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Registros recuperados: 38 | |
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Merillet, Laurene; Robert, Marianne; Salaun, Michele; Schuck, Lucie; Mouchet, Maud; Kopp, Dorothee. |
Based on towed underwater videos, diversity patterns and their main environmental and anthropogenic drivers were assessed in the “Grande Vasière” (northeast Bay of Biscay), one of the main French fishing grounds. The density of bentho-demersal megafauna was recorded along 152 transects in this area in 2014. The highest number of taxa and densities were observed on the external margin of the Grande Vasière, in deep areas with low fishing intensity. The highest levels of taxa evenness were located on the central and coastal parts that are shallower and exposed to medium to high trawling intensity. Multivariate analysis identified four different communities driven by fishing intensity, depth, sediment type and bottom current speed. We distinguished three... |
Tipo: Text |
Palavras-chave: Biodiversity patterns; Indicator species; Fishing and environmental variables. |
Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00441/55261/56796.pdf |
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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 |
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Tareau, M.-a.; Bonnefond, A.; Palisse, M.; Odonne, G.. |
Background French Guiana is characterized by a very multicultural population, made up of formerly settled groups (Amerindians, Maroons, Creoles) and more recent migrants (mostly from Latin America and the Caribbean). It is the ideal place to try to understand the influence of intercultural exchanges on the composition of medicinal floras and the evolution of phytotherapies under the effect of cross-culturalism. Methods A combination of qualitative and quantitative methods was used. Semi-directive interviews were conducted in 12 localities of French Guiana’s coast between January 2016 and June 2017, and the responses to all closed questions collected during the survey were computerized in an Excel spreadsheet to facilitate quantitative processing. Herbarium... |
Tipo: Text |
Palavras-chave: Cultural keystone species; Indicator species; Exchange networks; Migrations. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76384/77395.pdf |
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Paredes, P.. |
Durante mayo a octubre del 2007 abarcando la época seca y lluviosa, se realizaron análisis para la determinación de hidrocarburos aromáticos totales existentes en agua y sedimentos dentro del estuario del Río Chone mediante la técnica de CARIPOL; los análisis fueron realizados en el Instituto Oceanográfico de la Armada. Dentro del estuario se tomaron 4 estaciones cada una de ellas con un punto de referencia: Estación 1:Isla Corazón, Estación 2: Mangle 2000, Estación 3: Capitanía de Puerto, Estación 4: Repsol. Las muestras fueron tomadas una vez al mes; tomando en cuenta la radiación solar y mareas como variables para el estudio. La concentración de hidrocarburos aromáticos totales disueltos y dispersos en el agua fue entre 0.05-0.329 ug/L, el valor más... |
Tipo: Journal Contribution |
Palavras-chave: Aromatic hydrocarbons; Sediments; Chemical analysis; Indicator species; Pollution legislation. |
Ano: 2010 |
URL: http://hdl.handle.net/1834/4217 |
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Registros recuperados: 38 | |
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