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Registros recuperados: 14
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Apports nutritifs et bactériens en estuaire de Penzé. Année 2000 ArchiMer
Piriou, Jean-yves; Droit, Julie.
L'estuaire de la Penzé (nord-Finistère, France) est le siège de plusieurs dysfonctionnements de type biologique (eutrophisation et contaminations bactériennes) qui nécessitent une bonne connaissance et un suivi des apports d'origine terrigène susceptibles d'influencer ou de provoquer ces phénomènes. Une étude sur ce secteur test a permis la mise au point d'une méthodologie de suivi des apports à l'estuaire. Celle-ci se fait en quatre étapes: 1. Inventaire des paramètres de suivi des apports. • Dans le cas de la prolifération des macroalgues du genre ulva et des microalgues toxiques Alexandrium minutum, les différents apports nutritifs azotés, phosphorés et siliceux ont été mesurés. • Dans le cas de la contamination des mollusques bivalves d'ostréiculture...
Tipo: Text Palavras-chave: Apports; Bactéries; Bassins versants; Contamination; Eutrophisation marine; Rejets; Sels nutritifs.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00105/21660/19241.pdf
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Caractérisation empirique et détaillée des captures : Contribution à l'approche écosystémique des pêches ArchiMer
Fauconnet, Laurence.
The ecosystem approach of sheries requires to rethink sheries management at integrated scales. Knowledge on shing pressure at the community level remains limited while pressure is the lever by which management operates. This work aims at characterizing in detail catches, that is indirectly shing pressure, and to link its components to different management objectives. For doing so, this work relies on analyses of at-sea observer data. The ecosystem approach of sheries requires to rethink sheries management at integrated scales. Knowledge on shing pressure at the community level remains limited while pressure is the lever by which management operates. This work aims at characterizing in detail catches, that is indirectly shing pressure, and to link its...
Tipo: Text Palavras-chave: Pression de peche; Metriques de diversite; Rejets; Communautes marines; Gestion ecosystemique des peches; Selectivite; Observations a bord des navires de peche professionnelle; Comparaison d'engins; Analyses multivariees.; Shing pressure; Diversity metrics; Discards; Marine communities; Ecosystem approach to fisheries; Selectivity; Observations onboard professionnal fishing vessels; Gear comparison; Multivariate analyses.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00256/36717/35331.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 d'une gestion optimale des pecheries de langoustines et de poissons demersaux en mer Celtique ArchiMer
Laurec, Alain; Charuau, Anatole; Perodou, Jean-bernard; Nedelec, Daniel; Biseau, Alain; Durand, Jean-louis; Rivoalen, Jean-jacques; Dupouy, Herve; Le Louarn, G.; Leroux, L..
The general study, scheduled from 1984 to 1986, aims at providing a judgement about the fisheries in the Celtic Sea. This area has been chosen because it is frequented by EEC vessels with, for the time being, a large majority of French vessels. Activities there are easier to monitor than anywhere else as coastal fisheries are little developed in the area. The final product will consist of a certain number of hypotheses about the planning strategies that could be implemented in the Celtic Sea. The main idea is, firstly, to conduct analytical studies, stock by stock, in order then, to synthesize them into a model integrating the interactions between fleets in relation to their target species. A bio-economical model, deriving from the latter, will enable the...
Tipo: Text Palavras-chave: Monk; Cuckoo ray; Blue whiting; Cod; Hake; Ling; Common dab; Data bases; Fishing statistics; French fisheries; Demersal fish; Nephrops; Celtic Sea; Baudroies; Raie fleurie; Julienne; Cardine; Morue; Merlu; Merlan; Base de données; Rejets; Statistiques de pêche; Pêcheries françaises; Poissons demersaux; Langoustine; Mer Celtique.
Ano: 1985 URL: http://archimer.ifremer.fr/doc/1985/rapport-3671.pdf
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Etude d'une gestion optimale des pecheries de langoustines et de poissons demersaux en mer Celtique (phase 1) ArchiMer
Biseau, Alain; Noel, Philippe; Ottenheimer De Gail, G.; Rivoalen, Jean-jacques.
This study of the demersal and benthic fisheries in the Celtic Sea is the logical continuation of the works conducted on the scampi fisheries since 1978. The program of the first phase of the study consists of 1 - A description of fisheries in the Celtic Sea. 2 – An assessment of the rejection of the marketable species in each fishery, with a special mention for fish fisheries. 3 – The constitution a computerized database including international fishing statistics since 1980. 4 – The sampling of the unloading of seven main species or groups of species: - cod and whiting, already sampled (length and age) regularly since 1978 in order to provide data to the CIEM workgroup. "Irish Sea – Bristol Channel", - scampi, sampled since 1980 in the scope of the CIEM...
