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| Format: | Artículo científico |
| Language: | es |
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Universidad de Costa Rica
2008
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| Online Access: | https://www.redalyc.org/articulo.oa?id=44918834033 |
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Table of Contents:
- Estructura de tallas, selectividad y composición específica de las capturas en trampas para peces marinos en el Golfo de California Manuel O. Nevárez-Martínez Alejandro Balmori-Ramírez Everardo Miranda-Mier J. Pablo Santos-Molina Francisco J. Méndez-Tenorio Celio Cervantes-Valle Biología and line hooks Mexico fish traps Size structure, selectivity and specific composition of the catch in traps for marine fish in the Gulf of California. We analyzed the performance of three traps for marine fish between October 2005 and August 2006 in the Gulf of California, Mexico. The performance was measured as difference in selectivity, fish diversity, size structure and yield. The samples were collected with quadrangular traps 90 cm wide, 120 cm long and 50 cm high. Trap type 1 had a 5 x 5 cm mesh (type 2: 5 x 5 cm including a rear panel of 5 x 10 cm; trap 3: 5 x 10 cm). Most abundant in our traps were: Goldspotted sand bass (Paralabrax auroguttatus), Ocean whitefish (Caulolatilus princeps), Spotted sand bass (P. maculatofaciatus) and Bighead tilefish (C. affinis); there was no bycatch. The number of fish per trap per haul decreased when mesh size was increased. We also observed a direct relationship between mesh size and average fish length. By comparing our traps with the authorized fishing gear (hooks-and-line) we found that the size structure is larger in traps. Traps with larger mesh size were more selective. Consequently, we recommend adding traps to hooks-and-line as authorized fishing gear in the small scale fisheries of the Sonora coast, Mexico. Rev. Biol. Trop. 56 (3): 1403-1417. Epub 2008 September 30. 2008 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44918834033 es http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3 Vol.56