Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 14
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Direct assessment of anchovy by the Pelgas06 acoustic survey ArchiMer
Masse, Jacques; Mehault, Sonia; Beillois, Pierre; Duhamel, Erwan; Planque, Benjamin; Petitgas, Pierre; Biseau, Alain.
An acoustic survey was carried out in the bay of Biscay from May 1st to May 30th on board the French research vessel Thalassa. The objective of PELGAS06 survey was to study the abundance and distribution of pelagic fish in the Bay of Biscay. The target species were mainly anchovy and sardine and were considered in a multi-specific context. The results have to be used during ICES working groups in charge of the assessment of sardine, anchovy, mackerel and horse mackerel and in the frame of the Ifremer fisheries ecology program "resources variability"
Tipo: Text Palavras-chave: Bay of Biscay; Plakton net; Trawl; CUFES; Survey; Acoustic; ICES; PELGAS; Anchovy; Golfe de Gascogne; Filet à plancton; Chalut; CUFES; Campagne; Acoustique; CIEM; PELGAS; Anchois.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/acte-2291.pdf
Imagem não selecionada

Imprime registro no formato completo
Essais de dispositifs sélectifs par les flottilles chalutières du golfe de Gascogne. Programme REDRESSE ArchiMer
Mehault, Sonia; Larnaud, Pascal; Rimaud, Thomas; Cuillandre, Jean-pierre; Morandeau, Fabien; Simon, Julien; Vacherot, Jean-philippe.
The landing obligation implemented under the Common Fisheries Policy promoted the development of fishing gear selective devices. The REDRESSE project conducted in the Bay of Biscay was the opportunity for trawl fleets targeting cephalopods, Nephrops and demersal fish to continue to test various selective configurations to reduce their discards levels. The sea trials were carried out onboard of commercial fishing vessels and the experimental tows were sampled by an observer. Most of the selective devices were tested under the twin trawl method, with on one side the gear to be tested and on the other, the standard commercial gear. Other devices were tested with the parallel or alternate haul method. The data obtained were used to describe the catch species...
Tipo: Text Palavras-chave: Pêcherie langoustinière; Pêcherie poisons/céphalopode; Grande Vasière; Golfe de Gascogne; Sélectivité; Chalut; Rejets; Nephrops fishery; Fish/cephalopods fishery; Grande Vasière; Bay of Biscay; Trawl selectivity; Discards.
Ano: 2018 URL: http://archimer.ifremer.fr/doc/00457/56847/58681.pdf
Imagem não selecionada

