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Influence of Environmental Factors on Growth Rate of Crassostrea madrasensis (Preston) in Suspended Culture

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Relation http://eprints.cmfri.org.in/5735/
http://www.asianfisheriessoceity.org
 
Title Influence of Environmental Factors on Growth Rate of Crassostrea madrasensis (Preston) in Suspended Culture
 
Creator Sasikumar, Geetha
Krishnakumar, P K
Thomas, Sujitha
SampathKumar, G
Nagaraja, D
Bhat, G S
 
Subject Bivalves
age and growth
 
Description Growth response of Crassostrea madrasensis to varying environmental factors in
the Mulki estuary of Karnataka was investigated from April 2004 to March 2005. Temperature,
salinity, pH, particulate organic matter (POM), particulate inorganic matter
(PIM), total particulate matter (TPM) and chlorophyll a (Chl a) levels were correlated
with growth in shell length. Marked seasonal patterns in growth rate were observed in
relation to changes in environmental factors. Growth curve indicated a rapid phase
(16.21±1.2 mm month-1) initially (May-June) followed by a slow phase (0.8±0.52 mm
month-1) coinciding with the drop in salinity (August-September). Considering the temporal
variations of environmental factors, their influence on growth rate was analysed
seasonally. The growth rate was significantly correlated with Chl a concentrations in all
the seasons. A pronounced seasonal cycle was noticed in Chl a levels resulting from
blooms in pre-monsoon (April-May) and post-monsoon (October) seasons.
 
Publisher Asian Fisheries Soceity; Malaysia
 
Date 2007
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/5735/1/1.pdf
Sasikumar, Geetha and Krishnakumar, P K and Thomas, Sujitha and SampathKumar, G and Nagaraja, D and Bhat, G S (2007) Influence of Environmental Factors on Growth Rate of Crassostrea madrasensis (Preston) in Suspended Culture. Asian Fisheries Science, 20 (3). pp. 241-255.