh and bordering countries.</p>
 
Publication, Distribution, Etc. Indian Journal of Geo-Marine Sciences (IJMS)
2022-09-30 00:47:33
 
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http://op.niscair.res.in/index.php/IJMS/article/view/66244
 
Data Source Entry Indian Journal of Geo-Marine Sciences (IJMS); ##issue.vol## 50, ##issue.no## 05 (2021)
 
Language Note en