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Registros recuperados: 76
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What is the socio-economic value of the wetlands fisheries? The case of Yala Wetland in Kenya OceanDocs
Abila, R.O.; Othina, A..
Wetlands in most parts of the world are under threat of over-exploitation partly because their socio-economic value is not well known. Yala Wetland, the largest freshwater wetland in Kenya, with a large part of it bordering Lake Victoria’s shoreline, faces even greater threats of extinction. This wetland measures about 17,500 ha and is host to a number of indigenous fish species, animals and plants which are exploited by the local communities for subsistence and commercial purposes.There has been pressure to reclaim portions of this wetland for agricultural activity. So far, 2,300 ha has, indeed, been drained for commercial agriculture. Furthermore, it is difficult to control effort in the exploitation of the remaining wetland resources since the...
Tipo: Proceedings Paper Palavras-chave: Wetlands; Inland waters; Overexploitation; Socioeconomic aspects; Fishery resources; Resource management; Water reservoirs; Monitoring systems; Land use; Resource conservation; Environment management; Protected resources; Freshwater lakes; Inland fisheries; Lake fisheries; Wetlands; Inland waters; Overexploitation; Http://aims.fao.org/aos/agrovoc/c_8371; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_28014.
Ano: 2006 URL: http://hdl.handle.net/1834/1493
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Coexistencia de las dos especies de Cachorreta (Pisces: Auxis) en la Región de Santa Marta, Colombia OceanDocs
Acero, P.A.; Polanco F., A.; Garzón-Ferreira, J..
The marine environment of the Santa Marta region (Colombian Caribbean) is unique in many ways. The coexistence there of both species of Auxis is herewith reported and discussed. Auxis thazard, the frigate tuna or frigate mackerel, has been reported several times from Santa Marta; however, the occurrence of A. rochei, the bullet tuna or bullet mackerel, is reported for the first time. Some inter and intraspecific differences are discussed; fishery aspects are commented as well.
Tipo: Journal Contribution Palavras-chave: Fishery resources; New records; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 2006 URL: http://hdl.handle.net/1834/1972
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El recurso Jurel (Trachurus murphyi) en aguas ecuatorianas OceanDocs
Aguilar, F..
El Jurel, especie pelágica de la familia Carangidae, se distribuye en el Pacífico Suroriental principalmente a lo largo de las costas de Perú y Chile entre los 01~'35'N a 55~'S (Chirichigno et al., 1982). Durante el período de 1984-1990 las capturas fueron ocasionales, de poca importancia, reportadas generalmente entre los meses de septiembre-octubre y obtenidas en el extremo sur del Golfo de Guayaquil. En 1991, los resultados del sistema de monitoreo de los puertos pesqueros industriales reportó pequeñas capturas del recurso en enero, las que volvieron a ocurrir a partir del mes de mayo, pero en niveles muy superiores. En 1991 las capturas de Jurel estuvieron comprendidas entre las 64943,8 (mayo) y 74,9 T (diciembre). Durante los meses de mayo, julio y...
Tipo: Journal Contribution Palavras-chave: Biological data; Pelagic fisheries; Fishing effort; Fishery resources; Pelagic fisheries; Fishing effort; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_5659; Http://aims.fao.org/aos/agrovoc/c_24027; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 1993 URL: http://hdl.handle.net/1834/3073
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La pesquería de peces pelágicos pequeños en 1992 OceanDocs
Aguilar, F; Santos, M..
Este informe resume la actividad de la flota cerquera, los resultados se basan en la información colectada entre enero y diciembre de 1992, obtenida mediante el sistema de muestreo en puerto y procesada en la base de datos del departamento de Recursos Pesqueros del Instituto Nacional de Pesca. En cada barco pesquero muestreado se obtuvo la siguiente información: Zona de pesca, número de lances y desembarque estimado.
Tipo: Journal Contribution Palavras-chave: Pelagic fisheries; Fishery resources; Fishing vessels; Biological data; Pelagic fisheries; Fishery resources; Fishing vessels; Http://aims.fao.org/aos/agrovoc/c_5659; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_2954.
