TOXICITY OF AMMONIA TO THE LARVAE OF PENAEUS INDICUS H. MILNE EDWARDS


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Authors

  • P Jayasankar Central Marine Fisheries Research Institute, Cochin
  • M S Muthu Central Marine Fisheries Research Institute, Cochin

Abstract

Short-term experiments revealed a progressive increase in tolerance of the
larval stages of Penaeus indicus to ammonia. 24-h LC30 values for nauplius, protozoea
and mysis were 3.58 mg ammonia N/l (0.29 mg NH3-N/I), 17.86 mg ammonia-
Nil (0.95 mg NHyN) and 46.01 mg ammonia-Nil O.lTmgNHj-N/I). respectively.
48-h LCjo value for protozoea was 16.8 mg ammonia-N per liter (1.18 mg
NH3-N/I. Long-term chronic-toxicity experiments on nauplius to postlarva-1
showed that the 9-day incipient LCjo level was 11.99 ppm of ammonia-N{l (0.93
ppm NH3-N).

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Author Biographies

  • P Jayasankar, Central Marine Fisheries Research Institute, Cochin
    Central Marine Fisheries Research Institute, Cochin
  • M S Muthu, Central Marine Fisheries Research Institute, Cochin
    Central Marine Fisheries Research Institute, Cochin

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Issue

Vol. 30 No. 1 (1983)

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

Jayasankar, P., & Muthu, M. S. (2011). TOXICITY OF AMMONIA TO THE LARVAE OF PENAEUS INDICUS H. MILNE EDWARDS. Indian Journal of Fisheries, 30(1), 1-12. https://epubs.icar.org.in/index.php/IJF/article/view/11814