Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 10
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Variaciones en el número de miocélulas de la musculatura blanca de la merluza (Merlucciidae, Merluccius hubbsi), en la plataforma argentina OceanDocs
Christiansen, H.E..
This paper describes a method to discriminate different stocks of the Argentine hake (Merluccius hubbsi)based on the counting of white skeletal fibres of the trunk. A total of 713 females were examined from samples coming from a wide area of the Argentine shelf (between 34°30' and 54°00'S)which corresponds to the following systems: Uruguayan, Buenos Aires, northern, central and southern-patagonian. All results may be considered as preliminary due to the incipient nature of the information available on fibre regulation in fish.
Tipo: Journal Contribution Palavras-chave: Stock identification; Histology; Muscles; Hake fisheries; Muscles; Http://aims.fao.org/aos/agrovoc/c_5003.
Ano: 1982 URL: http://hdl.handle.net/1834/2055
Imagem não selecionada

Imprime registro no formato completo
Government-industry co-management arrangements within the south african deep-sea hake fishery OceanDocs
Hutton, T.; Raakjaer Nielsen, J.; Mayekiso, M..
As part of a global comparative study of user-participation in fisheries management, a neo-institutional economic framework analysis is applied to the South African Deep-sea Hake Fishery to evaluate past and present co-management arrangements. It is postulated that the comprehensive partnerships that exist will struggle to remain legitimate and functional during major changes in the access-rights regime. The government is redistributing quota to new entrants and previously-disadvantaged South Africans, resulting in competition between the established demersal trawl fleet and a new longline sector for access rights. The established industry is currently undertaking restructuring via investment schemes, joint ventures and share agreements. The relationship...
Tipo: Proceedings Paper Palavras-chave: Hake fisheries; Capture fishery economics.
Ano: 1999 URL: http://hdl.handle.net/1834/720
Imagem não selecionada

Imprime registro no formato completo
Prises accessoires des pêcherie crevettière et merluttières spécialisées dans les eaux mauritaniennes : Evaluation qualitative OceanDocs
Diop, M..
Résumé L’analyse des échantillons prélevés sur les captures des crevettiers et merluttiers espagnols opérant dans les eaux mauritaniennes entre 1991 et 1994, a montré que ces pêcheries engendrent beaucoup de prises accessoires. Ces dernières varient entre 87% et 89% pour la pêcherie crevettière et dépassent 64% pour la pêcherie merluttière. Le rapport prises accessoires/capture espèce cible varie donc de 7 :1 à 8 :1 pour les crevettiers et se situerait à environ 2 :1 pour les merluttiers. Les prises accessoires sont constituées principalement de poissons démersaux (représentés essentiellement par les sparidés), de céphalopodes (poulpe, seiches et calmar) et de petits pélagiques. Les poissons démersaux sont largement dominants.
Tipo: Journal Contribution Palavras-chave: Shrimp fisheries; Hake fisheries; Bycatch; Http://aims.fao.org/aos/agrovoc/c_15949.
Ano: 1996 URL: http://hdl.handle.net/1834/230
Imagem não selecionada

Imprime registro no formato completo
Observaciones sobre diferencias morfólogicas entre la merluza común (Merluccius hubbsi)y la merluza austral (Merluccius polylepis) OceanDocs
Cotrina, C.P.; Cousseau, M.B..
The species of the Genus Merluccius present in argentine waters, Merluccius hubbsi and M.polylepis are similar externally and it is very difficult to separate them in the capture. Knowing the importance of both species from the commercial point of view, and the need of a correct identification, some morphological characteristics have been compared, looking for external differences, useful for the identification on board. The samples have been taken from the total area of distribution of both species in argentine waters. A total of 154 specimen of Merluccius hubbsi and 105 of M.polylepis were analyzed.
Tipo: Journal Contribution Palavras-chave: Comparative studies; Hake fisheries.
Ano: 1980 URL: http://hdl.handle.net/1834/2065
Imagem não selecionada

