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Registros recuperados: 59
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Aire marine protégée, gestion halieutique, diversification et développement local: le cas de la reserve de biosphère du Delta du Saloum (Sénégal) OceanDocs
Sarr, O..
Cette thèse étudie le problème de la gestion des pêches au sein d’une AMP, en tenant compte du système économique global ainsi que des transformations structurelles qui affectent celui ci, et en diversifiant les critères de gestion. Le cas d’étude est la RBDS (Sénégal). Une enquête de terrain montre que la population de cette localité diversifie ses activités essentiellement entre l’agriculture, la pêche et le tourisme. Une analyse économétrique indique que la démographie, la sécheresse et la baisse du prix de l’arachide sur le marché mondial sont les principales causes de la crise agricole dans la région. Cette crise favorise la diversification vers la pêche. Un modèle théorique étudiant ce processus montre qu’il conduit la pêche à l’équilibre de libre...
Tipo: Theses and Dissertations Palavras-chave: Marine environment; Fishery management; Ecology; Tourism; Socioeconomic aspects; Fishery resources; Marine environment; Fishery management; Ecology; Tourism; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_7822; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 2005 URL: http://hdl.handle.net/1834/2617
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Aménagement des ressources halieutiques au Sénégal: partenariat et démarche préventive OceanDocs
Ndiaye, O..
Le gouvernement du Sénégal s’est engagé, en élaborant le Plan directeur des pêches en 1998, à mettre en oeuvre « une politique de gestion prudentielle » de la ressource halieutique, conformément au Code de conduite pour une pêche responsable (FAO,1995). D’où l'intérêt d’examiner les contraintes à la conservation et à l’exploitation durable de la ressource et comment lever ces contraintes. La situation des pêches est caractérisée par un état critique de la ressource halieutique du fait de plusieurs facteurs, la surpêche entrant en première ligne. Plusieurs contraintes ont été identifiées. Les principales sont l’absence d'une démarche de planification dans la gestion des ressources halieutiques, le problème de l'appropriation de la réglementation, la...
Tipo: Report Palavras-chave: Fishery management; Fishing; Environmental charts; Fishery oceanography; Fishery regulations; Fishing effort; Fishery statistics; Fishery resources; Fishery management; Fishery oceanography; Fishing; Fishing effort; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_2938; Http://aims.fao.org/aos/agrovoc/c_26950; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 2000 URL: http://hdl.handle.net/1834/1524
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Análisis secuencial de la población de merluza de cola (Macruronus magellanicus)en el atlantico sudoccidental período 1985-1995. OceanDocs
Wöhler, O.C.; Giussi, A.R.; Hansen, J.E..
Sequential population analysis on Long Tail Hake (Macruronus magellanicus)from the Southwest Atlantic. Years 1985-1995. VPA on the Long Tail Hake (Macruronus magellanicus), based on data covering the years 1985 up to 1995, was performed to assess the current state of the stock. Simulation trials, inducing uncertainty about both the natural mortality rate and recruitment were also accomplished, to evaluate the risk of overfishing which is associated to different fishing alternatives, always under the assumption of a single and closed Long Tail Hake population. CPUE data were not appropriate for tunning, so the traditional VPA has been applied. During the period of study, stock biomass and spawning stock biomass showed an increased trend. Long and short-term...
Tipo: Journal Contribution Palavras-chave: Stock assessment; Fishery management; Catch/effort; Fishing mortality; Overfishing; Biomass; Sexual maturity; Stock assessment; Fishery management; Biomass; Overfishing; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_34068; Http://aims.fao.org/aos/agrovoc/c_7016.
Ano: 1999 URL: http://hdl.handle.net/1834/1875
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Análisis secuencial de la población de polaca (Micromesistius australis) en el período 1987-1997 ajustado con valores de rendimiento por unidad de esfuerzo de pesqueros comerciales. OceanDocs
Wöhler, O.C.; Cordo, H.D.; Hansen, J.E.; Cassia, M.C..
The current status of southern blue whiting Micromesistius australis stock is described. A single, closed fish population is assumed to inhabit the SW Atlantic. Based on catch data corresponding to years 1987-1997, a sequential analysis on the stock is carried out (Cohort Analysis). Under an adaptative framework, catch per unit of effort data from commercial vessels are used to fit the model. Two commercial fleets are used in the fitting, i.e. Polish vessels (1987-1994)and Argentine surimi factory vessels (1991-1997). Results indicate that both, total stock biomass and spawning stock biomass would have declined. Total biomass would have decreased from a maximum close to 1.4 million tons in 1990 down to 0.5 mt in 1997 whereas the current spawning stock...
