Fishery and population characteristics of mackerel landed by trawlers along the Dakshina Kannada coast


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Authors

  • Prathibha Rohit Mangalore Research Centre of Central Marine Fisheries Research Institue, Mangalore - 575 001, India
  • P P Pillai Mangalore Research Centre of Central Marine Fisheries Research Institue, Mangalore - 575 001, India
  • Alli C Gupta Mangalore Research Centre of Central Marine Fisheries Research Institue, Mangalore - 575 001, India
  • K Preetha Mangalore Research Centre of Central Marine Fisheries Research Institue, Mangalore - 575 001, India

Abstract

The Indian mackerel, Rastrelliger kanagurta forms 5-40 % of the marine fish landings along the Dakshina Kannada coast. The paper deals with the fishery, biology and stock assessment of mackerel landed by trawlers along this coast. The mackerel landed were in size 145-275 mm and the length-weight relation was W = 0.00000138481 L ^^^^ Growth parameters estimated were L = 281.67 mm and K = 1.233. Based on these estimates and mean values of M 1.696, F 2.9226 and Z 4.6186 with current effort, yield is 452 t per annum at E 0.63. The MSY has been calculated as 530 t for an effort factor of 6.0 indicating that further increase in effort can bring in more mackerel

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Author Biographies

  • Prathibha Rohit, Mangalore Research Centre of Central Marine Fisheries Research Institue, Mangalore - 575 001, India
    Mangalore Research Centre of Central Marine Fisheries Research Institue,
    Mangalore - 575 001, India
  • P P Pillai, Mangalore Research Centre of Central Marine Fisheries Research Institue, Mangalore - 575 001, India
    Mangalore Research Centre of Central Marine Fisheries Research Institue,
    Mangalore - 575 001, India
  • Alli C Gupta, Mangalore Research Centre of Central Marine Fisheries Research Institue, Mangalore - 575 001, India
    Mangalore Research Centre of Central Marine Fisheries Research Institue,
    Mangalore - 575 001, India
  • K Preetha, Mangalore Research Centre of Central Marine Fisheries Research Institue, Mangalore - 575 001, India
    Mangalore Research Centre of Central Marine Fisheries Research Institue,
    Mangalore - 575 001, India

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Issue

Vol. 45 No. 1 (1998)

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

Rohit, P., Pillai, P. P., Gupta, A. C., & Preetha, K. (2011). Fishery and population characteristics of mackerel landed by trawlers along the Dakshina Kannada coast. Indian Journal of Fisheries, 45(1), 21-27. https://epubs.icar.org.in/index.php/IJF/article/view/8760