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Biology and fishery of <i>Lactarius lactaarius</i> (Schneider) off Mangalore

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Title Biology and fishery of Lactarius lactaarius (Schneider) off Mangalore
 
Creator James, P. S. B. R.
Shanbhogue, S. L.
Gupta, T. R. Chandrasekhara
 
Description 72-79
Data on age and growth, feeding habits and spawning of L. lactarius based on material collected from trawl catches off Mangalore are presented. Based on length frequency studies, the life span of the species has been fixed as 3 yr, attaining a size of 150 mm TL (total length) at the end of 1st yr, and 270 mm 2nd yr. Fish in the 3rd yr of life are few in the commercial catches, the fishery being mainly based on O and 1 + yr old fish. Males are fished more than females. Larger fish appear to be available in deeper waters. The species is best captured in otter trawls up to a depth of 30 m. Good catches are obtained during October to December. L. lactarius breeds almost throughout the year off Mangalore; all individuals may not breed at the same time. Peak spawning appears to take place from January to May. Size at first maturity is about 131 mm TL. Maximum number of eggs found in a mature fish is 78221. The fish feeds mainly on juveniles and adults of teleostean fishes and shrimps. Juveniles feed more on crustaceans. The variety in prey increases with age of fish. Occurence and distribution of the fish appear to be influenced by the forage organisms to some extent.
 
Date 2017-01-03T05:03:58Z
2017-01-03T05:03:58Z
1974-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39526
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.03(1) [June 1974]