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Inter-annual variations of selected oceanographic parameters and its relation to fishery of small pelagics off Kochi, southwest coast of India

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Relation http://eprints.cmfri.org.in/10738/
http://mbai.org.in/php/journal.php
 
Title Inter-annual variations of selected
oceanographic parameters and its
relation to fishery of small pelagics
off Kochi, southwest coast of India
 
Creator Kripa, V
Prema, D
Jeyabaskaran, R
Khambadkar, L R
Nandakumar, A
Anilkumar, P S
Ambrose, T V
Bose, John
Nair, Preetha G
Pillai, V N
 
Subject Pelagic Fisheries
 
Description The availability as well as abundance of selected small
pelagics along Kerala coast (south west coast of India) was
highly variable during the past three decades. During the
period 1980-2012 there have been several periods of
abundance as well as population crashes in the oil sardine
fishery. The present study revealed that the occurrence of low
sea level during the month of May implies either early wind
driven upwelling or early intensification of equator-ward
coastal current and consequent upsloping of isopycnals. The
occurrence of low sea level (6857) as early as in May and
upwelled water in August with low dissolved oxygen (0.68
ml l-1) with low sea water temperature (24˚C) at the bottom
at 10 m depth, off Kochi was found to affect the sardine
fishery in the year 1994, when the landing at Kochi was only
15 t. Mean sea level was found to be a sign of upwelling and
the real time observations of dissolved oxygen indicated wide
variations during the upwelling period.
 
Publisher MBAI, Cochin-14
 
Date 2015
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/10738/1/4.%20JMBAI%2057-2%20ART8.pdf
Kripa, V and Prema, D and Jeyabaskaran, R and Khambadkar, L R and Nandakumar, A and Anilkumar, P S and Ambrose, T V and Bose, John and Nair, Preetha G and Pillai, V N (2015) Inter-annual variations of selected oceanographic parameters and its relation to fishery of small pelagics off Kochi, southwest coast of India. Journal of the Marine Biological Association of India, 57 (2). pp. 52-57. ISSN 2321-7898