Fishery and biology of the oil sardine at Karwar

Annigeri, G G (1969) Fishery and biology of the oil sardine at Karwar. Indian Journal of Fisheries, 16 (1&2). pp. 35-50.



The oil sardine fishery at Karwar showed erratic fluctuations during the years of study, from an annual landing figure of 4.41 tonnes in 1964-65 to 250.06 tonnes in 1967-68. The average, based on the earlier 14 years' catch worked out to 91.21 tonnes. The three length frequency modes at 135-140, 160-165 and 185-190 mm have been interpreted to correspond to I, II and III age groups. The fish attains maturity at about 140 mm and the spawning season lasts from July-August to November-December. This is also supported by the trend of change in 'K' values. A good fishery season seems related to the temperature range of 27-29.5°C, lower salinity and a low phosphate content in the water.

Item Type:Article
Uncontrolled Keywords:Fishery biology; oil sardine; Karwar
Subjects:Pelagic Fisheries > Oil sardine
Fishery biology
Divisions:CMFRI-Cochin > Marine Capture > Pelagic Fisheries
ID Code:1589
Deposited By:Dr. V Mohan
Deposited On:24 Jul 2010 15:23
Last Modified:24 Jul 2010 15:23

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