Consulta: creatorFacets:"Le Duff, Michel"
Registros recuperados: 10
Data/hora: 01/06/2024 08:35:50

Regional and latitudinal patterns of soft-bottom macrobenthic invertebrates along French coasts: Results from the RESOMAR database
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Gallon, Regis K.; Lavesque, Nicolas; Grall, Jacques; Labrune, Celine; Gremare, Antoine; Bachelet, Guy; Blanchet, Hugues; Bonifacio, Paulo; Bouchet, Vincent M. P.; Dauvin, Jean-claude; Desroy, Nicolas; Gentil, Franck; Guerin, Laurent; Houbin, Celine; Jourde, Jerome; Laurand, Sandrine; Le Duff, Michel; Le Garrec, Vincent; De Montaudouin, Xavier; Olivier, Frederic; Orvain, Francis; Sauriau, Pierre-guy; Thiebaut, Eric; Gauthier, Olivier.
This study aims to describe the patterns of soft bottom macrozoobenthic richness along French coasts. It is based on a collaborative database developed by the “Réseau des Stations et Observatoires Marins” (RESOMAR). We investigated patterns of species richness in sublittoral soft bottom habitats (EUNIS level 3) at two different spatial scales: 1) seaboards: English Channel, Bay of Biscay and Mediterranean Sea and 2) 0.5° latitudinal and longitudinal grid. Total observed richness, rarefaction curves and three incidence-based richness estimators (Chao2, ICE and Jacknife1) were used to compare soft bottom habitats species richness in each seaboard. Overall, the Mediterranean Sea has the highest richness and despite higher sampling effort, the English Channel...
Tipo: Text
Palavras-chave: Zoobenthos; Species richness; Regional pattern; Latitudinal pattern; Soft-bottom; France.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00376/48769/49166.pdf

Small-scale effects of hydrodynamics on the structure of intertidal macroalgal communities: A novel approach
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Burel, Thomas; Schaal, Gauthier; Grall, Jacques; Le Duff, Michel; Chapalain, Georges; Schmitt, Blondie; Gemin, Maxence; Boucher, Olivier; Ar Gall, Erwan.
Wave height was used as a proxy to assess the effect of hydrodynamics on the development and structure of intertidal North-East Atlantic rocky macroalgal communities (Brittany). The characterization of hydrodynamics at small-scale (about 10 m) was performed through wave height in situ monitoring using pressure sensors. Both the diversity and the cover of the macroalgal communities were sampled in parallel. Wave heights exhibit large variations with values ranging from ca. 5 cm to 1.60 m. We show that wave height directly controls the cover of macroalgal canopies (Pearson's r between −0.62 and −0.39). In all communities, most of the fucoid covers regressed with increasing wave height values. By contrast, positive correlations were found at low shore levels...
Tipo: Text
Palavras-chave: Macroalgal communities; Intertidal zone; Rocky shores; Wave heights; Hydrodynamics; Mini-diver; Brittany.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00506/61769/65752.pdf

Biocénoses des fonds durs du médiolittoral. Sous-région marine Manche - Mer du Nord. Evaluation initiale DCSMM.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ar Gall, Erwan; Hily, Christian; Grall, Jacques; Le Duff, Michel; Redon, Christophe; Kerninon, Fanny.
Tipo: Text
Palavras-chave: Manche; Mer du Nord; Biocénoses; Fonds durs; Médiolittoral.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00327/43835/43409.pdf

