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Title: | 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: | Amarasinghe, U.S. Wickramaratne, I.U. Wijeyaratne, M.J.S. |
Issue Date: | 2011 |
Publisher: | Sri Lanka Association for Fisheries and Aquatic Resources |
Citation: | US Amarasinghe, IU Wickramaratne, MJS Wijeyaratne (2011) 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: 11-26. |
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). |
URI: | http://repository.kln.ac.lk/handle/123456789/4389 |
ISSN: | ISSN 1391-2038 |
Appears in Collections: | Zoology |
Files in This Item:
File | Description | Size | Format | |
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vol16.11-26.pdf | 447.25 kB | Adobe PDF | View/Open |
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