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Registros recuperados: 9
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Efficiency of the bottom trawl used for the Mediterranean international trawl survey (MEDITS) ArchiMer
Fiorentini, Loris; Dremiere, Pierre-yves; Leonori, Iole; Sala, Antonello; Palumbo, Vito.
The aim of the work presented in this paper was to assess the relative efficiency of the GOC 73 sampling trawl used for the Mediterranean international trawl survey programme (MEDITS) compared with that of a typical Italian commercial trawl. The latter was chosen because it is commonly used by fishermen in the central Adriatic, where the experiment was conducted, and therefore appeared as the best possible sampler of the commercial species present in those areas. Moreover, this trawl is similar to the various trawls used for the Italian national survey programme (GRUND). Four fishing trips were conducted between 1996 and 1997 in different areas and seasons to sample different species. Each trip was conducted in the same fishing area. A codend cover mounted...
Tipo: Text Palavras-chave: Efficacité du chalut; Chalut de fond; Pêche expérimentale; Technologie des engins; Chalutage; Méditerranée; Trawl efficiency; Bottom trawls; Experimental fishing; Gear research; Trawl survey; Mediterranean.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00188/29877/28359.pdf
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Hacia una cuantificación de estrés ecológico en el embalse de Rincón del Bonete (Uruguay) OceanDocs
Amestoy, F.J..
La presente tesis respondió preguntas importantes para el conocimiento del embalse de Rincón del Bonete (EdRB) y para la obtención de los puntos de referencia para la determinación de estrés ecológico en el mismo. Los objetivos específicos comprendieron la determinación de los aspectos limnológicos más relevantes, la caracterización del embalse según su estado trófico, así como el conocimiento del estado de explotación de la especie íctica mas relevante desde el punto de vista comercial. Se determinaron indicadores que permitieron aportar información de base para cuantificar el grado de perturbación del embalse a fin de adoptar estrategias de conservación y manejo, así como definir las zonas más sensibles de impacto ambiental. Se evaluó la variabilidad...
Tipo: Theses and Dissertations Palavras-chave: M40; Limnology; Environmental monitoring; Artificial lakes; Resource conservation; Ecological balance; Indicators; Echo surveys; Freshwater lakes; Experimental fishing; Biomass; Limnology; Environmental monitoring; Biomass; Artificial lakes; Resource conservation; Ecological balance; Http://aims.fao.org/aos/agrovoc/c_4343; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_8961; Http://aims.fao.org/aos/agrovoc/c_6523; Http://aims.fao.org/aos/agrovoc/c_34928.
Ano: 2001 URL: http://hdl.handle.net/1834/2611
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Las capturas del calamar Illex argentinus en el Uruguay OceanDocs
Leta, H.R..
Los calamares dada su particular abundancia son 105 moluscos marinos de mayor importancia de las aguas uruguayas. Entre éstos, el calamar Illex argentinus es el recurso más importante del área. Si bien la tecnología de captura aplicada no es específica para el recurso, los volúmenes capturados con red de arrastre principalmente para merluza, por las unidades de la Flota Comercial de Altura Uruguaya, indican la existencia de una importante biomasa de estos cefalópodos. Estas consideraciones sumadas al fácil acceso a la zona de explotación y a la duración de la temporada de pesca, favorecen el establecimiento de una pesquería propia del recurso. En 1980, el programa de investigaciones de INAPE incluyó el estudio integral de la explotación de los calamares...
Tipo: Report Palavras-chave: Fishing gear; Fishing vessels; Experimental fishing; Commercial fishing; Fishing effort; Catch statistics; Fishing gear; Fishing vessels; Fishing effort; Http://aims.fao.org/aos/agrovoc/c_2946; Http://aims.fao.org/aos/agrovoc/c_2954; Http://aims.fao.org/aos/agrovoc/c_24027.
Ano: 1981 URL: http://hdl.handle.net/1834/2564
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Les chalutages experimentaux: Utilisation de la temperature et de la profondeur comme variables auxiliaires. ArchiMer
Chevalier, R.
Very often stratification of bottom-trawl surveys is done by using a stratified random sampling scheme. If a survey is directed towards a group of species, the sampling scheme has to be a compromise between these different interests. So the sampling scheme is not totally efficient for each of the species. The use of auxiliary variables, as depth or temperature, looks as if such supplementary informations could neither improve the efficiency of the estimators nor the subsequent analysis (analysis of covariance).
Tipo: Text Palavras-chave: Hippoglossoides platessoides; Gadus morhua; Gadidae; Pisces; Variance analysis; Bottom trawls; Experimental fishing.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/publication-1803.pdf
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Lettre de l'IMROP, 6-8 OceanDocs
IMROP.
