Consulta: creatorFacets:"Leaute, Jean-pierre"
Registros recuperados: 56
Data/hora: 04/06/2024 17:17:28

Grands invertébrés et poissons observés par les campagnes scientifiques. Atlas de distribution. Bilan 2008
Provedor de dados: 5
Autores: Trenkel, Verena; Berthele, Olivier; Lorance, Pascal; Bertrand, Jacques; Brind'Amour, Anik; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Mahe, Jean-claude; Morin, Jocelyne; Rochet, Marie-joelle; Salaun, Michele; Souplet, Arnauld; Verin, Yves.
Depuis une vingtaine d'années, l'Ifremer organise des campagnes de pêche scientifique en mer du Nord, Manche, Atlantique et Méditerranée concernant les ressources pélagiques, démersales et benthiques. L'objectif prioritaire est de produire des indices d'abondance des principales espèces commerciales. Elles recueillent également des données sur les espèces capturées non commerciales.  Les campagnes sont réalisées selon des plans d'échantillonnage standardisés. L'engin de pêche et son gréement, la position des stations, le tri des captures, les prélèvements biologiques suivent des protocoles fixés. Chaque zone étudiée est découpée en fonction de la profondeur, de la latitude ou d'autres critères. L'échantillonnage prévoit un nombre de traits de chalut...
Tipo: Text
Palavras-chave: Populations; Halieutique; Bulletin; Méditerranée; Golfe de Gascogne; Manche; Mer du Nord; France; Pêche; Campagnes à la mer; Atlas; Survey; Mediterranean Sea; Bay of Biscay; English Channel; North Sea; France; Populations; Fishery science; Bulletin; Atlas.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/rapport-6976.pdf

Typologies et composantes des flottilles du sud du Golfe de Gascogne en 1986 - de Noirmoutier à Bayonne
Provedor de dados: 5
Autores: Decamps, Philippe; Leaute, Jean-pierre.
This document presents an analysis of the fishing fleet operating in the Southern Bay of Biscay, based on vessel characteristics and records of fishing activities during 1986, using multivariate ordination techniques. It reveals groups of vessels having similar fishing patterns with regard to utilization of various gears, areas fished and species caught. The results have potential interest for fisheries biologists, and also for economists and regional or national managers.
Tipo: Text
Palavras-chave: Typologie; Composantes; Flottilles; Golfe de Gascogne.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00266/37734/35748.pdf

Caractéristiques des petites pêches côtières et estuariennes de la côte atlantique du sud de l'Europe - Rapport final - France - Sud golfe de Gascogne
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie.
Tipo: Text
Palavras-chave: Côtes atlantiques de l'Europe; Golfe de Gascogne; Côtes portugaises; Typologie; Enquêtes socio-économiques; Flottilles de pêche côtière et estuarienne; Indicateurs économiques; European Atlantic coasts; Bay of Biscay harbours; Portuguese coasts; Fishing typology; Socio-economic inquiries; Coastal and estuarian fishing fleet; Economics factors.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00327/43813/43387.pdf

Rapport de la campagne SOLPER 1 (26 août – 2 septembre 2005)
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
To estimate the size and abundance distribution of juvenile sole (Solea solea) of nurseries in the Pertuis charentais (France) in 2005, a small beam trawl of 2 m wide and 8 mm stretched mesh was used over a hundred sampling points. The other fish catches have also been recorded.
Tipo: Text
Palavras-chave: Pertuis charentais; Chalut à perche; Nourricerie; Sole commune; Solea solea; Juvéniles; Taille; Abondance; Pertuis charentais (France); Beam trawl; Nursery; Juvenile sole; Solea solea; Length; Abundance.
Ano: 2006

ROMELIGO : Improvement of the fishery knowledge of striped red mullet, whiting and pollack of the Bay of Biscay. The whiting part.
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie; Lissardy, Muriel.
This document present the whiting part of the study Striped red mullet (Mullus surmuletus), whiting (Merlangius merlangus) and pollack (Pollachius pollachius) are three species for which individualization of stocks is advanced by ICES in western Europe for areas including the Bay of Biscay and the areas bordering the Iberian peninsula. Since 2012, ICES has provided recommendations with regards to these stocks. These recommendations are given for two‐year periods and are based on an approach adopted by ICES in 2012 in the case of insufficient data for an analytical evaluation (Data Limited Stocks, DLS). For 2013 and 2014, ICES recommended reducing catches by 20% as a precautionary measure compared to 2009‐2011 for the three stocks. Considering that TACs are...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00413/52452/53233.pdf

Descriptif des flottilles et des  activites halieutiques des quartiers  du sud golfe de Gascogne en 1986. Noirmoutier à Bayonne
Provedor de dados: 5
Autores: Decamps, Philippe; Leaute, Jean-pierre.
This document produce a description of the fishing fleet of the ports of south bay of Biscaye (french atlantic coast between Noirmoutier and Hendaye) in 1986, with the aid of statistical data on landings from officials markets or not. This is a first analysis on fishing boats, fishing: gears and areas usings, and mean species.
Tipo: Text
Palavras-chave: South bay of Biscaye; Fleet; Fishing; Sud golfe de Gascogne; Flottille; Pêche.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/rapport-1570.pdf

Les flottilles de pêche des pertuis charentais vues du ciel – campagne 2005
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
To identify fishing areas operated by professionals fishing vessels in Pertuis charentais, a survey of 11 bimonthly aerial census was carried out from May to October 2005. The connection with the species landed by these vessels, and the link with bottom of the sea operated by them was studied.
Tipo: Text
Palavras-chave: Flottille de pêche; Pertuis charentais; Survol aérien; Débarquements; Saisons de pêche; Indice de sélection; Fishing fleet; Pertuis charentais; Aerial census; Landings; Fishing periods; Bottom selection index.
Ano: 2006

