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Registros recuperados: 88
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Abondance et composition du phytoplancton sur les lagunes méditerranéennes oligo et mésohalines ArchiMer
Derolez, Valerie; Bec, Béatrice; Grillas, Patrice; Sanchez, Ana Elena; Raimbault, Patrick.
In the context of WFD implementation on Mediterranean lagoons, work has been carried out since 2010 by Ifremer, Tour du Valat and IRSTEA (Onema and AERM & C fundings), to assess the relevance of macrophytes and macrofauna indicators for oligohaline and mesohaline lagoons (mean salinity <18 PSU). The question of the relevance of indicator metrics and thresholds for the "phytoplankton" biological quality element also arises, especially due to the confined nature of olgo-mesohaline lagoons. The objective of this study is to characterize the abundance and composition of phytoplankton on 5 oligo and mesohaline lagoons of the French Mediterranean coast (Scamandre, Crey, Charnier, Bolmon and Grand Palun). Analyses of accessory pigments (chlorophyll and...
Tipo: Text Palavras-chave: Lagunes; Méditerranée; Oligohalin; Mésohalin; Phytoplancton; Cytométrie; Pigments chlorophylliens; Lagoons; Mediterranean Sea; Oligohaline; Mesohaline; Phytoplankton; Cytometry; Chlorophyll pigments..
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00357/46816/46682.pdf
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ACTION RECOPLA - Inventaire et bancarisation des données de Géosciences Marines pour les façades Atlantique, Manche et Méditerranée ArchiMer
Gautier, Emeric; Kerjean, Mathieu; Satra Le Bris, Catherine; Bourillet, Jean-francois.
This report presents the inventory work realized for all the Marine Geoscience dept data acquired on the French continental shelf. It lists the bathymetric, seismic and backscattering data acquired, processed and interpreted in English Channel, Atlantic and Mediterranean. All the maps used for this inventory are available within the GIS "Manche Atlantique" and "Golfe du Lion".
Tipo: Text Palavras-chave: Inventaire; SIG; Manche; Atlantique; Méditerranée; Bathymétrie; Imagerie acoustique; Sismique; Données brutes; Traitées; Interprétées; GeoBIS; Inventory; GIS; Englsih Channel; Atlantic; Mediterranean Sea; Backscatter; Seismic; Raw; Processed; Interpreted data; GeoBIS.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00014/12558/9426.pdf
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Active faulting and deep crustal structure of the Eastern Sicily Margin ArchiMer
Dellong, David.
In the Ionian Sea (central Mediterranean) the slow convergence between Africa and Eurasia results in the formation of a narrow subduction zone. The nature of the crust of the subducting plate remains debated and could represent the last remnants of the Neo-Tethys ocean. The origin of the Ionian basin is also under discussion, especially concerning the rifting mechanisms as the Malta Escarpment could represent a remnant of this opening. This subduction retreats toward the south-east (motion occurring since the last 35 Ma) but is confined to the narrow Ionian basin. A major lateral slab tear fault is required to accommodate the slab rollback.This fault is thought to propagate along the eastern Sicily margin but its precise location remains controversial.This...
Tipo: Text Palavras-chave: Méditerranée; Ionien; Calabre; Géodynamique; Marge; Faille de déchirure lithosphérique; Sismicité; Sismique; Grand-angle; Bathymétrie; Gravimétrie; Modélisation; Mediterranean; Ionian; Calabria; Geodynamic; Subduction; Margin; STEP fault; Wide-angle seismic; Seismicity; Bathymetry; Gravity; Modelling.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00499/61026/64430.pdf
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Age et croissance de l'oursin Paracentrotus lividus Lamarck, 1816 (Echinodermata-Echinoidea) dans le golfe de Tunis (Méditerranée) ArchiMer
Sellem, Fériel; Langar, Habib; Pesando, Danielle.
The age of Paracentrotus lividus in the gulf of Tunis was evaluated by analysing the natural growth banding in the interambulacral plates from the oral part of the test. It appeared that growth rates increased in spring and summer, and decreased in autumn and winter. The maximum age and diameter were estimated to be 8 years and 53 mm respectively, Compared to populations of Paracentrotus lividus from NW Mediterranean and Atlantic, that of the gulf of Tunis presented a more rapid growth.
