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| Registros recuperados: 87 | |
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| Otero, H.O.. |
| The statistics provided by the Argentinean Fishing Vessel and the biological data collected by scientist in the last eleven years, allow us to estimate different aspects of the population dynamics of the common hake (Merluccius hubbsi). This work deals with the relative abundance and the maximal sustainable yield of this species, considering the bonaerense stock of the Southewest Atlantic. Analyzing the effective fishing density, concluding remarks can be made. The high catches of 1967 (more than 600.000 tons.)made by the Russian Fleet, affected the fishing density in 1968. Since 1969, the resource recovered the high density level as a consequence of a decrease in the catches and in the fishing effort, but vulnerability of the stock is shown. |
| Tipo: Journal Contribution |
Palavras-chave: Catch/effort; Potential yield; Hake fisheries. |
| Ano: 1980 |
URL: http://hdl.handle.net/1834/2061 |
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| Otero, H.O.. |
| The statistics provided by the Argentinean Fishing Vessel and the biological data collected by scientist in the last eleven years, allow us to estimate different aspects of the population dynamics of the common hake (Merluccius hubbsi). This work deals with the relative abundance and the maximal sustainable yield of this species, considering the bonaerense stock of the Southewest Atlantic. Analyzing the effective fishing density, concluding remarks can be made. The high catches of 1967 (more than 600.000 tons.)made by the Russian Fleet, affected the fishing density in 1968. Since 1969, the resource recovered the high density level as a consequence of a decrease in the catches and in the fishing effort, but vulnerability of the stock is shown. |
| Tipo: Journal Contribution |
Palavras-chave: Catch/effort; Potential yield; Hake fisheries. |
| Ano: 1980 |
URL: http://hdl.handle.net/1834/5456 |
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| Perrotta, R.G.. |
| Analyzed in this paper is the structure of the fleet applied to mackerel fishing based at Mar del Plata Port (38° LS); an attempt is also made at establishing the best system for measuring the fishing effort; the changes in catch capability (availability and vulnerability)are duly analyzed. Sampling vessels that allow greater data, particulary by in relation to the fishing effort, are available since the 1983/84 fishing season. |
| Tipo: Journal Contribution |
Palavras-chave: Catch/effort; Catchability; Fishing fleet. |
| Ano: 1988 |
URL: http://hdl.handle.net/1834/1959 |
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| 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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| 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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| Wöhler, O.C.; Marí, N.R.. |
| Basic aspects concerning southern blue whiting (Micromesistius australis) fishing by the Argentine fleet in the period 1989-1995 are analized. Catch and effort statistics, fleet operation modalities and spatial and temporary characteristics of fishing activities are included. The basic information to perform this analysis was collected from the fishing statistics provided by the Subsecretaría de Agricultura, Ganadería y Pesca of Argentina and from reports of the Observers Program on board of the commercial fleet. It was in 1989, when the first ship for surimi production entered the fishery, that southern blue whiting catches carried out by the Argentine fleet became important. As of 1989 catches increased in a steady way to stabilize at near 100,000 annual... |
| Tipo: Journal Contribution |
Palavras-chave: Catch statistics; Fishing grounds; Catch/effort; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_2947. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/2528 |
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| Solano, F.; Flores, L.; Ruiz, W.. |
| Durante el 2009, se realizó el seguimiento de las capturas de cangrejo rojo (Ucides occidentalis), en las principales localidades de extracción de la provincia de El Oro y Guayas, la captura total estimada de cangrejos fue de 2 897 707 y 3 184 795 en las provincias mencionadas. Las localidades de Puerto Jelí y Puerto Baquerizo Moreno fueron las de mayor desembarque, lo que está relacionado directamente con el esfuerzo. La CPUE fue muy variada en los puertos monitoreados con valores que oscilaron entre 47 a 94 cangrejos hombre-1 día-1, obteniéndose mayores niveles en el periodo posterior a la época de veda. La distribución de tallas de amplitud del cefalotórax de los cangrejos capturados, en cada una de las localidades muestreadas, fue superior a la talla... |
| Tipo: Journal Contribution |
Palavras-chave: Catch/effort; Crab fisheries; Size-limit regulations; Landing statistics. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4793 |
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| 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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| Pérez, M.A.; Ruarte, C.O.. |
| Monte Hermoso (Province of Buenos Aires, Argentina) is a tourist town inhabited by a large number of artisanal fishermen. The aim of this study was to characterize, through a descriptive analysis, the operational activity of the artisanal fleet and quantify the catches landed per species. The ships, of a trucker type, are 6-9 m length equipped with a 40-90 HP outboard motor. The data analyzed derive from purchase slips furnished by a gatherer corresponding to the November 2009-October 2010 period. The target species were stripped weakfish (Cynoscion guatucupa) and patagonian smoothhound (Mustelus schmitti). The former was caught with hand line throughout the year, essentially between September-December. The latter was fished during March-April and... |
| Tipo: Journal Contribution |
Palavras-chave: Coastal fisheries; Artisanal fishing; Catch/effort; Landing statistics. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5489 |
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| 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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| Ould Taleb Ould Sidi, M.M.. |
| Résumé : En 1990, la pêcherie pélagique en Mauritanie s’est caractérisée par d’importantes variations – tant en termes d’effort et de rendement qu’au niveau de la composition spécifique des captures – par rapport aux années antérieures. En effet, l’effort, exprimé en jours de pêche standards, a atteint 9761 jours de pêche standards ; ce qui constitue une augmentation de plus de 21% par rapport à 1989. Aussi, avec 372000 tonnes, les captures totales ont enregistré une augmentation de 4,4%. Pour sa part, la Prise par Unité d’Effort (PUE) a enregistré un recul sensible passant de 44 tonnes/jour de pêche (t/jp) en 1989 à 38 t/jp en 1990. La composition spécifique des captures a été marquée par une augmentation importante de la contribution des sardinelles qui... |
| Tipo: Journal Contribution |
Palavras-chave: PUE; Pelagic fish; Catch/effort; Capture fisheries. |
| Ano: 1996 |
URL: http://hdl.handle.net/1834/232 |
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| Ould Taleb Ould Sidi, M.M.. |
| Résumé: L’effectif des bateaux de pêche pélagique qui ont opéré dans la zone économique exclusive mauritanienne en 1989 s’élève à 63. L’effort de pêche standard de la flottille chalutière étrangère a atteint 8021 jours de pêche. Les prises effectuées sont de l’ordre de 356.000 tonnes dont 76% réalisés par la flottille de l’Union Soviétique et 23,5% par celle de la Roumanie. La composition spécifique est dominée par les chinchards avec 47%. Les sardinelles représentent environ 18% et la sardine plus de 15%. Les sabres et la rubrique divers occupent respectivement 6,26 et 7 ,40%. |
| Tipo: Journal Contribution |
Palavras-chave: Catch/effort; Pelagic fish. |
| Ano: 1995 |
URL: http://hdl.handle.net/1834/254 |
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| Registros recuperados: 87 | |
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