Typologies et composantes des flottilles du sud du golfe de Gascogne, en 1989. Comparaison de 1986 et 1989. De Noirmoutier à Bayonne
Provedor de dados: 5
Autores: Decamps, Philippe; Leaute, Jean-pierre.
This document presents an analysis of the Southern Bay of Biscay fishing fleet based on records of fishing activities during 1989, using the same variables and multivariate ordination techniques than 1986's analysis. It reveals groups of vessels having similar fishing patterns with regard to utilization of various gears, areas fished and species caught. The components of the 2 years are compared and evolutions of fishing fleet studied.
Tipo: Text
Palavras-chave: Typologie; Flotilles; Composantes; Golfe de Gascogne; Typology; Fishing fleet; Components; Bay of Biscay.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00266/37730/35740.pdf

Flottilles et pêches maritimes du sud du golfe de Gascogne (dans les quartiers de Noirmoutiers à Bayonne en 1986)
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Decamps, Philippe.
This document produce a description of the fishing fleet of the ports of South Bay of Biscay (French Atlantic Coast between Noirmoutier and Hendaye) in 1986, with the aid of statistical data on landings from officials markets or no. This is a first analysis on fishing boats, fishing gears and areas usings, and mean species.
Tipo: Text
Palavras-chave: South bay of Biscay; Fleet; Fishing; Sud golfe de Gascogne.; Flottille; Pêche.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/rapport-1663.pdf

Caractéristiques des petites pêches côtières et estuariennes de la côte atlantique du sud de l'Europe
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie.
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00327/43798/55302.pdf

Caractéristiques des petites pêches côtières et estuariennes de la côte atlantique du sud de l'Europe.
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie.
The European contract PECOSUDE (Small inshore fisheries of the south of Europe) accepted in 2000 for 2 years concerns French partners (IFREMER, GEOLITTOMER and CEMAGREF), Spanish (AZTI, UPV and IEO) and Portuguese (IPIMAR). For the renegotiation of the PCP in 2002, the aim is to assess the inshore and estuarian fisheries from the Loire to the Portugal. Three levels of study are considered : halieutics (data 1999), socio-economy and marketing (in progress). Frequentation of 12 miles area for France and continental shelf for northern Spain and Portugal, as well as the fishing period lower than 96 hours was determined as the definition of this fishery for the study
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00260/37151/35681.pdf

Faune française de l’Atlantique. Requins .1. Hexanchiformes &amp; Lamniformes (Craniata : Elasmobranchii)
Provedor de dados: 5
Autores: Quero, Jean-claude; Spitz, Jerome; Leaute, Jean-pierre.
French Atlantic fauna. Sharks .1. Hexanchiformes &amp; Lamniformes (Craniata : Elasmobranchii). The fauna of cow sharks (2 species), frilled sharks (1 species) and mackerel sharks (7 species) from the French Atlantic fauna is given.
Tipo: Text
Palavras-chave: Atlantique Français; Requins Hexanchiformes &amp; Lamniformes; French Atlantic; Sharks Hexanchiformes &amp; Lamniformes.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00250/36082/34633.pdf

Surveying the stock of variegated scallop (Chlamys varia) in Pertuis Charentais straits
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Biais, Gerard; Souchet, Hugo.
The Pertuis Charentais are located in the Bay of Biscay in the middle of the French Atlantic coast. They have an area of 1000 square kilometers and consist of two subsets, the Pertuis Breton and the Pertuis d’Antioche. Variegated Scallop represents a major resource for winter fishing fleet that operates in this space. The variegated scallop (Chlamys varia) is a hermaphroditic bivalve mollusc. It lives on sandy bottoms or on muddy bottom with scattered stones or shells on which it is fixed, in waters where the salinity varies from 30 to 40 ‰ and temperature between 8 and 19 ° C. Approximately 150 boats exploit it normally in the area, mainly in the pertuis Breton, in the bank of La Flotte en Ré, where fishing covers generally more than 80% of the country...
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00260/37156/35686.pdf

Grands invertébrés et poissons observés par les campagnes scientifiques. Bilan 2007
Provedor de dados: 5
Autores: Bertrand, Jacques; Brind'Amour, Anik; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lorance, Pascal; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Verin, Yves.
The ecosystems exploited by fishing are complex. The species which are sought after and their distribution rely on numerous processes, in time and space. The understanding of marine ecosystems requires important means and diverse information including those of professional fishing and scientific cruises. At first, scientific fishing cruises aimed to explore marine fauna and discover new halieutic resources. They were in line with the exploration cruises carried out by Prince Albert 1st of Monaco at the end of the XIXth century. However, since the beginning of the 1970s, they have been focusing on the quantification of the resources exploited by fishing. [...] After a series of "Understanding keys" aimed at helping the reader understand the methodology and...
Tipo: Text
Palavras-chave: Mediterranean Sea; Bay of Biscay; English Channel; North Sea; France; Communities; Populations; Fishery science; Indicators; Bulletin; Méditerranée; Golfe de Gascogne; Manche; Mer du Nord; France; Pêche; Campagnes à la mer; Communautés; Populations; Halieutique; Indicateurs; Bulletin.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/rapport-6160.pdf

Fishes from the Bay of Biscay : Growth curve (weight and size) and sexual maturity
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Mahe, Kelig.
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00019/13053/10091.pdf

Faune française de l'Atlantique. Chimères (Craniata : Chondrichthyes : Holocephali)
Provedor de dados: 5
Autores: Quero, Jean-claude; Spitz, Jerome; Leaute, Jean-pierre.
French Atlantic fauna. Rabbit fish (Craniata: Chondrichthyes: Holocephali). The fauna of rabbit fish from the French Atlantic is given : 2 species of Rhinochimaeridae and 4 of Chimaeridae.
Tipo: Text
Palavras-chave: Chimères; Atlantique français; Rhinochimaeridae; Chimaeridae; Rabbit fish; French Atlantic; Rhinochimaeridae; Chimaeridae.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00250/36081/34632.pdf

