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| Registros recuperados: 36 | |
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| Pethybridge, H.; Daley, R.; Virtue, P.; Butler, E. C. V.; Cossa, Daniel; Nichols, P. D.. |
| Total mercury (Hg) concentrations and lipid composition data, including fatty acid profiles, for 61 midtrophic species (fish, cephalopods, crustaceans) collected from continental slope waters off south-east Australia were examined. Overall, Hg concentrations were greatest in fish (0.01-0.30 mu g g(-1) ww) (with highest content found in barracouta (Thyrsites atun) and whiptails (Coelorinchus fasciatus)), compared with cephalopods (0.01 and 0.17 mu g g(-1) ww) and crustaceans (<0.04 mu g g(-1) ww). Lipid composition varied between species and within habitat (mesopelagic, bathypelagic and benthic). Mean total lipid content ranged from 0.5 to 13.2% ww, and in most species was dominated by triacylglycerols and phospholipids. In fish and squid, fatty acids... |
| Tipo: Text |
Palavras-chave: Deep-sea; Ecosystem dynamics; Fatty acids; Lipids; Mercury; Mid-trophic prey; Mid-water. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00016/12685/9655.pdf |
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| Moura, Teresa; Jones, Emma; Clarke, Maurice W.; Cotton, Charles F.; Crozier, Paul; Daley, Ross K.; Diez, Guzman; Dobby, Helen; Dyb, Jan E.; Fossen, Inge; Irvine, Sarah B.; Jakobsdottir, Klara; Lopez-abellan, Luis J.; Lorance, Pascal; Pascual-alayon, Pedro; Severino, Ricardo B.; Figueiredo, Ivone. |
| Deep-water sharks exhibit species-specific reproductive strategies, which include segregation by sex, size and reproductive stage. However, due to the wide spatial distribution of most species, available information, usually collected at a regional scale, is usually not adequate to infer species reproductive spatial dynamics. This study draws together information on the distribution of reproductive stages of three species of squaliform sharks: Portuguese dogfish Centroscymnus coelolepis (Somniosidae), leafscale gulper shark Centrophorus squamosus (Centrophoridae) and birdbeak dogfish Deania calcea (Centrophoridae), gathering data from several geographical areas from the Atlantic, Indian and Pacific Oceans. For each species we analysed the sex ratio and the... |
| Tipo: Text |
Palavras-chave: Commercial fishery data; Deep-sea; Life stage; Population structure; Survey data. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00188/29902/29420.pdf |
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| Johnson, Shannon B.; Won, Yong-jin; Harvey, Julio B. J.; Vrijenhoek, Robert C.. |
| Background: The inhabitants of deep-sea hydrothermal vents occupy ephemeral island-like habitats distributed sporadically along tectonic spreading-centers, back-arc basins, and volcanically active seamounts. The majority of vent taxa undergo a pelagic larval phase, and thus varying degrees of geographical subdivision, ranging from no impedance of dispersal to complete isolation, often exist among taxa that span common geomorphological boundaries. Two lineages of Bathymodiolus mussels segregate on either side of the Easter Microplate, a boundary that separates the East Pacific Rise from spreading centers connected to the Pacific-Antarctic Ridge. Results: A recent sample from the northwest flank of the Easter Microplate contained an admixture of northern... |
| Tipo: Text |
Palavras-chave: Bathymodiolus antarcticus n. sp; Hybridization; Recombination; Linkage disequilibrium; Deep-sea; Hydrothermal vent; Bathymodiolus thermophilus. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00185/29626/28000.pdf |
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| Puerta, Patricia; Johnson, Clare; Carreiro-silva, Marina; Henry, Lea-anne; Kenchington, Ellen; Morato, Telmo; Kazanidis, Georgios; Luis Rueda, Jose; Urra, Javier; Ross, Steve; Wei, Chih-lin; Manuel Gonzalez-irusta, Jose; Arnaud-haond, Sophie; Orejas, Covadonga. |
| Circulation patterns in the North Atlantic Ocean have changed and re-organized multiple times over millions of years, influencing the biodiversity, distribution, and connectivity patterns of deep-sea species and ecosystems. In this study, we review the effects of the water mass properties (temperature, salinity, food supply, carbonate chemistry, and oxygen) on deep-sea benthic megafauna (from species to community level) and discussed in future scenarios of climate change. We focus on the key oceanic controls on deep-sea megafauna biodiversity and biogeography patterns. We place particular attention on cold-water corals and sponges, as these are ecosystem-engineering organisms that constitute vulnerable marine ecosystems (VME) with high associated... |
| Tipo: Text |