Tipo: Text Palavras-chave: Méditerranée; Oursin comestible; Âge et croissance; Mediterranean sea; Sea urchin; Age and growth.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00323/43384/42830.pdf
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An underwater tracking system for mapping marine communities: an application to Posidonia oceanica ArchiMer
Sgorbini, S; Peirano, A; Cocito, S; Morgigni, M.
The GPS intelligent buoy is a pot-table underwater tracking system consisting of four buoys and one pinger. The pinger was mounted on an underwater vehicle driven by a Scuba diver and used to map the limits of a Posidonia oceanica meadow. To test the accuracy of the method the system was tried out on different types of limits and on healthy and regressed part of the meadow from 2 to 25 m of depth. The time of track acquisition (1 point per second), the recording speed (1 km h(-1)) and the mapping scale (more than 1:500) indicated that the proposed method may be successfully integrated with conventional systems for mapping marine communities. (C) 2002 Ifremer/CNRS/IRD/Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Tipo: Text Palavras-chave: Cartographie; Phanérogames marines; Posidonia oceanica; Méditerranée; Mapping; Seagass; Posidonia oceanica; Mediterranean Sea.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43314/42940.pdf
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Analyse de l’activité de pêche aux filets maillants dérivants de moins de 2,5 km en Méditerranée et caractéristiques techniques des engins ArchiMer
Sacchi, Jacques; Lespagnol, Patrick.
Suite à l'interdiction communautaire d'utiliser des filets dérivants (définis selon le règlement CE N° 809/2007) pour la capture des espèces citées dans l'annexe VIII du règlement 1239/98 (modifiant le règlement 894/97) la pratique de cette technique se trouve actuellement limitée à un nombre réduit de métiers utilisés saisonnièrement par la flottille de petite pêche française de Méditerranée, des côtes du Roussillon à celles de Corse. Ces métiers ciblant principalement des sparidés, du bar et quelques petits pélagiques utilisent des filets maillants de surface ou de fond, soit calés au moyen de lignes de mouillage soit en dérive amarrés au navire. Une grande partie des informations sur l’activité de pêche en Méditerranée des filets maillants provient des...
Tipo: Text Palavras-chave: Filet maillant; Filet maillant dérivant; Engin de capture; Technique de pêche; Méditerranée; Enquête d'activité; Gillnet; Drifting gillnet; Fishing gear; Fishing technics; Mediterranean sea; Activity survey.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00001/11215/7784.pdf
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Application du modèle MARS-3D à la rade de Toulon. Comparaison à des données historiques ArchiMer
Tessier, Caroline.
Développé par le laboratoire DEL/AO à Brest et appliqué à la rade de Toulon, le modèle MARS-3D a été installé au laboratoire de Toulon. L'objectif est de mettre en route son application à Toulon et de contribuer à l'analyse en cours des résultats du modèle, en les· comparant aux mesures historiques. Dans ce rapport sont présentés les travaux faits pour réaliser ce double objectif: l'apprentissage du modèle dans sa conception et son utilisation, l'analyse des résultats et la comparaison avec des mesures ainsi qu'une simulation de traceurs. La comparaison du modèle avec les données a été réalisée sur la base des enregistrements faits en 1986-1987 en un point de mesure au centre de la grande rade. Or, l'emboîtement des modèles crée une contrainte sur le...
Tipo: Text Palavras-chave: Modèle; Tridimensionnel; Méditerranée; Hydrodynamique; Validation; Toulon.
Ano: 2001 URL: https://archimer.ifremer.fr/doc/00431/54248/59141.pdf
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Approche statistique des données MYTILOS - MYTIMED - MYTIAD - MYTIOR - MYTITURK. Contamination chimique en Méditerranée. Application du modèle de capteur "moule" ArchiMer
Sargian, Peggy; Laroche, Sophie; Bouchoucha, Marc; Andral, Bruno.
