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	Provedor de dados ArchiMer (4) Autor Aldebert, C. (1) Ami, Dominique (1) Blain, S. (1) Bonnet, S. (1) Bowie, A. R. (1) Bucciarelli, E. (1) Chever, F. (1) Doglioli, A.m. (1) Koenig, G. (1) Martinez, Elodie (1) Messié, M. (1) Mostajir, Behzad (1) Moutin, T. (1) Petrenko, A. (1) Rochaix, Lise (1) Roques, Cecile (1) Sarthou, G. (1) Scotti, Marco (1) Trombetta, Thomas (1) Vidussi, Francesca (1) Mais... Palavra-chave Phytoplankton bloom (4) Algal bloom (1) Atlantic ocean (1) Bound iron (1) Carbon sequestration (1) Central california (1) Coastal water (1) Coastal waters (1) Conchyliculture (1) Correlation networks (1) Dissolved iron (1) Eau cotiere (1) Economic impact (1) Economie (1) Island mass effect (1) Lagrangian analysis (1) Microbial food web (1) Microorganism interactions (1) Mussel culture (1) Nitrogen fixation (1) Mais... Tipo do documento Text (4) Ano 2020 (2) 2010 (1) 2003 (1) País France (4) Idioma Inglês (3) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última An iron budget during the natural iron fertilisation experiment KEOPS (Kerguelen Islands, Southern Ocean) ArchiMer Chever, F.; Sarthou, G.; Bucciarelli, E.; Blain, S.; Bowie, A. R.. Total dissolvable iron (TDFe) was measured in the water column above and in the surrounding of the Kerguelen Plateau (Indian sector of the Southern Ocean) during the KErguelen Ocean Plateau compared Study (KEOPS) cruise. TDFe concentrations ranged from 0.90 to 65.6 nmol L-1 above the plateau and from 0.34 to 2.23 nmol L-1 offshore of the plateau. Station C1 located south of the plateau, near Heard Island, exhibited very high values (329-770 nmol L-1). Apparent particulate iron (Fe-app), calculated as the difference between the TDFe and the dissolved iron measured on board (DFe) represented 95 +/- 5% of the TDFe above the plateau, suggesting that particles and refractory colloids largely dominated the iron pool. This paper presents a budget of DFe and... Tipo: Text Palavras-chave: Phytoplankton bloom; Dissolved iron; Atlantic ocean; Central california; Carbon sequestration; Coastal waters; Surface waters; Plateau region; Organic carbon; Bound iron. Ano: 2010 URL: https://archimer.ifremer.fr/doc/00205/31605/30036.pdf Évaluation des conséquences économiques de la gestion des risques sanitaires liés aux proliférations phytoplanctoniques marines ArchiMer Ami, Dominique; Rochaix, Lise. General introduction: The setting up of monitoring networks for coastal water quality of the REPHY type by IFREMER was taken from a public health standpoint and fits broadly in with a principle of precaution regarding eating shellfish meant for human consumption. The benefits to be compared with the costs of managing the REPHY network (estimated at FF7.4 million in 1995) are therefore first and foremost the reduction of the risk of poisoning and can be captured by subtracting the sanitation costs that are associated with them. Evaluating these direct benefits is, however, no easy task. The network leads in fact to the reduction of occurrences of poisoning such that the epidemiological data on which such a calculation should be founded diminishes over time.... Tipo: Text Palavras-chave: Algal bloom; Phytoplankton bloom; Mussel culture; Coastal water; Pollution monitoring; Economic impact; Phytoplancton; Conchyliculture; Eau cotiere; Surveillance pollution; Economie. Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/rapport-1741.pdf Marine Microbial Food Web Networks During Phytoplankton Bloom and Non-bloom Periods: Warming Favors Smaller Organism Interactions and Intensifies Trophic Cascade ArchiMer Trombetta, Thomas; Vidussi, Francesca; Roques, Cecile; Scotti, Marco; Mostajir, Behzad. Microbial food web organisms are at the base of the functioning of pelagic ecosystems and support the whole marine food web. They are very reactive to environmental changes and their interactions are modified in response to different productive periods such as phytoplankton bloom and non-bloom as well as contrasted climatic years. To study ecological associations, identify potential interactions between microorganisms and study the structure of the microbial food web in coastal waters, a weekly monitoring was carried out in the Thau Lagoon on the French Mediterranean coast. The monitoring lasted from winter to late spring during two contrasting climatic years, a typical Mediterranean (2015) and a year with an extreme warm winter (2016). Correlation... Tipo: Text Palavras-chave: Microorganism interactions; Correlation networks; Phytoplankton bloom; Warming; Microbial food web; Shallow coastal zone. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00659/77102/78437.pdf The Delayed Island Mass Effect: how islands can remotely trigger blooms in the oligotrophic ocean ArchiMer Messié, M.; Petrenko, A.; Doglioli, A.m.; Aldebert, C.; Martinez, Elodie; Koenig, G.; Bonnet, S.; Moutin, T.. In oligotrophic gyres of the tropical ocean, islands can enhance phytoplankton biomass and create hotspots of productivity and biodiversity. This “Island Mass Effect” (IME) is typically identified by increased chlorophyll concentrations next to an island. Here we use a simple plankton model in a Lagrangian framework to represent an unexplained open ocean bloom, demonstrating how islands could have triggered it remotely. This new type of IME, termed “delayed IME”, occurs when nitrate is limiting, N:P ratios are low, and excess phosphate and iron remain in water masses after an initial bloom associated to a “classical” IME. Nitrogen fixers then slowly utilize leftover phosphate and iron while water masses get advected away, resulting in a bloom decoupled in... Tipo: Text Palavras-chave: Island mass effect; Lagrangian analysis; Nitrogen fixation; Nutrient supply; Oligotrophic ocean; Phytoplankton bloom. Ano: 2020 URL: https://archimer.ifremer.fr/doc/00600/71162/69489.pdf Registros recuperados: 4 Primeira ... 1 ... Última

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