Tipo: Text Palavras-chave: Cartography; Ray; Monk; Common dab; Hake; Demersal fish; Nephrops; Celtic Sea; Cartographie; Rejets; Raie; Baudroie; Cardine; Merlu; Poissons demersaux; Langoustines; Mer Celtique.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/rapport-3672.pdf
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Guide méthodologique pour l'élaboration des dossiers de demande d'autorisation d'Installations Classées pour la Protection de l'Environnement (ICPE) en matière de pisciculture marine pour la région Corse ArchiMer
Roque D'Orbcastel, Emmanuelle; Sauzade, Didier; Ravoux, Georges; Coves, Denis.
Sea fish farms with production of more than 20 tons per year in France must obtain two operating licences: (i) one for Sea Farming (AECM), with the aim of ensuring that the granted site and use of the maritime public domain for exploitation will respect all restrictions of general interest; (ii) one for regulating Facilities Classified for the Protection of the Environment (ICPE). Although the first one requires a relatively simple licence request file, the second one demands a very complete file, which includes, beyond the notice of exploitation information, a complete impact study, as well as a hazards study and a health and safety notice. In this context, petitioners in Corsica (adjustment of status or new exploitation) are faced with the same...
Tipo: Text Palavras-chave: Specifications; Study of dangers; Effluent; Potential impact; Impact survey; Exploitation; Demand; Marine fish culture; Corsica; Classified installations for the environment protection (CIEP); Methodological guide; Cahier des charges; Etude de dangers; Rejets; Impacts potentiels; Etude d'impact; Exploitation; Demandeur; Pisciculture marine; Corse; Installations Classées pour la Protection de l'Environnement (ICPE); Guide méthodologique.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/rapport-2188.pdf
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Guide méthodologique pour l'élaboration des dossiers de demande d'autorisation d'Installations Classées pour la Protection de l'Environnement (ICPE) en matière de pisciculture marine pour la région Corse - 2003 ArchiMer
Roque D'Orbcastel, Emmanuelle.
Les piscicultures marines de plus de 20 t/an de production sont soumises en France à l’obtention de deux autorisations d’exploiter : (i) celle au titre des Cultures Marines (AECM), visant à s’assurer que le site concédé et l’usage du domaine public maritime pour l’exploitation permettent de respecter l’ensemble des contraintes d’intérêt général ; (ii) celle au titre de la réglementation des Installations Classées pour la Protection de l’Environnement (ICPE). Si la première nécessite un dossier de demande d’autorisation relativement simple, la seconde requiert un dossier très complet, qui comprend, outre une notice de renseignementssur l’exploitation, une étude d’impact complète, ainsi qu’une étude des dangers et une notice d’hygiène et de sécurité. Dans ce...
Tipo: Text Palavras-chave: Guide méthodologique; Installations Classées pour la Protection de l’Environnement (ICPE); Corse; Pisciculture marine; Demandeur; Exploitation; Étude d’impact; Impacts potentiels; Rejets; Étude de dangers; Cahier des charges.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/00223/33469/31873.pdf
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Influence de la mise en culture de l'Ilot des Tannes sur la qualité bactériologique des eaux du chenal de Brouage - Campagnes 1985-1986 ArchiMer
Masson, Daniel; Faury, Nicole; Ratiskol, Jacqueline.
Les agriculteurs aménageant quelques centaines d'hectares du marais doux de Hiers Brouage (mise à plat, drainage) afin de le mettre en culture, il était important de pouvoir mesurer l'impact que peuvent avoir les rejets de drainage-pompage dans le milieu marin par l'intermédiaire des chenaux ostréicoles. Ceci afin d'éviter d'éventuels conflits entre groupes socio-professionnels (agriculteurs et conchyliculteurs) en proposant des mesures et de solutions. Un suivi est donc effectué à la demande des administrations, en collaboration avec l'INRA et le CEMAGREF, lesquels assurent le suivi de la lagune de décantation des eaux de drainage. L'IFREMER prenant en compte le milieu récepteur (chenaux du Grand Garçon et de Brouage). A raison de cinq sériées de...
