Feeding and ingestion rates in different size groups of pearl oyster Pinctada fucata (Gould) spat

Panikkar, Preetha and Paulraj, R and Kandasamy, D (2004) Feeding and ingestion rates in different size groups of pearl oyster Pinctada fucata (Gould) spat. Journal of the Marine Biological Association of India, 46 (1). pp. 50-55.

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Abstract

Optimum feed requirement and ingestion rate of pearl oyster Pinctada fucata spat of three different size groups were studied. The spat were fed Chaetoceros sp. at different concentrations to study the feeding rate. Spat in the size group 5-9 mm had the maximum growth when fed at a concentration of 3 lakh cells ml-1' spat-1' day-1'. Spat in the size range 10-14 mm and 15-19mm showed the maximum growth at a feed concentration of 6 lakh cells and 9 lakh cells respectively. The growth rate was found to be higher in smaller group with lower concentration of feed whereas growth increment was higher in larger group at a higher concentration.The ingestion rates were found to be directly related to the size of the spat. Larger the spat, more is the rate of ingestion hr'. The results of this study could be taken advantage of in the hatchery and onshore culture systems for maintaining optimum algal densities for raising oyster spat.

Item Type:Article
Uncontrolled Keywords:Feeding and ingestion rates in pearl oyster
Subjects:Molluscan Fisheries > Pearl oyster
Divisions:CMFRI-Cochin > Marine Capture > Molluscan Fisheries
ID Code:2013
Deposited By:Edwin Joseph
Deposited On:17 Aug 2010 00:42
Last Modified:16 Jun 2011 12:14

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