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Registros recuperados: 14
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Amélioration de la sélectivité des chalutiers Pêcherie multispécifique – Manche - Mer du Nord (selecmer) ArchiMer
Leonardi, Sophie; Rubin, Alex; Meillat, Marc; Coppin, Franck; Delpech, Jean-paul; Morandeau, Fabien; Larnaud, Pascal.
Ce rapport fait la synthèse des travaux réalisés en 2008 et en 2009 au cours du programme Selecmer. Celui-ci, réalisé à l'initiative des professionnels de la pêche en partenariat avec l'Ifremer, avait pour objectif de travailler à améliorer la sélectivité du chalut de fond qu'ils utilisent afin de diminuer les rejets des individus hors-tailles1, en particulier pour le merlan, tout en limitant les pertes commerciales immédiates. Une première phase a consisté à tester l'efficacité de fenêtres à mailles carrées. La deuxième phase a eu pour objectif de développer une grille sélective. Des essais en bassin et des campagnes vidéo en mer ont permis d'apporter des ajustements aux dispositifs sélectifs. L'ensemble des essais de sélectivité à bord des navires de...
Tipo: Text Palavras-chave: Professional fishermen; Square mehs; Flume tank; Selective grid; North Sea; Channel; Bottom trawl; Selectivity; Fishing; Professionnels; Mailles carrées; Campagnes à la mer; Bassin d'essais; Grille sélective; Mer du Nord; Manche; Chalut de fond; Sélectivité; Pêche.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/rapport-6776.pdf
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Analyse de l'organisation du travail, de la sécurité et des conditions de travail à la pêche artisanale ArchiMer
Andro, M.; Dorval, Philippe; Le Bouar, G.; Le Pluart, C; Le Roy, Y; Roullot, C; Meillat, Marc; Prado, J.
Lorsque l'on étudie la flotte de pêche artisanale française, on ne peut qu'être frappé par la grande diversité des navires existants. L'examen des unités, soit construites ces dernières années, soit mises en chantier, soit projetées, dans le cadre de la politique de renouvellement de la flotte artisanale ne laisse apparaître aucune évolution significative dans ce domaine. On peut certes expliquer la très grande variété de navires proposés par différents facteurs : . Le coût des unités de pêche doit s'adapter aux budgets disponibles, très divers, les équipements intervenant de façon non négligeables dans ces coûts. . Chaque patron cherche à acquérir l'unité qu'il croit le mieux adapté au métier qu'il désire pratiquer (les exigences seront très diverses...
Tipo: Text
Ano: 1985 URL: http://archimer.ifremer.fr/doc/00105/21582/19162.pdf
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Aspects technologie pêche de la campagne JUVESU 99 ArchiMer
Meillat, Marc.
IFREMER's "Fishing Technology" team participated in the JUVESU99 campaign from 1 to 13 September. The equipment tested was the same as that from the SURFET99 campaign, a pelagic trawl with a surface area of 47.75 x 43.75 with netting of 500 metres of cables, 120-metre arms of equal length above and below, and a ballast of 40 kg to each wing tip The pelagic panels used were panels from the company TYBORON of "type 8" lent through the intermediary of the Kéroman company, Dock et Entrepôts Maritimes. The trawl's collection of balls consisted of a cluster of ten 11-litre balls on each upper wing tip, and a cluster of five 11-litre balls on each side of the square. The total collection of balls was therefore thirty 11-litre balls along the back rope of the...
Tipo: Text Palavras-chave: Gwen Drez; Fishing technology; Pelagic trawl; Fishing gear; Trawl survey; Gwen Drez; Technologie des pêches; Chalut pélagique; Engin de pêche; Campagne de chalutage.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/1999/rapport-2647.pdf
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Comment épargner les juvéniles de soles et de gadidés dans la pêcherie crevettière : expériences de chalut sélectif en baie de Vilaine, première partie ArchiMer
Dupouy, Herve; Vacherot, Jean-philippe; Meillat, Marc.
The French brown shrimp (Crangon crangon) fishery employs on a seasonal basis around 140 ships about 10 metres in length and with engines of about 100 kilowatts of power. It takes place mainly along the coastal bottoms of silted-up sand at a depth of 2 to 10 metres and occupies principally the coasts of the eastern English Channel and those of the Gulf of Gascony. The brown shrimp catch is performed by bottom trawl, with exempted meshing of 20 mm (stretched mesh), which causes numerous rejects of immature fish that live on the same bottoms. The main part of these juveniles is made up of flat fish (sole, in particular) and of gadidae (whiting and pout). To reduce these undesirable catches that are also detrimental to other fisheries, some ingenious...