Lettre trimestrielle d'information de l'Institut Mauritanien de Recherches Océanographiques et des Pêches
Tipo: Other Palavras-chave: Experimental fishing; Fishery management; Fishing gear; Mathematical models; Oceanographic institutions; Quality assurance; Quality control; Shrimp; Fishery management; Fishing gear; Mathematical models; Quality assurance.
Ano: 2005 URL: http://hdl.handle.net/1834/1203
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Nianing: un modèle de cogestion made in Sénégal ? OceanDocs
Mbengue, Y..
Le village des pêcheurs de Nianing abrite depuis juin 2004 un projet original de gestion des ressources halieutiques. L'expérience appuyée par la coopération japonaise est soutenue par l'Administration des Pêches se veut une initiative locale de cogestion des pêcheries artisanales.
Tipo: Journal Contribution Palavras-chave: Artisanal fishing; Experimental fishing; Fishermen; Fishery management; Fishery regulations; Fishing effort; Fishermen; Fishery management; Fishing effort; Http://aims.fao.org/aos/agrovoc/c_2936; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_24027.
Ano: 2005 URL: http://hdl.handle.net/1834/2490
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Palangre de fondo en el Mar Argentino. Parte I. Resultados de los lances efectuados por el buque pesquero Koei-Maru n° 10 OceanDocs
Maeda, H.; Ercoli, R.; Fukada, K..
Some trials were made to find the substituting fishing method for bottom trawling to exploit the goundfishes in the Argentine Sea, especially those on the untrawlable grounds. The high sea bottom longlinning is one of the most prospective methods for this purpose. The present report dealt with the results of the trials of the bottom linglining conducted by the Koei-Maru n° 10, a Japanese commercial high sea bottom longliner of unique design, during the period from Oct. 25 to Dec.13 in 1987 along the outer edge of the continental shelf of the latitudes of 40 to 50 degrees south.
Tipo: Journal Contribution Palavras-chave: Fishing gear; Longlining; Experimental fishing; Fishing gear; Http://aims.fao.org/aos/agrovoc/c_2946.
Ano: 1988 URL: http://hdl.handle.net/1834/1967
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Palangre de fondo en el Mar Argentino. Parte II. Resultados de los lances efectuados por el buque de investigación pesquera "Dr. Eduardo L.Holmberg". OceanDocs
Maeda, H.; Ercoli, R.; Fukada, K.; Garcia, J.C..
Bathymetric changes in groundfish catch composition are analyzed, on the basis of routine reports of 106 bottom longline strings. The project was conducted from 12 December 1986 to 29 November 1987, covering areas from coastal waters to the outer shelf of the continental shelf off Argentina from 36° to 55°S. As a preliminary step to the analysis, the validity of each factor as probable explanatory variable in each area, was analyzed with consideration as to their range and variation. Obtained results show that the kingclip (Genypterus blacodes), a main objective of the project, could become one of the most profitable target species of the high-sea bottom longline, in areas along the outer edge of the continental shelf, at bottom depths slightly below 200...
Tipo: Journal Contribution Palavras-chave: Longlining; Experimental fishing; Demersal fisheries; Demersal fisheries; Http://aims.fao.org/aos/agrovoc/c_2173.
Ano: 1994 URL: http://hdl.handle.net/1834/1930
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The PPEAO experimental fishing dataset: Fish from West African estuaries, lagoons and reservoirs ArchiMer
Simier, Monique; Ecoutin, Jean-marc; Tito De Morais, Luis.
Background This paper describes a dataset of fish, crustacean and mollusc occurrences extracted from the “Experimental Fishing” section of the IRD's PPEAO information system. PPEAO stands for “Fish communities and artisanal fisheries of West African estuarine, lagoon and freshwater ecosystems”. This database contains information collected using two different methods: experimental fishing and surveys of the artisanal fisheries that exploit these ecosystems. The database is accessible at http://ppeao.ird.fr. New information The current dataset is available on GBIF.org at 10.15468/ra4voa. It comprises the occurrences of 314 fish, crustacean and mollusc taxa collected in experimental sampling surveys of different aquatic ecosystems in West Africa between 1979...
Tipo: Text Palavras-chave: Coastal area; Crustacean; Estuary; Experimental fishing; Fish; Lagoon; Mollusc; Reservoir lake; Tropical area; West Africa.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00482/59324/62086.pdf
Registros recuperados: 9
Primeira ... 1 ... Última
 

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