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Registros recuperados: 19
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Approche de la dynamique de stocks accessoires ArchiMer
Moguedet, Philippe.
For a few years now, the landings from the Lorient's industrial fleet have been continually increasing (32,000 tons in 1980, 56,000 tons in 1985). This fleet practices a multispecific exploitation of the international fishery of the west and north of Scotland. The rock salmon (Pollachius virens) is the fleets' target species, its catches of other gadidae are considered secondary. Two of the catches, those of the blue ling (Molva dypterygia) and the ling (Molva molva) have been advancing since the beginning of the decade and in 1985 represented 21% of the total amount in quantity and value landed by the industrial fleet. The objective of this study is to asses the status of these ling resources and examine whether their exploitation can, in the short term,...
Tipo: Text Palavras-chave: Stock dynamics; By catch; Ling; Molva spp; Industrial fleet; Lorient; Brittany; Gadidés; Biologie; Dynamique des stocks; Flottilles industrielles; Lorient; Bretagne; Molva spp; Lingue; Stock accessoire.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/1988/these-2310.pdf
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Caracterización del proceso de descarte de merluza (Merluccius hubbsi) en la flota de buques congeladores y factorías. Resultados preliminares a partir de los datos recolectados por observadores del INIDEP en seis mareas realizadas entre agosto y diciembre de 1995. OceanDocs
Cañete, G.R.; Dato, C.V.; Villarino, M.F..
Pursuant to SAGyP resolution No. 814/93, during August-December 1995, six INIDEP Fishery Observers trips on board of processing vessels of the Argentine fleet were carried out. They represented 256 navigation days, 232 effective fishing days, 725 fishing trawls and 2,245 trawling hours. Data measured on board were compared to those reported in the fishing log corresponding to the same cruise and submitted to the DNPyA by the Skipper. Catches observed and reported differ by 3985,7 t (28.2. ), with a maximum difference of 1,200 t in a single cruise. In the case of trawling hours, an important fluctuation of values was observed and, in two cases, the number of hours declared exceeded those actually performed (111 and 72). In the other four cruises, between 3...
Tipo: Journal Contribution Palavras-chave: Factory ships; Fishery surveys; Research programmes; By catch; Catch/effort; Fish catch statistics; Gadoid fisheries; Factory ships; Http://aims.fao.org/aos/agrovoc/c_10732.
Ano: 2000 URL: http://hdl.handle.net/1834/2535
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Dinámica y manejo de la captura incidental de peces en la pesquería del langostino patagónico (Pleoticus muelleri) OceanDocs
Góngora, M.E..
This work characterizes the composition and dynamics of the incidental catch in the patagonian shrimp (Pleoticus muelleri) fishery, with special emphasis on the bycatch of common hake (Merlucius hubbsi). The Observer Program coordinated by the Chubut Province (Argentina) and used to monitor the fishery is evaluated. The factors that explain the variability of hake bycatch rates are analyzed, different statistical estimators are evaluated and possible strategies for controlling bycatch are discussed. The study is centered on the double-otter-trawl freezers, responsible for 75 percent of the Argentine shrimp landings. This fleet operates in San Jorge Gulf, in waters under the jurisdiction of the provinces of Chubut and Santa Cruz, and in waters of the...
Tipo: Theses and Dissertations Palavras-chave: Shrimp fisheries; Stock assessment; Fishery management; By catch; Catch composition.
Ano: 2011 URL: http://hdl.handle.net/1834/4190
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Diversidad, densidad y biomasa de la macrofauna componente de los fondos de pesca 'camaron-langostino', frente a Mar del Plata, Argentina (1998-1999) OceanDocs
Scelzo, M.A.; Martínez Arca, J.; Lucero, N.M..
The seasonal variation of diversity, density and biomass of the main species of the bentho-demersal fauna present in the 'prawn-shrimp' fishing grounds in the coastal sector between Cabo Corrientes and Torreon del Monje, Mar del Plata (38 degree S-57 degree W), Argentina, was studied. The quali-quantitative information obtained allowed to know the fluctuations of the bentho-demersal components of the community. The study included the annual cycle between April 1998-April 1999. Monthly samples at different depths (4-10 m) and distance from the coast (500 and 1,000 m) were obtained in two stations using a bottom net. Sampling in each station lasted 15 minutes and covered 2,400 m super(2). Number of specimens and weight for each species were recorded....
