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Effects of experimental warming on small phytoplankton, bacteria and viruses in autumn in the Mediterranean coastal Thau Lagoon ArchiMer
Courboulès, Justine; Vidussi, Francesca; Soulié, Tanguy; Mas, Sébastien; Pecqueur, David; Mostajir, Behzad.
To investigate the responses of a natural microbial plankton community of coastal Mediterranean waters to warming, which are still poorly known, an in situ mesocosm experiment was carried out in Thau Lagoon during autumn 2018. Several microorganisms, including virio-, bacterio-, and phytoplankton < 10 µm in size, were monitored daily and analysed using flow cytometry for 19 consecutive days in six mesocosms. Three mesocosms (control) had the same natural water temperature as the lagoon, and the other three were warmed by + 3 °C in relation to the control temperature. The cytometric analyses revealed an unexpected community dominated by picophytoplanktonic cells, including Prochlorococcus-like and Picochlorum-like cells, which had not previously been...
Tipo: Text Palavras-chave: Pico- and nanophytoplankton; Bacterioplankton; Virus; Warming; In situ mesocosm; Thau lagoon.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00688/79979/82933.pdf
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In modelling effects of global warming, invalid assumptions lead to unrealistic projections ArchiMer
Lefevre, Sjannie; Mckenzie, David J.; Nilsson, Goeran E..
Tipo: Text Palavras-chave: Climate change; Fish; Growth; Metabolism; Modelling; Oxygen uptake; Scaling; Warming.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00426/53762/54697.pdf
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Les observations de poissons tropicaux et le réchauffement des eaux dans l’Atlantique européen ArchiMer
Quero, Jean-claude; Du Buit, Marie-henriette; Vayne, Jean-jacques.
A recapitulation of the records of tropical fishes from European Atlantic waters shows that 67.6 % were fishes caught from the upper slope, between approximately 200 and 600 m; 19.8 % were fishes caught from the continental shelf; and 13.5 % were specimens caught from the middle slope, between 700 and 1 300 m. Since 1963, the upper slope species have made regular northward range extensions off of south Portugal to north-western Ireland (about 55 degrees 30' N), more and less rapidly, about 30 years for Cyttopsis roseus and only 6 years for Sphoeroides pachygaster. The continental shelf species, observed from 1969 but mostly from 1981, have a northward range to south-eastern Ireland (about 52 degrees N), but 65.2 % of them have been caught off the south of...
Tipo: Text Palavras-chave: Biodiversité; Poisson tropical; Réchauffement; Atlantique européen; Biodiversity; Tropical fishes; Warming; European Atlantic.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00254/36543/35085.pdf
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Les observations de poissons tropicaux et le réchauffement des eaux dans l'Atlantique européen ArchiMer
Quero, Jean-claude; Dubuit, Marie-henriette; Vayne, Jean-jacques.
A recapitulation of the records of tropical fishes from European Atlantic waters shows that 67.6 % were fishes caught from the upper slope, between approximately 200 and 600 m; 19.8 % were fishes caught from the continental shelf; and 13.5 % were specimens caught from the middle slope, between 700 and 1 300 m. Since 1963, the upper slope species have made regular northward range extensions off of south Portugal to north-western Ireland (about 55 degrees 30' N), more and less rapidly, about 30 years for Cyttopsis roseus and only 6 years for Sphoeroides pachygaster. The continental shelf species, observed from 1969 but mostly from 1981, have a northward range to south-eastern Ireland (about 52 degrees N), but 65.2 % of them have been caught off the south of...
Tipo: Text Palavras-chave: European Atlantic; Warming; Tropical fishes; Biodiversity.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/1998/publication-853.pdf
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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
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Observations ichtyologiques effectuées en 2003 ArchiMer
Quero, Jean-claude; Bellail, Robert; Spitz, J.
During 2003, one flying gurnard Dactylopterus volitans is recorded in southern Brittany. In 1995, we note the northward expansion to Brittany of Diplodus sargus in relation to the warming of water. The authors give some data on the diet of Liza aurata, Chelon labrosus and Torpedo nobiliana. NOT CONTROLLED OCR
Tipo: Text Palavras-chave: Stomach contents; Torpedo nobiliana; Chelon labrosus; Liza aurata; Northward expansion; Warming; Diplodus sargus; 1995; Southern Brittany; Dactylopterus volitans; Contenu stomacaux; Torpedo nobiliana; Chelon labrosus; Liza aurata; Progression vers le nord; Réchauffement des eaux; Diplodus sargus; 1995; Sud Bretagne; Dactylopterus volitans.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-3656.pdf
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Oligotrophication and Metabolic Slowing-Down of a NW Mediterranean Coastal Ecosystem ArchiMer
Agusti, Susana; Martinez-ayala, Juan; Regaudie-de-gioux, Aurore; Duarte, Carlos M..
Increased oligotrophication is expected for oligotrophic areas as a consequence of ocean warming, which reduces diffusive vertical nutrient supply due to strengthened stratification. Evidence of ocean oligotrophication has been, thus far, reported for the open ocean. Here we reported oligotrophication and associated changes in plankton community metabolism with warming in a pristine, oligotrophic Mediterranean coastal area (Cap Salines, Mallorca Island, Spain) during a 10 years time series. As a temperate area, there were seasonal patterns associated to changes in the broad temperature range (12.0.28.4.C), with a primary phytoplankton bloom in late winter and a secondary one in the fall. Community respiration (R) rates peaked during summers and showed...
