Record Details

Biology of Meretrix casta (Chemnitz) and Paphia malabarica (Chemnitz) from Mulky estuary, Dakshina Kannada

CMFRI Repository

View Archive Info
 
 
Field Value
 
Relation http://eprints.cmfri.org.in/2563/
 
Title Biology of Meretrix casta (Chemnitz) and Paphia malabarica (Chemnitz) from Mulky estuary, Dakshina Kannada
 
Creator Rao, G Syda
 
Subject Molluscan Fisheries
 
Description Meretrix casta and Paphia malabarica are the major species contributing to the clam fisheries
of the Mulky estuary. Studies on age and growth indicated that M. casta attains 46.6 mm and P.
malabarica 48.1 mm in one year The von Bertalanffy growth equation is fitted for both the species.
most of these clams do not survive the second year. Length-weight relationship of both species and
other dimensional relationships of M. casta are worked out. The major spawning season of M. casta
and P. malabarica are Septtmbar-lVlarch and October-February rtspectlvely. In M. casta females are
significantly dominant beyond 30 mm length. This species attains first maturity at a length of 17mmiHigh
condition index in both the species coincided with peak spawning period. An analysis of rings
on the shells of M. casta indicated that they are not useful in age determination. Various aspects of
the biology of the above two species are discussed in relation to the ecological conditions of the Mulky
estuary.
 
Publisher CMFRI
 
Date 1988
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/2563/1/Article_38.pdf
Rao, G Syda (1988) Biology of Meretrix casta (Chemnitz) and Paphia malabarica (Chemnitz) from Mulky estuary, Dakshina Kannada. CMFRI Bulletin, 42 (1). pp. 148-153.