Tipo: Journal Contribution Palavras-chave: Zoobenthos; Fishing grounds; Biomass; Abundance; Littoral zone; Species diversity; By catch; Biomass; Zoobenthos; Fishing grounds; Species diversity; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_15487; Http://aims.fao.org/aos/agrovoc/c_2947; Http://aims.fao.org/aos/agrovoc/c_33954.
Ano: 2002 URL: http://hdl.handle.net/1834/1700
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Engineering development of flexible selectivity grids for Nephrops ArchiMer
Loaec, Henri; Morandeau, Fabien; Meillat, Marc; Davies, Peter.
There are different approaches to selectivity, including increasing cod-end mesh size, square mesh panels and rigid grids. Selectivity grids have traditionally been produced to be as rigid as possible to maintain spacing but this can result in heavy, expensive grids, handling problems and brittleness. This paper presents an alternative approach using flexible polyurethane polymers to produce lightweight inexpensive grids with much improved damage tolerance and ease of handling, which also possess interesting selectivity characteristics. The material selection, design and development tests are described first, then preliminary sea trial results are presented. A flexible grid with a 20 mm spacing between bars performed successfully and enabled a reduction in...
Tipo: Text Palavras-chave: Damage resistance; Polyurethane; Nephrops; Grid; Size selection; By catch; Selectivity.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1690.pdf
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Estudio sobre la calidad y utilización de algunas especies de pescado demersal de tamaño pequeño en el Ecuador OceanDocs
Montaño, R.; Bostock, T.; Andrade, B..
In the paper presented, comparisons are made between 12 species of small demersal fish (less than 30 cm O.L.) commonly found in the shrimp by-catch. Each species is described, estimates are made as to their relative abundance and fishery and complete data are presented on processing: filets, deboned minces. Taste panel work was carried out on cooked fillets as well as products made from the deboned mince and chemical analyses were made on all the species. The possibility of future increased utilization of these species is discussed.
Tipo: Journal Contribution Palavras-chave: Demersal fisheries; By catch; Shrimp fisheries; Processing fishery products; Organoleptic properties; Demersal fisheries; Organoleptic properties; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_5399.
Ano: 1985 URL: http://hdl.handle.net/1834/3156
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Evaluación experimental de dispositivos excluidores de fauna acompañante en redes de arrastre para camarón de aguas someras en el Pacífico colombiano OceanDocs
Girón, A.; Rico, F.; Rueda, M..
Se evaluaron los efectos de la introducción de dispositivos excluidores de fauna acompañante en la flota de arrastre camaronera de aguas someras del Pacífico colombiano, mediante un experimento de pesca que involucró al sector pesquero industrial. Siguiendo las condiciones de pesca comercial, seevaluó el dispositivo excluidor de tortugas (DET), el dispositivo excluidor de peces "Ojo de pescado" (OP) y la combinación de ambos dispositivos (DET+OP). Las variables usadas para evaluar los efectos de los dispositivos sobre los distintos componentes de la captura [captura objetivo (CO), captura incidental (CI) y el descarte (D)], fueron la abundancia relativa y la distribución de tallas de los individuos. Los efectos de los factores tipo de dispositivo, áreas de...
Tipo: Journal Contribution Palavras-chave: Trawl nets; By catch.
Ano: 2010 URL: http://hdl.handle.net/1834/4021
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Guía técnica para la identificación de invertebrados epibentónicos asociados a los bancos de vieira patagónica (Zygochlamys patagonica)en el Mar Argentino OceanDocs
Bremec, C.; Marecos, A.; Schejter, L.; Lasta, M.L..
Technical guide to identify epibenthic invertebrates associated to Patagonian scallop (Zygochlamys patagonica)beds in the Argentine Sea, SW Atlantic. A catalogue of the invertebrate species that conform the by-catch of the Patagonian scallop fishery is presented and a descriptive technical note with basic information on the organisms considered is included.
