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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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Campagne SELECT 13 N/O Gwen-Drez - Du 10 au 28 avril 1997 ArchiMer
Morandeau, Fabien.
Influence of the nature of the twine on the codend selectivity: Reminder: During the “SELECT 12” campaign in April 1996, we demonstrated that the nature of the material used for the manufacture of the trawl codend has an influence on the selectivity. Results showed that the use of single twine made of polyamide in the codend was more selective on hake and Nephrops than single twine made of polyethylene. Nevertheless single twine made of polyamide codend loses “flexibility” with use and therefore a study should be done to investigate its impact on selectivity (fishermen do not often use this equipment: however this 150 mesh net is particularly selective and it would be premature to discard it). Influence of the diameter of the twine and the mesh number on...
Tipo: Text Palavras-chave: Sélectivité des culs de chalut.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00347/45786/45760.pdf
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Compléments à la réponse à la saisine 2008-1014 sur les pressions potentielles des engins de pêche sur les habitats et espèces listés dans les Directives Habitats (92/43/EEC) et Oiseaux (2009/147/CE), pour les sennes danoises et écossaises ainsi qu’envers les récifs côtiers et les récifs circalittoraux. ArchiMer
Biseau, Alain; Le Mao, Patrick; Sartoretto, Stephane; Tourolle, Julie; Menot, Lenaick; Fabri, Marie-claire; Larnaud, Pascal; Drogou, Mickael; Morandeau, Fabien; Vacherot, Jean-philippe; Vermard, Youen.
Tipo: Text
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00300/41147/41077.pdf
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Compte-rendu de la campagne de pêche expérimentale de l'espadon à la palangre dans la région de l'Atlantique nord par les navires de l'Ile d'Yeu "De Coubertin" et "La Gabrielle" ArchiMer
George, Jean-paul; Morandeau, Fabien.
Cette campagne de pêche expérimentale a permis de tester la palangre pélagique en vue d'une possible diversification de la flottille artisanale de la côte atlantique.
Tipo: Text Palavras-chave: Technologie pêche; Palangre; Espadon.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00071/18266/15829.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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Essais de casiers à langoustines dans la fosse de Capbreton ArchiMer
Morandeau, Gilles; Morandeau, Fabien; Duclercq, Benoit.
Scampi (Nephrops norvegicus) is traditionally fished with bottom trawls on muddy grounds. Some trawlers from Bayonne fish it from May to August in the south of the Bay of Biscay. The Capbreton area is partly forbidden to trawling and net fishing (see appendix 1) In spring and summer, it is frequented by a fleet of about fifteen vessels, among which are some lining vessels, fishing hake, and a few pot vessels, targeting crabs. Some of these vessels could be interested in using scampi traps in this area in order to be more versatile and, to a certain extent, to diminish their economical vulnerability through a diversification of the revenues generated by another high market value species. Ifremer offered to assess a new tool: scampi trap, on the Basque and...
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Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/rapport-3470.pdf
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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
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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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Etude préliminaire pour la mise au point et le développement d'un chalut muni d'une grille sélective à langoustine ArchiMer
Morandeau, Fabien.
This study is part of the trawl selectivity program carried out on behalf of the local fisheries committee of Le Guilvinec. It aims to study the possibility of saving young scampis through the use of trawls equipped with "sorting grids". The covered area focuses on scampi and hake fisheries. The chosen period stretches from September to November 2000. Two vessels went out to sea as a first contribution to the study: the "hippocampe" and the "Gwen Vidic", both from Le Guilvinec.
Tipo: Text Palavras-chave: Galathée; Merlu; Rejet langoustine; Grille langoustine.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/rapport-3888.pdf
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Evaluation du taux de survie des captures indésirées de langoustines "Nephrops norvegicus" pêchées au chalut de fond dans le golfe de Gascocgne ArchiMer
Merillet, Laurene; Kopp, Dorothee; Morandeau, Fabien; Mehault, Sonia; Rimaud, Thomas; Piton, C.
In the context of the reform of the Common Fishing Policy (CFP) undertaken by the European Union and implemented since 1st January 2014, the discarding of unwanted catches will gradually be forbidden. Article 15 of the CFP lays down a landing obligation for all species subject to European quotas and will come into force between 2015 and 2019 according to the species and the zones. The Regulation allows several exemptions including one for "species for which scientific proof shows high survival rates, due to the characteristics of the fishing gear, the fishing methods and the ecosystem" (EU Regulation No. 1380/2013). In particular, Nephrops were identified by the International Council for the Exploration of the Sea (ICES) as one of the species having the...