Sur la base de l'expérience acquise dans le cadre du programme Rinbio, développé en partenariat avec l'Agence de l'Eau Rhône Méditerranée Corse depuis 1996, sept campagnes ont été réalisées sur l'ensemble de la Méditerranée : Mytilos en 2004, 2005 et 2006, Mytimed en 2007, Mytiad en 2008, Mytior en 2009 et Mytiturk en 2011. La reproductibilité de la technique du caging de moules au cours de ces différentes campagnes permet de disposer d'une première cartographie de la contamination chimique à l'échelle de l'ensemble du littoral méditerranéen. Les caractéristiques du capteur représenté par les moules varient cependant en fonction du milieu et en particulier de ses capacités trophiques, des périodes de stabulation et des lots initiaux d'échantillons, ce qui...
Tipo: Text Palavras-chave: Rinbio; Méditerranée; Mytilos; Mytimed; Contaminant chimique; Modèle; Moules; Traitement statistique..
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00233/34387/32781.pdf
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Atlas des Diatomophycées des côtes françaises et des aires marines adjacentes ArchiMer
Paulmier, Gerard.
This Atlas puts the list of main diatoms from phytoplanktonic collects carried out in the French waters and bordering marine areas. A simple key of genera is set up and listed species are illustrated by photographies obtained with light microscope, and by drawings.
Tipo: Text Palavras-chave: Iconographie list; Mediterranean See; Channel; Atlantic; French coasts; Diatoms; Liste iconographique; Méditerranée; Manche; Atlantique; Côtes françaises; Diatomées; Diatomophycées.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/rapport-2452.pdf
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Bilan de l'état zoosanitaire des mollusques en Méditerranée française : 1988-2001 ArchiMer
Pichot, Yves.
The fact that molluscs from the Mediterranean have benefited from a privileged zoosanitary condition compared to those of the other French coasts has for a long time limited the control of farms and natural fields in this area. It is only in the early 70's, because of the pathological problems and risks observed in other areas that Mediterranean molluscs started to be stictly under zoosanitory control. This control was however limited until the early 90's. With the implementation of the European directives 91/67 and 95/70 for the protection of molluscs against diseases and their propagation, with the creation in 1992 of REPAMO- IFREMER (with a watch unit in the Mediterranean), the control of molluscs in the Mediterranean has considerably improved. Since...
Tipo: Text Palavras-chave: Méditerranée; Zoosanitaire; Mortalité; Huître plate; Ostrea edulis; Huître creuse; Crassostrea gigas; Moule; Mytilus galloprovincialis; Palourde; Tapes decussatus; Telline; Donas trunculus; Mediterranean; Zoosanitary; Mortality; Flat oyster; Ostrea edulis; Pacific cupped oyster; Crassostrea gigas; Mussel; Mytilus galloprovincialis; Clam; Tapes decussatus; Coquina clam; Donax trunculus.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00145/25579/23717.pdf
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Campagne DCE 2009 : Utilisation des échantillonneurs passifs (DGT, POCIS, SBSE) pour l'évaluation au titre de la DCE de l'état chimique des eaux côtières méditerranéennes ArchiMer
Gonzalez, Jean-louis; Munaron, Dominique; Andral, Bruno; Sargian, Peggy; Tomasino, Corinne; Guyomarch, J.; Van Ganse, S..
Dans le périmètre de la Directive Cadre Européenne sur l’Eau (DCE), une campagne menée entre mars et avril 2009 (N.O. "L’Europe") a permis d'évaluer la qualité des eaux côtières méditerranéennes françaises. Les objectifs étaient de compléter les résultats acquis en 2006, de déterminer, grâce en grande partie à la mise en oeuvre de stations artificielles de moules (réseau RINBIO), la contamination chimique de l’eau. Afin de pouvoir mesurer les concentrations de contaminants chimiques (métaux composés organiques hydrophobes et hydrophiles), des échantillonneurs passifs (DGT, SBSE et POCIS) ont également été utilisés au cours de cette campagne. Les données obtenues ont contribué à la caractérisation des masses d'eau par rapport à certains contaminants sur...
Tipo: Text Palavras-chave: Méditerranée; DCE; Contaminants chimiques (métaux et organiques); Échantillonneurs passifs; DGT; POCIS; SBSE.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00035/14620/11899.pdf
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Campagne ESSNAUT 2011. Rapport de la partie scientifique ArchiMer
Fabri, Marie-claire.
