Assessing impact of stingray gill net fishery to bycatch population around Bidong Island Malaysia

Nur Arina Hayati Mohidin, . and Sukree Hajisamae, . and Maizah M. Abdullah, . and Mazlan Hashim, . and Sairatul Dahlianis Ishak, . and Hisam Fazrul, . Assessing impact of stingray gill net fishery to bycatch population around Bidong Island Malaysia. pp. 23-36. ISSN 2672-7226

This study assessed the bycatch composition around Bidong Island Malaysia and factors affecting its assemblages. Bycatch samples were collected monthly from January to December 2018 with supplementary samplings in February and October 2019. A total of 648 individuals of bycatch from 15 fish species were collected which accounted for 84.2 of the total catch. The most dominant species were Alectis India Rachycentron canadum and Epinephelus areolatus. The abundance of bycatch varied significantly between seasons (P0.05) whereas the species richness of the bycatch was not affected by season depth and interaction of season and depth (P0.05). The most abundant bycatch was found at a depth of 20 m in moderate rainy and rainy seasons. The non-metric multidimensional scaling ordination clearly separated the three major groups of the community structure of bycatch based on depth but not season. It is therefore concluded that season affected bycatch abundance and conversely depth influenced the community structure of the bycatch from stingray gillnet.

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Abstract

This study assessed the bycatch composition around Bidong Island Malaysia and factors affecting its assemblages. Bycatch samples were collected monthly from January to December 2018 with supplementary samplings in February and October 2019. A total of 648 individuals of bycatch from 15 fish species were collected which accounted for 84.2 of the total catch. The most dominant species were Alectis India Rachycentron canadum and Epinephelus areolatus. The abundance of bycatch varied significantly between seasons (P0.05) whereas the species richness of the bycatch was not affected by season depth and interaction of season and depth (P0.05). The most abundant bycatch was found at a depth of 20 m in moderate rainy and rainy seasons. The non-metric multidimensional scaling ordination clearly separated the three major groups of the community structure of bycatch based on depth but not season. It is therefore concluded that season affected bycatch abundance and conversely depth influenced the community structure of the bycatch from stingray gillnet.

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Item Type:	Article
AGROVOC Term:	Stingray
AGROVOC Term:	Rays (fish)
AGROVOC Term:	Islands
AGROVOC Term:	Bycatch
AGROVOC Term:	Catch composition
AGROVOC Term:	Gillnets
AGROVOC Term:	Impact assessment
AGROVOC Term:	Dominant species
AGROVOC Term:	Rachycentron canadum
AGROVOC Term:	Epinephelus areolatus
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/10749

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