Tipo: Book Palavras-chave: Marine invertebrates; Zoobenthos; Taxonomy; Vernacular names; By catch; Check lists; Scallop fisheries; Taxonomy; Zoobenthos; Http://aims.fao.org/aos/agrovoc/c_7631; Http://aims.fao.org/aos/agrovoc/c_15487.
Ano: 2003 URL: http://hdl.handle.net/1834/2478
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Incidencia de tiburones, rayas, aves, tortugas y mamíferos marinos en la pesquería artesanal con enmalle de superficie en la caleta pesquera de Santa Rosa (Provincia de Santa Elena) OceanDocs
Coello, Dialhy; Herrera, Marco; Calle, Marco; Castro, Rómulo; Medina, Carlos; Chalén, Xavier.
Entre julio de 2009 y diciembre de 2010 se desarrolló el monitoreo de la flota de botes de fibra de vidrio dirigida a la captura de peces pelágicos grandes con enmalle de superficie de 4 y 5” de ojo de malla, que opera en la caleta pesquera de Sta. Rosa a través de observadores científicos a bordo. Se analizó la información sobre la captura incidental de 537 lances de pesca efectuados entre 01°00,00-03°23,00 S y desde 080°50,00-082°30,00 W (35 y 95 millas náuticas frente al perfil costero). Se estableció que las redes utilizadas operaban adecuadamente y que los porcentajes de incidencia de tortugas y mamíferos marinos en la sección de los flotadores es del 82,4 y 69,8 %, respectivamente. Los índices de captura más elevados por grupos fueron para:...
Tipo: Journal Contribution Palavras-chave: By catch; Artisanal fishing; Net fishing; Catch rate; Mortality rate.
Ano: 2010 URL: http://hdl.handle.net/1834/4562
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La Lettre de l'IMROP OceanDocs
IMROP.
Les prises accessoires et les rejets des chalutiers céphalopodiers en activité dans la ZEE mauritanienne: un mal nécessaire ?
Tipo: Other Palavras-chave: By catch.
Ano: 2006 URL: http://hdl.handle.net/1834/1507
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Les prises accessoires de la pêcherie de civelles (Anguilla anguilla) dans l'estuaire de la Loire en 1987 ArchiMer
Guerault, Daniel; Desaunay, Yves; Bellois, Pierre; Grellier, Patrick; Robin, Jean-paul; Robineau, Brigitte.
A survey of the glass-eel fishery in the Loire estuary in 1987 (265 boats, 117 tons gasseel, 13733 fishing trips) showed that 16 fishery species constitute the by-catch (49,3 million individuals, mainly juveniles, among which 98 % consist in flounder, sprat and brown shrimp). The analysis of catches in space and time leads to proposaIs for Iimiting the impact during the last fishing weeks. Taking into account the naturai mortality rates of the concerned juveniles, an attempt is made to estimate the actuai impact of the glasseel fishery, after a delay. Only 10 % of the caught brown shrimps wouid have been recruited in the summer shrimp fishery. Up to 85,5 to 97,6 % of juvenile fishes would have disappeared during the following year by natural mortality.
Tipo: Text Palavras-chave: Anguille; Pêcherie; Prises accessoires; Estuaire; Loire; Eel; Fishery; By catch; Estuary; Loire.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/00120/23102/20951.pdf
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Línea base de conocimiento sobre el estado actual de las tortugas marinas en el Ecuador OceanDocs
Coello, Dialhy; Herrera, Marco.
Como respuesta a la solicitud formulada por La Comisión Permanente del Pacífico Sur a los Puntos Focales Nacionales para desarrollar Consultorías sobre de tortugas marinas en los países del Pacífico Sudeste, el Instituto Nacional de Pesca de Ecuador fue seleccionado para realizar una consultoría nacional con el objetivo establecer una línea base del conocimiento del estado actual de las tortugas en el Ecuador. Entre los principales resultados obtenidos tenemos que el conocimiento sobre las tortugas marinas se ha incrementado en los últimos años debido a la necesidad de cumplir con los diferentes Acuerdos Internacionales relacionados, marco legal nacional favorable y el apoyo que los entes gubernamentales y ONG’s, basados en su importancia ecológica. A...