Les flottilles de pêche des pertuis charentais vues du ciel – Synthèse des campagnes 2004-2005-2006
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
To identify and estimate the evolution of use of fishing areas operated by professionals fishing vessels in Pertuis charentais, from 2004 to 2006, 3 surveys (40 aerial census) were carried out between May and October. The connection with the species landed by these vessels, and the link with bottom of the sea operated by them was studied. Landings of sole (Solea solea) and cuttlefish (Sepia officinalis) were specifically studied.
Tipo: Text
Palavras-chave: Flottille de pêche; Pertuis charentais; Survol aérien; Débarquements; Saisons de pêche; Indice de sélection; Sole; Seiche; Fishing fleet; Pertuis charentais; Aerial census; Landings; Fishing periods; Bottom selection index; Dover sole; Cuttlefish.
Ano: 2008

Caractéristiques des petites pêches côtières et estuariennes de la côte atlantique du sud de l'Europe - Rapport final - Synthèse. (24 mars 2000 - 23 avril 2002)
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
The European contract PECOSUDE (Small inshore fisheries of the south of Europe) accepted in 2000 (n° 99/024) for 2 years involves French partners (IFREMER, GEOLITTOMER and CEMAGREF), Spanish (AZTI, UPV and IEO) and Portuguese (IPIMAR). The aim is to assess the inshore and estuarian fisheries from Loire estuary to Portugal in view of the negotiations of the PCP in 2002. Three main aspects are considered in the study: fisheries monitoring (data 1999), socio-economy and marketing (data 1999 or 2000). Three main criteria have been established to define the limits of the fishing fleet considered in the study : fishing grounds within the 12 miles zone for the French fleet and the continental shelf and slope (down to 1000 m depth) for northern Spanish and...
Tipo: Text
Palavras-chave: Côtes atlantiques de l'Europe; Golfe de Gascogne; Côtes portugaises; Typologie; Enquêtes socio-économiques; Flottilles de pêche côtière et estuarienne; Indicateurs économiques; European Atlantic coasts; Bay of Biscay harbours; Portuguese coasts; Fishing typology; Socio-economic inquiries; Coastal and estuarian fishing fleet; Economics factors.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00327/43795/43357.pdf

Fonctionnement de la nourricerie à sole des pertuis Charentais - Rapport final - Décembre 2010
Provedor de dados: 5
Autores: Biais, Gerard; Leaute, Jean-pierre; Sauriau, Pierre-guy; Loizeau, Veronique; Robert, Serge; Lavesque, Nicolas; Lepareur, Fanny; Aubert, Fabien; Joassard, Lucette; Paticat, François; Roupsard, François.
La sole est la ressource halieutique qui contribue le plus aux débarquements en valeur des pêches réalisées dans le golfe de Gascogne (52 M € en 2007-09). Elle arrive aussi en première place dans les débarquements de la pêche charentaise (8 M € en 2007-09). Une flottille de grands fileyeurs spécialisés dans sa pêche s'est développée dans le golfe de Gascogne, dont certaines des unités les plus performantes sont basées à Royan. Le port de La Cotinière est l'un des premiers pour les débarquements de sole des chalutiers opérant dans le golfe de Gascogne. Cette espèce contribue aussi à l'équilibre financier annuel de nombreux petits bateaux côtiers.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00304/41547/40755.pdf

Variations spatio-temporelles des rendements mensuels des chalutiers dans le golfe de Gascogne, entre 1990 et 1998
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Poulard, Jean-charles; Forest, Andre.
Les populations marines sont distribuées de manière hétérogène dans l'espace et dans le temps en raison de la diversité des habitats et des exigences des cycles vitaux des espèces. L'intensité de l'exploitation varie également en fonction des métiers, de l'espace et du temps qui structurent les stratégies de pêche. L'objectif de l’étude est de caractériser et décrire les relations qui existent entre les modalités d'exploitation des ressources et leur organisation spatiale à différentes échelles de temps.  Dans ce but, l’activité de 164 chalutiers de Lorient, de Saint-Nazaire, des Sables d’Olonne et de La Rochelle opérant dans le golfe de Gascogne est suivie sur la période 1990-1998. Cette approche qui vise à développer les connaissances nécessaires à une...
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00260/37152/35682.pdf

Observations ichtyologiques effectuées en 2008
Provedor de dados: 5
Autores: Quero, Jean-claude; Spitz, Jerôme; Vayne, Jean-jacques; Auby, Isabelle; De Casamajor, Marie-noelle; Leaute, Jean-pierre; Marie, Franck; Quinquis, Jerome.
In 2008, were recorded for the first time Derichthys serpentinus in the Bay of Biscay, Kyphosus sectator in the Pays basque, Liparis montagui in the Charente-Maritime, Boops boops in Normandy. Some juveniles of Dentex dentex were observed in the bassin d'Arcachon in 2007 and 2008. We indicated also the catches of Tetragonurus cuvieri, Callionymus reticulatus, Seriola rivoliana and Brama brama.
Tipo: Text
Palavras-chave: Brama brama; Seriola rivoliana; Callionymus reticulatus; Tetragonurus cuvieri; Dentex dentex; Boops boops; Liparis montagui; Kyphosus sectator; Derichthys serpentinus; French Atlantic; Rare fish; Brama brama; Seriola rivoliana; Callionymus reticulatus; Tetragonurus cuvieri; Dentex dentex; Boops boops; Liparis montagui; Kyphosus sectator; Derichthys serpentinus; Atlantique français; Poisson rare.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6602.pdf

Poissons du Golfe de Gascogne: courbes de croissance (taille et poids) et maturité sexuelle
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Mahe, Kelig.
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00019/13052/10047.pdf

La pêche dans le bassin d'Arcachon
Provedor de dados: 5
Autores: Thimel, Anne; Leaute, Jean-pierre.
Situé sur le littoral aquitain, le bassin d'Arcachon est ouvert sur la marge côtière du golfe de Gascogne. A l'intérieur de cette zone, une activité de pêche est exercée sur des ressources halieutiques qui pour la plupart font partie intégrante de stocks dont l'aire de répartition est beaucoup plus large. Dans le cadre de son programme de recherches 1989-1993, le département !!Ressources Halieutiques" de l' IFREMER est chargé du suivi des ressources et des flottilles du Golfe. Les objectifs d'un tel programme répondent à la volonté de participer à l'élaboration des décisions concernant la gestion des ressources et des flottilles, qu'elles soient prises au niveau régional, national ou européen (Plans d'Orientation Pluriannuels, contingentement des...
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00031/14230/11505.pdf

