Stock assessment of the round herring, Etrumeus teres (De Kay, 1842) in the Egyptian sector of Red Sea


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Authors

  • Sahar Fahmy Mehanna National Institute of Oceanography and Fisheries, P.O. Box, 182, Suez, Egypt.
  • Fahmy I El-Gammal National Institute of Oceanography and Fisheries, P.O. Box, 182, Suez, Egypt.

Abstract

Age and growth, mortality, length cohort analysis and stock size of Etrumeus teres collected from the Egyptian sector of Red Sea during the period from October 2001 to May 2003 have been estimated from the length-frequency distribution data of more than 3000 fishes. Age composition was determined using
otolith’s reading as well as the Bhattacharya’s method and the results showed that E.teres ranged from 1 to 3 years old. The von Bertalanffy growth parameters were: K=0.59 year-1, L∞=26.97 cm and t0 = -0.4 year. The instantaneous
rates of total, natural and fishing mortality were estimated as 2.33, 0.87 and 1.46 year-1 respectively. Exploitation rate was estimated as 0.63. Stock size of E.teres has been estimated by cohort analysis. The study shows that a further increase in fishing effort will not be economical and would further endanger
recruitment.

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Author Biographies

  • Sahar Fahmy Mehanna, National Institute of Oceanography and Fisheries, P.O. Box, 182, Suez, Egypt.
    National Institute of Oceanography and Fisheries, P.O. Box, 182, Suez,
    Egypt.
  • Fahmy I El-Gammal, National Institute of Oceanography and Fisheries, P.O. Box, 182, Suez, Egypt.
    National Institute of Oceanography and Fisheries, P.O. Box, 182, Suez,
    Egypt.

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Issue

Vol. 52 No. 4 (2005)

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

Mehanna, S. F., & El-Gammal, F. I. (2011). Stock assessment of the round herring, Etrumeus teres (De Kay, 1842) in the Egyptian sector of Red Sea. Indian Journal of Fisheries, 52(4), 377-383. https://epubs.icar.org.in/index.php/IJF/article/view/7102