Tipo: Text Palavras-chave: Qualité des eaux; Agriculture; Rejets; Marais maritimes; Chenal de Brouage; Charente-Maritime.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/00087/19850/17500.pdf
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Integration of discards in the roundnose grenadier stock assessment in ICES division Vb, subaera VI, VII ArchiMer
Pawlowski, Lionel; Lorance, Pascal.
We present a series of exploratory stock assessments for roundnose grenadier (Coryphaenoides rupestris) from estimates of catch data based on information and assumption of discards and landing statistics. It is a common practice to consider landings data as a substitute of catch data to perform stock assessments. When a significant portion of the catch is discarded, this assumption is likely to be misleading as assessment methods will provide underestimated stock size.
Tipo: Text Palavras-chave: Abundance; Deep fishing; Discards; Stock assessment; Roundnose grenadier; Abondance; Pêche profonde; Rejets; Évaluation de la ressource; Grenadier de roche.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/rapport-7440.pdf
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Optimisation de deux systèmes de production piscicole : biotransformation des nutriments et gestion des rejets ArchiMer
Roque D'Orbcastel, Emmanuelle.
Sustainability of fish aquaculture is currently subjected to environmental protection enhancement and to increasing restrictions of water and energy availability. The aim of this work was to study the biotransformations and waste management in a salmonid french farm (Charles Murgat S.A.S, Isère). Quantification of the wastes is necessary for the farmers and administrations to define control tools and treatment systems in view of water legislation respect (French water low, EC Water Framework Directive). The nutritional method gives a direct relation between feed and effluent fluxes. This method is easier to use than the hydrobiological method, which requires precise flow rate and concentration measurements (difficult and expensive). Solid waste treatment...
Tipo: Text Palavras-chave: Traitement de l'eau; Rejets; Analyse du cycle de vie; Bien être; Recirculation; Biotransformations; Salmonidés; Pisciculture.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/these-3893.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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Pylar - Reconnaissance biomorphosédimentaire des fonds marins au large de Dieppe - Le Tréport (Seine Maritime ; France) ArchiMer
Dreves, Luc; Clabaut, Philippe; Tetard, Alain; Augris, Claude; Chevalier, Claire.
La reconnaissance des fonds sous-marins au large de Dieppe - Le Tréport est effectuée en 1993 à la demande d'Electricité de France. Cette étude comprend deux volets : - la description sédimentologique, hydrobiologique et halieutique d'une zone de près de 150 km² située entre 10 et 14 milles de la côte ; - la détermination, dans cette zone du large, des secteurs les plus favorables à des dépôts de dragages de sédiments issus du canal d'amenée de la Centrale électronucléaire de Penly
Tipo: Text Palavras-chave: Benthos; Biologie; Centrale électronucléaire; Dragage; Halieutique; Morphologie; Pelagos; Rejets; Sédimentologie; Sonar latéral; Swveillance.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00082/19352/16946.pdf
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The French experience in sampling discards at sea in the European waters ArchiMer
Tetard, Alain; Gaudou, Olivier; Lespagnol, Patrick; Peronnet, Isabelle; Rochet, Marie-joelle; Vigneau, Joel.
This study covered a one year period using onboard observers (117 days at sea). The aim was to sample "métiers" known for their discarding side effects: fixed netting, inshore and offshore trawling. The objectives were (i) the collection of information on the demographic structure of the catches for the main exploited species and (ii) the identification of factors explaining discards, in order to find relevant management measures
Tipo: Text Palavras-chave: Celtic Sea; French trawlers; Sampling; Observers; Discard; Metiers; Mer Celtique; Chalutiers français; Échantillonnage; Observateurs; Rejets; Metiers.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-6129.pdf
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When discards survive: Accounting for survival of discards in fisheries assessments ArchiMer
Mesnil, Benoit.
When discards data are included in fish stock assessments, it is generally assumed that all discarded animals die. However, there are fisheries in which a significant fraction of discards are able to survive. This case can be treated with a simple extension of the usual analytical model of exploited populations, enabling Virtual Population Analysis (VPA) to be used for parameter estimation. The paper examines the effects on estimates obtained by VPA when discards are allowed to survive, and validates a procedure for deriving partial fishing mortalities in multiple-fleet fisheries where discarding and survival rates are fleet specific.
Tipo: Text Palavras-chave: Évaluations de stocks; Rejets; Analyses de cohortes; Pêcheries multi-métiers; Stock assessment; Discards; Virtual Population Analysis; Multiple-fleet fisheries.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00179/29032/27466.pdf
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