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| Zeppilli, Daniela; Bellec, Laure; Cambon-bonavita, Marie-anne; Decraemer, Wilfrida; Fontaneto, Diego; Fuchs, Sandra; Gayet, Nicolas; Mandon, Perrine; Michel, Loic; Portail, Marie; Smol, Nic; Sørensen, Martin V.; Vanreusel, Ann; Sarrazin, Jozee. |
| Background Nematodes are an important component of deep-sea hydrothermal vent communities, but only few nematode species are able to cope to the harsh conditions of the most active vent sites. The genus Oncholaimus is known to tolerate extreme geothermal conditions and high sulphide concentrations in shallow water hydrothermal vents, but it was only occasionally reported in deep-sea vents. In this study, we performed morphological, genetic and ecological investigations (including feeding strategies) on an abundant species of Oncholaimus recently discovered at Lucky strike vent field on the Mid-Atlantic Ridge at 1700 m water depth. Results We described this species as Oncholaimus dyvae sp. nov.. This new species differs from all other members of the genus... |
| Tipo: Text |
Palavras-chave: Oncholaimus dyvae sp. nov.; Hydrothermal vents; Deep sea; Carbon and nitrogen isotopic ratios. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00508/61985/66097.pdf |
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| Zeppilli, Daniela; Vanreusel, Ann; Pradillon, Florence; Fuchs, Sandra; Mandon, Perrine; James, Tristan; Sarrazin, Jozee. |
| Despite the fragmented nature of hydrothermal vent (HV) fields, nascent vent sites are rapidly colonized by a pool of regional species. While succession of large animals at vents is relatively well established, we lack information on the associated meiofauna, in particular, on nematodes. The aim of the present study is to investigate the process of colonisation after 9 months of organic (wood and bone) and inorganic (slate) substrata by nematode assemblages deployed at the Eiffel Tower hydrothermal edifice on the Lucky Strike vent field on the Mid-Atlantic Ridge (MAR), at varying distances from visible hydrothermal activity. Abundance, biomass and diversity of colonising nematodes were compared with the results from an earlier similar two-year experiment.... |
| Tipo: Text |
Palavras-chave: Nematodes; Colonization substrata; Wood; Bone; Slate; Mid-Atlantic Ridge; Hydrothermal vents. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00278/38939/37520.pdf |
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