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Ano: 2017 URL: http://archimer.ifremer.fr/doc/00378/48953/49357.pdf
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HYDROTAMIS. Evaluation et amélioration de la qualité des captures de civelles de l’UGA Loire, côtiers vendéens et Sèvre niortaise ArchiMer
Pengrech, Alexis; Morandeau, Fabien; Vincent, Benoit.
La qualité des captures de civelles occupe une importance croissante pour optimiser les projets de repeuplement en France et en Europe et pour mieux valoriser la production. Aussi le Comité régional des pêches maritimes et des élevages marins des Pays de la Loire (COREPEM) a initié une étude visant à améliorer la qualité des captures de civelles de l’UGA LCV, première unité de gestion nationale en nombre de licenciés et en volume de production. Pour réaliser cette étude, le COREPEM s’est appuyé sur l’Ifremer (Laboratoire de Technologie Halieutique de Lorient), le Syndicat mixte pour le développement de la pêche et de l’aquaculture en Pays de la Loire (SMIDAP) et l’Association des pêcheurs professionnels de Loire-Atlantique (AADPPMFEDLA). Ce projet se...
Tipo: Text Palavras-chave: Civelle; UGA LCV; Région Pays de la Loire; Estuaires; Pêcheurs professionnels; Amélioration de la qualité des captures; Tamis à civelles; Hydrodynamisme..
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00292/40296/38734.pdf
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Improving gear selectivity of whiting ( Merlangius merlangus ) on board French demersal trawlers in the English Channel and North Sea ArchiMer
Vogel, Camille; Kopp, Dorothee; Morandeau, Fabien; Morfin, Marie; Mehault, Sonia.
In the English Channel and Southern Bight, French demersal trawlers target a mix of demersal species including whiting (Merlangius merlangus). The discard ban to be implemented in January 2016 motivated fishermen to look for technical measures to reduce unwanted catches of undersized individuals (<27 cm). From 2008–2014, 18 different gear configurations were tested for bycatch reduction on board fleets of vessels of 16–20 m and 20–24 m. Selective devices tested included grids, square mesh panels (SMP), square mesh cylinders (SMC), various combinations of these devices and large mesh trawls. Using the catch comparison method, our results focus on six devices that proved efficient to reduce catches of undersized whiting, equally divided between the two...
Tipo: Text Palavras-chave: Square mesh; Sorting grids; Fishing gear technology; Merlangius merlangus; Catch comparison; GLMM.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00384/49553/50079.pdf
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Informations sur les améliorations de la sélectivité des espèces/engins visés par les exemptions de minimis ArchiMer
Larnaud, Pascal; Mehault, Sonia; Morandeau, Fabien.
Ce travail vise à évaluer les possibilités d’amélioration de la sélectivité pour les espèces / engins /zones visées par les exemptions de minimis (annexe 1), en fonction des données bibliographiques ou de résultats d’études.
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Ano: 2019 URL: https://archimer.ifremer.fr/doc/00506/61730/65708.pdf
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Lorient Flume tank ArchiMer
Vincent, Benoit; Simon, Julien; Vacherot, Jean-philippe; Morandeau, Fabien; Larnaud, Pascal; Kopp, Dorothee; Mehault, Sonia; Morfin, Marie; Savina-rolland, Marie; Marc, Emilie.
The Lorient flume tank is an hydrodynamic facility available for any qualification and observation of submerged objects in still or moving water. It is a closed loop circulating tank filled with fresh water.  The fluid is moved with a 70 kW pump-motor with a velocity between 0 and 1 m/s and homogenized with a series of pressure drop systems. The overall dimensions are 24.50 m long, 7.50m wide and 3.30 m high. The part where experiments can be set up is 12m long, 2.6 m wide and 1.5 m deep.  A mobile bottom belt can be synchronized with the water flow velocity and enables to simulate the seabed velocity relatively to a towed object. The overall process of the facility is controlled by a user friendly interface.
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Ano: 2018 URL: http://archimer.ifremer.fr/doc/00436/54803/56299.pdf
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LOUPE- Observation de l'habitat et des communautés associées dans le contexte des pêcheries du Gouf de Capbreton ArchiMer
Morandeau, Gilles; Sanchez, Florence; Caill-milly, Nathalie; Morandeau, Fabien.
Le projet LOUPE a pour objectif général d’acquérir des données complémentaires relatives aux pêcheries à partir d’observations à la mer sur des navires professionnels, avec le recueil de données spatialisées de l’effort de pêche et des captures associées (commerciales et rejets). Ces données sont complétées par un questionnaire socio-économique. Le but est de fournir des indicateurs simples prenant en considération les dimensions écologiques, économiques et sociales pour éclairer les choix des gestionnaires et favoriser la mise en œuvre et l’efficacité de la gouvernance pêche dans cet espace. Le projet propose également de mettre en œuvre un système vidéo fixe et autonome (VECOC) pour réaliser des observations vidéo sous-marines et permettre ainsi...
