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The co-relation of the West Coast (Malabar & South Kanara) fisheries with plankton and certain oceanographical factors

  • Published:
Proceedings / Indian Academy of Sciences

Summary

  1. 1.

    There are two peaks of rainfall, the major one in July to August due to S.W. Monsoon and the minor one in October effected by N.E. Monsoon.

  2. 2.

    The surface temperature is high in April and low in August followed by a gradual increase up till November when again there is a slight fall.

  3. 3.

    The changes in specific gravity are parallel to the changes in surface temperature.

  4. 4.

    The maximum productivity of plankton takes place in the months of July, August and September followed by a rise in December due to the showers of the N.E. Monsoon and again a period of steady production.

  5. 5.

    The landings of fish are directly proportional to the quantity of plankton produced in the different months of the year. The fishery has invariably been found to be good after heavy rains when they bring plenty of ‘indispensable food substances’, thus enriching the “pasture of the sea” and increasing the food of fishes.

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Bibliography

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Authors
  1. K. Chidambaram
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  2. M. Devidas Menon
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Additional information

Communicated by Prof. S. G. Manavala Ramanujam, f.a.sc.

With the kind permission of the Director of Industries and Commerce, Madras.

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Chidambaram, K., Menon, M.D. The co-relation of the West Coast (Malabar & South Kanara) fisheries with plankton and certain oceanographical factors. Proc. Indian Acad. Sci. 22, 355–367 (1945). https://doi.org/10.1007/BF03049913

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  • DOI: https://doi.org/10.1007/BF03049913

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