ROMELIGO. Amélioration des connaissances halieutiques du ROuget-barbet, du MErlan et du LIeu jaune du GOlfe de Gascogne
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie; Lissardy, Muriel; Bru, Noelle; Dutertre, Marie-adele; Saguet, Cassandre.
The stocks of whiting (Merlangius merlangus), pollack (Pollachius pollachius) and striped red mullet (Mullus surmuletus), are considered by ICES as Data Limited Stocks (DLS) for the Bay of Biscay areas, those bordering the Iberian Peninsula as well as the Celtic Sea for red mullet. In the case of insufficient data for an analytical assessment, ICES has recommended, for 2013 and 2014, to precautionarily reduce landings by 20 % compared to the period 2009-2011 for these 3 stocks. In order to improve knowledge to fill the gaps in the status of these stocks, and to extract them from the DLS category, the ROMELIGO project has: i) analyzed available data on both catches and professional fishing activity, Captures per Unit of Effort (CPUE) to identify reference...
Tipo: Text
Palavras-chave: Merlan; Lieu jaune; Rouget barbet de roche; Golfe de Gascogne; CPUE; Flottille de pêche; Paramètres biologiques; Whiting; Pollack; Striped red mullet; Bay of Biscay; CPUE; Fishing fleet; Biological parameters.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00440/55126/56584.pdf

L'état des communautés exploitées au large des côtes de France. Application d'indicateurs à l'évaluation de l'impact de la pêche. Bilan 2004 – Edition 2009
Provedor de dados: 5
Autores: Morin, Jocelyne; Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lobry, Jeremy; Mahe, Jean-claude; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Vaz, Sandrine; Verin, Yves.
Since about twenty years, Ifremer have carried out fishery surveys along the French coasts. A dynamic indicator-based approach to the assessment of multi-stock fisheries has been applied to these data series. Reference points for non-commercial populations and community indicators are seldom available, but reference directions are well established: it is known whether fishing will increase or decrease the indicator, hence the direction that should be avoided. A set of simple indicators of fishing impacts on fish populations and communities were estimated from time-series data provided by scientific surveys (population abundance and average length, community total biomass and number, average length and weight, and size spectrum). Trends in these indicators...
Tipo: Text
Palavras-chave: Communauté; Population; Indicateurs; Campagnes scientifiques; Pêcheries multi spécifiques; Approche écosystémique pour la gestion des pêches.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/rapport-7293.pdf

Liste des « poissons » capturés dans les Pertuis charentais de 2005 à 2012. Cartes de distribution annuelles pour 18 espèces
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Quero, Jean-claude.
From 2005 to 2012, during the 8 annual summer beam trawl fishing surveys in the Pertuis charentais to assess the abundance of young soles, 59 species of fish were caught : 2 Elasmobranchii and 57 Actinopterygii. The list of these and the annual distribution maps of the more or less 18 plentiful species are given.
Tipo: Text
Palavras-chave: Poisson; Cartes de repartition; Pertuis charentais; Fish; Distribution maps; Pertuis charentais.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00240/35119/36067.pdf

Prey selection by the common dolphin: Fulfilling high energy requirements with high quality food
Provedor de dados: 5
Autores: Spitz, Jerome; Mourocq, Emeline; Leaute, Jean-pierre; Quero, Jean-claude; Ridoux, Vincent.
Which characteristics define the prey species constituting the diet of a given predator? Answering this question would help predict a predator's diet and improve our understanding of how an ecosystem functions. The aim of this study was to test if the diet of common dolphins, Delphinus delphis, in the oceanic Bay of Biscay reflected prey availability or a selection shaped by prey energy densities (ED). To do this, the community of potential prey species, described both in terms of relative abundance and energy densities, was compared to the common dolphin diet in this area. This analysis of a predator's diet and its prey field revealed that the common dolphin selected its diet on the basis of prey energy densities (significant values of Chesson's index for...
Tipo: Text
Palavras-chave: Active prey selection; Common dolphin; Prey quality; Energy density; Field of prey; Trophic cul-de-sac.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12221/9086.pdf

Faune française de l’Atlantique. Requins .2. Carcharhiniformes (Craniata : Elasmobranchii)
Provedor de dados: 5
Autores: Quero, Jean-claude; Spitz, Jerome; Leaute, Jean-pierre.
The fauna of ground sharks (15 species) from the French Atlantic fauna is given. Galeorhinus galeus which in the past was common in the Bay of Biscay is now endangered. The extension towards the North of the distribution area of Mustelus mustelus, the increase of the records of Sphyrna zygaena and the catches of 3 Carcharhinus and 1 Galeocerdo cuvier probably result from ocean warming.
Tipo: Text
Palavras-chave: Atlantique français; Requins; Carcharhiniformes; French Atlantic; Sharks; Carcharhiniformes.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00250/36083/34634.pdf

Poissons et invertébrés au large des côtes de France. Indicateurs issus des pêches scientifiques. Bilan 2004
Provedor de dados: 5
Autores: Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lobry, Jeremy; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Verin, Yves; SIH-C.
The integration of fishing management into the ecosystemic approach has been recommended for many years by international consultative bodies; it is also written into international conventions and agreements. The implementation of the ecosystemic approach involves the development of programmes for monitoring exploited ecosystems in order to measure the effects of management steps. Plotting the results of these observations for operational reasons requires formalizing summary performance indicators.  IFREMER has carried out halieutic observation campaigns for some twenty years along the coasts of France from oceanographic ships and chartered ships. The objective of these campaigns is to produce abundance indices of species that are of halieutic interest....
Tipo: Text
Palavras-chave: Ecosystem; Indicating; Scientific survey; Scientific research; Fishing; English Channel; Bay of Biscay; France; Shellfish; Fish; Invertébrés; Poissons; Ecosystème; Indicateur; Campagne océanographique; Recherche scientifique; Pêche halieutique; Pêche; Mer du nord; Golfe de gascogne; Manche; France.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/rapport-2327.pdf

