Growth performance of the seabass Lates calcarifer (Blotch) in sea cage at Vizhinjam Bay along the south-west coast of India

Anil, M K and Santhosh, B and Jasmine, S and Saleela, K N and George, Rani Mary and Kingsly, H Jose and Unnikrishnan, C and Rao, A Hanumantha and Rao, G Syda (2010) Growth performance of the seabass Lates calcarifer (Blotch) in sea cage at Vizhinjam Bay along the south-west coast of India. Indian Journal of Fisheries, 57 (4). pp. 65-69.

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Abstract

The growth potential of the Asian seabass, Lates calcarifer in floating sea cage was assessed by rearing them in a large HDPE floating cage moored at Vizhinjam Bay, south-west coast of India. Seabass seed (mean weight and mean total length, 2.5 g and 53 mm respectively) were nursery reared in hapas in December 2008, fed on pellet feed and grown to an average size of 28 g and 135 mm in 60 days, with a survival rate of 60%. Subsequently, the juveniles were stocked into the cages at a stocking rate of 60 nos. m-3 in February 2009, fed on trash fish and reared for a period of 112 days during which they grew to an average size of 540 g and 328 mm. Weight gain per day increased from 0.2 g in December 2008 to 7.71 g in May 2009, while SGR decreased from 5.88 to 2.47. The hydrological parameters viz., temperature, pH, salinity, dissolved oxygen and microbial load recorded were at optimal levels for the normal growth of seabass. The results obtained indicated that cage culture of seabass in the sea can provide significant advantages in terms of faster growth and effective utilisation of water volume.

Item Type:Article
Uncontrolled Keywords:Cage culture; Growth; Lates calcarifer; Seabass
Subjects:Aquaculture > Seabass
Aquaculture > Mariculture
Divisions:CMFRI-Cochin > Mariculture
ID Code:7808
Deposited By:Dr. V Mohan
Deposited On:25 Feb 2011 12:18
Last Modified:28 Dec 2013 11:08

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