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| Registros recuperados: 59 | |
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| Sarradin, Pierre-marie; Sarrazin, Jozee; Cadiou, Jean-francois; Olu, Karine; Desbruyeres, Damien; Rigaud, Vincent; Drogou, Jean-francois; Lecornu, Fabrice; Rolin, Jean-francois; Vuillemin, Renaud; Cambon-bonavita, Marie-anne; Sauter, E; Von Juterzenka, K; Boetius, A; Santos, Rs; Colaco, Ana; Pascoal, A; Oliveira, Paulo; Shillito, Bruce; Zal, F; Schultz, A; Taylor, P; Lane, D; Loke, Rob; Du Buf, H; Waldmann, C; Cormack, A; Sanfilippo, L; Masson, M. |
| The general objective of EXOCET/D is to develop, implement and test specific instruments aimed at exploring, describing, quantifying and monitoring biodiversity in deep-sea fragmented habitats as well as at identifying links between community structure and environmental dynamics. Onboard experimental devices will complement the approach, enabling experiments on species physiology. The EXOCET/D working fields include: video and acoustic imagery, in situ analysis of physico-chemical factors, quantitative sampling of macroand micro-organisms, in vivo experiments, integration of multidisciplinary data, implementation on European deep-submersibles and a final phase of technical and scientific validation |
| Tipo: Text |
Palavras-chave: Deep sea; Ecosystem; Imagery; In situ analysis; Faunal sampling; Submersibles; Observatory. |
| Ano: 2004 |
URL: https://archimer.ifremer.fr/doc/2007/publication-3600.pdf |
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| Laureillard, J; Mejanelle, L; Sibuet, Myriam. |
| Xenophyophores, widespread giant deep-sea protists, dominate the megafaunal organisms visible on the seafloor in some areas. Owing to the extreme fragility of their tests (external part), little is known about them, and their diet is largely a matter of speculation. The extensive accumulation of fecal pellets (stercomes) within their tests attests to the degree to which xenophyophores feed on particulate matter. During the EUMELI 2 cruise, xenophyophores were recovered intact at the surface of box-cores from an abyssal mesotrophic site in the northeastern Atlantic. They were identified as Syringammina corbicula. In our study, we compare the lipid composition of xenophyophores collected at the top of cores with sediment from the same mesotrophic environment... |
| Tipo: Text |
Palavras-chave: Xenophyophores; Lipids; Nutrition; Deep sea; Northeastern tropical Atlantic. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/00000/10798/7581.pdf |
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| Bonifacio, Paulo; Menot, Lenaick. |
| Polynoidae contains ~900 species within 18 subfamilies, some of them restricted to the deep sea. Macellicephalinae is the most diverse among these deep-sea subfamilies. In the abyssal Equatorial Pacific Ocean, the biodiversity of benthic communities is at stake in the Clarion-Clipperton Fracture Zone (CCFZ) owing to increased industrial interest in polymetallic nodules. The records of polychaetes in this region are scarce. Data gathered during the JPI Oceans cruise SO239 made a significant contribution to fill this gap, with five different localities sampled between 4000 and 5000 m depth. Benthic samples collected using an epibenthic sledge or a remotely operated vehicle resulted in a large collection of polynoids. The aims of this study are as follows:... |
| Tipo: Text |
Palavras-chave: Deep sea; Identification key; Molecular systematics; Morphology; New genera; New species; Phylogeny; Polychaeta. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00467/57902/60217.pdf |
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| Cosson-sarradin, Nathalie; Sibuet, Myriam; Paterson, Glj; Vangriesheim, Annick. |
| This study assesses how differences in nutrient flux and bottom currents affect the diversity and trophic structure of deep-sea polychaete communities from the tropical northeast Atlantic at 20 degrees to 21 degrees N latitude. Faunal assemblages were studied from 3 sets of USNEL box cores (0.25 m(2)) taken at depths of 1700, 3100 and 4600 m. In terms of primary productivity, the cores were taken beneath water which is eutrophic, mesotrophic and oligotrophic, respectively. Total polychaete abundance, abundance of dominant species, and faunal similarity and diversity were compared among the 3 sites. Polychaete abundance decreased with increasing depth. Community structure reflected environmental characteristics as well as the influence of coastal upwelling.... |
