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	Provedor de dados ArchiMer (2) Autor Barbosa, Romina (1) Blénet, Aurélien (1) Davies, A. J. (1) Edinger, Evan (1) Ghaleb, Bassam (1) Hillaire-marcel, Claude (1) Hélie, Jean-françois (1) Maccali, Jenny (1) Ménabréaz, Lucie (1) Preda, Michel (1) Sumida, P. Y. G. (1) Mais... Palavra-chave Deep-sea corals (2) Aragonite corals (1) Environmental niche (1) Habitat suitability modelling (1) Labrador Sea (1) Lophelia pertusa (1) Octocorallia (1) Radiocarbon (1) Scleractinia (1) Southwestern Atlantic (1) U-series dating (1) Mais... Tipo do documento Text (2) Ano 2020 (2) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Late Quaternary sporadic development of Desmophyllum dianthus deep-coral populations in the southern Labrador Sea with specific attention to their 14C- and 230Th-dating ArchiMer Maccali, Jenny; Hillaire-marcel, Claude; Ghaleb, Bassam; Ménabréaz, Lucie; Blénet, Aurélien; Edinger, Evan; Hélie, Jean-françois; Preda, Michel. About 70 fossil and live-collected specimens of Desmophyllum dianthus were collected from steep rocky surfaces and time-averaged assemblages at their base (“coral graveyards”) in the southern Labrador Sea at depths ranging from ~1700 m (Orphan Knoll) to ~2200 m (Flemish Cap). Aside from stable isotope and mineralogical analysis, U-series and 14C age determinations were performed on the samples. Fossil corals from the coral graveyards display two principal age clusters corresponding respectively to the Holocene and Marine Isotope Stage (MIS) 5c intervals. Three samples lay outside these clusters, at ~13.5 ka (Bølling-Allerød), ~ 64 ka (MIS 3) and at ~181 ka (MIS 7a). The clusters are thought to record intervals with both i) high food availability, either... Tipo: Text Palavras-chave: Deep-sea corals; Aragonite corals; Labrador Sea; Radiocarbon; U-series dating. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00623/73496/72790.pdf Habitat suitability and environmental niche comparison of cold-water coral species along the Brazilian continental margin ArchiMer Barbosa, Romina; Davies, A. J.; Sumida, P. Y. G.. In face of increasing anthropogenic disturbance in the deep sea, it is a priority to better understand the regional distribution of cold-water corals (CWC). These organisms create some of the most species-rich habitats in the deep sea and, for this reason, they must be properly protected and managed. In this study, we aimed to identify suitable habitat for multiple CWC taxa off the Brazilian continental margin and compare their environmental niches. Habitat suitability models were developed using the Maxent approach, which allowed for the prediction of species distribution and for the identification of potential 'hot spot' areas that may be important for biodiversity conservation. Ecological niches were determined by a PCA-env approach, and niche... Tipo: Text Palavras-chave: Deep-sea corals; Habitat suitability modelling; Lophelia pertusa; Environmental niche; Southwestern Atlantic; Octocorallia; Scleractinia. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00607/71927/76567.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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