Tipo: Journal Contribution Palavras-chave: Stock assessment; Fishery management; Catch/effort; Recruitment; Biomass; Demersal fisheries; Demersal fisheries; Stock assessment; Fishery management; Biomass; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_926.
Ano: 2001 URL: http://hdl.handle.net/1834/1867
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Aplicación preliminar del análisis de rendimiento por recluta al efectivo pesquero de merluza común (Merluccius hubbsi) del Golfo San Matías OceanDocs
Morsan, E.M.; González, R.A..
El presente informe ha sido confeccionado con el objeto de asisitir en forma expedita a las Autoridades Provinciales en la adecuación y actualización de las pautas de manejo de la pesquería de merluza común Merluccius hubbsi que se desarrolla en la Jurisdicción Provincial (Golfo San Matías).
Tipo: Report Palavras-chave: Yield/recruit; Yield predictions; Stock assessment; Fishery management; Stock assessment; Fishery management; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_24026.
Ano: 1998 URL: http://hdl.handle.net/1834/3713
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Atelier de formation sur le code de la pêche à Kayar - 26 juillet 2002 OceanDocs
Ndiaye, O.; Sané, K.; Diouf, P.S..
Dans le but de former et de sensibiliser les acteurs chargés de I'application des lois et réglements relatifs à la pêche et ceux à qui cette réglementation s'applique, une seance de vulgarisation des lois et réglements régissant la pêche au Sénégal a été organisé le 26 juillet 2002 à Kayar
Tipo: Report Palavras-chave: Fishery management; Fishery policy; Fishery regulations; Fishery management; Http://aims.fao.org/aos/agrovoc/c_24026.
Ano: 2002 URL: http://hdl.handle.net/1834/1745
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Atelier sur la gestion et la valorisation des ressources halieutiques côtières en Afrique de l'ouest OceanDocs
Tipo: Proceedings Paper Palavras-chave: Hygiene; Rare resources; Saline water; Saproplankton; Wastes; Water resources; Fishery resources; Fishery management; Water resources; Fishery management; Wastes; Fishery resources; Hygiene; Saline water; Http://aims.fao.org/aos/agrovoc/c_8325; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_8307; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_3739; Http://aims.fao.org/aos/agrovoc/c_16376.
Ano: 2001 URL: http://hdl.handle.net/1834/1707
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Beneficio económico de la caballa (Scomber japonicus) con relación a la temperatura superficial del mar en el área de Mar del Plata. OceanDocs
Perrotta, R.G.; Hernandez, D.R..
The temperature that limits the presence of schools of Argentine chub mackerel Scomber japonicus was found to be around 19°C in the Mar del Plata area Buenos Aires prov., Argentina. At higher values, most shoals leave coastal waters in direction to the mid-shelf. An inverse relationship was observed between catches per unit of effort CPUE and sea surface temperature. The highest CPUE values corresponded to temperatures lower than 19°C. Beyond that value, the possibility of obtaining a CPUE higher than the unit is nearly null and the low standard deviation means it is unlikely to reach high CPUE values. The economic profit per minute of each daily cruise was estimated using a case study carried out with a single vessel pilot with mean structural and...
Tipo: Journal Contribution Palavras-chave: Catch/effort; Surface temperature; Fishery management; Commercial fishing; Mackerel fisheries; Fishery management; Http://aims.fao.org/aos/agrovoc/c_24026.
Ano: 2002 URL: http://hdl.handle.net/1834/2543
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Cadre de processus: OceanDocs
Ce Cadre du Processus (PF) pour le Programme Régional des Pêches pour   L'Afrique de l'Ouest (PRAO) ÉTABLI directives des Nations Unies pour l'Élaboration des FAP nationaux à travers un processus participatif par Lequel Les membres des communautés de pêche locales seront, selon Le Prao, Dans la impliqués   et la mise en oeuvre de la ongestion Conception de la pêcherie locale, tout en   maintenant La durabilité des moyens de subsistance locaux Et ainsi le suivi local   de l'effort de pêche. La délimitation des Territoires pour les Droits d'utilisation des Pêches (DUT) dans les pays participants au PRAO et la mise en oeuvre des restrictions sur   L'utilisation des Ressources Marines constitutifs des impacts sociaux importants Aux termes du OP 4.01, de...