Les flottilles de pêche dans la mer territoriale du golfe de Gascogne
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
The regular aerial survey over the Bay of Biscay (France) by the French Custom Air Service enabled us to record precisely in 2001 the geographical positions of French fishing vessels inside the 12 nautical miles of the French Bay of Biscay (from Bay of Audierne to Spanish border). Among the 2396 ships counted in this area, 1810 were identified, corresponding actually to 900 boats since most of them (52 %) were seen several times. These 900 boats referred to 4 different "métiers", i.e. type of fishing activity: most of them (59 %) were bottom trawlers, 28 % gillnetters, 5 % potters and 5 % longliners; those which used another gear were less than 4 %. General characteristics of the 900 ships were identified: tonnage and power were respectively 25 TJB and 185...
Tipo: Text
Palavras-chave: French EEZ; "métiers"; Aerial census; Fishing fleet; Bay of Biscay; ZEE française; Métiers; Survols aériens; Flottilles de pêche; Golfe de Gascogne.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-6521.pdf

Étude de surveillance écologique des ressources halieutiques FLAMANVILLE (Manche) - ZOOPLANCTONOLOGIE 10 mars - 25 octobre 1983
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Le Bec, Claude.
Le présent rapport fait état des résultats obtenus du 10 mars au 25 octobre 1983. Ces observations font suite à celles réalisées lors de l'étude de projet (d'avril 1977 à septembre 1979),et constituent la première année de Surveillance sur le site de Flamanville.
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/00045/15648/13051.pdf

Activité et production des navires français – Façade "Manche est" et Façade "Loire-Gironde"
Provedor de dados: 5
Autores: Delpech, Jean-paul; Mehault, Sonia; Rostiaux, Emilie; Leaute, Jean-pierre; Leblond, Emilie; Demaneche, Sebastien; Coppin, Franck; Mahe, Kelig; Vaz, Sandrine.
This report is a result of a contract between Ifremer and the French Ministry of Industry. The aim was to provide map the fisheries activity and landings for french fishing vessels, located in the Eastern Channel and the Bay of Biscay during the year 2005. Two areas have been selected:  - the "Eastern Channel" area, including 7 administrative departments : Nord, Pas-de-Calais, Somme, Seine-Maritime, Eure, Calvados and Manche. - the "Loire-Gironde" area, including 4 administrative departments : Loire-Atlantique, Vendée, Charente-Maritime and Gironde.
Tipo: Text
Palavras-chave: Fishing fleets; Fishing gears; Bay of Biscay; Eastern Channel; Mapping; Landings; Fisheries activity; Flottilles; Pêche; Engins; Golfe de Gascogne; Manche est; Cartographie; Production; Activité halieutique.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/rapport-6645.pdf

Approche du regime alimentaire des juveniles de bars et de limandes en baie de Somme.
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
Stomach contents of juveniles of sea bass (Dicentrarchus labrax ) and common dab (Limanda limanda ) collected during September 1982 from Bay of Somme and the neighbor coast to Penly, were examined. The most part of the diet of young sea bass are the crustaceans, Sedentary polychaetes appear to be the major food item for common dab. For these two young predator species, food preferences tend to change early: cumaceans, then common edible shrimp, for sea bass, Tube worm tentacles, then part of whole individuals are preferred by common dab.
Tipo: Text
Palavras-chave: Dicentrarchus labrax; Prey selection; Food preferences; Stomach content; Diets.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-1789.pdf

Observations ichtyologiques effectuées en 2004
Provedor de dados: 5
Autores: Quero, Jean-claude; Bellail, Robert; De Casamajor, Marie-noelle; Leaute, Jean-pierre; Morandeau, Gilles; Moriniere, P; Spitz, J; Vayne, Jean-jacques.
During 2004, Caranx crysos and Echeneis naucrates are caught in the Bay of Biscay, at north of their known repartition. The capture in our waters of two specimens of Cyttopsis rosea, the eighth specimen of Trachinotus ovatus and six Lagocephalus lagocephalus are mentioned. NOT CONTROLLED OCR
Tipo: Text
Palavras-chave: Bay of Biscay; Northern record; Lagocephalus lagocephalus; Trachinotus ovatus; Cyttopsis rosea; Echeneis naucrates; Caranx Crysos; Golfe de Gascogne; Lagocephalus lagocephalus; Trachinotus ovatus; Cyttopsis rosea; Echeneis naucrates; Caranx Crysos.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-3658.pdf

Analyse des flottilles du sud du golfe de Gascogne, de 1986 à 2002 – De Noirmoutier à Bayonne. Description et évolution des composantes de pêche
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
This document presents a comparative assessment of six triennal analysis carried out between 1986 and 2002, on 1300 boats, on average, from the 35 ports of Southern Bay of Biscay fishing fleets (from Loire river to Spanish border). Fisheries statistics allow the identification of different fishing practices and fishing boats associated with them within the fleets. In order to allow comparison and analysis of the evolution that has taken place during the study period, the same variables (gears used, landed species) and multivariate analysis procedures have been used to produce groupings of vessels.   Over the period, 11 components, on average, have been identified, grouped in two entities, mobile and fixed gears. If the discriminative characteristics...
Tipo: Text
Palavras-chave: Typologie; Flottilles de pêche; Composantes; Golfe de Gascogne; Analyse multivariée; Typology; Fishing fleet; Components; Bay of Biscay; Multivariate analysis.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00001/11234/7756.pdf