Imprime registro no formato completo
Essais d'un chalut avec fenêtre à mailles carrées en Mer du Nord ArchiMer
Brabant, Jean-claude; Delpech, Jean-paul; Dufour, Jean-louis; Garren, Francois.
The fragile state of the cod stock in the North Sea and Western Scotland has made the European Commission take a certain amount of measures to reconstitute these stocks since the end of 2001. One of those measures consisted of improving the selection capacity of the bottom otter trawls in order to reduce the capture of juveniles, through a compulsory selection device of square mesh panel type. In this context, the Regional Marine Fisheries Committee of Nord/Pas-de-Calais/Picardie, which is against any increase of the mesh size but agrees with the adoption of a new selection device, decided to organize technical trials along with the IFREMER, so as to evaluate its efficiency. A square mesh panel system was tested in multispecific fisheries in the southern...
Tipo: Text Palavras-chave: Essais à la mer; Pêcheries multispécifiques; Cabillaud; Mer du Nord; Sélectivité; Chalut; Mailles carrées.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/rapport-3463.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude de l'équilibre de surfaces réticulées placées dans le courant uniforme. Application aux chaluts ArchiMer
Theret, Francois.
La détermination des formes et tensions d'une structure souple réticulée en équilibre dans un courant uniforme est un problème complexe. Dans cette étude, la structure considérée est un chalut dont seul le plan de coupe est, a priori, connu. La méthode itérative proposée permet de calculer les efforts hydrodynamiques exercés sur les côtés des mailles et la forme d'équilibre prise par le filet. Les difficultés de cette étude sont de trois ordres: - le comportement hydrodynamique des mailles de filet est mal connu. - un chalut est une structure infiniment souple qui n'a pas de forme propre, seule l'action des forces extérieures lui permet de prendre une certaine configuration. Mais ces forces dépendent elles-mêmes de la forme prise par le filet; nous devons...
Tipo: Text Palavras-chave: Efforts hydrodynamique; Panneau; Filet; Surface souple; Structure; Couplage fluide structure; Surface réticulée; Maille; Chalut.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/1993/these-6930.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude dynamique d'un train de pêche complet ArchiMer
Marichal, Dominique; Vincent, Benoit.
We present a complete numerical model of a full trawl gear and the vessel. The trawler is modelled by equations and hydrodynamic coefficients which are classically used for ship behaviour and ship manoeuvrability studies. It is submitted to the action of the warps. The warps and the net are part of a complex fluid-structure coupling problem. The net is a supple structure and its shape depends on the forces that are acting on it. Now, these forces themselves depend of the net meshes shape. The otter boards are most particular wings. We have studied one particular type. Then all these elements have been put together by writing their dynamics equations. A time step method enables the calculation of the shape, the forces and the motion of each element in the...
Tipo: Text Palavras-chave: Obstruction; Fishing accident; Manoeuvrability; Trawl door; Net; Trawl gear; Croche; Accident de pêche; Manoeuvrabilité; Panneau; Filet; Chalut; Train de pêche.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/acte-4617.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude numérique du train de pêche d'un chalutier (DEA) ArchiMer
Theret, Francois.
IFREMER aims at digitalizing trawl gear in order to reach two goals: on the one hand, participating in the realisation of a computer assisted trawl conception software; on the other hand, being able to study quickly and easily the influence of different adjustment parameters on the shape of the trawl in order to indicate to the skipper, if possible in real time, the optimal adjustment for the conditions he's in. From an international point of view, there are only two strategies to approach this problem: - the first strategy is based on statistical studies on the existing nets (almost limited to their reproduction on different scales), but this approach does not leave much room for innovation as it can only be applied to the same type of nets as those that...
Tipo: Text Palavras-chave: Experimentation; Optimization; Adjustment; Hydrodynamic; Modelization; Trawl gear; Trawl; Expérimentation; Maquette de chalut; Optimisation; Réglage; Hydrodynamique; Modèle numérique; Train de pêche; Chalut.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/these-3627.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude sur la pêcherie de langoustines de mer Celtique ArchiMer
Charuau, Anatole; Chesnier, Véronique; Conan, Gérard; Derennes, Marc; Destanque, Catherine; Guenole, Annie; Isifou, Amadou; Jezequel, Michèle; Miossec, Gilbert; Missaoui, Ichmi; Morizur, Yvon; Rivoalen, Jean-jacques.
Introduction : Since 1978, new measures to better manage lobster fisheries were implemented in the Celtic Sea within the context of Community regulations. Meshing, in particular, was set at 60mm, but many owners, in order to maintain sufficient leeway vis-à-vis the regulations and to avoid administrative hassles adopted at the outset fish meshing at 70mm, even 80mm. Certain habits aiming to compensate for the losses due to these increases were established: Adoption of better-performing trawls, increase in the secondary catch and enlargement of the fisheries. At the same time, especially because of strong demand from international bodies, OEM and especially EEC, knowledge about the lobster spread and more reliable assessments were achieved, the main problem...
Tipo: Text Palavras-chave: Stock assessment; Norway lobster; Celtic sea; Nephrops Norvegicus; Crustacea; Lobster fishery; Mer Celtique; Nephrops Norvegicus; Crustacea; Effort Peche; Sex Ratio; Capture; Relation Taille Poids; Maillage; Chalut; Gestion stock; Peche.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/rapport-2337.pdf
Imagem não selecionada

Imprime registro no formato completo
Histoire des engins et techniques de pêche ArchiMer
Beucher, Jean-paul; Deschamps, Gerard; Peronnet, Isabelle; Duhamel, Erwan; Barthelemy, Patricia.
L'homme a rapidement diversifié ses engins de pêche et on remarquera que les techniques alternatives qui sont actuellement pressenties pour remplacer le chalut prépondérant, sont des techniques très anciennes.
Tipo: Text Palavras-chave: Chalut; Senne; Filet; Casier; Drague; Pêche; Capture; Technique; Engin de pêche; Histoire; Evolution; Fishing; Capture; Technics; Fishing gear; History; Evolution.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/00002/11355/7928.pdf
Imagem não selecionada

Imprime registro no formato completo
La dynamique des pêches côtières du pays bigouden ArchiMer
Charuau, Anatole.
In the beginning, the coastal fleet of the Bigouden region fished by trawling and was completely focused on exploiting lobster and hake. It is a traditional business that expanded between the last war and the 70s, reaching its peak between 1975 and 1980. The best image to give an idea of this fleet is that of a "bucket waterwheel" endlessly discharging its catch in the four ports of the Guilvinec district. Where there is a seafaring business in Guilvinec, Loctudy and Saint-Guénolé, there is a complementarity that is expressed in two ways: - coastal fishing constitutes a very noticeable and regular supplement to production, since sales happen daily and only bad winter weather causes a relative decrease in the supplement. - coastal fishing gives a...
Tipo: Text Palavras-chave: France; Brittany; Data; Fishing zone; Fleet; Trawling; Commercial species; Costal fisheries; Finistere; Bretagne; Atlantique Nord Est; Golfe de Gascogne; Merluccius; Lophius; Pisces; Nephrops Norvegicus; Zone peche; Exploitation; Flottille; Chalut; Donnee; Espece commerciale; Peche cotiere.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/rapport-2202.pdf
Imagem não selecionada

