FLUCTUATIONS OF THE OIL SARDINE FISHERY AT CANNANORE DURING 1961—1964


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Authors

  • P Bensam Central Marine Fisheries Research Institute; Unit, Cannanore

Abstract

The decreasing trend in the catches of oil sardine at Cannanore from 1961-62 season
leading to the total failure during 1963-64 and the remarkable recovery during 1964-65 are
described. Information on the biology of the fish, based on the catches, such as maturity
and feeding activities is briefly given. Observations on the behaviour of the fish in relation
to certain environmental conditions have shown that temperature and salinity,
perhaps, play a more significant role In the abundance of the population than factors like
food or spawning. Juvenile oil sardine appear to have a narrower range of tolerance to
temperature and salinity while the adults appear to have a wider range. Abudance of yearclasses
in relation to their individual contributions to the fishery during each season has
shown that the success or failure of the fishery in a given season depends upon the abundance
of the juveniles recruited during that season. The probable causes for the failure of
the fishery during 1963-64 and for the recovery during 1964-65 are discussed in the light
of the data available.

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Author Biography

  • P Bensam, Central Marine Fisheries Research Institute; Unit, Cannanore
    Central Marine Fisheries Research Institute; Unit, Cannanore

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Issue

Vol. 17 No. 1 & 2 (1970)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Bensam, P. (2011). FLUCTUATIONS OF THE OIL SARDINE FISHERY AT CANNANORE DURING 1961—1964. Indian Journal of Fisheries, 17(1 & 2), 132-148. https://epubs.icar.org.in/index.php/IJF/article/view/13207