Tipo: Other Palavras-chave: Fishery disputes; Coastal fisheries; Environmental effects; Financing; Fishery development; Fishery management; Resource management; Fishing effort; Fishermen; Maritime legislation; Financing; Fishery management; Fishermen; Coastal fisheries; Resource management; Fishing effort; Http://aims.fao.org/aos/agrovoc/c_29785; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_2936; Http://aims.fao.org/aos/agrovoc/c_1696; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_24027.
Ano: 2009 URL: http://hdl.handle.net/1834/3675
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Característica y dinámica de la explotación de corvina rubia (Micropogonias furnieri) durante la zafra invernal, años 1995 a 1997. OceanDocs
Lasta, C.A.; Carozza, C.R.; Suquelle, P.; Bremec, C.; Errazti, E.; Perrotta, R.G.; Cotrina, C.P.; Bertelo, C.; Boccanfuso, J..
Whitemouth croaker Micropogonias furnieri fishery during three intensive fishing seasons in the outer area of the La Plata River (Argentina-Uruguay) is analyzed. Resource exploitation in the South Atlantic area shows a general retraction of the distribution range and an isolation of the La Plata River stock where most of the fishing effort concentrates. The species market evolution brought about, for Argentina and Uruguay, an important shift in its dynamics as of 1992, when the product insertion in Asiatic markets generated an important commercial attraction and a subsequent increase in the fishing effort by the argentine inshore coastal fleet. This caused a change in the fishery development in Argentina and the establishment, in winter, of a fleet...
Tipo: Journal Contribution Palavras-chave: Coastal fisheries; Fishery management; Catch/effort; Landing statistics; Marketing; Fishery management; Marketing; Coastal fisheries; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4620; Http://aims.fao.org/aos/agrovoc/c_1696.
Ano: 2000 URL: http://hdl.handle.net/1834/2540
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Conocimiento biológico pesquero del recurso merluza (Merluccius hubbsi) y su pesquería en la República Argentina. OceanDocs
Bezzi, S.I.; Dato, C.V..
This paper summarizes the present knowledge on Merluccius hubbsi and its fishery in Argentina, based on the model proposed by the Technical Secretary of Comisión Técnica Mixta del Frente Marítimo, in 1990. It includes the taxonomic location of the species, its geographical distribution, stock unity, structure and population dynamics. It describes the fishing gear and fishing operations and presents the available information on selectivity and discards. The paper shows the data landings separated by fleet. Exploitation regulatory measures in force are included.
Tipo: Journal Contribution Palavras-chave: Gadoid fisheries; Population dynamics; Stock assessment; Mortality; Population structure; Fishery management; Landing statistics; Parasites; Stock assessment; Population structure; Fishery management; Mortality; Parasites; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4945; Http://aims.fao.org/aos/agrovoc/c_5574; Http://aims.fao.org/aos/agrovoc/c_6111.
Ano: 1995 URL: http://hdl.handle.net/1834/2558
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Conseil interminstériel sur la pêche et l'aquaculture OceanDocs
La pêche est une composante essentielle du développement économique et social intégré. Elle contribue de manière non négligeable aux objectifs de croissance de l'économie nationale, notamment à la réduction du déficit de la balance des paiements, du chômage ainsi qu'a la satisfaction des besoins alimentaires des populations.
Tipo: Proceedings Paper Palavras-chave: Water analysis; Factory ships; Wastewater treatment; Mackerel fisheries; Lake fisheries; Fishery policy; Fishery management; Fishery protection; Fishery resources; Aquaculture; Lake fisheries; Fishery management; Aquaculture; Water analysis; Factory ships; Wastewater treatment; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_4159; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_550; Http://aims.fao.org/aos/agrovoc/c_16064; Http://aims.fao.org/aos/agrovoc/c_10732; Http://aims.fao.org/aos/agrovoc/c_25312; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 2002 URL: http://hdl.handle.net/1834/1482
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Conseil Présidentil sur la Pêche OceanDocs
Tipo: Book Palavras-chave: Artisanal fishing; Coastal fisheries; Fish catch statistics; Fishermen; Fishery management; Fishery development; Fishery oceanography; Fishing effort; Fishery protection; Fishery statistics; Freshwater fish; Marine fisheries; Pelagic fisheries; Aquaculture statistics; Aquaculture; Aquaculture development; Fishermen; Fishery management; Fishery oceanography; Marine fisheries; Aquaculture; Coastal fisheries; Fishing effort; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_2936; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_2938; Http://aims.fao.org/aos/agrovoc/c_4611; Http://aims.fao.org/aos/agrovoc/c_550; Http://aims.fao.org/aos/agrovoc/c_1696; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 2008 URL: http://hdl.handle.net/1834/2892
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Coral reefs and their management in Tanzania OceanDocs
Wagner, G.M..
