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Registros recuperados: 7
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Artes y métodos de pesca desarrollados en el Canal de Beagle, Tierra del Fuego, Argentina. 20
Izzo, A.; Isla, M.; Salvini, L.; Bartozzetti, J.D.; Garcia, J.C.; Roth, R.R.; Prado, L.; Ercoli, R..
This paper deals with the design and application of different fishing gears tested in the Beagle Channel (Tierra del Fuego, Argentina) with the supervision of the technical personnel of INIDEP Fishing Gear Group, the support of the General Directorate of Natural Resources (known today as SRNyAH) of Tierra del Fuego, Antártida e Islas del Atlántico Sur Province and the participation of local fishermen. Activities started as a result of an agreement between the INIDEP and the SRNyAH ratified in 1994. The fishing gear tested, which consist of two paired midwater trawl nets, a gill net, a surrounding net, a bottom lingline, a pot for kingklip and a line of octopus traps may be used in vessels ranging from 30 to 120 HP in coastal waters, channels and inland...
Tipo: Journal Contribution Palavras-chave: Gillnets; Trap nets; Line fishing; Trawl nets; Artisanal fishing; Gillnets; Line fishing; Http://aims.fao.org/aos/agrovoc/c_32431; Http://aims.fao.org/aos/agrovoc/c_4349.
Ano: 2000 URL: http://hdl.handle.net/1834/2538
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Aspectos económicos de la pesquería de caballa (Scomber japonicus) y muestreo de desembarque en el puerto de Mar del Plata. 20
Perrotta, R.G.; Tringali, L.S.; Izzo, A.; Boccanfuso, J.; López, F.; Macchi, G.J..
Movements pattern records of the Mar del Plata inshore fishing fleet during the 1997/98 and 1998/99 chub mackerel fishing seasons (October-January) allowed to observe that there is coincidence between the decrease of the 1983-1997 catches with respect to years previous to the 1975/76 "critical season" and a reduction of the inshore fleet fishing grounds which modifies accessibility of the fleet to the chub mackerel schools. Biostatistical and gonadal development results obtained in the Mar del Plata area (i.e., presence of adults during almost the whole fishing season which overlaps with the spawning season) do not differ significantly from those obtained during previous fishing seasons. As recommended in previous papers, chub mackerel fishing operations...
Tipo: Journal Contribution Palavras-chave: Catch statistics; Biological sampling; Fishing grounds; Population structure; Costs; Population structure; Fishing grounds; Costs; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_2947; Http://aims.fao.org/aos/agrovoc/c_1922.
Ano: 2000 URL: http://hdl.handle.net/1834/2542
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Características de la red de cerco "tipo lámpara" y algunos comentarios sobre la flota que la utiliza en la pesca de caballa. 20
Izzo, A.; Boccanfuso, J..
The composition of the fleet is analyzed. The boats range 50-200 HP of engine and have 9-16 m in length overall. Most of the boats have been improving their equipment (echosounders, new engines) since 1980. An inverse relationship was found between sea surface temperature and CPUE as measured by mackerel catch permit time spent on fishing gounds. Yields are negligible over 20°C with a optimum of 20°C.
Tipo: Journal Contribution Palavras-chave: Buoyancy floats; Fishing effort; Surface temperature; Ballast; Fishing effort; Fishing effort; Fishing effort; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_24027.
Ano: 1993 URL: http://hdl.handle.net/1834/2573
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Experiencias de selectividad en los copos de las redes de arrastre y desarrollo en dispositivos selectivos con grillas en la pesquería Argentina. 20
Ercoli, R.; Izzo, A.; Salvini, L.; Garcia, J.C.; Bartozzetti, J.D.; Roth, R.R..
Major results and difficulties which resulted from experiences in species and per size selectivity for the Argentine fishery are described. Codend selectivity and grid sorting devices trials were carried out. The use of grids not only reduced by-catch of hake in the shrimp fishery but also improved juveniles selectivity in the hake fishery as compared to mesh selectivity. No changes in fishing gears or in fishing manoeuvres were necessary. It was concluded that, to achieve a better rational exploitation of fishing resources, it is necessary to enhance selectivity of fishing gears. Deeper knowledge and further training of crews on Argentine fleets is also encouraged.
Tipo: Book Section Palavras-chave: Gear selectivity; Trawl nets; Mesh selectivity; Gadoid fisheries; Gear research.
Ano: 2001 URL: http://hdl.handle.net/1834/2590
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Influencia de la cantidad de captura en la selectividad de mallas diamante y cuadrada en redes de arrastre para la merluza común (Merluccius hubbsi) e implicancias sobre el potencial de descarte 20
Ehrhardt, N.M.; Ercoli, R.; Garcia, J.C.; Bartozzetti, J.D.; Izzo, A..
The hake, Merluccius hubbsi, fishery is the most important amongst the argentinean demersal fisheries. Fishery management schemes have been adopted to control high discard levels of undersized fish historically observed in the fishery. Controls have consissted in establishing closed areas to fishing and implementation of minimum mesh size in bottom trawls to allow escapement of fish less than 33 cm in length. Offical fishery regulations establish a 120 mm inside codend mesh size in all hake traws. This work reports on the dynamics of hake selection in bottom trawls as a function of the relative abundance of the resource as well as loading levels imposed on the fishing gear. The analyses include the response to selection by square mesh panels attached to...
Tipo: Journal Contribution Palavras-chave: Mesh selectivity; Trawl nets; Bottom trawls; Discards.
Ano: 1996 URL: http://hdl.handle.net/1834/1969
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Investigaciones sobre selectividad de merluza de cola Macruronus magellanicus con red de arrastre de fondo 20
Ercoli, R.; Mituhasi, T.; Izzo, A.; García, J.C.; Bartozzetti, J.D..
The Patagonian grenadier Macruronus magellanicus fishery reached the maximum exploitation in the argentine fishery in 1988 with a catch of 154,960 t, decreasing gradually in the current decade. Statistical data confirm this trend and consider a total catch of22,796,3 t for 1995. The regulations establish a minimum of 120 mm inside codend mesh size for demersal species in Argentine sea. Hoki,in relation to the fishing gear, shows a semipelagic behaviour, but no selectivity trials were made at the moment. The present report presents the selectivity results obtained with rough bottom trawl Engel net with a double braided PE twine codend and 120 mm mesh size.Except the codend, it is the gear normally used by INIDEP to evaluate demersal resources. The logistic...
Tipo: Journal Contribution Palavras-chave: Mesh selectivity; Bottom trawls; Gadoid fisheries.
Ano: 1998 URL: http://hdl.handle.net/1834/5785
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Manual técnico del dispositivo para el escape de juveniles de peces en las redes de arrastre DEJUPA aplicado a la merluza. 20
Ercoli, R.; Salvini, L.; Garcia, J.C.; Izzo, A.; Roth, R.R.; Bartozzetti, J.D..
This Technical Manual has been developed to frame, assemble and apply the single grid sorting device (DEJUPA). It is addressed to professionals, technicians in fishing gears, skippers, owners and fishermen. The Manual presents three DEJUPA sizes in function of the main engine power: less than 300 HP, between 300 and 800 HP and more than 800 HP.
Tipo: Journal Contribution Palavras-chave: Trawl nets; Gear selectivity.
Ano: 2000 URL: http://hdl.handle.net/1834/2539
Registros recuperados: 7
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