Analysis on the body size selectivity for multi-species of discarding juvenile fishes in the bottom trawl
4
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Discarding juvenile fishes under girth 16 cm nearly equal to inner perimeter of codend mesh size collected by a cover net method in bottom trawl. The body size of the main five species (mackerel, horse mackerel, sea bream, melon seed and black throat seaperch) was measured for their body length, girth, weight, height and width and analyzed size selectivity. Frequency of penetrating fish as retention in a cover net was less than 40% of total number of juvenile discarding fish. The most of body length or girth of five species were significantly different between in the codend and in the cover net. The 50% selection girth in the cover net ranged 8-11 cm were smaller than those in the codend ranged 9-13 cm by the species respectively. The 50% selection body length was significantly related with the ratio of body height (H) by body width (W) both for in the codend or in the cover net while 50% selection girth was not significantly related with H/W. Furthermore 50% selection fish size by fish species between in the codend and in the cover net was not significantly different both in body length or girth. Therefore, the girth selectivity represented possibly as one unique value regarding fish body shape was considered as more useful method for multi-species catch in trawl.
Abstract
Discarding juvenile fishes under girth 16 cm nearly equal to inner perimeter of codend mesh size collected by a cover net method in bottom trawl. The body size of the main five species (mackerel, horse mackerel, sea bream, melon seed and black throat seaperch) was measured for their body length, girth, weight, height and width and analyzed size selectivity. Frequency of penetrating fish as retention in a cover net was less than 40% of total number of juvenile discarding fish. The most of body length or girth of five species were significantly different between in the codend and in the cover net. The 50% selection girth in the cover net ranged 8-11 cm were smaller than those in the codend ranged 9-13 cm by the species respectively. The 50% selection body length was significantly related with the ratio of body height (H) by body width (W) both for in the codend or in the cover net while 50% selection girth was not significantly related with H/W. Furthermore 50% selection fish size by fish species between in the codend and in the cover net was not significantly different both in body length or girth. Therefore, the girth selectivity represented possibly as one unique value regarding fish body shape was considered as more useful method for multi-species catch in trawl.
참고문헌 (29)
- David Beutel, "Bycatch reduction in the Northeast USA directed haddock bottom trawl fishery", Fisheries Research, 94(2), pp.190~198 (2008), Elsevier BV[DOI]
- J. Carol, "Gillnet selectivity and its relationship with body shape for eight freshwater fish species", Journal of Applied Ichthyology, 23(6), pp.654~660 (2007), Wiley[DOI]
- The development of international guidelines on bycatch management and reduction of discards, "Chopin F", ICES, ~, pp.CM 2009 (2009), M:01
- 조삼광, "트롤 탈출장치의 개발에 관한 연구", 수산해양기술연구, 41(4), pp.241~247 (2005), 한국수산해양기술학회
- Daliri M, "Length-weight and length-girth relationships, relative weight and relative condition factor of four Commercial fish species of northern Persian Gulf", Ann Rev & Res Biol, 2, pp.15~26 (2012)
- Glass CW, "Studies on the use of visual stimuli to control fish escape from codend. Ⅱ. The effect of a black tunnel on the reaction behaviour of fish in otter trawl codends", Fish Res, 23, pp.165~174 (1995)
- Bent Herrmann, "The influence of twine thickness, twine number and netting orientation on codend selectivity", Fisheries Research, 145, pp.22~36 (2013), Elsevier BV[DOI]
- L. A. Jawad, "Relationship between opercular girth, maximum girth and total length of fishes caught in gillnets in the estuarine and lower river sections of Shatt al-Arab River (Basrah Province, Iraq)", Journal of Applied Ichthyology, 25(4), pp.470~473 (2009), Wiley[DOI]
- Emma G. Jones, "The influence of towing speed and fish density on the behaviour of haddock in a trawl cod-end", Fisheries Research, 94(2), pp.166~174 (2008), Elsevier BV[DOI]
- 김용해, "Bycatch Reduction by Experimental Shaking Codend Attached with Canvas in a Bottom Trawl", Fisheries and Aquatic Sciences, 18(3), pp.325~332 (2015), 한국수산과학회
- 김용해, "Analysis of body size selectivity of by-catch using the cover net method for a shrimp beam trawl", 수산해양기술연구, 51(2), pp.171~178 (2015), 한국수산해양기술학회[DOI]
- Yong-Hae KIM, "Herding and escaping responses of juvenile roundfish to square mesh window in a trawl cod end", Fisheries Science, 74(1), pp.1~7 (2008), Springer Science and Business Media LLC[DOI]
- MacLennan D. N., "Fishing gear selectivity : an overview", Fish Res, 13, pp.201~204 (1992)
- Mendes B, "Relationships between opercula girth, maximum girth and total length of fish species caught in gillnet and trammel net selectivity surveys off the Portuguese coast", J Appl Icthyol, 22, pp.209~213 (2006)
- Miler RB, "Estimating the size-selection curves of towed gears, traps, nets and hooks", Rev Fish Biol Fish, 9, pp.89~116 (1999)
- Mituhasi T, "Estimating codend selectivity and fish escapement from a cover net of an insufficiently small mesh size", Fish Sci, 66, pp.327~333 (2000)
- O'Neill FG, "PRESEMO-a predictive model of codend selectivity-a tool for fishery managers", ICES J Mar Sci, 64, pp.1558~1568 (2007)[DOI]
- O’Neill FG, "The effect of cover mesh size and cod-end catch size on cod-end selectivity", Fish Res, 28, pp.291~303 (1996)
- Özekinci U, "Determination of the Selectivity of Monofilament Gillnets Used for Catching the Annular Sea Bream (Diplodus annularis L., 1758) by Length-Girth Relationships in İzmir Bay (Aegean Sea)", Turk J Vet Anim Sci, 29, pp.375~380 (2005)
- Özbilgin H, "The seasonal variation of trawl cod-end selectivity and the role of learning in mesh penetration behaviour of fish", PhD, pp.1998
- Hüseyin Özbilgin, "Comparison of the selectivities of double and single codends", Fisheries Research, 63(1), pp.143~147 (2003), Elsevier BV[DOI]
- Michael V. Pol, "Selectivity and retention of pollock Pollachius virens in a Gulf of Maine trawl fishery", Fisheries Research, 184, pp.47~53 (2016), Elsevier BV[DOI]
- Antonello Sala, "Is square-mesh better selective than larger mesh? A perspective on the management for Mediterranean trawl fisheries", Fisheries Research, 161, pp.182~190 (2015), Elsevier BV[DOI]
- Antonello Sala, "The influence of twine thickness on the size selectivity of polyamide codends in a Mediterranean bottom trawl", Fisheries Research, 83(2-3), pp.192~203 (2007), Elsevier BV[DOI]
- M.N. Santos, "Length–girth relationships for 30 marine fish species", Fisheries Research, 78(2-3), pp.368~373 (2006), Elsevier BV[DOI]
- Sea Grant, "Fisheries Bycatch- Global issues and creative solutions", 29th Lowell Program and Abstracts, 106~ (2014)
- Konstantinos I. Stergiou, "Length–girth relationships for several marine fishes", Fisheries Research, 60(1), pp.161~168 (2003), Elsevier BV[DOI]
- Wardle CS, "Fish behaviour and fishing gear. In:Behaviour of Teleost Fishes", pp.609~644 (1993), Chapman & Hall
- Manual of methods of measuring the selectivity of towed fishing gears, "Wileman DA", ICES Coop, 126~, pp.Res Rep 215 (1996)