Service provided by artificial reef off Chennai:a case study


203 / 90

Authors

  • E Vivekanandan Central Marine Fisheries Research Institute, Kochi - 682 018
  • S Venkatesan Central Marine Fisheries Research Institute, Kochi - 682 018
  • G MohanRaj Central Marine Fisheries Research Institute, Kochi - 682 018

Abstract

The fisheries service provided by an artificial reef (AR) with a pile size of 450m3 deployed at 20 m depth off Chinnandikuppam, 20 km south of Chennai wasassessed. In 16 months, the fishermen expended 3843.7 hours of hooks & linefishing in the AR ground and landed 6404 kg. The catch index was 14.2 kg/m3and the total income was Rs. 2,74,000. Compared with the income per hour ofoperation of gillnet fishing in the non-AR grounds (Rs. 52.5 kg/h), the incomewas 36% higher from hooks & line fishing in the AR ground (Rs. 71.3 kg/h).This was possible due to aggregation of high quality fish such as the snappers,emperor and carangids in the AR. Biological investigations on three residentspecies in the AR show that juvenile fish colonise in the initial months afterdeployment, grow to a larger size and spawn in the AR, indicating the service provided by the AR for enhancement of resident fish stocks.

Downloads

Download data is not yet available.

Author Biographies

  • E Vivekanandan, Central Marine Fisheries Research Institute, Kochi - 682 018
    Central Marine Fisheries Research Institute, Kochi - 682 018
  • S Venkatesan, Central Marine Fisheries Research Institute, Kochi - 682 018
    Central Marine Fisheries Research Institute, Kochi - 682 018
  • G MohanRaj, Central Marine Fisheries Research Institute, Kochi - 682 018
    Central Marine Fisheries Research Institute, Kochi - 682 018

Downloads

Issue

Vol. 53 No. 1 (2006)

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

Vivekanandan, E., Venkatesan, S., & MohanRaj, G. (2011). Service provided by artificial reef off Chennai:a case study. Indian Journal of Fisheries, 53(1), 67-75. https://epubs.icar.org.in/index.php/IJF/article/view/6912