La participation d'un scientifique à cette campagne d'essai avait deux objectifs : 1 - Valider la chaine de traitement utilisée par les scientifiques lors des campagnes opérationnelles (Données Mimosa > Import Adelie > Traitement Adelie > Passage des données dans Alamer). 2 - Rentabiliser le temps bateau de nuit par l'acquisition de la bathymétrie multifaisceaux dans les canyons de Méditerranée.
Tipo: Text Palavras-chave: Bathymétrie; Plongées; Nautile; Canyons; Méditerranée.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00116/22705/20444.pdf
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Caractérisation de l'activité hydrosédimentaire dans le Système Turbiditique du Var (NO Méditerranée) et de son enregistrement dans l'archive sédimentaire ArchiMer
Mas, Virginie.
In the framework of the HERMES European project, this study aims to characterize the sedimentary processes acting in the Var turbiditic system, their impact on the morphology, and their evolution through time and space. This work uses data acquired along the system, including interface cores, acoustic data, and measurement in the water column (temperature, particulate fluxes, speed and direction of the currents) thanks to mooring lines. The Var turbiditic system is under the influences of the Northern Current and of the Var river by a direct connection. Sedimentary processes are related to gravity-driven currents, oceanic currents which remobilizes sediments and hemipelagic decantation. Gravity-driven processes are dominant and are responsible of 80% of...
Tipo: Text Palavras-chave: Var; Méditerranée; Bassin Ligure; Système turbiditique; Processus gravitaires; Courant de turbidité; Hyperpycnal; Crue; Var; Méditerranée; Ligurian Basin; Turbiditic system; Gravity-driven flows; Turbidity flows; Hyperpycnal; Flood.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00001/11219/7652.pdf
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Caractérisation de l’état écologique des Ecosystèmes Marins Vulnérables (VME) bathyaux benthiques de Méditerranée française (Mégafaune) ArchiMer
Pedel, Laura; Fabri, Marie-claire.
Ce document rapporte un état des lieux concernant les écosystèmes marins vulnérables (VME) du domaine bathyal dans les canyons des côtes méditerranéennes françaises. Il a été réalisé à partir d'informations disponibles à la date de sa réalisation, informations extraites de l'imagerie optique (photos et vidéos) enregistrées à partir de différents submersibles.
Tipo: Text Palavras-chave: DCSMM; Méditerranée; BEE; Bathyal; Vidéos; Photos; Indices.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00118/22925/20747.pdf
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Checklist of the macroalgae of Thau Lagoon (Herault, France), a hot spot of marine species introduction in Europe ArchiMer
Verlaque, Marc.
A checklist of macroalgae in Thau Lagoon (Herault, France), based on literature records and new collections, is given. Using present-day taxonomy, 196 taxa and stadia of macroalgae have been identified to date. Sixty of these were no longer found in the samples, 36 were new to the lagoon, and the taxonomic identity of 15 species was amended. Twenty-five new introduced taxa were identified, giving a total of 45 introduced macroalgae for the flora (23% of total). Among these, 17 taxa and several genera (Acrorhrix, Chondrus, Dasysiphonia (?), Prionitis) are new to the Mediterranean Sea and 12 are new to Europe. The majority (43 taxa) may originate from the Pacific region, having arrived either directly or via other aquaculture sites. A highly probable vector...
Tipo: Text Palavras-chave: Méditerranée; Étang de Thau; Inventaire; Macrophytes; Espèces introduites; Mediterranean Sea; Than Lagoon; Macroalga; Checklist; Introduced species.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00322/43368/42842.pdf
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Comparaison de méthodes d'évaluation de la production secondaire d'une population de l'annélide polychète Ditrupa arietina (O.F. Muller) ArchiMer
Medernach, L; Gremare, A.
We compared the ability of three direct methods (increment summation, loss summation and instantaneous growth rate coefficient), the size-frequency method, and eight indirect methods (Banse and Mosher, Benke, Brey, Edgar, Morin and Bourassa, Plante and Downing, Robertson and Schwinghamer et al.) to measure or to predict the secondary production of a Mediterranean population of the polychaete Ditrupa arietina. This comparison was carried out both on the 1994 cohort during its two-year lifespan and on the entire population during the two years of the study (1994-1996). Our results showed that all three direct methods are more or less equivalent. Results referring to the year 1994-1995 showed a strong overestimation of the actual production by the size...
