|
|
|
| Registros recuperados: 62 | |
|
|
| Fabri, Marie-claire; Andral, Bruno. |
| La Directive Cadre Stratégie pour le Milieu Marin (DCSMM) promeut une approche écosystémique de la gestion des mers et des océans. Face à cet objectif ambitieux et dans le cadre de leur convention signée en 2005, l’Agence de l’Eau Rhône Méditerranée et Corse a demandé à l’Ifremer une analyse de l’application de la DCSMM dans la sous-région Méditerranée occidentale, et de son articulation, notamment avec la Convention de Barcelone et la Directive Cadre sur l'Eau (DCE). Ce soutien vient en complément de celui apporté par l’Ifremer au plan national au Ministère de l’Ecologie, de l’Energie, du Développement Durable des Transports et du Logement dans le périmètre de son expertise auprès de l’Agence de l’Eau. Une analyse des onze descripteurs recommandée par la... |
| Tipo: Text |
Palavras-chave: DCSMM; DCE; Réseaux de surveillance; Observatoires; Descripteurs; Indicateurs. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00043/15392/12728.pdf |
| |
|
|
| De Busserolles, F.; Sarrazin, Jozee; Gauthier, Olivier; Gelinas, Y.; Fabri, Marie-claire; Sarradin, Pierre-marie; Desbruyeres, Daniel. |
| Trophic relationships in Bathymodiolus azoricus mussel bed communities on the Tour Eiffel hydrothermal edifice (Lucky Strike) were assessed using delta C-13 and delta N-15 signatures from 14 hydrothermal species. The nutritional basis of B. azoricus was also investigated with delta S-34. Faunal samples and environmental data (temperature, pH, total dissolved sulfide, iron and copper concentrations) were collected from 12 different locations on the edifice. Chemical conditions varied between microhabitats, and were all correlated to temperature. Carbon and nitrogen isotopic results revealed the presence of two, apparently independent, trophic groups. The first was composed of symbiont-bearing fauna (B. azoricus and their associated polychaetes... |
| Tipo: Text |
Palavras-chave: Lucky Strike (37 degrees 17.29 ' N 32 degrees 16.45 ' W); Mid Atlantic Ridge; Food webs; Hydrothermal springs; Environmental conditions; Stable isotopes. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-7312.pdf |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Sarrazin, Jozee; Legendre, Pierre; De Busserolles, Fanny; Fabri, Marie-claire; Guilini, Katja; Ivanenko, Viatcheslav N.; Morineaux, Marie; Vanreusel, Ann; Sarradin, Pierre-marie. |
| Knowledge on quantitative faunal distribution patterns of hydrothermal communities in slow-spreading vent fields is particularly scarce, despite the importance of these ridges in the global mid-ocean system. This study assessed the composition, abundance and diversity of 12 benthic faunal assemblages from various locations on the Eiffel Tower edifice (Lucky Strike vent field, Mid-Atlantic Ridge) and investigated the role of key environmental conditions (temperature, total dissolved iron (TdFe), sulfide (TdS), copper (TdCu) and pH) on the distribution of macro- and meiofaunal species at small spatial scales (< 1 m). There were differences in macro- and meiofaunal community structure between the different sampling locations, separating the hydrothermal... |
| Tipo: Text |
Palavras-chave: Biodiversity patterns; Environmental drivers; Indicator species; Hydrothermal vents; Mid-Atlantic Ridge; Meiofauna; Macrofauna; Lucky Strike. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00266/37713/35731.pdf |
| |
|
|
| Cuvelier, Daphne; De Busserolles, Fanny; Lavaud, Romain; Floc'H, Estelle; Fabri, Marie-claire; Sarradin, Pierre-marie; Sarrazin, Jozee. |
| In the past few decades, hydrothermal vent research has progressed immensely, resulting in higher-quality samples and long-term studies. With time, scientists are becoming more aware of the impacts of sampling on the faunal communities and are looking for less invasive ways to investigate the vent ecosystems. In this perspective, imagery analysis plays a very important role. With this study, we test which factors can be quantitatively and accurately assessed based on imagery, through comparison with faunal sampling. Twelve instrumented chains were deployed on the Atlantic Eiffel Tower hydrothermal edifice and the corresponding study sites were subsequently sampled. Discrete, quantitative samples were compared to the imagery recorded during the experiment.... |
| Tipo: Text |
Palavras-chave: Hydrothermal vents; Image analyses; Deep ocean; Taxonomic diversity; Mid-Atlantic Ridge; Data processing; Benthic ecology. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00117/22868/21643.pdf |
| |
