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Registros recuperados: 20 | |
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Brunet, Maéva; De Bettignies, Florian; Le Duff, Nolwen; Tanguy, Gwenn; Davoult, Dominique; Leblanc, Catherine; Gobet, Angelique; Thomas, François. |
Kelps are dominant primary producers in temperate coastal ecosystems. Large amounts of kelp biomass can be exported to the seafloor during the algal growth cycle or following storms, creating new ecological niches for the associated microbiota. Here, we investigated the bacterial community associated with the kelp Laminaria hyperborea during its accumulation and degradation on the seafloor. Kelp tissue, seawater and sediment were sampled during a six‐month in situ experiment simulating kelp detritus accumulation. Evaluation of the epiphytic bacterial community abundance, structure, taxonomic composition and predicted functional profiles evidenced a biphasic succession. Initially dominant genera (Hellea, Litorimonas, Granulosicoccus) showed a rapid and... |
Tipo: Text |
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Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00666/77808/79983.pdf |
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Davoult, Dominique; Richard, Alain. |
Le site des Caps est une zone littorale bien particulière, bordure française du goulet du Pas-de-Calais, à la fois rétrécissement géographique important entre la France et l'Angleterre, et limite entre la Manche Orientale et le sud de la Mer du Nord. Une zone d'extraction de granulats marins a été exploitée entre 1971 et 1980 au large de ce site. Cette exploitation a été arrêtée en 1982 par arrêté préfectoral pour des raisons d'atteinte à l'environnement et d'entrave à la pêche. La présente étude a pour but de décrire les peuplements au large du site des Caps, englobant le quadrilatère d'exploitation, de faire ressortir leurs caractéristiques. et d'essayer d'apprécier l'impact dû à l'extraction. Deux problèmes majeurs sont soulevés : d'une part, aucune... |
Tipo: Text |
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Ano: 1986 |
URL: http://archimer.ifremer.fr/doc/00036/14722/12027.pdf |
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Migne, A; Davoult, Dominique; Gattuso, Jp. |
The production of calcium carbonate by a dense Ophiothrix fragilis population was calculated in order to investigate its role in the carbon budget of a temperate coastal ecosystem (Dover Strait, eastern English Channel). Production, calculated using monthly data of population density, demographic structure and a size/CaCO3 conversion, was 682 g CaCO3 m(-2) yr(-1). Assuming that the molar ratio of CO2 released to CaCO3 precipitated varied with temperature between 0.66 and 0.73, this production would result in the release of 4.8 mol CO2 m(-2) yr(-1). This calculation reinforces the suggestion that this coastal system is a source of CO2 to the atmosphere. |
Tipo: Text |
Palavras-chave: CO2 flux; CaCO3 production; Ophiuroid; Coastal ecosystem; Temperate sea. |
Ano: 1998 |
URL: https://archimer.ifremer.fr/doc/00248/35947/34474.pdf |
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Qui-minet, Zujaila Nohemy; Coudret, Jérôme; Davoult, Dominique; Grall, Jacques; Mendez‐sandin, Miguel; Cariou, Thierry; Martin, Sophie. |
Made up of calcareous coralline algae, maerl beds play a major role as ecosystem engineers in coastal areas throughout the world. They undergo strong anthropogenic pressures, which may threaten their survival. The aim of this study was to gain insight into the future of maerl beds in the context of global and local changes. We examined the effects of rising temperatures (+3°C) and ocean acidification (−0.3 pH units) according to temperature and pH projections (i.e., the RCP 8.5 scenario), and nutrient (N and P) availability on three temperate maerl species (Lithothamnion corallioides, Phymatolithon calcareum, and Lithophyllum incrustans) in the laboratory in winter and summer conditions. Physiological rates of primary production, respiration, and... |
Tipo: Text |
Palavras-chave: Calcification; Maerl; Nitrate; Ocean acidification; Ocean warming; Phosphate; Photosynthesis; Respiration. |
Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00595/70722/68955.pdf |
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Leclerc, Jean-charles; Riera, Pascal; Laurans, Martial; Leroux, Cedric; Leveque, Laurent; Davoult, Dominique. |
Worldwide kelp forests have been the focus of several studies concerning ecosystems dysfunction in the past decades. Multifactorial kelp threats have been described and include deforestation due to human impact, cascading effects and climate change. Here, we compared community and trophic structure in two contrasting kelp forests off the coasts of Brittany. One has been harvested five years before sampling and shelters abundant omnivorous predators, almost absent from the other, which has been treated as preserved from kelp harvest. δ15N analyses conducted on the overall communities were linked to the tropho-functional structure of different strata featuring these forests (stipe and holdfast of canopy kelp and rock). Our results yielded site-to-site... |