Palavras-chave: North Atlantic; Deep-sea; Biodiversity; Biogeography; Water masses; Vulnerable marine ecosystems. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00628/74006/73330.pdf |
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| Boavida, Joana; Becheler, Ronan; Choquet, Marvin; Frank, Norbert; Taviani, Marco; Bourillet, Jean-francois; Meistertzheim, Anne‐leila; Grehan, Anthony; Savini, Alessandra; Arnaud-haond, Sophie. |
| Aim To infer cold‐water corals’ (CWC) post‐glacial phylogeography and assess the role of Mediterranean Sea glacial refugia as origins for the recolonization of the northeastern Atlantic Ocean. Location Northeastern Atlantic Ocean and Mediterranean Sea. Taxon Lophelia pertusa, Madrepora oculata. Methods We sampled CWC using remotely operated vehicles and one sediment core for coral and sediment dating. We characterized spatial genetic patterns (microsatellites and a nuclear gene fragment) using networks, clustering and measures of genetic differentiation. Results Inferences from microsatellite and sequence data were congruent, and showed a contrast between the two CWC species. Populations of L. pertusa present a dominant pioneer haplotype, local haplotype... |
| Tipo: Text |
Palavras-chave: Cold-water corals; Deep-sea; Glacial marine refugia; Last Glacial Maximum; Lophelia pertusa; Madrepora oculata; Marine phylogeography. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00487/59864/63140.pdf |
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| Khripounoff, Alexis; Caprais, Jean-claude; Decker, Carole; Le Bruchec, J.; Noel, Philippe; Husson, Berengere. |
| We studied bivalves (vesicomyids and mytilids) inhabiting four different areas of high sulfide and methane production: 1) in the Gulf of Guinea, two pockmarks (650 m and 3150 m depth) and one site rich in organic sediments in the deepest zone (4950 m average depth), 2) at the Azores Triple Junction on the Mid-Atlantic Ridge, one hydrothermal site (Lucky Strike vent field, 1700 m depth). Two types of Calmar benthic chambers were deployed, either directly set into the sediment (standard Calmar chamber) or fitted with a tank to isolate organisms from the sediment (modified Calmar chamber), to assess gas and solute exchanges in relation to bivalve bed metabolism. Fluxes of oxygen, total carbon dioxide, ammonium and methane were measured. At the site with... |
| Tipo: Text |
Palavras-chave: Deep-sea; Benthic chamber; Vesicomyid and Mytilid bivalves; Respiration rate; Cold seep; Hydrothermal vent. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00341/45204/44614.pdf |
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| Bianchi, A; Calafat, A; De Wit, R; Garcin, J; Tholosan, O; Cacho, I; Canals, M; Fabres, J; Grout, H; Masque, P; Sanchez-cabeza, Ja; Sempere, R. |
| Microbiological and biogeochemical studies were carried out in sediments and near bottom waters in the upwelling area off the Malaga coast and in the Almeria-Oran frontal zone. In these nutrient-rich conditions, metabolic activity is potentially limited by oxygen availability through the sediment depth. In the surficial sediments of the frontal zone, however, oxygen penetrated to a depth of 4 cm, allowing oxic mineralisation processes to occur throughout the layer. In the surficial sediments of the upwelling area, oxygen penetration was limited to the top 2.5 cm, leading to anoxic conditions. Glutamate respiration and global oxygen uptake rates were clearly higher than in the frontal zone. In the superficial sediments of the frontal zone, bacteria were... |
| Tipo: Text |
Palavras-chave: Taux de minéralisation; Sédiments; Eaux profondes; Méditerranée occidentale; Bacteria; Mineralisation rate; Sediments; Deep-sea; Western Mediterranean. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00322/43298/43034.pdf |
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| Morato, Telmo; Pham, Christopher K.; Fauconnet, Laurence; Taranto, Gerald H.; Chimienti, Giovanni; Cordes, Erik; Dominguez-carrio, Carlos; Munoz, Pablo Duran; Egilsdottir, Hronn; Gonzalez-irusta, Jose-manuel; Grehan, Anthony; Hebbeln, Dierk; Henry, Lea-anne; Kazanidis, Georgios; Kenchington, Ellen; Menot, Lenaick; Molodtsova, Tina N.; Orejas, Covadonga; Ramiro-sanchez, Berta; Ramos, Manuela; Roberts, J. Murray; Rodrigues, Luis; Ross, Steve W.; Rueda, Jose L.; Sacau, Mar; Stirling, David; Carreiro-silva, Marina. |
| Tipo: Text |
Palavras-chave: Deep-sea; Deep-sea fisheries; Marine protected areas; Area-based management tools; Sponges; Cold-water corals; Vulnerable marine ecosystems; Ecologically or biologically significant marine areas. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00689/80109/83167.pdf |
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| Le Moine Bauer, Sven; Sjøberg, Andreas Gilje; L'Haridon, Stephane; Stokke, Runar; Roalkvam, Irene; Steen, Ida Helene; Dahle, Håkon. |
