Lizardfish fishery, biology and population dynamics of Saurida undosquamis (Richardson) off Visakhapatnam


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Authors

  • U Rajkumar Central Marine Fisheries Research Institute, Kochi-14, India
  • S Sivakami Central Marine Fisheries Research Institute, Kochi-14, India
  • K Narayana Rao Central Marine Fisheries Research Institute, Kochi-14, India
  • H Jose Kingsly Central Marine Fisheries Research Institute, Kochi-14, India

Abstract

The average annual estimated catch of lizardfishes off Visakhapatnam is 229 t, which formed 5.3% of the total landings during the period 1990-2001. Five species of lizardfishes are landed of which, Saurida undosquamis and S. tumbil are the dominant and contributed 88% to the total lizardfish landings of small trawlers. The fishery, biology and some aspects of population dynamics of S. undosquamis are studied. The estimated asymptotic length (L ) and growth constant (K) in S. undosquamis are 395 mm and 0.31 year –1 respectively. The fish attained maturity at 230 mm, with spawning period extending from October to March. The estimated mortality rates Z, F, and M in the species are 1.81, 1.05 and 0.76 respectively. The exploitation rate (E) of S.undosquamis is 0.58.

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Author Biographies

  • U Rajkumar, Central Marine Fisheries Research Institute, Kochi-14, India
    Central Marine Fisheries Research Institute, Kochi-14, India
  • S Sivakami, Central Marine Fisheries Research Institute, Kochi-14, India
    Central Marine Fisheries Research Institute, Kochi-14, India
  • K Narayana Rao, Central Marine Fisheries Research Institute, Kochi-14, India
    Central Marine Fisheries Research Institute, Kochi-14, India
  • H Jose Kingsly, Central Marine Fisheries Research Institute, Kochi-14, India
    Central Marine Fisheries Research Institute, Kochi-14, India

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Issue

Vol. 50 No. 2 (2003)

Section

Articles

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How to Cite

Rajkumar, U., Sivakami, S., Rao, K. N., & Kingsly, H. J. (2011). Lizardfish fishery, biology and population dynamics of Saurida undosquamis (Richardson) off Visakhapatnam. Indian Journal of Fisheries, 50(2), 149-156. https://epubs.icar.org.in/index.php/IJF/article/view/7405