Tipo: Text Palavras-chave: Production secondaire; Méthodes; Polychètes; Méditerranée; Secondary production; Methods; Polychaetes; Mediterranean Sea.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43614/43916.pdf
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Comparison of methods for stock assessment of European hake Merluccius merluccius in the Gulf of Lions (Northwestern mediterranean) ArchiMer
Aldebert, Yvonne; Recasens, Laura.
European hake Merluccius merluccius is the main commercial demersal species in the Gulf of Lions (Northwestern Mediterranean). This fish is exploited by French and Spanish trawler fleets and by small-scale fisheries using gillnets and longlines. Data on landings and the demography of catches by type of gear are now available for the period 1988-1991. The assessment of the hake stock was carried out using methods of virtual population analysis (VPA), or cohort analysis, based respectively on mean pseudocohorts and cohorts by age. The results of these VPA were then analysed and compared from a methodological point of view. The general results have confirmed previous studies with regard to the level of exploitation of the species. The two methods gave quite...
Tipo: Text Palavras-chave: Merluccius merluccius; Méditerranée; Méthodologie; Évaluation des stocks; Démographie des captures; Mortalité par pêche; Merluccius merluccius; Mediterranean Sea; Methodology; Stock assessment; Population structure; Fishing mortality.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00188/29886/28341.pdf
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Conférence de l'EAS "Biotechnologies for quality". Barcelone, Espagne, 20-23 octobre 2004 - Rapport de mission ArchiMer
Lacroix, Denis.
Le congrès annuel de l'EAS (European Aquaculture Society) a rassemblé pendant 4 jours 531 chercheurs, producteurs et responsables institutionnels de 47 nationalités. Il a donné lieu à la présentation de 105 communications orales et de 274 posters. La thématique générale du congrès était construite sur le thème général suivant: Biotechnologies for quality. Il s'agissait de montrer que les biotechnologies, qui font parfois peur au consommateur comme au citoyen, constituent un outil privilégié de développement de l'aquaculture, y compris dans les aspects de développement durable. De fait, aujourd'hui, les attentes du grand public restent centrées autour des notions de qualité, sécurité, bien-être et santé animale. Le représentant de la Commission européenne a...
Tipo: Text Palavras-chave: Aquaculture; Biotechnologie; Qualité; Europe; Méditerranée.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00153/26450/24554.pdf
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Croissance et indice de condition de l'huître plate Ostrea edulis élevée en mer et en étang sur la côte méditerranéenne ArchiMer
Paquotte, Philippe; Moriceau, Jacques.
A monitoring of the growth and condition index of the flat oyster Ostrea edulis has been conducted in the Thau Lagoon and in open sea off the Cap d'Agde. Between April and November, its growth is greater in open sea than in the lagoon. In winter, the growth doesn't stop in open sea, but one needs to get away from mussel collection in practicing seabed farming. In these conditions, the oyster's growth, throughout the year, is very close in open sea and in lagoons whereas the condition index is higher in open sea.
Tipo: Text Palavras-chave: Méditerranée; Mer ouverte; Etang de Thau; Indice de condition; Croissance; Ostrea edulis.
Ano: 1986 URL: http://archimer.ifremer.fr/doc/1986/acte-6188.PDF
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Croissance et qualité de l'huître ceuse Crassostrea gigas dans le bassin de Thau (Hérault) : Résultats d'une étude réalisée en 1990-1991 ArchiMer
Pichot, Paul; Landrein, Sonia; Juge, Claude.
During years 1990-1991, a study was carried ouI in order to precise the relationship between sorne physiological features and the biochemical characteristics of dry flesh and hemolymf of oyster Crassostrea gigas, cultivated in the mediterranean lagoon of Thau. Growth rates and biochemical analysis for proteins, lipids and carbohydrates were estimated. The results of this study are given. They include many other data from a study on trophic relationships developed between 1985-1989.
Tipo: Text Palavras-chave: Méditerranée; Etang de Thau; Crassostrea gigas; Croissance; Composition biochimique; Protides; Lipides; Glucides; Mediterranean; Lagoon of Thau; Crassostrea gigas; Growth; Biochemical composition; Proteins; Lipids; Carbohydrates.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00419/53031/53966.pdf
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