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Fishery and ecology of the spiny lobster Panulirus homarus (Linnaeus, 1758) at Khadiyapatanam in the southwest coast of India

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Relation http://eprints.cmfri.org.in/9342/
 
Title Fishery and ecology of the spiny lobster
Panulirus homarus (Linnaeus, 1758) at
Khadiyapatanam in the southwest coast
of India
 
Creator Thangaraja, R
Radhakrishnan, E V
 
Subject Lobsters
 
Description Commercial exploitation of palinurid lobsters has been on the
increase due to high demand and lucrative price for live lobsters
in the international market. The spiny lobster Panulirus homarus
caught generally by traps and bottom-set gillnets support
significant commercial catches along the southern Indian coast.
Fishery along the southwest coast is seasonal, extending from
September to March and peak landings are during October to
December. The catch gradually declines from January and the
landing is negligible in April and May. The paper presents
results of a field study carried out on the ecology of the lobster
fishing ground at Khadiyapatanam, on the southwest coast of
India. Hydrographical parameters were used to correlate the
lobster catch from the coastal fishing grounds during the fishing
(October-November) and the non-fishing season (April-May) for
which lobster catch and the entangled associated fauna and
flora from 8 bottom-set-gillnets operated at different depth
zones were monitored. Mean catch in the bottom-set- gillnet
varied from 1.6 to 0.68 kg/net/day during October-January and
0.1 kg/net/day during April-May. Negative correlation between
bottom sea water temperature and the catch of P. homarus was
observed. The environmental and ecological conditions, widespread
beds of the brown mussel Perna indica are likely to be
impacting the abundance of P. homarus at Khadiyapatanam
fishing ground. The major groups of organisms in the fishing
ground were echinoderms, fishes, sponges, crustaceans and
molluscs. The paper discusses the probable influence of
environmental and ecological factors that impact the distribution
and fishery of P. homarus in the fishing grounds of
Khadiyapatanam.
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/9342/1/124.pdf
Thangaraja, R and Radhakrishnan, E V (2012) Fishery and ecology of the spiny lobster Panulirus homarus (Linnaeus, 1758) at Khadiyapatanam in the southwest coast of India. Journal of the Marine Biological Association of India, 54 (2). pp. 69-79.