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Registros recuperados: 18
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Analyse des campagnes SOLPER - 2005 à 2012 ArchiMer
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 (<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
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Analyse des pratiques technico-économiques et rationalités des pêcheurs de pertuis charentais ArchiMer
Tachoires, Stéphanie.
ln the Pertuis charentais shallow area, located between the mainland and the Ré and Oléron islands, marin space is in dispute between the severals stakeholders. The fishing in this area is permitted by a licencing policy and is strongly affected by the space competition. lts future is also uncertain because of the state of the fishing stocks, the new regulations which must be implemented. Given this context, this study aims to assess the evolution and adaptation abilities of the exploitation system in the Pertuis charentais facing the change of the socio-technic context. On board and at port, surveys were carried out. The fishing fleet is made up of old boats, but the fishing is attractive for the fishermen. The enterprise logic functioning as studied and...
Tipo: Text Palavras-chave: Petite pêche; Pertuis charentais; Système; Exploitation; Potentialité d'évolution.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/00448/55951/57430.pdf
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Cartographie synthétique et analyse des peuplements benthiques sur deux secteurs du littoral français "Manche-Est" et "Loire-Gironde" ArchiMer
Blanchard, Michel; Heim, Marie; Rozec, Xavier; Caisey, Xavier.
This document presents a synthetic study of benthos in two large areas of the French coast: East-Channel and the area between Loire and Gironde. This original synthesis stocktakes biotopes maps published for the vast majority in the 70’s. The report uses the previous descriptions and analysis done by the different authors, and translates them with present specific names or biotopes codes, as proposed in the European EUNIS referring system. The presented maps are standardized and referred geographically with WGS84 to be collated together. For each biotope, specific richness and ecological richness are analysed, thanks to the information given by the various authors. Some informative cards of the main representative species are also presented in the...
Tipo: Text Palavras-chave: Benthos; Peuplement; Cartographie; Littoral français; Manche Est; Bretagne sud; Vendée; Pertuis charentais; Golfe de Gascogne; Benthos; Community; Cartography; French coast; East Channel; Southern Brittany; Vendée; Pertuis charentais; Bay of Biscay.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/00003/11434/7983.pdf
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Dynamique et réponse fonctionnelle des foraminifères et de la macrofaune benthiques en zone ostréicole dans les pertuis charentais ArchiMer
Bouchet, Vincent.
In oyster farming areas, organic matter fluxes toward sediment is increased. Pacific oysters (Crassostrea gigas) reject organic-rich faeces and pseudofaeces as a result of filtration process. Organic matter can be consumed by benthic fauna, but in excess it can entails the reduction of benthic faunal species richness, abundance and biomass. Organic matter degradation also induces hypoxic (or anoxic) conditions in the sediment, and production of ammonia and sulfides in toxic concentrations. The main objective of this study is to assess the effects of oyster farming on benthic intertidal ecosystems in the Pertuis Charentais. Benthic macrofauna, living (stained) foraminifera, and physicochemical characteristics of the water column and sediment were used as...
Tipo: Text Palavras-chave: CAT scan; Bioturbation; Macrofauna/foraminifera interaction; Sensible species; Tolerant species; Benthic foraminifera; Benthic macrofauna; Chlorophyl a; Organic matter; Intertidal areas; Pertuis charentais; Oyster farming; CAT scan; Bioturbation; Interaction macrofaune/foraminifères; Espèces sensibles; Espèces tolérantes; Foraminifères benthiques; Macrofaune benthique; Chlorophylle a; Matière organique; Zone intertidale; Pertuis charentais; Ostréiculture.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-2582.pdf
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Gestion des écosystèmes conchylicoles : le cas des pertuis charentais ArchiMer
Goulletquer, Philippe; Heral, Maurice.
The nutritional capacity of an oyster culture basin relies on the nutrient input, as well as the hydrodynamic which conditions the time of residence of the masses of water enabling the development of the phytoplankton. This limited amount of food has to be shared between the different natural populations and the cultivated ones (oysters or mussels). The total amount of these biomasses has to be controlled so as not to exceed the capacity limit.
Tipo: Text Palavras-chave: Biomasse; Capacité nutritionnelle; Conchyliculture; Charente Martime; Pertuis charentais; Ecosystème.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/acte-3515.pdf
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Le partage de l'eau entre les différents utilisateurs : l'exemple des Pertuis Charentais ArchiMer
Prou, Jean.
Managing the water resource finds a special dimension on the coastal strip. This resource is not shared between the different users according to the classical schemes of catchment areas, linking quality and quantity. The measure of a river water flow turns into currents in the marine field and the freshwater volumes turn into salinity units illustrating the fresh water / salt water mix. As a consequence, in a participative management approach as recommended by the GIZC (Integrated Management of the Coastal Zone) procedures, it seems fundamental that the actors from the terrestrial and marine worlds and their interfaces share their perceptions in order to improve the quality of the management scenarios. This shared perception of the catchment area and...
Tipo: Text Palavras-chave: Charente Maritime; Pertuis charentais; Gestion eau; Conchyliculture.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/acte-3516.pdf
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Les flottilles de pêche des pertuis charentais vues du ciel - campagne 2004 ArchiMer
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
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Les flottilles de pêche des pertuis charentais vues du ciel – campagne 2005 ArchiMer
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
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Les flottilles de pêche des pertuis charentais vues du ciel - campagne 2006 ArchiMer
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
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Les flottilles de pêche des pertuis charentais vues du ciel – Synthèse des campagnes 2004-2005-2006 ArchiMer
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
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Liste des « poissons » capturés dans les Pertuis charentais de 2005 à 2012. Cartes de distribution annuelles pour 18 espèces ArchiMer
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
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Mortalités massives de l’Huître creuse. Synthèse - Rapport final des études menées sur les mortalités de naissains d’huîtres creuses C. gigas sur le littoral charentais pour la période de 2007 à 2012 ArchiMer
Pepin, Jean-francois; Soletchnik, Patrick; Robert, Stéphane.