Imprime registro no formato completo
Los recursos pesqueros demersales del Mar Argentino. Parte I. Evaluación de la biomasa (Standing stock)de la merluza común (Merluccius hubbsi)y de la merluza austral (Merluccius polylepis)en el área de su distribución estival OceanDocs
Simonazzi, M.A.; Otero, H.O..
The present paper deals with the standing stock (Pw1)of the common hake (Merluccius hubbsi)and the austral hake (Merluccius polylepis), using the swept are method (Alverson, 1971)and with the Potential Yield (Cmax)using the Gulland (1970)method. The standing stock of the common hake was 2.642.715 tons. the highest concentrations of this specie were distributed over 12.348 nm² (13 o/o of the toal distribution area)with 1.178.843 tons. This area was located between 41° and 45° of south latitude and between the coast and 100 m of bottom depth in the Patagonian Shelf. The other 1.463.872 tons were distributed over a wide area of 82.727 nm².
Tipo: Journal Contribution Palavras-chave: Stock assessment; Geographical distribution; Seasonal distribution; Hake fisheries; Stock assessment; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 1980 URL: http://hdl.handle.net/1834/2057
Imagem não selecionada

Imprime registro no formato completo
Aspectos biológico-pesqueros de la merluza de cola del Atlántico Sudoccidental OceanDocs
Bezzi, S.I..
The distribution areas and population structure of the long-tailed hake are analized. Data come from fisheries research cruises carried out by RV Walther Herwig and Shinkai Maru in the Argentine Sea in 1978/79. Macruronus magellanicus is a typical cold waters species of the Southwest Atlantic and Southeast Pacific Oceans. Maximum concentrations were found in the southern Patagonian shelf, in coastal waters and in depths below 200 m. Spawning individuals were observed on the continental slope in the southern extreme of the Patagonian shelf (54°). The distribution area extend to 93,439 n mi² in spring and to 12,368 n mi² in summer.
Tipo: Journal Contribution Palavras-chave: Geographical distribution; Size distribution; Sexual maturity; Length-weight relationships; Hake fisheries; Geographical distribution; Sexual maturity; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_7016.
Ano: 1984 URL: http://hdl.handle.net/1834/2046
Imagem não selecionada

Imprime registro no formato completo
A Bio-Economic Assessment of the West Coast Deep-Sea Hake Fishery with Referede to the Optimal Utitlization and Management of the Resource. OceanDocs
Hutton, T.; Sumaila, U.R..
The cooperative versus non-cooperative management of the South African west coast hake stock is explored using game theoretic modelling in conjunction with an age-structured model. The age-structured model is used to produce a physical flow account for input into national resource accounts. Between 1989 and 1998, the average catch of hake on the west coast was 92000 tons, most of which was harvested by the demersal trawl sector. The physical flow account indicates that the conservative re-building management strategy pursued for the fishery over the same time period mentioned above, has resulted in a 29% increase in the demersal trawl catch over the last decade. We simulated the effects of alternative quota restrictions on two fishing sectors (the...
Tipo: Working Paper Palavras-chave: Hake fisheries; Economic analysis.
Ano: 2000 URL: http://hdl.handle.net/1834/873
Imagem não selecionada

Imprime registro no formato completo
Abundancia relativa y rendimiento máximo sostenible de la merluza común (Merluccius hubbsi) OceanDocs
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
Imagem não selecionada

Imprime registro no formato completo
Fecundidad parcial y frecuencia reproductiva del efectivo patagónico de merluza (Merluccius hubbsi) OceanDocs
Pájaro, M.; Macchi, G.J.; Ehrlich, M.D..
Batch fecundity and spawning frequency of Argentine hake inhabiting Patagonian waters south of 41° S were estimated using monthly samples collected during the December 2000-March 2001 reproductive season and at the end of the March 2002 spawning period. Batch fecundity was fitted to a power function of total length and a linear function of ovary-free female weight with values ranging between 100,000 (32 cm total length) and 2,300,000 (87 cm total length) hydrated oocytes. Batch and relative fecundity showed variations during the spawning season with a marked decrease towards the end of the reproductive period (March). The spawning frequency, which ranged between 0.10 and 0.15, was estimated from the proportion of females with day-1 postovulatory follicles...
Tipo: Journal Contribution Palavras-chave: Spawning seasons; Ovaries; Hake fisheries; Ovaries; Http://aims.fao.org/aos/agrovoc/c_5456.
Ano: 2006 URL: http://hdl.handle.net/1834/1566
Imagem não selecionada

Imprime registro no formato completo
Abundancia relativa y rendimiento máximo sostenible de la merluza común (Merluccius hubbsi) OceanDocs
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
Registros recuperados: 10
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional