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Population structure, growth, mortality and yield per recruit of segestid shrimp, <i>Acetes japonicus </i>(Decapoda: Sergestidae) from the coastal waters of Malacca, Peninsular Malaysia

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Title Population structure, growth, mortality and yield per recruit of segestid shrimp, Acetes japonicus (Decapoda: Sergestidae) from the coastal waters of Malacca, Peninsular Malaysia
 
Creator Amin, S. M. Nurul
Arshad, A.
Siraj, S. S.
Sidik, B. Japar
 
Subject Population dynamics
Acetes Japonicus
Malaysia
 
Description 57-68
Present study consists the population structure, growth, mortality and relative yield recruit of A. japonicus from the coastal waters of Malacca, Peninsular Malaysia. FISAT software has been used to examine the monthly data. The asymptotic length (La) and growth co-efficient (K) was estimated as 29.08 mm and 1.4 y-1. The growth performance index (φ) was calculated as 3.073. The exponent (b) of the length-weight relationship was found to be 3.063 (± 0.015). The asymptotic weight was calculated as 187.72 mg. Total mortality coefficient (Z) was estimated at 5.16 yr-1. The natural mortality (M) and fishing mortality (F) was calculated as 2.35 yr-1 and 2.81 yr-1, respectively. Exploitation rate (E) of A. japonicus was estimated as 0.54. The recruitment pattern was continuous throughout the year with one major peak. The relative yield per recruit analysis predicted the maximum exploitation rate (Emax) = 0.52. The current exploitation rate E is slightly higher than predicted Emax. The stock of A. japonicus was found to be over exploited in the investigated area.
 
Date 2009-05-22T05:27:46Z
2009-05-22T05:27:46Z
2009-03
 
Type Article
 
Identifier 0379-5136
http://hdl.handle.net/123456789/4245
 
Language en_US
 
Publisher CSIR
 
Source IJMS Vol.38(1) [March 2009]