Since 2008, the French oyster-farming sector has been confronted with exceptionally high rates of mortality affecting spats (less than one year old) of the Pacific oyster, C. gigas, of between 60 and 90% at all rearing sites and in Pertuis Charentais sea. The objective of this document is to provide an overview of the research and studies carried out by Ifremer in Poitou-Charentes since the emergence of this phenomenon. The actions presented were funded by IFREMER, and CPER Poitou-Charentes 2007-2013.
Tipo: Text Palavras-chave: Huître creuse; Naissain; Surmortalité; Virus herpès; Vibrions; Environnement; Pertuis charentais; Pacific oyster; Spat; Mortality; Herpes virus; Vibrios; Environment; Pertuis charentais..
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00217/32856/31335.pdf
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Rapport de la campagne SOLPER 1 (26 août – 2 septembre 2005) ArchiMer
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
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Rapport de la campagne SOLPER 2 (28 août – 2 septembre 2006) ArchiMer
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
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REMOULA 2002 - Réseau de Croissance Moule des Pertuis Charentais - Mars 2002 - Mars 2003 ArchiMer
Robert, Stephane; Guilpain, Patrice; Grizon, James; Geairon, Philippe; Razet, Daniel; Garen, Pierre; Faury, Nicole; Seugnet, Jean-luc; Soletchnik, Patrick; Le Moine, Olivier; Goulletquer, Philippe; Taillade, Sylvie.
Le réseau de suivi de croissance des moules dans les Pertuis Charentais a 3 ans d 'existence. L'année 2002 n'est pas une bonne année de croissance. Les mesures de gain de poids moyen journalier saisonnier soulignent un fort retard de croissance pour la période printanière (0,35 en 2002 contre 0,38 en 2001 et 0,69 en 2000). Ce manque de croissance n' est pas récupéré en été et reste équivalent à celui de 2001 (0,30). L'automne montre des résultats très variables, à l'avantage de l'élevage sur filières. La mortalité moyenne (20%) enregistrée en décembre 2002, atteint le même niveau qu 'en 2001, nettement supérieur à celui enregistré à la même date en 2000 ( 14%). Deux indices qualités sont proposés comme référence au remplissage du produit destiné à la vente...
Tipo: Text Palavras-chave: REMOULA; Réseau; Mytilus edulis; Croissance; Mortalité; Production; Qualité; France; Pertuis charentais.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00072/18365/15937.pdf
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Suivi de quelques facteurs environnementaux dans les pertuis Charentais : de 1992 à 1994 ArchiMer
Arnaud, Christophe.
A study of the environmental factors in the "pertuis charentais" (charentais straits) has been carried out from 1993 tc 1994. The evolution of water temperature and salinity, as weil as the turbidity, are studied. ln the middle of Breton Strait, near to the long lines, the stratification has not been observed, and the salinity variations are much less sharp than in the stations which are located nearer the coast. The photosynthetic pigments concentrations can be very different in the same time at two close stations; in the Antioch Strait and at the long lines, the values of chlorophyll "a" are comparable; they are much higher in the Breton Strait. At the same time, a study has been made on the physical factors, the photosynthetic pigments concentrations,...
Tipo: Text Palavras-chave: Pertuis charentais; Facteurs physico-chimiques; Turbidité; Pigments chlorophylliens; Seston; "pertuis charentais"; Physical factors; Turbidity; Photosynthetic pigments; Seston..
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00082/19282/16877.pdf
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Suivi des efflorescences phytoplanctoniques en Charente-Maritime en 1988 ArchiMer
Burgeot, Thierry; Fillon, Alain; Ratiskol, Gilles; Vayne, Jean-jacques.
La synthèse des informations collectées en 1988 en Charente Maritime, en matière de développement microalgaux a pour but de mettre en évidence, à partir des données recueillies au cours d'une année, des tendances et niveaux de contaminations phytoplanctoniques, ainsi qu'une certaine identité du secteur surveillé. L'année 1988 est marquée par une efflorescence monospécifique de Gymnodinium sp. en période estivale et par l'apparition du Dinophysis à des concentrations supérieures au seuil toxique sans qu'aucne toxicité ne soit décelée. Le réseau de suivi confirme, à travers la bonne représentativité des stations de prélèvement, la spécificité des pertuis charentais
Tipo: Text Palavras-chave: Microalgues; Pertuis charentais; Efflorescences monospécifiques.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00443/55496/57039.pdf
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Systèmes d'exploitation en pêche côtière ; méthode d'étude et application au cas des Pertuis ArchiMer
Moussard, F.
This report presents a functional typology of the exploitation systems of fisheries in the Charentais sounds. It describes the nature of such a typology as well as the method developed in relation to the topic of the study. The determination and formalization accepted to characterise the exploitation systems are outlined. Also presented is the evaluation of the value of the vessels of the sounds fleet. Types are identified based on two main explanatory variables: capital and work. They enable us to set the internal dynamics of the production system straight.
Tipo: Text Palavras-chave: SEM; Valeur des bateaux; Pertuis charentais; Pêche côtière; Typologie; Approche système.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/1998/these-3932.pdf
Registros recuperados: 18
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