|
| |
|
| |
|
| |
|
|
| Stuart, Carol T.; Arbizu, Pedro Martinez; Smith, Craig R.; Molodtsova, Tina; Brandt, Angelika; Etter, Ron J.; Escobar-briones, Elva; Fabri, Marie-claire; Rex, Michael A.. |
| The Census of the Diversity of Abyssal Marine Life (CeDAMar), a division of the Census of Marine Life, has compiled the first comprehensive global database of biological samples taken in the abyssal plains of the world ocean. It is an essential resource for planning future exploration of the abyss, for synthesizing patterns of biogeography and biodiversity, and for environmentally safe exploitation of natural resources. The database is described in this article, and made available to investigators through the CeDAMar website. |
| Tipo: Text |
Palavras-chave: Abyssal; Marine benthos; Database; Deep sea; Biodiversity. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-6091.pdf |
| |
|
|
| Fabri, Marie-claire; Loubrieu, Benoit; Dupre, Stephanie; Opderbecke, Jan; Lurton, Xavier. |
| Ce document a pour objectif de préparer une réunion sur le choix du type de charge utile "Acoustique" pour le H-ROV. Ce document s'intéresse à la charge utile "cartographie acoustique". Il est réalisé avec l'objectif de préparer une réunion du groupe de travail scientifique du H-ROV. Il propose un bilan des différentes charges utiles acoustiques embarquables sur un engin sous-marin, ainsi que leur avantages et leurs inconvénients au regard des caractéristiques techniques du H-ROV. Au final un SONDEUR MULTIFAISCEAUX a été le choix considéré comme étant le plus adapté à l'environnement probable d'exploration du HROV (milieu à fort relief) ainsi qu'à ses caractéristiques techniques (autonomie réduite). Lors de l'intégration sur le SKID "Acoustique", il faudra... |
| Tipo: Text |
Palavras-chave: H-ROV; Cartographie acoustique. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00233/34382/32753.pdf |
| |
|
|
| Olu, Karine; Caprais, Jean-claude; Fifis, Alexis; Fabri, Marie-claire; Galeron, Joelle; Budzinsky, H; Le Menach, K; Khripounoff, Alexis; Ondreas, Helene; Sibuet, Myriam. |
| A giant pockmark colonised by dense cold-seep assemblages near 3160 m depth along the Congo-Angola margin has been surveyed by the ROV Victor 6000. The quantitative distribution of chemosynthetic communities was mapped along the dive tracks from a video study using GIS and image mosaicking. Several types of faunal assemblages, either dominated by bivalves of the families Mytilidae (Bathmodiolus sp.) Vesicom idae (Calyptogena sp., 'Vesicomya' aff. chuni), or by Siboglinidae polychaetes (Escarpia southwardae) were mapped over the 800-m diameter pockmark area and sampled for fauna, water and sediment. The isotopic analyses (delta C-13) of tissues from symbiont-bearing species were within the range typical of nutrition via symbiosis using methane for mussels... |
| Tipo: Text |
Palavras-chave: Symbiont bearing species; Spatial distribution; Methane; Megafauna; Cold seeps. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2681.pdf |
| |
|
| |
|
| |
|
| |
|
|
| Sarrazin, Jozee; Walter, Cecile; Sarradin, Pierre-marie; Brind'Amour, Anik; Desbruyeres, Daniel; Briand, Patrick; Fabri, Marie-claire; Van Gaever, S; Vanreusel, A; Bachraty, Charleyne; Thiebaut, E. |
| The composition, biomass and diversity of the fauna in a Bathymodiolus thermophilus mussel assemblage colonizing diffuse flow areas on the SEPR is described and compared with biological characteristics of other hydrothermal assemblages. The spatio-temporal dynamics of temperatures over fine scales within the mussel habitat are characterized using newly-developed statistical approaches. Temperature data obtained from two adjacent habitats (a cirriped assemblage and a bare substratum) are compared. The results of the temperature data show that the mean temperature and the temperature variations were significantly higher in the mussel assemblage (mean temperature: 4.12 +/- 1.85 degrees C) in comparison with 2.40 +/- 0.14 degrees C in the cirriped assemblage... |
| Tipo: Text |
Palavras-chave: East Pacific Rise; Temperature dynamics; Biomass; Diversity; Bathymodiolus thermophilus; Mussel assemblage; Hydrothermal vents. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-3570.pdf |
| |
|
|
| Biseau, Alain; Le Mao, Patrick; Sartoretto, Stephane; Tourolle, Julie; Menot, Lenaick; Fabri, Marie-claire; Larnaud, Pascal; Drogou, Mickael; Morandeau, Fabien; Vacherot, Jean-philippe; Vermard, Youen. |
| Tipo: Text |
|
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00300/41147/41077.pdf |
| |
| Registros recuperados: 62 | |
|
|
|
