EFFECT OF SALINITY, TEMPERATURE AND OXYGEN PARTIAL PRESSURE ON THE RESPIRATORY METABOLISM OF PANULIRUS POLYPHAGUS (HERBST)


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Authors

  • H Mohamad Kasim Research Centre of Central Marine Fisheries Research Institute, Tuticorin.

Abstract

The lethal oxygen levels, time to death, total oxygen consumed and the
metabolic rates of Panulirus polyphagus (Herbst) are estimated at different salinities,
temperatures and oxygen partial pressures after acclimating the lobsters to
17, 32, 39 and 50 ppt at ambient temperatures 22.5, 22.1, 28.1 and 20.1°C, respectively.
The incipient lethal salinities are obtained graphically from lethal oxygen
levels and time to death at different salinities. The metabolic rate is uniformly
high within oxygen independent zone of higher pOj and, in oxygen dependent
zone, it is curtailed drastically. Subsequently, the low oxygen partial pressure
becomes lethal. As a means of compensation, the metabolic rate in this species
decreases at extreme salinities and tends to increase at intermediary salinities. The
influence of salinity acclimation and temperature on the metabolic rate is evident.
It is suggested that factors other than salinity gradient may also be sought in order
to explain the metabolic pattern of this species.

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Author Biography

  • H Mohamad Kasim, Research Centre of Central Marine Fisheries Research Institute, Tuticorin.
    Research Centre of Central Marine Fisheries Research Institute, Tuticorin.

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Issue

Vol. 33 No. 1 (1986)

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

Kasim, H. M. (2011). EFFECT OF SALINITY, TEMPERATURE AND OXYGEN PARTIAL PRESSURE ON THE RESPIRATORY METABOLISM OF PANULIRUS POLYPHAGUS (HERBST). Indian Journal of Fisheries, 33(1), 66-75. https://epubs.icar.org.in/index.php/IJF/article/view/10875