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Observations on the fishery and biology of Megalaspis cordyla (Linnaeus) at Vizhinjam

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Relation http://eprints.cmfri.org.in/753/
 
Title Observations on the fishery and biology of Megalaspis
cordyla (Linnaeus) at Vizhinjam
 
Creator Sreenivasan, P V
 
Subject Fishery biology
 
Description The fishery for Megalaspis cordyla (locally called Vangoda) formed on an
average 6.63% of the total marine fish landings at Vizhinjam. An increasing trend
in the fishery was noticed from 1969 to 1973. Hooks and lines and drift nets
contributed to about 95.8% of the catch. Post-monsoon period was the best season
for the landings of M. cordyla.
Maturity studies indicated that the fish spawned only once a year and the
spawning psriod was of prolonged nature, from December to July with intensive
spawning during monsoon season. Spawning takes place beyond 5Km fishing belt
of Vizhinjam and the probable time of spawning being during night. Both the
females and males mature at the minimum size of 250 mm and the size at first
maturity being 270 mm. Females were generally found more in the catches.
The fish grows to 250 mm in the first year and to 290 mm in second year,
320 mm in the third year and to 330 mm by 40 months. The fishery was composed
of 0-year and one-year old fishes, both of them accounting to 90% of the catches,
and generally the former being the dominant.
 
Publisher CMFRI/ICAR
 
Date 1978
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/753/1/Article_16.pdf
Sreenivasan, P V (1978) Observations on the fishery and biology of Megalaspis cordyla (Linnaeus) at Vizhinjam. Indian Journal of Fisheries, 25 (1&2). pp. 122-140.