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| Registros recuperados: 45.096 | |
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| Bittig, Henry C.; Maurer, Tanya L.; Plant, Joshua N.; Schmechtig, Catherine; Wong, Annie P. S.; Claustre, Hervé; Trull, Thomas W.; Udaya Bhaskar, T. V. S.; Boss, Emmanuel; Dall’olmo, Giorgio; Organelli, Emanuele; Poteau, Antoine; Johnson, Kenneth S.; Hanstein, Craig; Leymarie, Edouard; Le Reste, Serge; Riser, Stephen C.; Rupan, A. Rick; Taillandier, Vincent; Thierry, Virginie; Xing, Xiaogang. |
| The Biogeochemical-Argo program (BGC-Argo) is a new profiling-float-based, ocean wide, and distributed ocean monitoring program which is tightly linked to, and has benefited significantly from, the Argo program. The community has recommended for BGC-Argo to measure six additional properties in addition to pressure, temperature and salinity measured by Argo, to include oxygen, pH, nitrate, downwelling light, chlorophyll fluorescence and the optical backscattering coefficient. The purpose of this addition is to enable the monitoring of ocean biogeochemistry and health, and in particular, monitor major processes such as ocean deoxygenation, acidification and warming and their effect on phytoplankton, the main source of energy of marine ecosystems. Here we... |
| Tipo: Text |
Palavras-chave: Ocean observation; Ocean biogeochemical cycles; Sensors; Carbon cycle; Ocean optics; Best practices; Argo. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00512/62344/66607.pdf |
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| Goulletquer, Philippe. |
| A bibliography of over 1,400 papers on reproduction, recruitment, genetic, pathology, basic biology, and the geographic distribution of the Manila clam Tapes philippinarum is compiled to provide a guide to scientists. This review aims to facilitate access and diffusion of scientific works carried out on this species to the international scientific community concerned by Tapes philippinarum. The bibliography includes publications as well as grey literature published around the world since the early century. Moreover, the large synonymy of Tapes philippinarum and the species geographic distribution are reviewed and updated. The species importance is assessed through public fishery landings and aquaculture production per country. The D'v'eral1 worldwide... |
| Tipo: Text |
Palavras-chave: Bibliography; Tapes philippinarum; Manila clam; Synthèse bibliographique; Tapes philippinarum; Manila clam. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/rapport-3221.pdf |
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| Rumin, Judith; Nicolau, Elodie; Gonçalves De Oliveira Junior, Raimundo; Fuentes-grünewald, Claudio; Flynn, Kevin J; Picot, Laurent. |
| A bibliographic database of scientific papers published by authors affiliated worldwide, especially focused in Europe and in the European Atlantic Area, and containing the keywords “microalga(e)” or “phytoplankton” was built. A corpus of 79,020 publications was obtained and analyzed using the Orbit Intellixir software to highlight the evolution of the research domain. Publication rates from 1960 to 2019, organization of the research, collaboration networks between countries and organizations, emerging and fading research concepts, major studied species, and associated concepts, as well as journals publishing microalgae research were considered. As a result, of the 79,020 papers published worldwide, 26,137 included authors from Europe (33% of world... |
| Tipo: Text |
Palavras-chave: Biotechnology; European Atlantic Area; Microalgae; Phytoplankton; Research; Market; Bibliometrics. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00605/71725/70191.pdf |
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| Kieffer, B; Arndt, Nt; Weis, D. |
| A bimodal volcanic sequence of 230 m thickness on Skiff Bank, a western salient of the northern Kerguelen Plateau, was drilled during ODP Leg 183. The sequence comprises three main units: a mafic unit of trachybasalt flows sandwiched between two units of trachytic or rhyolitic flows and volcaniclastic rocks. Although interpretation is complicated by moderate to strong alteration of the rocks, their original chemical character can be established using the least mobile major and trace elements (Al, Th, high field strength elements and rare earth elements). High concentrations of alkalis and incompatible trace elements indicate that both mafic and felsic rocks are alkalic. The felsic rocks may have been derived by partial melting of mafic rocks, followed by... |
| Tipo: Text |
Palavras-chave: Ocean Drilling Program; Kerguelen Plateau; Skiff Bank. |
| Ano: 2002 |
URL: https://archimer.ifremer.fr/doc/00223/33406/31863.pdf |
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| Raveau, Adriana; Macher, Claire; Mehault, Sonia; Merzereaud, Mathieu; Le Grand, Christelle; Guyader, Olivier; Bertignac, Michel; Fifas, Spyros; Guillen Garcia, Jordi. |