| Tipo: Text |
Palavras-chave: Deep sea; Tropical Atlantic; Diversity; Polychaete community; Environmental conditions. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00179/28978/27398.pdf |
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| Williams, S. T.; Smith, L. M.; Herbert, D.g.; Marshall, B. A.; Waren, A.; Kiel, S.; Dyal, P.; Linse, K.; Vilvens, C.; Kano, Y.. |
| Recent expeditions have revealed high levels of biodiversity in the tropical deep-sea, yet little is known about the age or origin of this biodiversity, and large-scale molecular studies are still few in number. In this study, we had access to the largest number of solariellid gastropods ever collected for molecular studies, including many rare and unusual taxa. We used a Bayesian chronogram of these deep-sea gastropods (1) to test the hypothesis that deep-water communities arose onshore, (2) to determine whether Antarctica acted as a source of diversity for deep-water communities elsewhere and (3) to determine how factors like global climate change have affected evolution on the continental slope. We show that although fossil data suggest that solariellid... |
| Tipo: Text |
Palavras-chave: Biogeography; Deep sea; EoceneOligocene transition; Phylogeny. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00140/25122/23231.pdf |
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| Alfaro-lucas, Joan Manel; Shimabukuro, Mauricio; Ogata, Isabella, V; Fujiwara, Yoshihiro; Sumida, Paulo Y. G.. |
| The trophic structure and role of chemosynthesis remain unexplored in deep-sea whale-fall communities in areas other than the California margin. This gap limits the understanding of these communities and their ecological relationships with other chemosynthetic ecosystems, such as vents and seeps. Here, we studied 3 different whale skeleton microhabitats with hypothesized high, intermediate and low reducing conditions as well as the sediments surrounding an abyssal whale fall (4204 m depth, SW Atlantic Ocean). We analyzed trophic structures (δ13C and δ15N) and the contribution of chemosynthetically derived carbon to heterotrophic species. The high and intermediate reducing microhabitats harbored food webs dominated by consumers of chemosynthetic production,... |
| Tipo: Text |
Palavras-chave: Deep sea; Whale fall; Trophic structure; Chemosynthesis; Osedax. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00442/55342/56853.pdf |
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| Vanreusel, Ann; Fonseca, Gustavo; Danovaro, Roberto; Da Silva, Maria Cristina; Esteves, Andre M.; Ferrero, Tim; Gad, Gunnar; Galtsova, Valentina; Gambi, Cristina; Genevois, Veronica Da Fonseca; Ingels, Jeroen; Ingole, Baban; Lampadariou, Nikolaos; Merckx, Bea; Miljutin, Dmitry; Miljutina, Maria; Muthumbi, Agnes; Netto, Sergio; Portnova, Daria; Radziejewska, Teresa; Raes, Maarten; Tchesunov, Alexei; Vanaverbeke, Jan; Van Gaever, Saskia; Venekey, Virag; Bezerra, Tania Nara; Flint, Hannah; Copley, John; Pape, Ellen; Zeppilli, Daniela; Martinez, Pedro Arbizu; Galeron, Joelle. |
| The great variety of geological and hydrological conditions in the deep sea generates many different habitats. Some are only recently explored, although their true extent and geographical coverage are still not fully established. Both continental margins and mid-oceanic seafloors are much more complex ecologically, geologically, chemically and hydrodynamically than originally thought. As a result, fundamental patterns of species distribution first observed and explained in the context of relatively monotonous slopes and abyssal plains must now be re-evaluated in the light of this newly recognized habitat heterogeneity. Based on a global database of nematode genus composition, collected as part of the Census of Marine Life, we show that macrohabitat... |
| Tipo: Text |
Palavras-chave: Biodiversity; Census of marine life; Deep sea; Habitat heterogeneity; Meiofauna; Nematode genera. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00002/11280/11783.pdf |