Tipo: Text |
Palavras-chave: Laminaria hyperborea; Community cascade; Stable isotopes; Biomass; Suspension-feeders; Omnivorous predators. |
Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00226/33747/32161.pdf |
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Spilmont, Nicolas; Denis, Lucie; Artigas, Luis Felipe; Caloin, Frederic; Courcot, Lucie; Creach, Anne; Desroy, Nicolas; Gevaert, Francois; Hacquebart, Pascal; Hubas, Cedric; Janquin, Marie-andree; Lemoine, Yves; Luczak, Christophe; Migne, Aline; Rauch, Mathieu; Davoult, Dominique. |
From 1999 to 2005, studies carried out in the frame of regional and national French programs aimed to determine whether the Phaeocystis globosa bloom affected the intertidal benthic communities of the French coast of the eastern English Channel in terms of composition and/or functioning. Study sites were chosen to cover most of the typical shore types encountered on this coast (a rocky shore, an exposed sandy beach and a small estuary). Both the presence of active Phaeocystis cells and their degradation product (foam) did have a significant impact on the studied shores. The primary production and growth rates of the kelp Saccharina latissima decreased during the bloom because of a shortage of fight and nutrient for the macroalgae. On sandy sediments, the... |
Tipo: Text |
Palavras-chave: Macrozoobenthos; Bacteria; Saccharina latissima; Benthic fluxes; Phaeocystis globosa; Intertidal. |
Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6142.pdf |
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Thillaye Du Boullay, Herve; Toularastel, France; Piriou, Jean-yves; Coppin, Franck; Richard, I.; Davoult, Dominique; Roger, Franck. |
The ecological survey n° 17 covering PALUEL nuclear power station took place between March and September 1994. The following areas were monitored : Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing. Paluel power station has now been operationnel for eleven years |
Tipo: Text |
Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance; Benthos; Fishing; Pelagos; Nuclear power station; Survey. |
Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00082/19360/16954.pdf |
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Thillaye Du Boullay, Herve; Toularastel, France; Maheux, Frank; Coppin, Franck; Richard, Ingrid; Davoult, Dominique; Roger, Franck. |
The ecological survey n° 18 covering PALUEL nuclear power station took place between March and September 1995. The following areas were monitored Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing. Paluel power station has now been operationnel for eleven years. |
Tipo: Text |
Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance; Benthos; Fishing; Pelagos; Nuclear power station; Survey. |
Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00081/19261/16856.pdf |
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Thillaye Du Boullay, Herve; Toularastel, France; Maheux, Frank; Coppin, Franck; Richard, Ingrid; Davoult, Dominique; Le Claire, Jacques. |
The ecological survey n°19 covering PALUEL nuclear power station took place between March and September 1996. The following areas were monitored : Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoo~enthos, and fishing. Paluel power station bas now been operationnel for thirteen years. |
Tipo: Text |
Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance; Benthos; Fishing; Pelagos; Nuclear power station; Survey. |
Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00082/19326/16920.pdf |
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Thillaye Du Boullay, Herve; Toularastel, France; Maheux, Frank; Coppin, Franck; Richard, Ingrid; Davoult, Dominique; Le Claire, Jacques. |
The ecological survey n°20 covering PALUEL nuclear power station took place between March and September 1997. The following areas were monitored : Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing. Paluel power station has now been operationnel for forteen years |
Tipo: Text |
Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance. |
Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00081/19262/16857.pdf |
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Thillaye Du Boullay, Herve; Maheux, Frank; Rumebe, Myriam; D'Elbee, Jean; Davoult, Dominique; Richard, Ingrid; Leclaire, Jacques; Delpech, Jean-paul; Raulin, Pascal. |
The ecological survey n°22 covering PALUEL nuclear power station took place between March and September 1999. The following areas were monitored : pélagique, benthique and halieutique. Paluel power station bas now been operationnel for |
Tipo: Text |