Coral reefs are very important in Tanzania, both ecologically and socio-economically, as major fishing grounds and tourist attractions. Numerous fringing and patch reefs are located along about two-thirds of Tanzania’s coastline. These reefs have been partially to severely degraded by human (primarily destructive fishing practices) and natural (particularly coral bleaching) causes. These immediate human causes have been brought about by various socioeconomic root causes, particularly poverty and lack of proper management. After decades of human and natural impacts there has been only limited reef recovery. This paper presents a region-by-region analysis of trends in the condition of coral reefs in Tanzania in relation to the causes of damage. While earlier...
Tipo: Journal Contribution Palavras-chave: Aquatic communities; Coastal zone; Fishery management; Coral reefs; Aquatic communities; Fishery management; Http://aims.fao.org/aos/agrovoc/c_553; Http://aims.fao.org/aos/agrovoc/c_24026.
Ano: 2004 URL: http://hdl.handle.net/1834/1151
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Desarrollo de un modelo bioeconómico para el manejo integral de un recurso pesquero OceanDocs
Bertolotti, M.I.; Verazay, G.A.; Abal, H.J..
A deterministic single-species bioeconomic model is developed in order to provide an integral fishery management. This model is structured by age, in order to simulate the effects of natural and fishing mortalities, with simple economic assumtions. Fishing mortality is estimated through the fishing effort expressed by fishing hours or by HP per fishing hours. Biological underfishing and overfishing are analyzed from the estimated economic equilibrium for period under study.
Tipo: Journal Contribution Palavras-chave: Fishery economics; Economic models; Fishery management; Fishery management; Http://aims.fao.org/aos/agrovoc/c_24026.
Ano: 1988 URL: http://hdl.handle.net/1834/1965
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Descripción de las principales especies de invertebrados sujetas a explotación pesquera artesanal en el Golfo San Matías y caracterización sinóptica del sistema pesquero rionegrino relacionado con esas pesquerías OceanDocs
Narvarte, M.; Morsan, E.M..
Se presenta una sinopsis sobre la situación d las pesquerias artesanales de invertebrados del Golfo San Matías, de los principales recursos (almeja púrpura, vieira tehuelche, mejillón y pulpito) y del ecosistema marino donde se desarrollan las mismas. Se brinda una guía de análisis para proceder a la evaluación de las mismas con vistas a la potencial certificación de una gestión sustentable. Además se incluye una memoria descriptiva del sector institucional y los organismos encargados de la administración, manejo, investigación y control de las pesquerías, como asi también del marco legal en la que se desarrolla la actividad
Tipo: Report Palavras-chave: Artisanal fishing; Coastal fisheries; Fishery management; Clam fisheries; Stock assessment; Legislation; Fishery regulations; Certification; Fishery management; Stock assessment; Coastal fisheries; Legislation; Certification; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_1696; Http://aims.fao.org/aos/agrovoc/c_4253; Http://aims.fao.org/aos/agrovoc/c_35702.
Ano: 2005 URL: http://hdl.handle.net/1834/3712
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Dinámica poblacional del chivo mapale Cathorops spixii en la Ciénaga Grande de Santa Marta y Complejo de Pajarales, Caribe colombiano OceanDocs
Tíjaro, R.; Rueda, M.; Santos-Martínez, A..
Durante 1994 el chivo mapalé (Cathorops spixii) fue el segundo recurso pesquero más abundante en la Ciénaga Grande de Santa Marta y el Complejo de Pajarales, principal sistema laguno-estuarino de Colombia. A partir de estadísticas de capturas comerciales y prospecciones pesqueras, se determinaron los parámetros básicos de su población: ciclo reproductivo, crecimiento, mortalidad, rendimiento y biomasa por recluta. Se presentaron individuos maduros durante todo el año con un pico de maduración y desove de junio a agosto cubriendo las épocas de lluvia menor y seca, respectivamente. La talla media de madurez se estimó en 23 cm. Los parámetros de crecimiento de la función de von Bertalanffy fueron: L¥ = 32.5 cm y K = 0.38 año-1, en tanto que el índice de...
