Record Details

The perch fishery by traditional traps at Kilakarai (Gulf of Mannar) and some aspects of biology of Lethrinus nebulosus (Forskal)

CMFRI Repository

View Archive Info
 
 
Field Value
 
Relation http://eprints.cmfri.org.in/2949/
 
Title The perch fishery by traditional traps at Kilakarai
(Gulf of Mannar) and some aspects of biology
of Lethrinus nebulosus (Forskal)
 
Creator Ameer Hamsa, K M S
Mohamad Kasim, H
 
Subject Perch fishes
 
Description Exploitation of perch resources off Kilakarai in the Gulf of Mannar, by traditional traps is studied. The
increase in perch landings and the change in succession of species are attributed to the change in mode of operation,
area of operation and increase in the usage of prawn peeUngs predominantly as baits in place of traditional baits.
The biology of the dominant species Lethrinus nebulosus is studied. The age and growth of this species is described
from the length frequency data collected from the landings of perch traps. The length-weight relationship and
food and feeding are dealt in detail. The mortality coefficient namely natural (M), total (Z) and fishing (F),
exploitation rate (U) and yield per recruit in relation to different F, M/K ratios keeping the age at first capture
constantly at the prevailing level (0.2913 yr) have been estimated to assess the present status of the fishery of
this species. It is inferred that this species is exposed to higher fishing intensity by the perch trap units as the
prevailing fishing mortality coefficients are higher than the F ^ , which can bring about the yield max for the
prevailing M/K ratio. This finding is attributed as one of the possible reasons for the continued decline in the
percentage composition of L. nebulosus in the perch trap landings since 1950s.
 
Publisher CMFRI Kochi
 
Date 1994
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/2949/1/Article_09.pdf
Ameer Hamsa, K M S and Mohamad Kasim, H (1994) The perch fishery by traditional traps at Kilakarai (Gulf of Mannar) and some aspects of biology of Lethrinus nebulosus (Forskal). CMFRI Bulletin-Perch fisheries in India, 47. pp. 98-105.