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Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00083/19392/16985.pdf |
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Thillaye Du Boullay, Herve; Maheux, Frank; Rumebe, Myriam; D'Elbee, Jean; Davoult, Dominique; Richard, Ingrid; Dorobisz, Laurence; Coppin, Franck; Raulin, Pascal. |
The ecological survey n°23 covering PALUEL nuclear power station took place between March and September 2000. The following areas were monitored : pélagique, benthique and halieutique. Paluel power station has now been operationnel for |
Tipo: Text |
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Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00083/19389/16983.pdf |
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Thillaye Du Boullay, Herve; Davoult, Dominique; Delpech, Jean-paul; Dorobisz, Laurence; Lampert, Luis; Maheux, Frank; Richard, Ingrid; Rumebe, Myriam. |
Monitoring n°25 of the Paluel nuclear power plant takes into account studies conducted between March and September 2002. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for nineteen years. |
Tipo: Text |
Palavras-chave: Pelagos Halieutique Benthos Surveillance Centrale nucléaire Paluel Pelagos Fisheries Benthos Nuclear power plant Paluel; Monitoring. |
Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/rapport-1025.pdf |
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Davoult, Dominique; Delpech, Jean-paul; Lampert, Luis; Loquet, Nicolas; Maheux, Frank; Rumebe, Myriam. |
Monitoring n°26 of the Paluel nuclear power plant takes into account studies conducted between March and September 2003. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for twenty years. |
Tipo: Text |
Palavras-chave: Pelagos; Halieutique; Benthos; Surveillance; Centrale nucléaire Paluel; Pelagos; Fisheries; Benthos; Nuclear power plant; Monitoring; Paluel. |
Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/rapport-1029.pdf |
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Lampert, Luis; Davoult, Dominique; Delpech, Jean-paul; Loquet, Nicolas; Maheux, Frank; Dagault, Françoise. |
Monitoring n°27 of the Paluel nuclear power plant takes into account studies conducted between March and September 2004. Impacts on hydrology, Microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for twenty years. |
Tipo: Text |
Palavras-chave: Pelagos Halieutique Benthos Surveillance Centrale nucléaire Paluel Pelagos Fisheries Benthos Nuclear power plant Paluel; Monitoring. |
Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/rapport-1026.pdf |
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Thillaye Du Boullay, Herve; Crassous, Marie-pierre; Davoult, Dominique; Delpech, Jean-paul; Dorobisz, Laurence; Maheux, Frank; Monbet, Philippe; Richard, I.; D'Elbee, Jean. |
Monitoring no24 of the Paluel nuclear power plant takes into account studies conducted between March and September 2001. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fis he ries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for eighteen years. |
Tipo: Text |
Palavras-chave: Centrale nucléaire Paluel Surveillance Halieutique Pelagos Benthos Paluel Monitoring Nuclear power plant; Benthos Fisheries Pelagos. |
Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00083/19390/16984.pdf |
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Lampert, Luis; Abernot, Chantal; Antajan, Elvire; Davoult, Dominique; Delpech, Jean-paul; Meirland, Antoine; Migne, Aline; Nogues, Loic. |
Monitoring n°30 of the Paluel nuclear power plant takes into account studies conducted between March and September 2007. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for twenty four years. |
Tipo: Text |
Palavras-chave: Pelagos; Halieutique; Benthos; Surveillance; Centrale nucléaire Paluel; Pelagos; Fisheries; Benthos; Nuclear power plant; Monitoring; Paluel. |
Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/rapport-5379.pdf |
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Monbet, Philippe; Antajan, Elvire; Claquin, Pascal; Davoult, Dominique; Delpech, Jean-paul; Le Gac-abernot, Chantal; Meirland, Antoine; Migne, Aline; Rolet, Céline; Rostiaux, Emilie; Talleux, Jean-denis. |
The monitoring report (n°32) of the nuclear power plant located in Paluel takes into account scientific studies carried out between March and September 2009. Environmental effects and potential impacts on the aquatic ecosystem are reported through different chapters : hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos. This power plant has been in operation for twenty six years. |
Tipo: Text |
Palavras-chave: Centrale nucléaire Paluel Surveillance; Benthos Halieutique Pelagos Paluel Monitoring Nuclear power plant Benthos Fisheries Water quality. |
Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00018/12919/9892.pdf |
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Registros recuperados: 20 | |
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