Tipo: Journal Contribution Palavras-chave: Legal aspects; Socioeconomic aspects; Marketing; Population density; By catch; Tourism; Marine turtles.
Ano: 2011 URL: http://hdl.handle.net/1834/4565
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Obervations on the commercial light fishing operation in Ghana OceanDocs
Quartey, R.; Bannerman, P..
Light fishing operations (LFO) in Ghana is concentrated in the three major coastal municipalities of Greater Accra (Tema), Central (Mumford & Elmina) and Western (Sekondi) Regions; these areas have the port facilities for landing of the catch by the larger inshore vessels that operate the purse seine fishery in Ghana and which predominantly operate the light attraction. Currently there are about 250 registered inshore vessels in the country whose sizes range between 39 – 60 feet , only a small fraction are actually working at the moment due to problems with spare parts and operations. Light attraction is the technique of aggregating fish by artificial light; and light fishing is the process of fishing the attracted fish by hooking, gill-netting or by...
Tipo: Journal Contribution Palavras-chave: Lenght frequency; Body length; By catch; Fishery economics; Pelagic fisheries; Size composition; Thermocline; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 2005 URL: http://hdl.handle.net/1834/1267
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Pesca exploratoria del recurso dorado (Coryphaena hippurus) frente a la costa ecuatoriana durante marzo de 2008 OceanDocs
Herrera, M.; Coello, D.; Peralta, M.; Cajas, J.; Castro, R.; Elías, E.; Chavarría, J..
Del 2 al 14 de marzo de 2008 se realizó el Crucero T08/03/01 durante el cual se efectuaron nueve lances de pesca entre 01°24.5’ N - 03°12.0’ S y entre 081°08.6’ W - 082°56.1’ W, empleando un palangre de superficie doradero. Oceanográficamente se determinó la profundización de la termoclina lo cual favoreció el ingreso de ATS en toda la columna de agua hasta los 40 m de profundidad, lo que explicaría las bajas capturas de dorado obtenidas. El índice de abundancia determinó una mayor efectividad de los anzuelos No. 4 y 5 en cuanto a número de organismos por lance, mientras que en relación a la talla no se observan diferencias en la captura para todos los anzuelos. La pesca incidental tuvo una incidencia mínima en lo referente a tiburones, rayas y peces óseos...
Tipo: Journal Contribution Palavras-chave: Exploratory fishing; By catch; Feed composition; Longlining; Cruise reports.
Ano: 2010 URL: http://hdl.handle.net/1834/4798
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Pesca exploratoria del recurso dorado (Coryphaena hippurus) frente a la costa ecuatoriana durante marzo de 2010 OceanDocs
Herrera, M.; Coello, D.; Peralta, M.; Elías, E.; Cajas, J.; Castro, R.; Pesantes, F.; Chavarría, J..
Del 9 al 21 de marzo de 2010, se realizó el Crucero T10/03/01 durante el cual se efectuaron 10 lances de pesca entre 01º21.39' N-03º 02.55' S y entre las longitudes 080º 32.20' W-082º 57.08' W, empleando un palangre de superficie doradero. En los lances realizados frente a Esmeraldas y Manabí, se registraron las mayores capturas, con especímenes con mayor talla y peso promedio, con una temperatura superficial promedio de 27 ºC y termoclina ubicada entre los 10 y 50 m de profundidad con la isoterma de 20 ºC, próxima a la profundidad de cala de la línea de pesca. Hacia el sur (lances 7 al 10), ubicados frente al sur de Manabí, Península de Santa Elena y Golfo de Guayaquil. Las capturas estuvieron representadas por especímenes con talla y peso promedio...
Tipo: Journal Contribution Palavras-chave: Exploratory fishing; Cruise reports; Biological sampling; Longlining; Thermocline; Feed composition; Stomach content; By catch.