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| Zeppilli, Daniela; Leduc, Daniel; Fontanier, Christophe; Fontaneto, Diego; Fuchs, Sandra; Gooday, Andrew J.; Goineau, Aurelie; Ingels, Jeroen; Ivanenko, Viatcheslav N.; Kristensen, Reinhardt Mobjerg; Neves, Ricardo Cardoso; Sanchez, Nuria; Sandulli, Roberto; Sarrazin, Jozee; Sorensen, Martin V.; Tasiemski, Aurelie; Vanreusel, Ann; Autret, Marine; Bourdonnay, Louis; Claireaux, Marion; Coquille, Valerie; De Wever, Lisa; Rachel, Durand; Marchant, James; Toomey, Lola; Fernandes, David. |
| Extreme marine environments cover more than 50% of the Earth’s surface and offer many opportunities for investigating the biological responses and adaptations of organisms to stressful life conditions. Extreme marine environments are sometimes associated with ephemeral and unstable ecosystems, but can host abundant, often endemic and well-adapted meiofaunal species. In this review, we present an integrated view of the biodiversity, ecology and physiological responses of marine meiofauna inhabiting several extreme marine environments (mangroves, submarine caves, Polar ecosystems, hypersaline areas, hypoxic/anoxic environments, hydrothermal vents, cold seeps, carcasses/sunken woods, deep-sea canyons, deep hypersaline anoxic basins [DHABs] and hadal zones).... |
| Tipo: Text |
Palavras-chave: Extreme environments; Meiofauna; Mangroves; Submarine caves; Polar ecosystems; Melting ice; Hypersaline areas; Anoxic and hypoxic zones; Hydrothermal vents; Cold seeps; Carcasses and sunken woods; Deep sea; Submarine canyons; Deep hypersaline anoxic basins (DHABs); Hadal zones. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00410/52140/52851.pdf |
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| Henry, L. -a.; Stehmann, M. F. W.; De Clippele, L.; Findlay, H. S.; Golding, N.; Roberts, J. M.. |
| Highly localized concentrations of elasmobranch egg capsules of the deep-water skate Bathyraja richardsoni were discovered during the first remotely operated vehicle (ROV) survey of the Hebrides Terrace Seamount in the Rockall Trough, north-east Atlantic Ocean. Conductivity–temperature–depth profiling indicated that the eggs were bathed in a specific environmental niche of well-oxygenated waters between 4·20 and 4·55° C, and salinity 34·95–35·06, on a coarse to fine-grained sandy seabed on the seamount's eastern flank, whereas a second type of egg capsule (possibly belonging to the skate Dipturus sp.) was recorded exclusively amongst the reef-building stony coral Solenosmilia variabilis. The depths of both egg-laying habitats (1489–1580 m) provide a de... |
| Tipo: Text |
Palavras-chave: Deep sea; Elasmobranch; Environment; Habitat; Reproduction. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00344/45508/45061.pdf |
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| Borda, Elizabeth; Kudenov, Jerry D.; Chevaldonne, Pierre; Blake, James A.; Desbruyeres, Damien; Fabri, Marie-claire; Hourdez, Stephane; Pleijel, Fredrik; Shank, Timothy M.; Wilson, Nerida G.; Schulze, Anja; Rouse, Greg W.. |
| Since its description from the Galapagos Rift in the mid-1980s, Archinome rosacea has been recorded at hydrothermal vents in the Pacific, Atlantic and Indian Oceans. Only recently was a second species described from the Pacific Antarctic Ridge. We inferred the identities and evolutionary relationships of Archinome representatives sampled from across the hydrothermal vent range of the genus, which is now extended to cold methane seeps. Species delimitation using mitochondrial cytochrome c oxidase subunit I (COI) recovered up to six lineages, whereas concatenated datasets (COI, 16S, 28S and ITS1) supported only four or five of these as clades. Morphological approaches alone were inconclusive to verify the identities of species owing to the lack of discrete... |
| Tipo: Text |
Palavras-chave: Deep sea; Hydrothermal vents; Cold methane seeps; Cryptic species; Polychaete. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00157/26814/24961.pdf |
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| Toucanne, Samuel; Zaragosi, S.; Bourillet, Jean-francois; Cremer, M.; Eynaud, Frederique; Van Vliet-lanoe, B.; Penaud, A.; Fontanier, C.; Turon, J. L.; Cortijo, E.; Gibbard, P. L.. |