Tipo: Text Palavras-chave: Selective trawl; Devisme trawl; Asselin trawl; Brittany; Bay of Vilaine; Gadides; Sole; Whiting; Pout; Juvenile; Chalut devisme; Chalut Asselin; Chalut sélectif; Baie de Vilaine; Gadidés; Soles; Merlan; Tacaud; Juvéniles.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/rapport-2669.pdf
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Comment épargner les juvéniles de soles et de gadidés dans la pêcherie de crevette grise, Deuxième partie ArchiMer
Vacherot, Jean-philippe; Dupouy, Herve; Meillat, Marc.
Starting from the year 2000, the European Union planned to establish the use of a selective trawl in brown shrimp (Crangon crangon) fisheries. In fact, the brown shrimp is caught by a bottom trawl equipped with stretched 20 mm exempted meshing in estuary areas where the nurseries of flat fish and gadidae are located. For Vilaine's estuary, Dupouy et al (1997) estimated at about 1 tonne of flat fish and one tonne of gadidae the loss in equivalent fish of marketable size, per landed tonne of brown shrimp. In this document, the authors introduce improvements resulting from the use of selective trawls developed in France (Asselin and Devismes trawls), and they show by what means the selectivity of these trawls can be improved further.
Tipo: Text Palavras-chave: Bay of Vilaine; Common shrimp; Selective trawl; Whiting; Pout; Gadides; Soles; Juveniles; Baie de Vilaine; Crevette grise; Chalut sélectif; Merlan; Tacaud; Gadidés; Soles; Juvéniles.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/1998/rapport-2670.pdf
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Compte-rendu de mission " technologie " à bord du N/O Gwen-Drez du 13/05/88 au 27/05/88 ArchiMer
Meillat, Marc.
Cette campagne a permis de tester le chalut 3 ailes grée à double bourrelet avec un gréement à bras et pattes, et de le comparer avec un gréement à fourches de 30 m. Les résultats ont montré que ce gréement à bras et pattes permet aussi une bonne ouverture verticale.
Tipo: Text Palavras-chave: Technologie de la pêche; Chalut 3 ailes.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/00073/18452/15991.pdf
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Engineering development of flexible selectivity grids for Nephrops ArchiMer
Loaec, Henri; Morandeau, Fabien; Meillat, Marc; Davies, Peter.
There are different approaches to selectivity, including increasing cod-end mesh size, square mesh panels and rigid grids. Selectivity grids have traditionally been produced to be as rigid as possible to maintain spacing but this can result in heavy, expensive grids, handling problems and brittleness. This paper presents an alternative approach using flexible polyurethane polymers to produce lightweight inexpensive grids with much improved damage tolerance and ease of handling, which also possess interesting selectivity characteristics. The material selection, design and development tests are described first, then preliminary sea trial results are presented. A flexible grid with a 20 mm spacing between bars performed successfully and enabled a reduction in...
Tipo: Text Palavras-chave: Damage resistance; Polyurethane; Nephrops; Grid; Size selection; By catch; Selectivity.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1690.pdf
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Etude et mise au point d'un chalut muni d'une grille sélective à langoustine (Campagne selmerl 2, juin 2002 ) ArchiMer
Morandeau, Fabien; Meillat, Marc.
Poursuite des essais de mise au point d'une grille sélective à langoustine des mois avril et mai 2002. Des chaluts jumeaux sont utilisés afin de comparer le dispositif à tester. La zone couverte concerne la pêcherie langoustine et merlu dans le sud ouest des îles Glénan et l'ouest de l'île de Groix. La période est le mois de juin, époque favorable pour les espèces mentionnées ci-dessus. Deux nouvelles grilles bizeautées ont été réalisée par le laboratoire matériaux et structure du centre IFREMER de Brest . Les premiers résultats sont négatifs en ce qui concerne le «tri» de la langoustine effectué par la petite grille souple bizeautée .
Tipo: Text Palavras-chave: Breizline; Codend; Nephrops grid; Grid; Selectivity; Fishing; Chaussettes; Polyéthylène; Breizline; Cul de chalut; Grille à langoustines; Grille; Sélectivité; Pêche.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/rapport-6758.pdf
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Lot 1: Reduction of gear impact and discards in deep sea fisheries. Final report ArchiMer
Theret, François; Vincent, Benoit; Lorance, Pascal; Meillat, Marc; Mehault, Sonia; Jarry, Etienne; Comparini, Charline.
This report presents the results of laboratory developments, field experiments and data analyses carried out in the contract MARE/2011/07 - "Studies on the Common Fisheries Policy" - Lot 1 "Reduction of gear impact and discards in deep sea fisheries". The contractual objectives were "(I) to identify and study trawl modification and alternative gear that aim at reducing the impact of the gear on the sea bottom when engaged in deep-sea fisheries, and (II) to identify and study a measure for discard reduction in deep-sea fisheries or fisheries having deep-sea species as a by-catch, pursued with trawls or nets. The measure could consist in gear modifications or catch purification based on the skipper’s strategy to avoid unwanted fish."
