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| Format: | Artículo científico |
| Language: | en |
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Pontificia Universidad Católica de Valparaíso
2007
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| Online Access: | https://www.redalyc.org/articulo.oa?id=45635107 |
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| _version_ | 1866817125326258176 |
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| author | Juan P. Seco Pon |
| author_facet | Juan P. Seco Pon |
| contents | Bycatch of the piked dogfish Squalus acanthias Linné, 1758 (Chondrichthyes, Squalidae) in semi-pelagic longline fisheries at the Patagonian Shelf Juan P. Seco Pon Patricia A. Gandini Ciencias de la Tierra semi bycatch piked dogfish pelagic longline Patagonian Shelf The piked dogfish Squalus acanthias is part of the bycatch of several South American longline fisheries,although in Argentina, it was only reported in the bycatch of benthic and demersal fisheries operating bottom nets. Thiscommunication represents the first record of S. acanthias bycatch in a commercial semi-pelagic longline fishery withinArgentinean waters. In October-November 2005, 185 piked dogfish were captured (122 females and 63 males). The estimatedmean catch rate was 0.37 sharks/1000 hooks (544,320 hooks deployed). Nearly half of the captured females andover 50% of captured males were morphometrically mature. The piked dogfish bycatch could have been influenced bythe use of the Argentine shortfin squid Illex argentinus as bait; this squid is part of the sharks natural diet. Although S.acanthias is abundant in the region, we believe that the bycatch species could be more vulnerable than the targeted onessince the signs indicating a declining population of non-target species in commercial catches and collapses in bycatchpopulations go unnoticed. 2007 artículo científico 0716-1069 https://www.redalyc.org/articulo.oa?id=45635107 en http://www.redalyc.org/revista.oa?id=456 Investigaciones Marinas application/pdf Pontificia Universidad Católica de Valparaíso Investigaciones Marinas (Chile) Num.1 Vol.35 |
| format | Artículo científico |
| id | redalyc_45635107 |
| language | en |
| publishDate | 2007 |
| publisher | Pontificia Universidad Católica de Valparaíso |
| spellingShingle | Bycatch of the piked dogfish Squalus acanthias Linné, 1758 (Chondrichthyes, Squalidae) in semi-pelagic longline fisheries at the Patagonian Shelf Juan P. Seco Pon Ciencias de la Tierra semi bycatch piked dogfish pelagic longline Patagonian Shelf Bycatch of the piked dogfish Squalus acanthias Linné, 1758 (Chondrichthyes, Squalidae) in semi-pelagic longline fisheries at the Patagonian Shelf Juan P. Seco Pon Patricia A. Gandini Ciencias de la Tierra semi bycatch piked dogfish pelagic longline Patagonian Shelf The piked dogfish Squalus acanthias is part of the bycatch of several South American longline fisheries,although in Argentina, it was only reported in the bycatch of benthic and demersal fisheries operating bottom nets. Thiscommunication represents the first record of S. acanthias bycatch in a commercial semi-pelagic longline fishery withinArgentinean waters. In October-November 2005, 185 piked dogfish were captured (122 females and 63 males). The estimatedmean catch rate was 0.37 sharks/1000 hooks (544,320 hooks deployed). Nearly half of the captured females andover 50% of captured males were morphometrically mature. The piked dogfish bycatch could have been influenced bythe use of the Argentine shortfin squid Illex argentinus as bait; this squid is part of the sharks natural diet. Although S.acanthias is abundant in the region, we believe that the bycatch species could be more vulnerable than the targeted onessince the signs indicating a declining population of non-target species in commercial catches and collapses in bycatchpopulations go unnoticed. 2007 artículo científico 0716-1069 https://www.redalyc.org/articulo.oa?id=45635107 en http://www.redalyc.org/revista.oa?id=456 Investigaciones Marinas application/pdf Pontificia Universidad Católica de Valparaíso Investigaciones Marinas (Chile) Num.1 Vol.35 |
| title | Bycatch of the piked dogfish Squalus acanthias Linné, 1758 (Chondrichthyes, Squalidae) in semi-pelagic longline fisheries at the Patagonian Shelf |
| topic | Ciencias de la Tierra semi bycatch piked dogfish pelagic longline Patagonian Shelf |
| url | https://www.redalyc.org/articulo.oa?id=45635107 |