STUDIES ON THE PHYTOPLANKTON OF THE COCHIN BACKWATER A TROPICAL ESTUARY


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Authors

  • C P Gopinathan Central Marine fisheries Research Institute, Cochin-l8.
  • P V Ramachandran Nair Central Marine fisheries Research Institute, Cochin-l8.
  • A K Kesavan Nair Central Marine fisheries Research Institute, Cochin-l8.

Abstract

The paper deals with the seasonal and spatial variation of phytoplankton,
based on the observ^tiiMis at four stations (Aroor to Fairway Buoy) in the Cochin
backwater during 1972-73. Two peaks of phytoplankton abundance are usually
observed, with the diatonts Inlaying the major role in determining the pattern of
seasonal variations. An analysis of variance indicates that the spatial variation iis
as high as the seas<j)nal variation. The usefulness of chlorophyll a in relation to
the phytoplankton counts as a measure of the phytoplankton abundance has been
studied by using the correlation coefficients; it has been found from an analysis of
covariance that a cdmmon relationship exists between phytoplankton and chlorophyll
a for the estuary. The fluctuations in some of the environmental characteristics
have been discussed with their relative influence on thei production of
phytoplankton. In th^ light of the results obtained, outlines of modifications in the
sampling procedure ^lave been given to make the study of phytoplankton production
in the estuary more comprehensive.

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Author Biographies

  • C P Gopinathan, Central Marine fisheries Research Institute, Cochin-l8.
    Central Marine fisheries Research Institute, Cochin-l8.
  • P V Ramachandran Nair, Central Marine fisheries Research Institute, Cochin-l8.
    Central Marine fisheries Research Institute, Cochin-l8.
  • A K Kesavan Nair, Central Marine fisheries Research Institute, Cochin-l8.
    Central Marine fisheries Research Institute, Cochin-l8.

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Issue

Vol. 21 No. 2 (1974)

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

Gopinathan, C. P., Nair, P. V. R., & Nair, A. K. K. (2011). STUDIES ON THE PHYTOPLANKTON OF THE COCHIN BACKWATER A TROPICAL ESTUARY. Indian Journal of Fisheries, 21(2), 501-513. https://epubs.icar.org.in/index.php/IJF/article/view/12326