La petite pêche en Aquitaine - le bassin d'Arcachon - Halieutique, socio-économie, usages et réglementations. 1999-2000
Provedor de dados: 5
Autores: Caill-milly, Nathalie; Leaute, Jean-pierre; Trouillet, Brice; Laborde, Jean-louis; Goumy, Cécilia; Prouzet, Patrick; Grandpierre, Alde; Lissardy, Muriel; Corlay, Jean-pierre.
Introduction : Intra-basin fishing is not grasped as well, partly because of a lack of distinction between pure professional fishing units and conchological units and on the other hand because of the large amount of ships. Poorly adapted codification of the equipment found in the basin is also contributing to this lack of information. Studies on the subject do exist, but the elements necessary to publish notices are not always gathered, this is leading to the proposal of a geographical systemic analysis on the basin. The steps that are being taken are complementing the development of the Geographical Information System already in place in the basin since 1993 through DEL at the Arcachon Ifremer as well as the PECOSUDE European study ¿ caractéristiques des...
Tipo: Text
Palavras-chave: Uses; Regulation; Economy; Halieutics; Basin of Arcachon; Fishing; Usages; Réglementation; Economie; Halieutique; Bassin d'Arcachon; Pêche.
Ano: 2001
URL: https://archimer.ifremer.fr/doc/2001/rapport-1660.pdf

Les petites pêches côtières et estuariennes Françaises du sud du golfe de Gascogne. Typologie des flottilles et approche socio-économique et commerciale
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie.
The European contract PECOSUDE (Small inshore fisheries of the south of Europe) accepted in 2000 for 2 years concerns French, Spanish and Portuguese partners. The aim is to assess the inshore and estuarine fisheries from Loire estuary to Portugal. Three levels of study are considered : fisheries (data 1999), socioeconomy and marketing (data 1999 or 2000). Exploitation in the 12 miles area for France and on continental shelf for northern Spain and Portugal (within 1000 m depth), as well as the fishing period lower than 96 hours was determined as the definition of this fishery for the study. Socioeconomic analyses are made only on boats smaller than 15 m. The fisheries part analyses the activity of the fishing vessels taking into account gears used, landed...
Tipo: Text
Palavras-chave: Commercialisation; Indicateur économique; Pêcherie; Flottille de pêche côtière et estuarienne; Enquête socio économique; Typologie; Golfe de Gascogne; Marketing; Economic indicator; Fishery; Coastal and estuarine fishing fleet; Socioeconomic inquirie; Typology; Bay of Biscay.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/rapport-1572.pdf

Interaction between marine populations and fishing activities: temporal patterns of landings of La Rochelle trawlers in the Bay of Biscay
Provedor de dados: 5
Autores: Poulard, Jean-charles; Leaute, Jean-pierre.
Marine populations are distributed heterogeneously in space and time because of the diversity of habitats and the requirements of species life cycles. Human exploitation of these resources also varies as a function of space, time and the type of fishing activities performed. These three factors determine fishing strategy at different levels of integration. The purpose of this study was to describe and analyse, with respect to different time scales, the relations between the modalities of resource exploitation and the biological or demographic characteristics of the species involved. These investigations relate to the more general task of acquiring the basic knowledge needed for spatialised management of fishing effort. A fleet of trawlers from La Rochelle,...
Tipo: Text
Palavras-chave: Atlantic ocean; Bay of Biscay; Seasonal variability; Multiple factor analysis; Bottom trawlers; Landings.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-1397.pdf

Les flottilles de pêche de l'Union Européenne dans le golfe de Gascogne vues du ciel
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
Regular flights over the Bay of Biscay by the French Customs Air Service, have enabled us to record more precisely, from 1989 to 1995, the geographical locations of French and other European Community (EU) fishing boats. Data showed three main 'metiers' within the Bay of Biscay fishing fleet: French and Spanish bottom trawlers (61 %), French gill-netters and Spanish longliners: More than 80 % of gill-netters worked inside the territorial sea (12 nautical miles) and 60 % of them worked south of Noirmoutier (47 degrees N). Longliners moved according to the seasons, from the edge of the continental shelf to the 50-100 m sounding lines. Since they work at night, only few pelagic trawlers have been recorded (records being made in daylight). The potters, liners...
Tipo: Text
Palavras-chave: Bay of Biscay; Fishing fleet; Aerial census; Metier; French EEZ.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/publication-855.pdf

Improvement of the fishery knowledge of striped red mullet of the Bay of Biscay
Provedor de dados: 5
Autores: Caill-milly, Nathalie; Lissardy, Muriel; Leaute, Jean-pierre.
Striped red mullet (Mullus surmuletus) belongs to the species for which individualization of stocks is advanced by ICES in western Europe for areas including the Bay of Biscay and the areas bordering the Iberian peninsula. Since 2012, ICES has provided recommendations with regards to this stock. These recommendations are given for two years and are based on an approach adopted by ICES in 2012 in the case of insufficient data for an analytical evaluation (Data Limited Stocks, DLS). For 2013 and 2014, ICES advice consisted in a 20% reduction in catches (average of the last 3 years:- 2009-2011) as a precautionary measure. Since that, no new advice has been formulated, the advice remains the same. Considering the impacts of such measurements on the French...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00399/51057/52225.pdf

L’alimentation des juvéniles de sole commune (Solea solea) dans les Pertuis charentais.
Provedor de dados: 5
Autores: Lepareur, Fanny; Leaute, Jean-pierre.
Dans le cadre de l’Observatoire de Recherche sur les pertuis Charentais (ORE REPER), une problématique a été posée sur les conséquences des modifications de la qualité de l’environnement sur le fonctionnement de la nourricerie de la sole commune (Solea solea, L.). Pour répondre à cette problématique, les secteurs préférentiels des juvéniles de la sole dans les Pertuis ont été déterminés à l’aide des données récoltées lors de la campagne SOLPER 2006 (Léauté, 2007) qui suit l’évolution de l’abondance des juvéniles. Ensuite, leur alimentation dans ces zones a été décrite par l’analyse de leurs contenus stomacaux afin de comprendre les relations qui existent entre les juvéniles de la sole et leur environnement. Lors de la campagne SOLPER 2006 qui s’est...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00260/37155/35685.pdf

Demande d'avis sur le classement administratif du gisement naturel de Tellines de "Sud Pont d'Yeu"
Provedor de dados: 5
Autores: Treguier, Cathy; Veron, Gerard; Leaute, Jean-pierre; Cochennec-laureau, Nathalie.
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00405/51642/79467.pdf

