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Population Dynamics of an Exploited Stock of the Clam Paphia malabarica of Astamudi Estuary (South India)

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Relation http://eprints.cmfri.org.in/4558/
 
Title Population Dynamics of an Exploited Stock of the Clam
Paphia malabarica of Astamudi Estuary (South India)
 
Creator Appukuttan, K K
Aravindan, C M
Yohannan, T M
Balasubramanian, N K
 
Subject Clam
 
Description Growth studies conducted in 1989-90 on Ptrphiu nruluh~rrrco from Ashtamudi estuary, South India, showed that it attaines 30 mm length in one year, 38 mm in
two years and 41 mm in three years. The La was calculated as 44.4 mm. In commercial catches, I-year class dominated, followed by 0-year, 2-year and 3+year
classes.
Average total mortality rate Z, was estimated as 2.11, natural mortality rate as 1.17 and fishing mortality rate F as 0.94. The exploitation rate
was 0.3915, the annual stock (YIU) 3234.9 t and the estimate of MSY was 3408.8 t. It is concluded that the present level of exploitation is
closer to the optimum.
 
Date 1996
 
Type Conference or Workshop Item
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/4558/1/3.pdf
Appukuttan, K K and Aravindan, C M and Yohannan, T M and Balasubramanian, N K (1996) Population Dynamics of an Exploited Stock of the Clam Paphia malabarica of Astamudi Estuary (South India). In: The Fourth Indian Fisheries Forum, Proceedings, 24-28 November, 1996, Kochi.