INHIBITION OF PRIMARY PRODUCTION AS INDUCED BY HEAVY METAL IONS ON PHYTOPLANKTON POPULATION OFF COCHIN


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Authors

  • P Kaladharan Central Marine Fisheries Research Institute Cochin - 682031, India
  • S V Alavandi Central Marine Fisheries Research Institute Cochin - 682031, India
  • V K Pillai Central Marine Fisheries Research Institute Cochin - 682031, India
  • V K Balachandran Central Marine Fisheries Research Institute Cochin - 682031, India

Abstract

The effect of five metals (Cd, Ni, Cr, Pb and Hg) at different concentrations below and above tolerance
limits, in the primary productivity off Cochin was investigated. It was observed that cadmium, nickel,
lead, chromium and mercury even at low concentrations were found inhibiting the primary productivity.
Among the metals tested, nickel apfieared to be the least toxic and mercury the most toxic in their
inhibitory effect. It was evident that the synergistic effect of inhibition was more acute when the metals
were present in combination than each metal individually.

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Author Biographies

  • P Kaladharan, Central Marine Fisheries Research Institute Cochin - 682031, India
    Central Marine Fisheries Research Institute Cochin - 682031, India
  • S V Alavandi, Central Marine Fisheries Research Institute Cochin - 682031, India
    Central Marine Fisheries Research Institute Cochin - 682031, India
  • V K Pillai, Central Marine Fisheries Research Institute Cochin - 682031, India
    Central Marine Fisheries Research Institute Cochin - 682031, India
  • V K Balachandran, Central Marine Fisheries Research Institute Cochin - 682031, India
    Central Marine Fisheries Research Institute Cochin - 682031, India

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Issue

Vol. 37 No. 1 (1990)

Section

Articles

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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

Kaladharan, P., Alavandi, S. V., Pillai, V. K., & Balachandran, V. K. (2011). INHIBITION OF PRIMARY PRODUCTION AS INDUCED BY HEAVY METAL IONS ON PHYTOPLANKTON POPULATION OFF COCHIN. Indian Journal of Fisheries, 37(1), 51-54. https://epubs.icar.org.in/index.php/IJF/article/view/10426