Fishery for lizard fishes off Cochin with a note on the Biology of Saurida undosquamis (Richardson)

Sivakami, S (1996) Fishery for lizard fishes off Cochin with a note on the Biology of Saurida undosquamis (Richardson). In: The Fourth Indian Fisheries Forum, Proceedings, 24-28 November, 1996, Kochi .

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Abstract

Among the mi~ritimes tates of India, Kerala ranks first contributing to about 45% ofthe countrys lizardtish production. At Cochin Fisheries Harbour, this group contributes to an average of 3.05% of the total marine fish landings. Increased operation of shrimp trawlers is found to exert fishing pressure on the available stock. Caught mainly during monsoon months, lizard fishes are represented mainly by Saurida undosquamis and S.tumbil. positive correlation between rainfall and abundance of these species is noticed. Fishery of S.undosquamis is found supported by size groups 175 to 255 rnm during monsoon months and by size groups above 255 mm during postmonsoon months. Size at first maturity of S.undosquamis is 201-210 mm. Spawning season is prolonged with peak during October- December months. With lesser representation of ripe gonads in the catches, the species appears to breed away from the fishing grounds. Both juveniles and adults show a preference for smaller fishes such as Stolephorus.sp . Cannibalism is noticed in the group.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Fishery; lizard fishes; Biology; Saurida undosquamis
Subjects:Demersal Fishes > Lizard Fishes
Divisions:CMFRI-Cochin > Marine Capture > Demersal Fisheries
ID Code:4591
Deposited By:INVALID USER
Deposited On:30 Oct 2010 16:16
Last Modified:30 Oct 2010 16:16

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