Articles
Hook selectivity of Giant Trevally (Caranx ignobilis) and Nakedbreast Trevally (Carangoides gymnostethus) (Carangidae) caught in the hook-and-line fishery off Negombo, Sri Lanka
Authors:
US Amarasinghe ,
University of Kelaniya, LK
About US
Department of Zoology
IU Wickramaratne,
University of Kelaniya, LK
About IU
Department of Zoology
MJS Wijeyaratne
University of Kelaniya, LK
About MJS
Department of Zoology
Abstract
In the present study, an attempt was made to quantify hook selectivity of two carangid species (Caranx ignobilis and Carangoides gymnostethus) which were predominantly caught in the hook-and-line fishery off Negombo, Sri Lanka. As the length frequency data of C. ignobilis and C. gymnostethus recorded by hook size were skewed towards the larger fish, a modification of Baranov-Holt method for gillnet selection was employed. For both species there were positive significant relationships (p<0.001) between the hook size and optimal length while selection range was negatively related to hook size (p<0.001).
DOI: http://dx.doi.org/10.4038/sljas.v16i0.6712
Sri Lanka J. Aquat. Sci. 16 (2011): 11-26
How to Cite:
Amarasinghe, U., Wickramaratne, I. and Wijeyaratne, M., 2014. Hook selectivity of Giant Trevally (Caranx ignobilis) and Nakedbreast Trevally (Carangoides gymnostethus) (Carangidae) caught in the hook-and-line fishery off Negombo, Sri Lanka. Sri Lanka Journal of Aquatic Sciences, 16, pp.11–26. DOI: http://doi.org/10.4038/sljas.v16i0.6712
Published on
20 Mar 2014.
Peer Reviewed
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