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<span style="font-size:15.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-US">Estimation of growth, mortality and exploitation of <span style="font-size:15.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-GB">lesser tiger toothed croaker <i style="mso-bidi-font-style:normal"><span style="font-size:15.0pt;line-height:115%;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-US">Otolithes cuvieri</span></i><span style="font-size:15.0pt;line-height:115%; font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:AR-SA" lang="EN-US"> (Trewavas. 1974)<i style="mso-bidi-font-style: normal"> </i><span style="font-size:15.0pt;line-height:115%; font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; mso-bidi-font-family:"Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language: EN-US;mso-bidi-language:AR-SA" lang="EN-GB">in Pakistan</span></span></span></span>

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Title Estimation of growth, mortality and exploitation of lesser tiger toothed croaker Otolithes cuvieri (Trewavas. 1974) in Pakistan
 
Creator Memon, Khadim Hussain
Liu, Qun
Kalhoro, Muhsan Ali
Chang, Mohammad Saleem
Mirjat, Abul Nabi
 
Subject Otolithes cuvieri
Growth
Mortality
Biological reference points
Pakistan
 
Description 63-68
Four demersal trawl surveys were carried out in
Pakistani marine waters in 2009-2010.  Length
frequency data of 3219 individuals were used to estimate growth, mortality and
exploitation, whereas data of 671 individuals were used to estimate length
weight relationship in Otolithes cuvieri (Trewavas,
1974).  Length ranges from 3 - 35cm and
weight ranges from 1 - 208g.  Length
weight relationship parameters were computed as a = 0.014, b = 2.870 and R2 = 0.952. Using the ELEFAN routine of the FiSAT computer
package, the calculated von Bertalanffy growth function parameters were L∞= 36.75cm, K= 0.300/year. Total mortality were computed
using length-converted catch curve analysis at Z=1.26/year, whereas natural M=0.740/year and fishing mortality F=Z-M= 0.52/year were calculated. The exploitation ratios (E) were computed as Emax = 0.412, E10 = 0.355, E50 = 0.278. The yield per recruit analysis showed that when tc was 1, Fmax was calculated at 0.5 and F0.1 at 0.4. When biological reference point of Fopt was `M (0.740), current fishing mortality rate of 0.52 is smaller than the target biological reference point.
 
Date 2016-07-04T07:30:15Z
2016-07-04T07:30:15Z
2015-01
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34624
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.44(01) [January 2015]