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| Registros recuperados: 28 | |
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| Blanchet, Aline; Dubois, Stanislas; Hily, Christian; Rochette, Sebastien; Le Goaster, Edouard; Guillou, Monique. |
| Mixed beds of Ophiocomina nigra and Ophiothrix fragilis (Echinodermata, Ophiuroidea) are usually predominated by O. fragilis and are reported to be stable over time. The Bay of Brest (Brittany, France) is a highly productive ecosystem where both species co-occur in the main central part. Using a geostatistical approach, we tested for changes in O. nigra and O. fragilis density and total biomass patterns between 1987 and 2011. Our results highlighted an increase in O. nigra population size and the induction of a spatial shift of the co-occurring O. fragilis. O. nigra increased similar to 5 times in density and covered almost all the study area, while its density-dependent biomass increased similar to 3 times (22 t km(-2), ash-free dry mass) between 1987 and... |
| Tipo: Text |
Palavras-chave: Echinoderm; Ophiocomina nigra; Ophiothrix fragilis; Food supply; Kriging method; Suspension-feeder. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00090/20136/17782.pdf |
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| Becheler, Ronan; Diekmann, O.; Hily, Christian; Moalic, Yann; Arnaud-haond, S.. |
| Seagrasses structure some of the world's key coastal ecosystems presently in decline due to human activities and global change. The ability to cope with environmental changes and the possibilities for shifts in distribution range depend largely on their evolvability and dispersal potential. As large-scale data usually show strong genetic structure for seagrasses, finer-grained work is needed to understand the local processes of dispersal, recruitment and colonization that could explain the apparent lack of exchange across large distances. We aimed to assess the fine-grained genetic structure of one of the most important and widely distributed seagrasses, Zostera marina, from seven meadows in Brittany, France. Both classic population genetics and network... |
| Tipo: Text |
Palavras-chave: Clonality; Dispersal; Ecotype; Network analysis; Population; Zostera marina. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00006/11690/8499.pdf |
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| Oger-jeanneret, Helene; Trut, Gilles; Ganthy, Florian; Sauriau, Pierre-guy; Budzinski, Hélène; Gonzalez, Patrice; Gamain, Perrine; Maury-brachet, Régine; Feurtet-mazel, Agnès; Auby, Isabelle; Dalloyau, Sébastien; Rollet, Claire; De Casamajor, Marie-noelle; Sanchez, Florence; Rigouin, Loic; Fortune, Mireille; Lejolivet, Aurore; Thevand, Adeline; Grall, Jacques; Hily, Christian; Lamouroux, Mélina; Fera, Philippe. |
| Tipo: Text |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00310/42085/41387.pdf |
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| Registros recuperados: 28 | |
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