Tipo: Text
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00226/33744/32157.pdf
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Mesures sur chaluts jumeaux au bassin d'essai de pêche de Lorient ArchiMer
Meillat, Marc.
These basin tests follow up the campaign done on board the n/o GWEN-DREZ from 12 November to 6 December 1985 with the goal of observing the respective behaviours of the twin trawls and the single trawl of the same type. The mock-ups created for the basin are derived from 23.90 metre shrimp trawls assembled by LE DREZEN Company following an IFREMER plan for COTONEC Company in Guyana.
Tipo: Text Palavras-chave: Model; Flume tank; Twin trawls; Fising technology; Maquette; Technologie des pêches; Bassin d'essai; Chaluts jumeaux.
Ano: 1986 URL: http://archimer.ifremer.fr/doc/1986/rapport-2668.pdf
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Observation en bassin du chalut pélagique a recouvrement de ventre ArchiMer
Meillat, Marc.
Following a mission made by J.P. George on board trawls testing tunny fishing by using a pelagic "boeuf" trawl in September 1987 (because these tests were very promising), IFREMER became interested in designing a trawl more adapted to this type of fishing, known as surface fishing, it was therefore decided to create a mock-up to scale of the trawl that folds down from the bottom.
Tipo: Text Palavras-chave: Fishing technology; Pelagic trawl; Flume tank; Technologie des peches; Chalut pelagique; Bassin d'essai.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/1988/rapport-2747.pdf
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Preliminary results of a trawl fitted with a selective grid for the fishery of benthic species from Celtic Sea and Bay of Biscay ArchiMer
Meillat, Marc; Dupouy, Herve; Bavouzet, Gerard; Kergoat, B.; Morandeau, Fabien; Gaudou, Olivier; Vacherot, Jean-philippe.
The fishery for benthic species (Monkfish, Megrim, Rays, etc ... ) represents for the surrounder countries of the Celtic Sea and the Bay of Biscaye one of the most important activities . An estimate of the discards of the main species resulting from the sorting practice onboard of the trawlers participating in this fishery was made in 1985 and 1991. it was concluded that an important quantity of juveniles of Rays, Megrim and Monkfish are discarded each year causing an important mortality. The aim of the present paper is to present the preliminary results of a selectivity grid fixed on a bottom trawl to limit as possible the discards. Three different grids were tested at sea during surveys with different results. The major problem is due to difference in...
Tipo: Text Palavras-chave: Chalut sélectif; Grille; Mer Celtique; Golfe de Gascogne; Baudroies; Sardines; Raies; Selectivity; Grid; Trawl; Celtic Sea; Bay of Biscaye; Monkfish; Megrim; Rays.
Ano: 1991 URL: https://archimer.ifremer.fr/doc/00394/50567/51258.pdf
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Sécurité et conditions de travail à la pêche artisanale et semi-industrielle ArchiMer
Andro, M; Dorval, P; Le Bouar, G; Le Roy, Y; Roullot, C; Prado, J; Meillat, Marc; Le Pluart, C.
Ifremer is honoured to publish this study, conducted under the supervision of Prof Dorval. Not only are the issues addressed in this study important and timely, but the methods employed are exceptionally pertinent and original. Two major issues dominate the current affairs in professional fishing: safety and competitiveness. Recent, dramatic events have brought fishing vessel safety and working conditions back to the forefront of national preoccupations. Once again, all those-administrative bodies, sector professionals, fishers, boat builders and fishing gear designers, researchers-confronted with the difficulty of finding satisfactory solutions to this distressing problem wonder what actions should be taken....
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Ano: 1987 URL: http://archimer.ifremer.fr/doc/1987/rapport-4341.pdf
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Validation du TED et essais d'une nouvelle grille sélective dans la pêcherie crevettière de Guyane2007 ArchiMer
Meillat, Marc; Morandeau, Fabien; Achoun, Joseph; Barthelemy, Patricia.
This work is in line with the fishing technology section of the DUHAL (Durability of Halieutic activities) action. It aims to reduce the "side" catches associated with shrimp fishing in French Guyana. Shrimp trawling is indeed considered as one of the fishing activities which generates the most waste. The campaign carried out in November/December 2006 had lead to the following conclusions [...]
Tipo: Text Palavras-chave: Bycatch Reducing Device; Radial Escape Section; Duhal; Survey campaign; Shrimp; Selectivity; Grille Nordmore; Mailles carrées; BRD; RES; TED; Duhal; Grille; Campagne à la mer; Crevette; Sélectivité.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/rapport-6683.pdf
Registros recuperados: 14
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