Ano: 1993 URL: http://hdl.handle.net/1834/3074
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A review of 1973 - 1982 Tuna fishing activities within Nigeria's Eez and the options for Nigeria. OceanDocs
Ajayi, T.O..
Examination of published information on temperature, oxygen and other enviromental prefrences of tuna like fishes suggests that the Nigerian EEz should have commercial quantities of fishes. ICCAT historical catch and effort data analysed are confirmatory. given the prevailing low level of maintenance conciousness, initial investmnt and skills required, purse-seine may not be decidedly superior to pole ond line as capture technique. Prefered size of vessel type and gear specific scenarios are described. It appears that fuel costs can attract some of the multinational fleets to Nigeria and that transhipment facilities and a local canery are advantageous.
Tipo: Report Palavras-chave: Fishery resources; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 1984 URL: http://hdl.handle.net/1834/2552
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The potential and strategies for optimum utilization of the fisheries resources of Nigeria OceanDocs
Ajayi, T.O.; Talabi, S.O..
The potential of the fishery resources of Nigeria (marine, brackish and freshwater) is assessed by means of primary and secondary data. The status of fish culture and its rapid development possibilities are discussed. Catch disposal and wastage therefore are critically examined. The inshore artisanal fisheries which have access to 128,000-170,000 mt of demersal pelagic and shellfish resources annually appear to be almost fully exploited. There is hope however for increased capture gear efficiency. On the other hand, the demersal stocks of the inshore industrial fishery, with a potential of 20,000 m.t. are still under-utilised. If poaching is eliminated, 3,500-4,000 mt of shrimp P. notialis can be harvested along with 7,000 mt of good sized fish as by...
Tipo: Report Palavras-chave: Fishery development; Fishery resources; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 1984 URL: http://hdl.handle.net/1834/2427
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Impact of drainage water inflow on the environmental conditions and fishery resources of lake borollus OceanDocs
Al Sayes, A.; Radwan, A.; Shakweer, L..
The brackish water lake Borollus occupies a central position at the north between the two branches of the Nile delta. This lake has a particular importance in the fish economy of Egypt. Therefore environmental and fisheries investigation was carried out at the lake during 2000–2002, where 15 stations covering the whole area of the lake were sampled. The present study points out that: 1. The water transparency of the lake is low where the average Secchi disc depth ranged between 21.14 cm and 43.89 cm. 2. The average water temperature attained its minimum in winter and ranged between 16.20 °C and 17.80 °C. The highest temperature was in summer where it ranged between 28.33 °C and 28.52 °C. 3. The recorded pH values indicate that the lake water was generally...
Tipo: Journal Contribution Palavras-chave: Field Study; Brackish water; Fishery resources; Drainage water; Brackish water; Fishery resources; Drainage water; Http://aims.fao.org/aos/agrovoc/c_1049; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_2374.
Ano: 2007 URL: http://hdl.handle.net/1834/1906
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Species composition, distribution and resource pontentials fisheries recorded in bottom trowling betweem 50 and 200M depth off Nigerian the Coast. OceanDocs
Amadi, A.A..
15 trawl hauls in the 50-200m-depth zone of the Nigerian continental shelf yielded 8092 fishes from 38 families comprising 48 species. Dentex angolensis, Dentex congoensis, priacanthus arenatus and Ariomma bondi were identified as the dominant species. Their resource potential in the area should be further investigated
Tipo: Report Palavras-chave: Fishery resources; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 1982 URL: http://hdl.handle.net/1834/2219
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Les ressources halieutiques de la République Islamique de Mauritanie OceanDocs
AtlantNIRO; CNROP.
