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Biology and stock assessment of the bigeye croaker Pennahia anea (Bloch, 1793) landed along Andhra Pradesh, north-east coast of India

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Relation http://eprints.cmfri.org.in/10347/
 
Title Biology and stock assessment of the bigeye croaker Pennahia anea
(Bloch, 1793) landed along Andhra Pradesh, north-east coast of India
 
Creator Muktha, M
Maheswarudu, G
Rohit, Prathibha
Laxmilatha, P
Das, Madhumita
Rao, K Narayana
 
Subject Stock Assessment
Biology
 
Description Fishery and biology of the bigeye croaker Pennahia anea landed by shrimp trawls at Visakhapatnam during June 2007 to
December 2011 was studied and stock assessment was carried out for Andhra Pradesh. Pennahia anea formed 12.8% of
the total sciaenids landed in the state. The mean length was 18.34 cm and length at first maturity was 16.65 cm. The growth
parameters L∞ and K were estimated as 33.0 cm and 0.7 year-1. The length-weight relationship was estimated separately for
male and female as Log W = -1.567 + 2.812 Log L (r2 = 0.88) and Log W = -1.9229 + 3.094 Log L (r2 = 0.96) respectively.
Female bigeye croaker showed positive allometric growth whereas male showed negative allometric growth. The total
mortality (Z) was 4.23, natural mortality (M) 1.35 and fishing mortality (F) was 2.88. The exploitation rate (E) was 0.68.
Yield-per-recruit at current fishing was 37.905 g and maximum yield-per-recruit was 38.282 g indicating that the stock of
bigeye croaker along Andhra Pradesh coast is being optimally exploited.
 
Date 2015
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/10347/1/8.pdf
Muktha, M and Maheswarudu, G and Rohit, Prathibha and Laxmilatha, P and Das, Madhumita and Rao, K Narayana (2015) Biology and stock assessment of the bigeye croaker Pennahia anea (Bloch, 1793) landed along Andhra Pradesh, north-east coast of India. Indian Journal of Fisheries, 62 (1). pp. 46-51.