LENGTH-WEIGHT RELATIONSHIP IN THE OIL-SARDINE, SARDINELLA LONGICEPS VAL.


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Authors

  • B T Antony Raja Central Marine Fisheries Research Institute; Sub-station, Kozhikode

Abstract

The study of the length-weight relationship in fishes by fishery biologists has
been mainly directed towards two objectives, namely, to provide a mathematical
relationship between the two measurements as a means of interconversion and secondly,
to calculate the 'condition factor' (Le Cren, 1951). In a species of commercial importance,
the former object has been found essential to convert the catch statistics of
that species, from weight to numbers in order to obtain the abundance of stock in
space and time. However, the question that has to be answered first for both the
above objects is whether a single equation will suffice or separate equations are
required to describe the relationship between length and weight at various times of the
year and phases of life history.
In spite of the great economic importance of the Indian oil-sardine, Sardinella
longiceps, in the marine fishery resources of India and in spite of the fact that investigations
on this fish date back to 1910 with Hornell's report, there has been, except for
a brief account by Dhulkhed (1963) on an year's data, no attempt; to study this biological
aspect of the fish. The present report deals with the length-weight data of oilsardine
collected from Calicut region in the years 1959 to 1964.

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Author Biography

  • B T Antony Raja, Central Marine Fisheries Research Institute; Sub-station, Kozhikode
    Central Marine Fisheries Research Institute; Sub-station, Kozhikode

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Issue

Vol. 14 No. 1 & 2 (1967)

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

Raja, B. T. A. (2011). LENGTH-WEIGHT RELATIONSHIP IN THE OIL-SARDINE, SARDINELLA LONGICEPS VAL. Indian Journal of Fisheries, 14(1 & 2), 159-170. https://epubs.icar.org.in/index.php/IJF/article/view/13341