Le présent prospectus donne une courte caractéristique biologique des principales espèces pêchées dans la Zone Economique Exclusive Mauritanienne et des engins utilisés pour la pêche, ainsi que les informations relatives à leur composition chimique, à la valeur nutritive de la matière première, et à ses caractéristiques avec les possibilités de sa transformation en différents produits. Les informations présentées pourront être utiles aux producteurs pour le choix de la matière première et des possibilités de sa valorisation
Tipo: Other Palavras-chave: Fishery resources; Valorisation des produits; Composition chimique; Biologie; Ressources halieutiques; Biology; Valeur nutritive; Fish prossessing; Transformation des produits; Engins de pêche; Food value; Fishing gear; Fish species; Processing fishery products.
Ano: 2001 URL: http://hdl.handle.net/1834/233
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Metodologias de procesamiento de imagenes NOAA-AVHRR y su utilizacion en aplicaciones oceanograficas y biologico-pesqueras en el Atlantico sudoccidental. OceanDocs
Bava, J..
The objective was to use the synoptic capability of NOAA-AVHRR images, and the physical variables inferred from them, in order to achieve spatial and temporal analysis that may allow correlating the satellite variables with oceanographic processes and biological or fishing data. Methodologies of image processing were developed to make possible the use of AVHRR information for the standardized and reliable generation of Sea Surface Temperature (SST) images (using bands 3 to 5 in the thermal infrared), and water reflectance images (using optic bands 1 and 2) as an index of surface turbidity in coastal zones. A methodology was also generated in order to obtain gradients images derived from SST images, which allows the identification of oceanographic fronts....
Tipo: Theses and Dissertations Palavras-chave: Image processing; Satellite sensing; Surface temperature; Turbidity; Reflectance; Fishery resources; Oceanic fronts; Image processing; Turbidity; Fishery resources; Reflectance; Http://aims.fao.org/aos/agrovoc/c_37359; Http://aims.fao.org/aos/agrovoc/c_15043; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_28538.
Ano: 2004 URL: http://hdl.handle.net/1834/1467
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Metodologias de procesamiento de imagenes NOAA-AVHRR y su utilizacion en aplicaciones oceanograficas y biologico-pesqueras en el Atlantico sudoccidental. OceanDocs
Bava, J..
The objective was to use the synoptic capability of NOAA-AVHRR images, and the physical variables inferred from them, in order to achieve spatial and temporal analysis that may allow correlating the satellite variables with oceanographic processes and biological or fishing data. Methodologies of image processing were developed to make possible the use of AVHRR information for the standardized and reliable generation of Sea Surface Temperature (SST) images (using bands 3 to 5 in the thermal infrared), and water reflectance images (using optic bands 1 and 2) as an index of surface turbidity in coastal zones. A methodology was also generated in order to obtain gradients images derived from SST images, which allows the identification of oceanographic fronts....
Tipo: Theses and Dissertations Palavras-chave: Image processing; Satellite sensing; Surface temperature; Turbidity; Reflectance; Fishery resources; Oceanic fronts; Image processing; Turbidity; Fishery resources; Reflectance.
Ano: 2004 URL: http://hdl.handle.net/1834/1467
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Taxonomic status of two morphotypes of Coryphaena hippurus (Perciformes: Coryphaenidae) Neotropical Ichthyology
Bonner,Alan; Duarte,Michelle R.; Souza,Rosa C. C. L.; Monteiro-Neto,Cassiano; Silva,Edson P..
ABSTRACT Two Coryphaena hippurus morphotypes (dourado and palombeta) are found along the Brazilian coast and are considered by Rio de Janeiro’s fisherman and fishmongers as two different species. Furthermore, these morphotypes are commercialized under different values and suffer different fishing pressure. Therefore, a definition of their taxonomic status is an important economic and biological matter. In order to investigate this problem, allozyme electrophoresis method was undertaken for seventeen loci on 117 individuals of C. hippurus sampled at Cabo Frio/RJ (Brazil). The data indicate homogeneity between the morphotypes gene pools. Nevertheless, differences were found for genetic variation among dourado and palombeta, especially due to alcohol...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alcohol dehydrogenase; Allozyme electrophoresis; Biochemical systematics; Fishery resources; Genetic variation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000100205
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Coral Transplantation and Restocking to Accelerate the Recovery of Coral Reef Habitats and Fisheries Resources Within No-Take Marine Protected Areas: Hands-On Approaches to Support Community-Based Coral Reef Management OceanDocs
Bowden-Kerby, A..
