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| Registros recuperados: 173 | |
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| Lillo, S.; Céspedes, R.; Ojeda, V.; Balbontín, F.; Bravo, R.; Saavedra, A.; Barbieri, M.A.; Vera, C.. |
| El presente informe contiene los resultados finales del proyecto FIP 2004-07, licitado y financiado por el Fondo de Investigación Pesquera (FIP). Dichos resultados dicen relación con cuantificar el stock desovante de ambos recursos presentes en la zona de aguas exteriores de las regiones X y XI, así como también determinar su distribución, abundancia, además de las características biológicas y pesqueras relevantes. |
| Tipo: Report |
Palavras-chave: Spawning populations; Stock assessment; Geographical distribution; Abundance; Biological data; Stock assessment; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_5083. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/1842 |
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| Hattour, A.; Ben Abdallah, L.; Guennegan, Y.. |
| Within the frame of the National Program (PNM), 'Assessment of Marine Tunisian Resources' (1996-1999), two prospecting surveys on small pelagic fishes, have been led in narrow collaboration with French Institute IFREMER. Their objectives were to specify the relative fishes abundance, their spatial-temporal variability but also to quantify the maximum sustainable yield (MSY) of this resource. A third important goal was to familiarize a Tunisian scientist team, with numerical methods and data processing used during the cruises (reading of echograms, treatments of data, etc.) in stocks assessment. It is known that the indirect stocks assessment methods of small pelagic species is not reliable, reason for which we opted to apply echo - integration techniques.... |
| Tipo: Journal Contribution |
Palavras-chave: Abundance; Biomass; Fishery surveys; Pelagic fisheries; Potential yield; Stock assessment; Biomass; Stock assessment; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_5659. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/4237 |
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| Lillo, S.; Céspedes, R.; Balbontín, F.; Ojeda, V.; Saavedra, A.. |
| El presente informe contiene los resultados finales del proyecto FIP N° 2003-09: “Evaluación hidroacústica de merluza del sur y merluza de cola, 2003” licitado y financiado por el Fondo de Investigación Pesquera (FIP). Dichos resultados dicen relación con cuantificar el stock desovante de ambos recursos presentes en la zona de aguas exteriores de las regiones X y XI, así como también determinar su distribución, abundancia, como además las características biológicas y pesqueras relevantes. Metodológicamente, en primer lugar se realizó un crucero de prospección en el B/C “Abate Molina”, con el fin de recabar los datos acústicos, pesqueros y biológicos; y en segundo lugar se procedió a procesar y analizar los datos para evaluar ambos recursos precitados. El... |
| Tipo: Report |
Palavras-chave: Stock assessment; Stock assessment; Http://aims.fao.org/aos/agrovoc/c_24251. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/1697 |
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| Palha de Sousa, L.; Abdala, S.; Brito, A.. |
| O camarão de superfície do Banco de Sofala representa uma importante fonte de divisas para Moçambique. O estado de conhecimento sobre a pescaria encontra-se distribuído por fontes bibliográficas diversas incluindo principalmente relatórios internos. Este trabalho tem como principal objectivo compilar todos os dados e informação sobre a pescaria e o stock de camarão de superfície no Banco de Sofala desde o início da sua exploração comercial até ao presente momento. Nele se inclui uma breve descrição da pescaria, a evolução do esforço de pesca, capturas e os respectivos rendimentos da pescaria. É feita referência à história das diferentes medidas de gestão adoptadas sobre o licenciamento, a malhagem mínima, vedas e Total Admissível de Captura (TAC). É... |
| Tipo: Journal Contribution |
Palavras-chave: Shrimp fisheries; Fishing effort; Stock assessment. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/5139 |
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| Mauna, A.C.. |
| CDATA[Patagonian scallop (Zygochlamys patagonica) is a suspension feeder bivalve that presents the highest concentrations of recruits associated to the shelf-break front; but the temporal pattern of these recruitments have not been described in detail. Given the importance of recruitments for the development of the fishery and the population dynamics of the resource, in this report space-time distribution [catch per unit of effort (CPUE) of specimens =<, 15 mm, age 0+] is described and comparison between years and the Management Units (MU) 1.2 and 2 carried out. The study area corresponds to the North Management Sector of the patagonian scallop fishery (38º S-39º 30’ S, 55º W-56º W), Argentine Sea, SW Atlantic Ocean. The null hypothesis on recruitment... |
| Tipo: Journal Contribution |
Palavras-chave: Scallop fisheries; Catch/effort; Recruitment; Stock assessment; Shelf fronts. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5488 |
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| Perrotta, R.G.; Hernandez, D.R.. |
| Bluemouth (Helicolenus dactylopterus), a benthic fish mostly inhabiting at depths between 500 m and 600 m, represents a highly valuable economic resource for local fishermen at the Azores Islands (NE Atlantic). Nominal catches of bluemouth increased from 1990 through 1994, and declined afterwards reaching in 1999 the lowest value recorded. Standardized catch per unit effort (CPUE) was used as an index for stock relative abundance; a General Linear Model, considering several factors that may have affected the fishing efficiency of commercial vessels, was run to obtain this CPUE index. These factors were: fleet type, year, month, and boat size; the last three factors were found to be statistically significant. A discrete version of the Schaefers Biomass... |
| Tipo: Journal Contribution |
Palavras-chave: Stock assessment; Catch/effort; Risks; Mathematical models; Stock assessment; Mathematical models; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_24199. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/1563 |
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| Nishida, T.; Komatsu, T.. |
| Strengthening tuna management is one of the primary tasks for the new Indian Ocean Tuna Commission (IOTC). Stock assessment and the prediction of the dynamics of the tuna resources will become increasingly important research topics because they provide the basic information for the management decision process. Under these circumstances, this paper attempts to develop the stock analyses and prediction techniques using neural networks. As a first step and as a test study, analyses and predictions of catch rates of the Japanese yellowfin tuna longline fisheries are attempted. |
| Tipo: Proceedings Paper |
Palavras-chave: Fishery management; Stock assessment; Catch/effort; Tuna fisheries. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/60 |
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| Hernández, D.R.; Carozza, C.R.. |
| The simple surplus production model introduced is called Local Surplus Production Model (LSPM) because its only assumption is that the mean surplus production remains constant during a short period of years previous to the date of assessment. Its application requires only a short series (3-4 years) of values of an abundance index proportional to the mean real abundance of the resource. The model parameters estimate is performed in a Bayesian context using the SIR (Sampling Importance Resampling Algorithm) algorithm. Simple risk criteria to assess the Maximum Biologically Acceptable Catch and the risks associated to each hypothetical catch level considered are proposed. Application of the model to the whitemouth croaker (Micropogonias furnieri) resource is... |
| Tipo: Journal Contribution |
Palavras-chave: Stock assessment; Statistical models; Risks; Coastal fisheries. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5486 |
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| Registros recuperados: 173 | |
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