| A bacterial strain, designated BAR1T, was isolated from a microbial mat growing on the surface of a barite chimney at the Loki’s Castle Vent Field, at a depth of 2216 m. Cells of strain BAR1T were rod-shaped, Gram-reaction-negative and grew on marine broth 2216 at 10–37 °C (optimum 27–35 °C), pH 5.5–8.0 (optimum pH 6.5–7.5) and 0.5–5.0 % NaCl (optimum 2 %). The DNA G+C content was 57.38 mol%. The membrane-associated major ubiquinone was Q-10, the fatty acid profile was dominated by C18 : 1ω7c (91 %), and the polar lipids detected were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid, one unidentified lipid and one unidentified phospholipid. Phylogenetic analyses based on 16S rRNA gene sequences showed that... |
| Tipo: Text |
Palavras-chave: Roseobacter; Alphaproteobacteria; Piezophilic; Isolate; Deep-sea; Hydrothermal vent. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00482/59323/62117.pdf |
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| Chang, C.; Cheng, S.; Dijkstra, H.H.. |
| Pectinoidea is a superfamily of marine bivalve mollusks. Type series of the two new Pectinoidea species, Parvamussium liaoi (Propeamussiidae) and Scaeochlamys squamea (Pectinidae), collected during deep-sea cruises off south and northeastern Taiwan in 2000 and 2001, respectively, were relocated from the Muséum national d'Histoire naturelle, Paris, France and the National Museum of Natural Sciences, Taichung, Taiwan (NMNS) to the Mollusca collection of National Museum of Marine Biology and Aquarium, Pingtung, Taiwan (NMMBM). A catalog denoted of the original NMNS and the new registered NMMBM codes, scientific names in Chinese, and color plates of the type series are provided. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Deep-sea; Bivalvia; Taiwan; Type series; 42.73. |
| Ano: 2011 |
URL: http://www.repository.naturalis.nl/record/408535 |
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| Tavares,Marcos; Melo,Gustavo Augusto S. de. |
| A new species of Trichopeltarion A. Milne-Edwards, 1880, is described from off coast of Brazil, namely Trichopeltarion pezzutoi n. sp. The new species is compared to its Atlantic congeners, Trichopeltarion nobile A. Milne-Edwards, 1880, and Trichopeltarion intesi (Crosnier, 1981). The record of T. nobile from Brazil should actually be attributed to T. pezzutoi n. sp. The differences between the genera Trichopeltarion and Peltarion Jacquinot, 1847 are discussed. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: West Atlantic; Brazil; Deep-sea; Trichopeltarion; Trachycarcinus; Peltarion. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492005001800001 |
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| Tavares,Marcos; Cleva,Régis. |
| A new family, Trichopeltariidae, is proposed to accommodate Sphaeropeltarion edentatum, new genus and species, and four additional genera traditionally placed in the family Atelecyclidae: Trichopeltarion A. Milne-Edwards, 1880 (type genus); Peltarion Hombron & Jacquinot, 1846; Podocatactes Ortmann, 1893; and Pteropeltarion Dell, 1972. Additionally, four new species of Trichopeltarion are described and illustrated. The new family exhibits characters of neither superfamilies of the Section Eubrachyura and is assigned to its own superfamily, Trichopeltarioidea nov. Keys to the genera of Trichopeltariidae fam. nov. and to all species in the family are presented (species of Trichopeltarion excepted). Six new combinations are proposed or confirmed. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crustacea; Brachyura; New superfamily; New family; New genus; New species; Deep-sea. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492010000900001 |
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| Martins,Luciana; Tavares,Marcos. |
| ABSTRACT Ypsilothuria bitentaculata bitentaculata (Ludwig, 1893), previously known from several localities in the Pacific Ocean, is recorded herein for the first time from the southwestern Atlantic Ocean based on eight specimens caught off the coast of southeastern Brazil, between 505-511 m deep. Several morphological details are added to the description of Y. b. bitentaculata, including photographs of specimens and calcareous ring plates, as well as scanning electron microscope images of the ossicles from the body wall, oral and anal siphons and introvert. Additionally, Y. b. bitentaculata is compared to its congeners. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sea cucumber; Dendrochirotida; Ypsilothuriidae; Brazil; Deep-sea; REVIZEE. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100312 |
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| Registros recuperados: 36 | |
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