Of the planet’s 600,000 km2 of coral reefs (Jameson et al., 1995), roughly 70-80% are located in developing countries. Many of these reefs are owned or controlled by indigenous fishing communities rather than national or state governments. These rural fishing communities are a primary force of destruction to coral reefs on a global scale (Wilkinson, 1998), therefore their involvement in the management and conservation of coral reefs will be an essential part of reversing coral reef decline....
Tipo: Report Palavras-chave: Ecosystem management; Coral reefs; Fishery resources.
Ano: 2003 URL: http://hdl.handle.net/1834/849
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Condiciones físico químicas en el entorno de la Isla de La Plata (Agosto/2001) OceanDocs
Burgos, L.; Gamboa, M.C..
Con el objeto de estudiar las funciones de esforzamiento y mecanismos que regulan la surgencia, a fin de desarrollar la capacidad de predicción de sus efectos sobre las pesquerías de la zona.
Tipo: Journal Contribution Palavras-chave: Upwelling; Nutrients (mineral); Cruises; Chemical properties; Physical properties; Water properties; Fishery resources; Chemical properties; Physical properties; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_9754; Http://aims.fao.org/aos/agrovoc/c_13328; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 2002 URL: http://hdl.handle.net/1834/2273
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The status of the fishery resource in, the wetlands of Tanzania OceanDocs
Bwathondi, P.O.J.; Mwamsojo, G.O.J..
The main types of wetlands in Tanzania are described as an introduction to a coverage of the fisheries of the large lakes, the minor waters, the rivers and the intertidal ecosystems.Fisheries potential is estimated and details of catches for each wetland type are given.Fishing techniques and the future of the fisheries are discussed and recommendations madefor future wetlands fishery conservation.
Tipo: Working Paper Palavras-chave: Fishery resources; Wetlands.
Ano: 1993 URL: http://hdl.handle.net/1834/525
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Sistema de Controle de Pesca de Mato Grosso do Sul SCPESCA/MS 21-2014. Infoteca-e
CATELLA, A. C.; CAMPOS, F. L. de R.; ALBUQUERQUE, S. P..
Neste boletim encontram-se as informações sobre a pesca profissional e esportiva (pesca recreativa) coletadas e analisadas pelo Sistema de Controle da Pesca de Mato Grosso do Sul (SCPESCA/MS) no ano de 2014. Os dados obtidos são provenientes do pescado capturado em toda a Bacia do Alto Paraguai em Mato Grosso do Sul (BAP/MS) e vistoriado pela Polícia Militar Ambiental/MS. Foi registrado um total de 306 t de pescado, das quais 136 t (44,4%) foram capturadas pela pesca profissional (estimativa de captura) e 170 t (55,6%) pela pesca esportiva. As espécies mais capturadas pelas duas categorias juntas foram: cachara Pseudoplatystoma reticulatum (69 t, 22,6%) pintado Pseudoplatystoma corruscans (67 t, 22,1%), e pacu Piaractus mesopotamicus (43 t, 14,3 %). Os...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Bacia do Alto Paraguai; Pesca esportiva; Pesca recreativa; Upper Paraguay River Basin; Fishery statistics; Small scale fisheries; Sport fisheries; Recreational fisheries.; Produção pesqueira; Estatística pesqueira; Pesca Continental.; Pesca Artesanal; Fishery resources; Pantanal..
Ano: 2015 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1036670
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Evaluación acústica de recursos pesqueros pelágicos frente a la costa sur ecuatoriana durante septiembre de 1995 OceanDocs
Chalen, X.; Vicuña, H..