Analyse des campagnes SOLPER - 2005 à 2012
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Aubert, Fabien; Lepareur, Fanny; Coupeau, Yann; Boiron-leroy, Anne.
A large number of studies on common sole have already been done for years by many research laboratories. This study sought to make a focus on a major nursery on the Atlantic coast, the Pertuis charentais, through the results of eight annual surveys (2005-2012) in late summer (SOLe PERtuis) targeting sole juveniles with a small beam trawl until subtidal zone (&lt;1.50 m). Some of the results obtained in this report confirm previous studies, such as, among others, that more than 80% YOY (G0) occupy muddy or sandy mud bottom at a depth less than 5 m, or that there is a relative correlation between large rainfall in the spring, river flows and abundance of G0 in nursery.   However in the Pertuis Breton this correlation is little expressed by an extension of...
Tipo: Text
Palavras-chave: Sole commune; Solea solea; Chalut à perche; Abondance; Pertuis charentais; Common sole; Solea solea; Beam trawl; Abundance; Pertuis charentais.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00422/53357/54196.pdf

Fiche d'évaluation de fin de campagne : EVHOE 2012
Provedor de dados: 5
Autores: Pawlowski, Lionel; Salaun, Michele; Leaute, Jean-pierre.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00127/23847/21774.pdf

Evolution des débarquements mensuels des chalutiers artisans de La Rochelle, dans le golfe de Gascogne, entre 1979 et 1993
Provedor de dados: 5
Autores: Poulard, Jean-charles; Leaute, Jean-pierre.
L'évolution de la composition spécifique des débarquements mensuels par unité d'effort des chalutiers artisans rochelais opérant dans le golfe de Gascogne est analysée sur la période 1979 - 1993. La flottille se caractérise par une certaine stabilité dans le temps, en termes de métier pratiqué, de lieux de pêche fréquentés et d'espèces recherchées. Les navires ont des caractéristiques très voisines et utilisent un engin de pêche ayant peu évolué. Dix huit espèces, représentant en moyenne 94% des apports annuels, ont été retenues pour décrire l'activité des navires qui s'exerce pour l'essentiel entre l'île d'Oléron et Arcachon, depuis la côte jusqu'à l'isobathe de 100 m. L'analyse factorielle multiple (AFM) met en évidence une forte organisation saisonnière...
Tipo: Text
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00260/37150/35680.pdf

Poissons du Golfe de Gascogne. Courbes de croissance en longueur totale et poids entier. Age de maturité sexuelle.
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Mahe, Kelig; Le Roy, Emilie.
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00506/61798/65802.pdf

Estimation des stocks de palourdes Ruditapes decussatus, Ruditapes philippinarum sur l'estran oléronais du bassin de Marennes-Oléron. Juin 2009
Provedor de dados: 5
Autores: Bordeyne, François; Robert, Stephane; Le Moine, Olivier; Leaute, Jean-pierre.
On French coast, Manila clam is a bivalve subject of a large activity recreational and professional hand harvest. Two species are represented in France, European Manila clam Ruditapes decussatus (native) and Japanese Manila clam Ruditapes philippinarum (introduced). Predominance of this last species (more than 90 % of number and biomass), earn them the status of invasive species. Contrary to Arcachon bay, Pont l’Abbé River or Morbihan bay, an estimation campaign of Manila clams stock on Marennes-Oléron bay had never been carried out. The objective of this study: estimate, in number and biomass, the Manila clams stock of two areas. The first affect recreational hand harvest, on Saint-Trojan shore (0.8 km²) whereas the second scopes professional hand...
Tipo: Text
Palavras-chave: Palourde; Ruditapes philippinarum; Ruditapes decussatus; Estimation; Stock; Marennes–Oléron.; Manilla clam; Ruditapes philippinarum; Ruditapes decussatus; Estimation; Stock; Marennes–Oleron.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00415/52621/53459.pdf

ROMELIGO : Improvement of the fishery knowledge of striped red mullet, whiting and pollack of the Bay of Biscay. The pollack part
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie; Lissardy, Muriel.
This document present the pollack part of the study Striped red mullet (Mullus surmuletus), whiting (Merlangius merlangus) and pollack (Pollachius pollachius) are three species for which individualization of stocks is advanced by ICES in western Europe for areas including the Bay of Biscay and the areas bordering the Iberian peninsula. Since 2012, ICES has provided recommendations with regards to these stocks. These recommendations are given for two‐year periods and are based on an approach adopted by ICES in 2012 in the case of insufficient data for an analytical evaluation (Data Limited Stocks, DLS). For 2013 and 2014, ICES recommended reducing catches by 20% as a precautionary measure compared to 2009‐2011 for the three stocks. Considering that TACs are...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00413/52453/53234.pdf

Caractéristiques des petites pêches côtières et estuariennes françaises du sud du golfe de Gascogne.
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie; Leblond, Emilie.
A travers le projet européen PECOSUDE (n° 99/024) signé en 2000 pour 2 ans, les trois pays participants, la France, l’Espagne et le Portugal ont eu pour objectif de décrire les caractéristiques des petites pêches côtières et estuariennes de la côte atlantique du Sud de l’Europe (de la Loire au Portugal). Ce travail s’est basé sur un bilan des flottilles côtières, du point de vue des typologies, de l’aspect économique et social de l’activité et de la commercialisation des produits issus de cette pêche. La compréhension des systèmes d’exploitation impose l’utilisation conjointe des connaissances de l’halieutique (données 1999), de l’environnement, de l’économie et du social (données 2000). La fréquentation de la zone des 12 milles pour la France et du...
Tipo: Text
Ano: 2005
URL: http://archimer.ifremer.fr/doc/00260/37154/35684.pdf