Tipo: Text Palavras-chave: Oligotrophiocation; Mediterranean sea; Respiration; Net community production; Nutrients; Gross primary production; Warming; Chlorophyll.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00419/53091/54048.pdf
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On the Future of Argo: A Global, Full-Depth, Multi-Disciplinary Array ArchiMer
Roemmich, Dean; Alford, Matthew H.; Claustre, Hervé; Johnson, Kenneth; King, Brian; Moum, James; Oke, Peter; Owens, W. Brechner; Pouliquen, Sylvie; Purkey, Sarah; Scanderbeg, Megan; Suga, Toshio; Wijffels, Susan; Zilberman, Nathalie; Bakker, Dorothee; Baringer, Molly; Belbeoch, Mathieu; Bittig, Henry C.; Boss, Emmanuel; Calil, Paulo; Carse, Fiona; Carval, Thierry; Chai, Fei; Conchubhair, Diarmuid Ó.; D’ortenzio, Fabrizio; Dall’olmo, Giorgio; Desbruyeres, Damien; Fennel, Katja; Fer, Ilker; Ferrari, Raffaele; Forget, Gael; Freeland, Howard; Fujiki, Tetsuichi; Gehlen, Marion; Greenan, Blair; Hallberg, Robert; Hibiya, Toshiyuki; Hosoda, Shigeki; Jayne, Steven; Jochum, Markus; Johnson, Gregory C.; Kang, Kiryong; Kolodziejczyk, Nicolas; Körtzinger, Arne; Traon, Pierre-yves Le; Lenn, Yueng-djern; Maze, Guillaume; Mork, Kjell Arne; Morris, Tamaryn; Nagai, Takeyoshi; Nash, Jonathan; Garabato, Alberto Naveira; Olsen, Are; Pattabhi, Rama Rao; Prakash, Satya; Riser, Stephen; Schmechtig, Catherine; Schmid, Claudia; Shroyer, Emily; Sterl, Andreas; Sutton, Philip; Talley, Lynne; Tanhua, Toste; Thierry, Virginie; Thomalla, Sandy; Toole, John; Troisi, Ariel; Trull, Thomas W.; Turton, Jon; Velez-belchi, Pedro Joaquin; Walczowski, Waldemar; Wang, Haili; Wanninkhof, Rik; Waterhouse, Amy F.; Waterman, Stephanie; Watson, Andrew; Wilson, Cara; Wong, Annie P. S.; Xu, Jianping; Yasuda, Ichiro.
The Argo Program has been implemented and sustained for almost two decades, as a global array of about 4000 profiling floats. Argo provides continuous observations of ocean temperature and salinity versus pressure, from the sea surface to 2000 dbar. The successful installation of the Argo array and its innovative data management system arose opportunistically from the combination of great scientific need and technological innovation. Through the data system, Argo provides fundamental physical observations with broad societally-valuable applications, built on the cost-efficient and robust technologies of autonomous profiling floats. Following recent advances in platform and sensor technologies, even greater opportunity exists now than 20 years ago to (i)...
Tipo: Text Palavras-chave: Argo; Floats; Global; Ocean; Warming; Circulation; Temperature; Salinity.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00509/62043/66192.pdf
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Soil solarization for the control of tomato and eggplant Verticillium wilt and its effect on weed and micro-arthropod communities. Repositório Alice
GHINI, R.; BETTIOL, W.; SPADOTTO, C. A.; MORAES, G. J. de; PARAIBA, L. C.; MINEIRO, J. L. de C..
Soil solarization for 30 and 50 days significantly reduced the incidence of Verticillium dahliae wilt in tomatoes, and had a residual effect on the level of the disease in eggplants transplanted to the same field 45 days after tomato plants had been eliminated. The reduction in the level of the disease did not, however, correspond to an increase in yield in both crops. Weed community was also considerably affected by solarization. The relative importance of dicotiledoneous plants was higher in the control plots and plots treated with methyl bromide; whereas in solaried plots the importances of grasses and dicotiledoneous plants were similar. In general, solarization and treatment with methyl bromide reduced considerably the population of several groups of...
Tipo: Artigo de periódico Palavras-chave: Solarization; Warming; Microorganism; Tomato; Eggplant; Fungus; Disease; Microarthropod; Community; Insect; Pest; Arthropod.; Verticillium.; Biological control; Soil; Weeds..
Ano: 1993 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/11858
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Solutions for ecosystem-level protection of ocean systems under climate change ArchiMer
Queiros, Ana M.; Huebert, Klaus B.; Keyl, Friedemann; Fernandes, Jose A.; Stolte, Willem; Maar, Marie; Kay, Susan; Jones, Miranda C.; Hamon, Katell; Hendriksen, Gerrit; Vermard, Youen; Marchal, Paul; Teal, Lorna R.; Somerfield, Paul J.; Austen, Melanie C.; Barange, Manuel; Sell, Anne F.; Allen, Icarus; Peck, Myron A..
The Paris Conference of Parties (COP21) agreement renewed momentum for action against climate change, creating the space for solutions for conservation of the ocean addressing two of its largest threats: climate change and ocean acidification (CCOA). Recent arguments that ocean policies disregard a mature conservation research field and that protected areas cannot address climate change may be oversimplistic at this time when dynamic solutions for the management of changing oceans are needed. We propose a novel approach, based on spatial meta-analysis of climate impact models, to improve the positioning of marine protected areas to limit CCOA impacts. We do this by estimating the vulnerability of ocean ecosystems to CCOA in a spatially explicit manner and...
Tipo: Text Palavras-chave: Climate change; Conservation; COP21; Ecosystem model; Habitat; Marine spatial planning; Ocean; Ocean acidification; Species distribution; Warming.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00360/47089/48566.pdf
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