Nineteen lightday rectangular transects were made 16 in the area of the Gulf of Guayaquil (Ecuador), and 3 in an oceanic area at the west of the Gulf of Guayaquil, this was the second part of research cruise, oriented to the evaluation of the small pelagic fish stocks, it was made between september 14th and 27th, 1995. The SIMRAD EK-500 acoustic system was used, installed on board of the National Research Institute (INP) R/V Tohallí. At the same time, people from the INP's Fisheries Observer Program were on four private enterprises vessels, while they were fishing in the same Gulf's area. They also made the biological sample of the commercial catch, for future relation with the results from the acoustic evaluation. The V/R Tohallí principal catch was jack...
Tipo: Journal Contribution Palavras-chave: Geographical distribution; Abundance; Demersal fisheries; Fishery resources; Continental shelves; Echo surveys; Geographical distribution; Demersal fisheries; Fishery resources; Continental shelves; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_32413.
Ano: 1996 URL: http://hdl.handle.net/1834/2962
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Importance des saisons de transition hydrologique et impact des anomalies climatiques sur l'activité d’une flottille pélagique en ZEE mauritanienne 1985 – 1987 OceanDocs
Chavance, P.; Loktionov, Y.; Mahfoudh, M..
Tipo: Journal Contribution Palavras-chave: Catch/effort; Condition factor; Environmental effects; Environmental impact; Fishery resources; Fishing fleet; Pelagic fisheries; Seasonal distribution; Seasonal variations; Temperature effects; Temporal variations; Upwelling; Environmental impact; Fishery resources; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 1989 URL: http://hdl.handle.net/1834/1144
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Situación actual de los recursos pesqueros del Archipiélago Sabana-Camagüey, Cuba OceanDocs
Claro, R.; García Arteaga, J.P.; Gobert, B.; Cantelar Ramos, K.; Valle Gómez, S.V.; Pina Amargos, F..
The main objectives of the present study were to describe the historical development of finfish fisheries in the Archipelago Sabana-Camagüey and adjacent northeast region (Cuba), and to assess the current status of fisheries resources. Species and size composition of trawl, trap, and gillnet catches were surveyed, fisheries statistics from fishing enterprises of the area were analysed, and experienced fishermen were interviewed. The historical evolution of catches and changes in fishing effort since 1962 is described. After a growth phase in catches resulting from increasing fishing effort, the fisheries reached a level of overexploitation by the second half of the 70s. The reduction of fishing effort and the establishment of some regulations has...
Tipo: Journal Contribution Palavras-chave: Fishery resources; Catch/effort; Catch composition; Fishery resources; Catch composition; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_1384.
Ano: 2004 URL: http://hdl.handle.net/1834/3050
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Estado de situación de los recursos pesqueros del Golfo San Matías, sus pesquerías, especies asociadas y ambiente: informe ad hoc para la evaluación preliminar de las pesquerías marinas de Río Negro con vistas a la certificación de su sustentabilidad OceanDocs
Coller, M.; Osovnikar, P.; Narvarte, M.; Perier, R.; González, R.A.; Di Giácomo, E.; Morsan, E.M.; Braicovich, P.; Curtolo, L.; Ocampo, M..
Se realiza una sinopsis del estado de situación de los recursos pesqueros del Golfo San Matías, de sus pesquerías y especies asociadas a las mismas y del ecosistema marino. El objetivo de este informe es presentar información histórica y actualizada sobre los recursos pesqueros y las pesquerías marinas de Río Negro, a los fines de su empleo como guía de análisis para la evaluación de las mismas con vistas a la potencial certificación de una gestión sustentable de las mismas a partir de los estándares del Marine Stewardship Council (MSC). Se presenta información sobre la organización y estructura del sector institucional y del marco legal en el que se desarrolla la actividad. Se desarrolla una caracterización de las pesquerías a partir de diferentes...
Tipo: Report Palavras-chave: Fishery resources; Fishery management; Clam fisheries; Coastal fisheries; Biodiversity; Environments; Associated species; Yield; Potential yield; Fishery regulations; Certification; Standards; Sustainability; Fishing fleet; Fishery management; Certification; Fishery resources; Coastal fisheries; Biodiversity; Sustainability.
Ano: 2004 URL: http://hdl.handle.net/1834/3719
Registros recuperados: 76
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