ESTIMATION OF TOTAL MORTALITY RATES OF MUGIL CEPHALUS LINNAEUS IN PULICAT LAKE


120 / 76

Authors

  • C P Rangaswamy Central Inland Fisheries Research Institute, Pulicat Lake Unit, Madras.

Abstract

Total mortality rates i.e., the sum of natural and fishing mortality rates of
Mugil cephalus during 1966 and 1967 in the Pulicat Lake are estimated. As per
the age frequencies in the fishery, the following values were obtained for the
annual mortality rate (r), survival rate (s) and the instantaneous mortality rate
(i): 0.3606, 0.6394 and 0.4917, respectively. An instantaneous mortality rate of
0.5187 was derived using asymptotic length (Lcri), length at recruitment (Lr)
and average length (L).

Downloads

Download data is not yet available.

Author Biography

  • C P Rangaswamy, Central Inland Fisheries Research Institute, Pulicat Lake Unit, Madras.
    Central Inland Fisheries Research Institute, Pulicat Lake Unit, Madras.

Downloads

Issue

Vol. 21 No. 2 (1974)

Section

Note

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

Rangaswamy, C. P. (2011). ESTIMATION OF TOTAL MORTALITY RATES OF MUGIL CEPHALUS LINNAEUS IN PULICAT LAKE. Indian Journal of Fisheries, 21(2), 588-590. https://epubs.icar.org.in/index.php/IJF/article/view/12340