Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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A study on the species composition according to the size of the entrance and mesh of the pot in the southern coastal waters

남해안 연안 해역 그물통발의 망목과 입구크기에 따른 종조성에 관한 연구

  • Young-Su AN (Institute of Marine Industry, Gyeongsang National University) ;
  • Kwon YU (Training ship, Gyeongsang National University) ;
  • Youn-Hyoung CHO (Training ship, Gyeongsang National University) ;
  • Myungsung KOO (Division of Fisheries Engineering, National Institue Fisheries Science) ;
  • Jong-Kap AHN (Institute of Marine Industry, Gyeongsang National University)
  • 안영수 (경상국립대학교 해양산업연구소) ;
  • 유권 (경상국립대학교 실습선) ;
  • 조윤형 (경상국립대학교 실습선) ;
  • 구명성 (국립수산과학원 수산공학과) ;
  • 안종갑 (경상국립대학교 해양산업연구소)
  • Received : 2024.07.08
  • Accepted : 2024.08.26
  • Published : 2024.08.31
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Abstract

To analyse and review the fishing performance and species composition according to the size of the entrance and mesh of the pot in the southern coastal waters (Tongyeong, Gyeongsangnam-do and Yeosu, Jeollanam-do), the experiment in this study caught one class, eight orders, 17 families, 23 species, 662 fishes, and 99,833 g. The largest number of fish species was Conger myriaster (301 fishes caught) accounting for 45.5%, followed by Octopus vulgaris (152) accounting for 23.0%, Charybdis japonica (45) accounting for 6.8%, Sebastiscus marmoratus (43) accounting for 6.5%, and Parapercis sexfasciata (42) accounting for 6.3%. Conger myriaster, Octopus vulgaris, Charybdis japonica, Sebastiscus marmoratus, and Parapercis sexfasciata accounted for 88.1% of the total catch. For other fish species, 68 fishes of 18 species were caught, accounting for 12.5% of the total. As a result of the total catch survey, the catch rate of Conger myriaster was the highest at 50.9% in B. 22 mm/280 mm. In addition, the average total length per fish increased as the entrance size increased. The weight ratios of Conger myriaster, Octopus vulgaris, and other fish species based on the total weight caught in each pots of the six species of test fishing gear are as follows. A pots 66.6%, 26.5%, 6.9%, B pots 57.2%, 24.5 %, 18.3%, C pots 43.2%, 31.5%, 25.3%, D pots 7.4%, 56.7%, 35.9%, E pots 43.6%, 0%, 56.4%, and F pots 5.0%, 79.6%, 15.4%.

Keywords

Acknowledgement

본 연구는 국립수산과학원 자원관리형 어구어법 연구(R2024007)의 지원으로 수행된 연구입니다.

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