Imprime registro no formato completo
La pêche au vivaneau en Guyane française ArchiMer
Prevost, Etienne.
Traditionally fished by line and conical fishing basket by Venezuelan ships, the red snapper resource off the coast of French Guyana (fish belonging to the Lutjanidae family) has been experiencing intensive fishing since 1984-85 due to the boom in classic fishing techniques and the development of trawl fishing. The study evaluates the situation of this resource's potential: biology, sampling data, bio-statistics (size and sex), size-weight relationship of the three species, specific composition of the catches, describes fishing devices and prospecting, pinpoints fishing spots, gives a distribution of the Venezuelan and Martinique fishing effort.
Tipo: Text Palavras-chave: Bow net; Trawl; Fishing line; Franch Guyana; Lutjanidae; Guyane; Chalut; Nasse; Ligne; Engin de pêche; Lutjanidae; Vivaneau.
Ano: 1986 URL: http://archimer.ifremer.fr/doc/1986/rapport-2646.pdf
Imagem não selecionada

Imprime registro no formato completo
La pêche au vivaneau en Guyane Française : Etude comparative et évaluation des trois techniques : (ligne à main, nasse, chalut) ArchiMer
Prevost, Etienne.
Traditionnellement exploitée à la ligne à main et à la nasse par les navires vénézuéliens, la ressource en vivaneaux au large de la Guyane Française (poissons appartenant à la famille des Lutjanidae) subit depuis 1984-85 une exploitation intense par l'accroissement des techniques de pêche classiques et le développement d'une pêcherie au chalut. L'étude fait le point sur les potentialités de cette ressource : biologie, données de l'échantillonnage, bio-statistique (taille et sexes), relation taille poids des 3 espèces, composition spécifique des captures, décrit les engins de pêche et prospection, localise les lieux de pêche, donne une répartition de l'effort de pêche vénézuélien et chalutier martiniquais.
Tipo: Text Palavras-chave: Vivaneau; Lutjanidae; Guyane Française; Pêche; Ligne; Nasse; Chalut.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/00429/54014/55237.pdf
Imagem não selecionada

Imprime registro no formato completo
Méthodologie de l'étude de la sélectivité des culs de chaluts ArchiMer
Portier, Marcel.
Les méthodes utilisées pour chiffrer la sélectivité des chaluts sont analysées, leurs avantages et inconvénients comparés. Les facteurs pouvant influer sur la valeur des coefficients de sélectivité mesurés sont explicités. Une étude bibliographique complète le travail et permet d'apprécier les incertitudes qui demeurent tant dans le choix de la méthode la meilleure que dans la mesure qu'elle permet.
Tipo: Text Palavras-chave: Sélectivité; Chalut.
Ano: 1991 URL: https://archimer.ifremer.fr/doc/00502/61409/65091.pdf
Imagem não selecionada

Imprime registro no formato completo
Scénarios d'aménagement des activités de pêche dans la bande cotière bretonne, rapport 2002 ArchiMer
Talidec, Catherine; Berthou, Patrick; Peronnet, Isabelle; Guyader, Olivier; Daures, Fabienne; Thebaud, Olivier; Leblond, Emilie; Bermell, Sylvain.
This 2002 report is the progress report of a study co-financed by the Brittany region and IFREMER within the framework of the XII State-Regional Planning Contract. It follows the 2001 report, which contains a comprehensive description of the Breton fleet in 2000, i.e., all occupations included, as well as its evolution since 1983. The work carried out in 2002 focused on mapping the fishing zones frequented by Brittany's ships as well as on analysing fishing strategies.
Tipo: Text Palavras-chave: Fishing gear; Regional development; Cartography; Fleet; Breton fisheries; Brittany; Cartographie; CPER 2002; Peche bretonne; Flotte; Casier; Ligne; Drague; Palangre; Filet; Chalut.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/rapport-2259.pdf
Imagem não selecionada

Imprime registro no formato completo
Sélectivité des chaluts à 4 faces en Méditerranée. Rapport d'étude d'avant-projet, 1992 ArchiMer
Dremiere, Pierre-yves; Burgaud, Laurence.
On the French Mediterranean coasts, trawl fishing used to be practiced exclusively with two-sided nets until the middle of the 1970s. The adoption of four-sided trawls has changed the composition of species and sizes of the trawlers'catches in this area. Experimental fisheries conducted in the Gulf of Lion on board a research vessel belonging to the IFREMER enabled the study of the selectivity parameters of a four-sided bottom trawl with a wrapping double-pocket. Three pockets of different meshes were tried out on various demersal and pelagic species. The collected data was processed through different selectivity analysis methods. Presented here is an assessment of the relative efficiency of each of these seven methods.
Tipo: Text Palavras-chave: Méditerranée; Chalut; Sélectivité.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/rapport-3930.pdf
Registros recuperados: 14
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