Record Details

Biology and fishery of Leiognathus brevirostris (Valenciennes) from the Palk Bay and the Gulf of Mannar

NOPR - NISCAIR Online Periodicals Repository

View Archive Info
 
 
Field Value
 
Title Biology and fishery of Leiognathus brevirostris (Valenciennes) from the Palk Bay and the Gulf of Mannar
 
Creator James, P. S. B. R.
Badrudeen, M.
 
Description 50-59
Age and growth, reproduction, food and feeding habits, and fishery of Leiognathus brevirostris from the Palk Bay and the Gulf of Mannar are described, based on material collected from commercial catches landed by different fishing gear during 1969. Life span of the species is about 2 yr, attaining a size of about 60 and 120 mm at the end of 1st and 2nd yr respectively. Female fish matures at about 63 mm and the male at 68 mm when they are just about 1 yr old. Female produces a maximum number of 16243 eggs. The species spawns throughout the year with intense spawning in May/June and October/November. Individual fish appears to spawn twice in an year. Diatoms, copepods, Lucifer, nematodes and polychaetes form important food of the species. The commercial fishery is based on 1 and under 2 yr old fish, the dominant size range being 62 to 105 mm. Fishing grounds are confined up to 12 m in the Palk Bay and 25 m in the Gulf of Mannar. Females appear to be caught in greater numbers than males. Since the species is short lived and breeds at the end of 1st yr, the present method of exploitation appear to leave enough brood for replenishment of the stock and ensure maximum utilization of the resource.
 
Date 2017-01-04T07:12:23Z
2017-01-04T07:12:23Z
1975-06
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://nopr.niscair.res.in/handle/123456789/39662
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.04(1) [June 1975]