Motorization of traditional craft and its effect on the exploitation of tuna and whitebait anchovy resources at Vizhinjam


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Authors

  • G Gopakumar Motorization of traditional craft and its effect on the exploitation of tuna and whitebait anchovy resources at Vizhinjam
  • P S Sadasiva Sarma Motorization of traditional craft and its effect on the exploitation of tuna and whitebait anchovy resources at Vizhinjam
  • A K Velayudhan Motorization of traditional craft and its effect on the exploitation of tuna and whitebait anchovy resources at Vizhinjam

Abstract

The impact of motorization of traditional craft on two fisheries resources, viz. tunas and whitebait
anchovies, was studied. A conspicuous increase in the annual tuna catch was seen from 1984 due to the
increased effort expended by the motorized craft by using more units of drift nets, hooks and lines than
non-motorized craft. The tuna landing increased from 361 tonnes during the pre-motorization period to
1976 tonnes during the motorization period. On the contrary, the anchovy landing came down from 580
tonnes during the pre-motorization period to 386 tonnes on motorization. A decline was noticed in the effort
expended for whitebait anchovies but the catch rate did not show a steep decline which indicated that the
reduction of effort was not due to the decrease in the catch rate. The shifting over of motorized units to drift
net and hooks and lines operation seems to be the major reason for the decline in the effort of boat siene
and nelholi vala which are the main gears for whitebait anchovies

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Author Biographies

  • G Gopakumar, Motorization of traditional craft and its effect on the exploitation of tuna and whitebait anchovy resources at Vizhinjam
    Motorization of traditional craft and its effect on the
    exploitation of tuna and whitebait anchovy resources
    at Vizhinjam
  • P S Sadasiva Sarma, Motorization of traditional craft and its effect on the exploitation of tuna and whitebait anchovy resources at Vizhinjam
    Motorization of traditional craft and its effect on the
    exploitation of tuna and whitebait anchovy resources
    at Vizhinjam
  • A K Velayudhan, Motorization of traditional craft and its effect on the exploitation of tuna and whitebait anchovy resources at Vizhinjam
    Motorization of traditional craft and its effect on the
    exploitation of tuna and whitebait anchovy resources
    at Vizhinjam

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Issue

Vol. 41 No. 2 (1994)

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

Gopakumar, G., Sarma, P. S. S., & Velayudhan, A. K. (2011). Motorization of traditional craft and its effect on the exploitation of tuna and whitebait anchovy resources at Vizhinjam. Indian Journal of Fisheries, 41(2), 92-99. https://epubs.icar.org.in/index.php/IJF/article/view/10152