Trophic connectivity between offshore upwelling and the inshore food web of Banc d’Arguin (Mauritania): New insights from isotopic analysis
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Carlier, Antoine; Chauvaud, Laurent; Van Der Geest, Matthijs; Le Loc'H, Francois; Le Duff, Michel; Vernet, Marc; Raffray, Jean; Diakhate, Djibril; Labrosse, Pierre; Wague, Abdoulaye; Le Goff, Clement; Gohin, Francis; Chapron, Bertrand; Clavier, Jacques.
Banc d’Arguin (BA), Mauritania, is a nationally protected shallow gulf &gt; 10,000 km2 between the Sahara desert and the upwelling system off the Mauritanian coast. In the southeast, BA consists of a 500 km2 tidal flat, the most important wintering site for shorebirds using the East Atlantic Flyway. The Mauritanian upwelling-driven phytoplankton production supports the most productive fisheries worldwide, but little is known about its trophic role in the functioning of the inshore BA food web. Using stable isotopes as trophic tracers to distinguish between upwelling-driven phytoplankton, open ocean phytoplankton, and benthic primary producers, we assessed the spatial extent to which the inshore BA food web is fuelled by upwelling-driven phytoplankton...
Tipo: Text
Palavras-chave: Banc d'Arguin; West Africa; Food web structure; Remote sensing; Stable isotope; Upwelling.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00269/37999/36078.pdf

Liste des espèces marines introduites dans les eaux bretonnes et des espèces introduites envahissantes des eaux périphériques
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Blanchard, Michel; Goulletquer, Philippe; Hamon, Dominique; Le Mao, Patrick; Nezan, Elizabeth; Gentil, Franck; Simon, Nathalie; Viard, Frédérique; Ar Gall, Erwan; Grall, Jacques; Hily, Christian; Le Duff, Michel; Stiger-pouvreau, Valérie; Acou, Anthony; Derrien-courtel, Sandrine; Feunteun, Eric; D'Hondt, Jean-loup; Canard, Alain; Ysnel, Frédéric; Perrin, Bertrand.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00026/13737/10865.pdf

Biocénoses des fonds durs du médiolittoral. Sous-région marine Golfe de Gascogne. Evaluation initiale DCSMM.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ar Gall, Erwan; Hily, Christian; Grall, Jacques; Le Duff, Michel; Redon, Christophe; Kerninon, Fanny.
Tipo: Text
Palavras-chave: Golfe de Gascogne; Biocénoses; Fonds durs; Médiolittoral.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00329/44017/43589.pdf

Nouveau signalement de l’algue rouge Centroceras clavulatum (Agardh) Montagne dans les eaux bretonnes
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Duff, Michel; Le Garrec, Vincent; Ar Gall, Erwan.
The presence of Centroceras clavulatum is reported for the first time in the Western Channel, off Bréhat island. We hypothesize and discuss that its presence is linked with the oyster farming activities.
Tipo: Text
Palavras-chave: Centroceras clavulatum; Nord Bretagne; Parcs à huîtres; Centroceras clavulatum; Northern Brittany; Oyster farming.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00439/55044/56477.pdf

Comparison of two methods for the ecological status assessment of benthic intertidal macroalgae within the Basque coast, for the European Water Framework Directive
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: De Casamajor, Marie-noelle; Ar Gall, Erwan; Le Duff, Michel; Borja, Angel.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00066/17726/15234.pdf

Biocénoses des fonds durs du médiolittoral. Sous-région marine Mers celtiques. Evaluation initiale DCSMM.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Ar Gall, Erwan; Hily, Christian; Grall, Jacques; Le Duff, Michel; Redon, Christophe; Kerninon, Fanny.
Tipo: Text
Palavras-chave: Mers celtiques; Biocénoses; Fonds durs; Médiolittoral.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00328/43938/43511.pdf

On the presence of the rissoid gastropod Alvania lamellata Dautzenberg, 1889 on the top of the azorean Condor seamount (206 m depth)
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Duff, Michel; Bongiorni, Lucia; Zeppilli, Daniela; Grall, Jacques.
This note reports the presence of the rissoid gastropod Alvania lamellata Dautzenberg, 1889 on the top of the Condor seamount (Azores) at 206 m depth. This allows reconsideration of the ecology of the species which lives in the deep circalittoral rather than in the bathyal zone.
Tipo: Text
Palavras-chave: Rissoidae; Alvania lamellata; Açores; Mont sous-marin; Étage; Rissoidae; Alvania lamellata; Azores; Seamount; Habitat.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00199/31051/29471.pdf