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Seasonal abundance of bivalve and gastropod larvae in the plankton off Tuticorin coast

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Relation http://eprints.cmfri.org.in/2579/
 
Title Seasonal abundance of bivalve and gastropod larvae in the plankton off Tuticorin coast
 
Creator Siraimeetan, Pon
Marichamy, R
 
Subject Molluscan Fisheries
Gastropods
 
Description Estimation and identification of the commercially important molluscsn larvae occurring in the
plant(ton collected from inshore waters off Tuticorin coast during 1976-1985 indicated their abundance
in space and time. It is of practical significance to determine the fluctuations in the larval population
and settlement of many of the bivalves iilce the pearl oyster. The occurrence of bivalve and
gastropod larvae exhibit two distinct modes during February-April and September-December
indicating the peal( spawning seasons of these groups. In certain years, another prominent occurrence
of molluscan larvae was noticed during June-July. A maximum of 98.5% of bivalve larvae
were recorded in February, 1976 and 91.8% of gastropod larvae during June, 1976. The distribution
pattern of molluscan larvae and that of other planktonic organisms and the relationship with
hydrological factors are discussed. Several larval forms have been identified from the collections
indicating the significance of Tuticorin as an important molluscan resources zone.
 
Publisher CMFRI
 
Date 1988
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/2579/1/Article_52.pdf
Siraimeetan, Pon and Marichamy, R (1988) Seasonal abundance of bivalve and gastropod larvae in the plankton off Tuticorin coast. CMFRI Bulletin, 42(1). pp. 225-231.