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Ano: 2013 URL: http://archimer.ifremer.fr/doc/00154/26568/24699.pdf
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Observations ichtyologiques effectuées en 1990 ArchiMer
Quero, Jean-claude; Du Buit, M.h.; Kergoat, Bernard; Laborde, Jean-louis; Morandeau, Fabien.
The authors give data on the catches during 1990 of some rare fishes to the French harbours: Chlamydoselachus anguineus, Oxynotus paradoxus, Sarda sarda, Katsuwonus pelamis, Centrolophus niger; Cubiceps gracilis et Stromateus fiatola. They give also data on Ihe catches with a bottom trawl of 3 Xiphias gladius. Some data on Mediterranean observations by helicopter on the behaviour of Cethrinus maximus are given. NOT CONTROLLED OCR
Tipo: Text
Ano: 1991 URL: http://archimer.ifremer.fr/doc/1991/publication-3681.pdf
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OBSERVHAL96, campagne d'observations à finalité halieutique ArchiMer
Latrouite, Daniel; Antoine, Loic; Cosson, Nathalie; Danel, Patrick; Desaunay, Yves; Dupouy, Herve; Galgani, Francois; Lorance, Pascal; Morandeau, Fabien; Morizur, Yvon; Rivoalen, Jean-jacques; Sacchi, Jacques; Troadec, Herve.
The scientific cruise Observhal96 took place in August 4-27, 1996 with the underwater system for exploration and intervention « Cyana » and the support vessel « Suroît ». The goal of this IFREMER first use of a man opereted submersible for a fisheries study was to observe fishes and invertebrates in their environment, as well as fishing gears in operation. All the dives, 2 to 5 hours long, took place off Brittany in Atlantic. Five were shalower than 100 meters, nine between 100 and 200 meters, one at 400 meters and for deeper than 1000 meters. Six dives have been dedicated to in situ study of the impact of fishing gears : observation of the geometry of a monkfish tramel net and analysis of losses during hauling ; tracks of a bottom trawl and relative...
Tipo: Text Palavras-chave: Fish behaviour; Fishery ecology; Submarine Cyana; Dive; Underwater observation; Comportement des poissons et invertébrés; Ecologie halieutique; Submersible Cyana; Observation sous marine.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/1996/rapport-1554.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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Projet CELSELEC. Amélioration de la sélectivité des chalutiers hauturiers en mer Celtique ArchiMer
Lamothe, Julien; Larnaud, Pascal; Fiche, Marion; Robert, Marianne; Morandeau, Fabien; Vacherot, Jean-philippe; Scavinner, Marion; Simon, Julien.
In the context of the new European Common Fisheries Policy and in particular the Landing Obligation, this report synthesizes the trials which were carried out between 2014 and 2016 on French bottom trawlers operating in the Celtic Sea and Western Channel, to decrease their discards. All the detail of the experiments and their results are attached in the voluminous appendices. After a state of the art and various workshops organized in partnership between fishermen, equipment manufacturers and scientists, 3 basic devices were selected for the trials, according to the main fisheries: - 100 mm square meshes cylinder - SMC - (in addition to the mandatory 100mm and 120 mm square mesh panels - SMP) with or without scaring floats ; - Extension + codend in...
Tipo: Text Palavras-chave: Sélectivité; Mer Celtique; Cylindre à mailles carrées; T90; Grille à baudroie; Rejets; Églefin; Merlan; Sanglier; Selectivity; Celtic Sea; Square mesh cylinder; T90; Monkfish grid; Discards; Haddock; Whiting; Boarfish.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00403/51488/52084.pdf
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Rapport d’étude final du projet REJEMCELEC - Réduction des Rejets en Manche et mer Celtique par la Sélectivité des engins de pêche ArchiMer
Lavialle, Gael; Morfin, Marie; Simon, Julien; Morandeau, Fabien; Vimard, Mathieu; Larnaud, Pascal.
In the context of the new European Common Fisheries Policy and in particular the Landing Obligation, the two Producers Organisations, COBRENORD and  OPN launched the REJEMCELEC project in partnership with IFREMER and net suppliers. It was set in a complementary way to the CELSELEC project. The main goal is to reduce whiting, haddock and pelagic discards for single bottom trawlers fleets targeting whiting, squids, cuttlefish and monkfish within the Western Channel. A specific fleet targeting hake and John Dory in Celtic Sea during summer (around Scilly Island) was also studied in order to reduce discards of small haddock, hake and boarfish. After a state of the art, an analysis of quantitative data and various workshops organized in partnership between...
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Ano: 2018 URL: https://archimer.ifremer.fr/doc/00483/59493/62412.pdf
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