Ano: 2010 URL: http://hdl.handle.net/1834/4799
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Pesca objetivo e incidental de barcos palangreros extranjeros entre agosto 2008 y marzo 2009 OceanDocs
Pacheco, J.L..
El presente informe resume los resultados de la pesca objetivo e incidental realizada por tres barcos palangreros extranjeros, en el periodo agosto 2008 y marzo 2009. La captura total registrada fue 782.81 de las cuales 75,3% correspondieron a pesca objetivo y 24,7% a pesca incidental. El pez espada Xiphias gladius represento el 61,8% en las capturas de pesca objetivo y el tiburón aguado Prionace glauca el 69,7% en pesca inciden¬tal. Las áreas de pesca de mayor concentración se distribuyeron en aguas internacionales frente a las costas de Peru y Chile entre los 18° y 29° Latitud Sur, y 86° y 106° Longitud Oeste. El arte de pesca utilizado fue el longline o palangre de media agua con una longitud máxima de 120 km y 1500 anzuelos tipo "J". Las tallas menores...
Tipo: Journal Contribution Palavras-chave: By catch; Longlining; Fishing gear.
Ano: 2010 URL: http://hdl.handle.net/1834/4840
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The occurrence and distribution of dolphins in Zanzibar, Tanzania, with comments on the differences between two species of tursiops OceanDocs
Amir, O.A.; Jiddawi, N.S.; Berggren, P..
Incidental catches (bycatch) in gillnet fisheries off Zanzibar (Unguja Island), as a source of mortality among several species of dolphins, were reported in a questionnaire survey conducted in 1999. As a follow-up to that survey, from January 2000 to August 2003, we monitored the incidental catches of dolphins collected from 12 fish landing sites. Six species of dolphins were recorded from 143 specimens retrieved from bycatches in drift- and bottom set gillnets. Of these, 68 (48%) were Indo-Pacific bottlenose dolphins (Tursiops aduncus), 44 (31%) spinner dolphins (Stenella longirostris), 12 (8%) Risso’s dolphins (Grampus griseus), 11 (8%) Indo-Pacific humpback dolphins (Sousa chinensis), 6 (4%) Pan-tropical spotted dolphins (Stenella attenuata) and 2 (1%)...
Tipo: Journal Contribution Palavras-chave: By catch; Distribution; Gillnets; Distribution; Http://aims.fao.org/aos/agrovoc/c_35773.
Ano: 2005 URL: http://hdl.handle.net/1834/1136
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Una nota sobre la importancia de la pesca acompañante del camarón en el Golfo de Guayaquil OceanDocs
Martínez, J..
Reporte del estudio de la pesca acompañante del camarón para el Golfo de Guayaquil, para los meses de mayo, junio y julio de 1986. Se dan a conocer las diferentes familias y/o especies para las categorías camarón, pescado bueno y basura; con sus respectivas tasas de captura y porcentajes de ocurrencia. La razón fue 1:2.18:13.84 kg.h-1 variando 1:2.75:12.60 kg.h-1 determinándose que entre 13%-17% es aprovechado para consumo humano directo y entre 77%-81% es aprovechado. Hipotéticamente se calculó para el total de la flota camaronera (240 barcos), que apróximadamente de 11,000 y 36,000 t son aprovechadas anualmente y entre 70,000 y 190,000 t son devueltas al mar.
Tipo: Journal Contribution Palavras-chave: By catch; Shrimp fisheries.
Ano: 1986 URL: http://hdl.handle.net/1834/3150
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Varamiento de cachalotes (Physeter macrocephalus) (Cetacea: Physeteridae) en la costa ecuatoriana por interacción con pesquerías OceanDocs
Haase, B.; Félix, F..
El objetivo del presente trabajo es dar a conocer los varamientos de cachalotes en la costa ecuatoriana y mostrar que en algunos casos tales hechos tuvieron una relación directa con actividades pesqueras.
Tipo: Journal Contribution Palavras-chave: Marine mammals; Protected resources; Stranding; Mortality; By catch; Mortality; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 1996 URL: http://hdl.handle.net/1834/2192
Registros recuperados: 19
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