Tipo: Journal Contribution Palavras-chave: Population dynamics; Fishery management; Artisanal fishing; Coastal lagoons; Fishery management; Population dynamics; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_6111; Http://aims.fao.org/aos/agrovoc/c_1697.
Ano: 1998 URL: http://hdl.handle.net/1834/3295
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Dinámica poblacional del coroncoro Micropogonias furnieri (Pisces: Sciaenidae) en la Ciénaga Grande de Santa Marta, Caribe colombiano OceanDocs
Narváez-Barandinga, J.C.; Blanco Racedo, J..
The “Coroncoro” fish Micropogonias furnieri has been one of the most important traditional fish resources in CGSM and CP. In order to determine exploitation status of its stock, aspects related to its biology and population parameters have been assessed. Mean maturity size was estimated in 20.7 cm at total length; whereas sex ratio was 2.39 females per male. Ripe individuals occurred throughout the whole year, with a maturation and spawning peak in the rainy season (november). Length-weight relationship showed no difference between sexes and a common equation with allometric growth W = 0.0064LT3.2 was estimated. The estimated parameters of von Bertalanffy growth function were L∞ = 34.0 cm, K = 0.44 yr-1, t0 = 0.301 yr and C = 0.5; with a growth index...
Tipo: Journal Contribution Palavras-chave: Population dynamics; Fishery management; Artisanal fishing; Growth; Fishery management; Growth; Population dynamics; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_6111.
Ano: 2006 URL: http://hdl.handle.net/1834/1980
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Distribution of economic benefits from the fisheries of Lake Victoria OceanDocs
Abila, R.O.; Odongkara, K.O.; Onyango, P.O..
The Lake Victoria fishery contributes immensely to the socio-economic development of the riparian states. The East African Community has designated the lake basin as an ‘economic growth zone’, with the potential to develop into a major economic region. The fisheries are vital in creating employment opportunities, mostly rural-based, thereby helping to reduce rural-urban migration. Fish is also a rich source of animal protein for human consumption and provides raw material (fishmeal) for processing animal feeds. The fish industry contributes to GDP and has continued to be an important source of foreign exchange earned from fish exports. Besides, the fish industry contributes to the national and local government revenues through levying of various taxes,...
Tipo: Proceedings Paper Palavras-chave: Fishery economics; Fishery management; Fishery policy; Marketing; Resource management; Socioeconomic aspects; Economic benefits; Trade; Riparian zone; Economic analysis; International policy; Exploitation; Resource development; Freshwater fish; Inland fisheries; Inland water environment; Lake fisheries; Lake fisheries; Fishery management; Marketing; Economic analysis; Resource development; Resource management; Trade; Inland fisheries; Inland water environment; Http://aims.fao.org/aos/agrovoc/c_4159; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4620; Http://aims.fao.org/aos/agrovoc/c_2469; Http://aims.fao.org/aos/agrovoc/c_28018; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_7848; Http://aims.fao.org/aos/agrovoc/c_3873; Http://aims.fao.org/aos/agrovoc/c_3875.
Ano: 2006 URL: http://hdl.handle.net/1834/2128
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Efectos de largo plazo de instrumentos de regulación pesquera: caso de la pesquería del Jurel Trachurus murphyi (Nichols, 1920) en la zona Centro Sur de Chile OceanDocs
Tijaro-Rojas, R.; Salgado-Cabrera, H..
La pesquería del jurel Trachurus murphyi (Nichols,1920) concentra cerca del 90% de las capturas del Pacífico Sur Oriental de Chile, siendo la Zona Centro Sur la que presenta las mayores abundancias de este recurso. El objetivo de este estudio es evaluar cuál de los sistemas de regulación pesquera resulta más eficiente para esta pesquería desde un enfoque bioeconómico. Con base en datos reales de captura y esfuerzo de pesca, se simuló el comportamiento de la población de T. murphyi y la flota a través del tiempo bajo tres escenarios de regulación: acceso abierto, captura total permisible y cuotas individuales transferibles. Las ecuaciones del modelo representaron el comportamiento de la población y de la entrada y salida de embarcaciones de la pesquería en...
Tipo: Journal Contribution Palavras-chave: Fishery management; Fishery management; Http://aims.fao.org/aos/agrovoc/c_24026.
Ano: 2007 URL: http://hdl.handle.net/1834/3509
Registros recuperados: 59
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