Les flottilles de pêche des pertuis charentais vues du ciel - campagne 2004
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
To identify fishing areas operated by professionals fishing vessels in Pertuis charentais, a survey of 17 weekly aerial census was carried out from May to October 2004. The connection with the species landed by these vessels, and the link with bottom of the sea operated by them was studied.
Tipo: Text
Palavras-chave: Flottille de pêche; Pertuis charentais; Survol aérien; Débarquements; Saisons de pêche; Indice de sélection; Fishing fleet; Pertuis charentais; Aerial census; Landings; Fishing periods; Bottom selection index.
Ano: 2005

Faune francaise de l’Atlantique. Batoïdes : Torpediniformes, Rajiformes &amp; Myliobatiformes (Craniata : Elasmobranchii)
Provedor de dados: 5
Autores: Quero, Jean-claude; Leaute, Jean-pierre; Spitz, Jérôme.
A state of the French Atlantic marine fauna of the Torpediniformes or electric ray (1 family : 3 species), of the Rajiformes or ray and skate (1 family : 18(19) species) and of the Myliobatiformes or syingray, butterfly ray, eagle ray…(3 families : 6 species) is given. In the Bay of Biscay, the large skates which were common in the past, are almost extinct nowadays. The rays living exclusively on the continental shelf area, the most frequented by fishermen, are now endangered.
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00379/48993/49667.pdf

Les flottilles de pêche des pertuis charentais vues du ciel - campagne 2006
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
To identify fishing areas operated by professionals fishing vessels in Pertuis charentais, a survey of 11 bimonthly aerial census was conducted from May to October 2006. The connection with the species landed by these vessels, and the link with bottom of the sea operated by them was studied.
Tipo: Text
Palavras-chave: Flottille de pêche; Pertuis charentais; Survol aérien; Débarquements; Saisons de pêche; Indice de sélection; Fishing fleet; Pertuis charentais; Aerial census; Landings; Fishing periods; Bottom selection index.
Ano: 2007

Typologies des flottilles du sud du golfe de gascogne, en 1986, 1989, 1992 et 1995. De Noirmoutier à Bayonne. Description et evolution des composantes de peche
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
This document presents a comparative assessment of four triannual analyses carried out between 1986 and 1995, on 1300 boats, on average, from the 35 ports of Southern Bay of Biscay fishing fleets (from Loire river to Spanish border). Fisheries statistics allow the identification of different fishing practices and fishing boats associated with them within the fleets. In order to allow comparison and analysis of the evolution that has taken place during the study period, the same variables (gear used, landed species) and multivariate analysis procedures have been used to produce groupings of vessels Over the period, an average of 11 components have been identified, grouped in two entities, mobile and fixed gears. If the discriminative characteristics (gears,...
Tipo: Text
Palavras-chave: Caseyeur; Palangrier; Fileyeur; Chalutier; Arts dormants; Arts traînants; Golfe de Gascogne; Flottille; Composante; Segmentation; Typologie; Potter; Longliner; Gillnetter; Trawler; Fixed gear; Mobile gear; Bay of Biscay; Fleet; Component; Grouping; Typologie.
Ano: 2000
URL: https://archimer.ifremer.fr/doc/2000/rapport-1582.pdf

Rapport de la campagne SOLPER 2 (28 août – 2 septembre 2006)
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
To estimate the size, age and abundance distribution of juvenile sole (Solea solea) of nurseries in the Pertuis charentais (France) in 2006, a small beam trawl of 2 m wide and 8 mm stretched mesh was used over a hundred sampling points. The other fish catches have also been recorded and water temperatures measured.
Tipo: Text
Palavras-chave: Pertuis charentais; Chalut à perche; Nourricerie; Sole commune; Solea solea; Juvéniles; Taille; Abondance; Âge; Pertuis charentais (France); Beam trawl; Nursery; Juvenile sole; Solea solea; Length; Abundance; Âge.
Ano: 2007

Do changes in environmental and fishing pressures impact marine communities? An empirical assessment
Provedor de dados: 5
Autores: Rochet, Marie-joelle; Trenkel, Verena; Carpentier, Andre; Coppin, Franck; Gil De Sola, Luis; Leaute, Jean-pierre; Mahe, Jean-claude; Maiorano, Porzia; Mannini, Alessandro; Murenu, Matteo; Piet, Gerjan; Politou, Chrissi-yianna; Reale, Bruno; Spedicato, Maria-teresa; Tserpes, George; Bertrand, Jacques.
P&gt;1. The development of ecosystem approaches to environmental management implies the need to account for multiple pressures on ecosystems. Trends in multiple metrics that respond differently to changes in major environmental pressures need to be combined to evaluate the impacts of fishing and environmental changes on fish communities. 2. An exploited fish community is viewed as a three-level food chain in which the two upper levels, or functional groups, are targeted by fishing fleets, while the lowest level is subject to environmental variation. Qualitative modelling is used to predict changes at the two upper levels, that is, top-down vs. bottom-up perturbations. Abundance and length metrics are calculated from survey data for 14 Mediterranean and...
Tipo: Text
Palavras-chave: Bottom-up control; Community metrics; Compensation; Ecosystem approach to fisheries; Ecosystem assessment; Functional groups; Groundfish community; Mediterranean; North Atlantic; Top-down control.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00008/11925/8637.pdf

Les flottilles de pêche, dans les 12 milles du golfe de Gascogne, vues du ciel.
Provedor de dados: 5
Autores: Leaute, Jean-pierre.
En 2001, en collaboration avec les services des Douanes aériennes nous avons pu, chaque mois, localiser précisément les navires de pêche actifs dans la mer territoriale du golfe de Gascogne. Sur les 2396 navires observés, 1810 ont été identifiés, ce qui correspond à 900 navires car 52 % ont été vus plusieurs fois. La majorité (59 %) sont des chalutiers de fond, 28 % des fileyeurs, 5 % des caseyeurs et 5 % des palangriers ; les autres métiers sont moins de 4 %. Du nord au sud de la zone, les chalutiers présentent un gradient de présence décroissant et les fileyeurs un gradient croissant, les caseyeurs sont localisés principalement en sud Bretagne (zones rocheuses) et les palangriers au sud de la Loire. La majorité des flottilles travaille à proximité de...
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00260/37153/35683.pdf