| Continuous high-resolution mass accumulation rates (MAR) and X-ray fluorescence (XRF) measurements from marine sediment records in the Bay of Biscay (NE Atlantic) have allowed the determination of the timing and the amplitude of the ‘Fleuve Manche’ (Channel River) discharges during glacial stages MIS 10, MIS 8, MIS 6 and MIS 4–2. These results have yielded detailed insight into the Middle and Late Pleistocene glaciations in Europe and the drainage network of the western and central European rivers over the last 350 kyr. This study provides clear evidence that the ‘Fleuve Manche’ connected the southern North Sea basin with the Bay of Biscay during each glacial period and reveals that ‘Fleuve Manche’ activity during the glaciations MIS 10 and MIS 8 was... |
| Tipo: Text |
Palavras-chave: Northern north sea; Late weichselian glaciation; Western iberian margin; Abrupt climate change; C 14 YR BP; Deep sea; Heinrich events; Norwegian margin; Millennial scale; English channel. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00011/12261/9037.pdf |
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| Corbera, J; Segonzac, Michel; Cunha, M. |
| A new cumacean genus and species, Thalycrocuma sarradini gen. et sp. nov., belonging to the family Nannastacidae is described from several sites of the Lucky Strike hydrothermal vent field (Mid-Atlantic Ridge, 37N, 1700 m depth). The new genus differs from others in the family by males lacking exopods on the pereopods 3 and 4 and having an antenna with a five-articulate peduncle and a short flagellum. This is the first cumacean species that could be considered, at the moment, as endemic from hydrothermal vent areas. Data on the accompanying fauna including other cumacean species (Cyclaspis longicaudata, Bathycuma brevirostre, Procampylaspis sp. and Makrokylindrus sp.) and some ecological remarks are included. A key for the currently known genera of the... |
| Tipo: Text |
Palavras-chave: Systematics; Morphology; Mid Atlantic Ridge; Hydrothermal vents; Deep sea; Cumacea. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4358.pdf |
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| Cepeda, Diego; Pardos, Fernando; Zeppilli, Daniela; Sánchez, Nuria. |
| Cold seep areas are extremely reduced habitats with spatiotemporal variation of hydrocarbon-rich fluid seepage, low oxygen levels, and great habitat heterogeneity. Cold seeps can create circular to ellipsoid shallow depressions on the seafloor called pockmarks. We investigated two selected pockmarks, characterized by different gas emission, and two sites outside these geological structures at the Mozambique Channel to understand whether and how their environmental conditions affect the kinorhynch fauna in terms of density, richness, and community composition. A total of 11 species have been found living in the studied area, of which three are new species: Fissuroderes cthulhu sp. nov., Fujuriphyes dagon sp. nov., and Fujuriphyes hydra sp. nov. Densities... |
| Tipo: Text |
Palavras-chave: Cold seeps; Deep sea; Ecology; Kinorhynchs; Meiofauna; Diversity; Taxonomy. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00648/75992/76894.pdf |
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| 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 |
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| Fernandez-arcaya, Ulla; Bitetto, Isabella; Esteban, Antonio; Farriols, M. Teresa; García-ruiz, Cristina; Gil De Sola, Luis; Guijarro, Beatriz; Jadaud, Angelique; Kavadas, Stefanos; Lembo, Giuseppe; Milisenda, Giacomo; Maina, Irida; Petovic, Slavica; Sion, Letizia; Vaz, Sandrine; Massutí, Enric. |
| The large-scale distribution pattern of megafauna communities along the Mediterranean middle slope was explored. The study was conducted between 500 and 800 m depth where deep-water fishery occurs. Although community studies carried out deeper than 500 m are partly available for some geographic areas, few large-scale comparative studies have been carried out. Within the framework of the MEDITS survey programme, we compared the megafauna community structure in ten geographical sub-areas (GSAs) along the Mediterranean coasts. Additionally, the spatial distribution of fishing was analysed using vessel monitoring by satellite information. Overall, the community showed a significant difference between sub-areas, with a decreasing eastward pattern in abundance... |
| Tipo: Text |
Palavras-chave: Distribution pattern; Fishing impact; Continental slope; Deep sea; Megafauna; Red shrimp; Community. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00489/60051/63328.pdf |
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| Registros recuperados: 59 | |
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