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Stock assessment of big eye croaker Pennahia macrophthalamus (Bleeker) (Pisces/Perciformes/Sciaenidae) from Bombay waters

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Title Stock assessment of big eye croaker Pennahia macrophthalamus (Bleeker) (Pisces/Perciformes/Sciaenidae) from Bombay waters
 
Creator Chakraborty, Sushant Kumar
 
Description 316-319
Growth, mortality and stock assessment of big eye croaker Pennahia macrophthalamus(Bleeker) is reported in the present communication. The asymptotic length of this species is estimated as 260mm and growth coefficient 1.20 per year. The total, natural and fishing mortalities were estimated as 3.24, 2.81 and 0.43 respectively. The stock assessment studies were carried out using length cohort and Thompson & Bell model. The result of this study shows that there is no decline in the catch of this species at the present level of exploitation. However, it is observed that even if the fishing efforts are doubled the catch can go up by only 12.74%. Therefore, further increase in the efforts is detrimental to the stock of P.macrophthalamus and the returns may not be remunerative.
 
Date 2016-11-18T10:06:10Z
2016-11-18T10:06:10Z
1996-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/37143
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.25(4) [December 1996]