| Several fleets with various fishing strategies operate as a mixed fishery in the Bay of Biscay. Among the main fleets, bottom trawlers target Norway lobster (Nephrops norvegicus) and, together with gillnetters, they also catch hake (Merluccius merluccius). Trawling leads to average-size catches that are below the minimum landing size (MLS); such catches are discarded since they cannot be sold. These discards result in negative impacts on stock renewal, as most of them do not survive. This also results in an economic loss for both bottom trawlers and gillnetters since these discards represent a future loss of rent. This study, based on the 2009 and 2010 selectivity experiments at sea, assesses the short- and long-term bio-economic impacts of four... |
| Tipo: Text |
Palavras-chave: Demersal trawl fishery; Bio-economic analysis; Selectivity; Simulation; Selective device; Nephrops norvegicus; Merluccius merluccius; Atlantic Ocean. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00110/22135/19774.pdf |
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| Guillen Garcia, Jordi; Maynou, Francesc; Floros, Christos; Sampson, David; Conides, Alexis; Kapiris, Kostas. |
| It has recently been shown that two deep-water red shrimp species (Aristeus antennatus and Aristaeomorpha foliacea) have the potential to support a viable fishery in the Greek Ionian Sea (eastern Mediterranean). In this article, we investigate (i) the evolution that this newly developed trawl shrimp fishery may undergo when subjected to different management measures, and (ii) the most suitable extraction rates considering the uncertainties about the resource. We further analyse the effects that potential future fuel price increases and changes in the market may have on the fishery. Forecasting the biological and economic consequences of management actions, as well as the effects of market changes on inputs and outputs before they are applied, may help... |
| Tipo: Text |
Palavras-chave: Bio-economic modelling; Market development; Fuel price; Newly developed stocks; Ionian Sea; Red shrimps. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00099/20995/19800.pdf |
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| Cisse, Abdoul; Gourguet, Sophie; Doyen, L.; Blanchard, Fabian; Pereau, J. -c.. |
| This paper offers a theoritical and empirical model of ecosystem-based fishery management. A multi-species and multi-fleet integrating Lotka-Volterra trophic dynamics as well as production and profit assessments is developed and applied to the coastal fishery of French Guiana. This small-scale fishery constitutes a challenging example with high fish biodiversity, several non-selective fleets and a potentially increasing local food demand due to demographic growth. The dynamic model is calibrated with 13 species and four fleets using monthly catch and effort data from 2006 to 2009. Several contrasted fishing scenarios including status quo, total closure, economic and viable strategies are then simulated. They are compared from the viewpoints of both... |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00124/23483/21311.pdf |
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| Overnell, J; Harvey, Sm; Parkes, Rj. |
| The sediments of the upper basins of Lochs Goil, Fyne and Etive were high in both solid phase extractable manganese (up to 3.7% w/w), and high in pore water manganese (up to 600 mu M), while Loch Linnhe sediments were low in manganese. Solid phase manganese from the surface sediments at the deepest stations was highest in those lochs where the mean residence time of the bottom water is longest, indicating the importance of manganese cycling through the water column. Porewater iron concentrations in the top 2 cm of sediment were highest near the heads of the lochs, i.e. near the main freshwater inputs. Within sediments of Lochs Goil, Fyne and Etive high rates of total sulphate reduction were associated with high relative rates of formation of acid volatile... |
| Tipo: Text |
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| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00094/20497/18166.pdf |
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| Le Bris, Nadine. |
| Although occupied submersibles have played an essential role in the discovery and study of hydrothermal ecosystems at depths ranging from 15003500 m, operational constraints at great depths have meant that the wide chemical and thermal diversity of the hydrothermal environments have long remained poorly defi ned. In the last decade, use of remotely operated vehicles (ROVs) to substantially extend dive time and development of a new set of dedicated instruments have greatly expanded our capacity to characterize seafl oor hydrothermal habitats at the interface between hydrothermal fl uid and seawater. In particular, major breakthroughs in the fi eld of in situ chemical sensing and highpressure experimentation have led to a much better understanding of the... |
| Tipo: Text |
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| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-6388.pdf |
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| Mairet, Francis. |
| Homeostasis is the capacity of living organisms to keep internal conditions regulated at a constant level, despite environmental fluctuations. Integral feedback control is known to play a key role in this behaviour. Here, I show that a feedback system involving transcriptional and post-translational regulations of the same executor protein acts as a proportional integral (PI) controller, leading to enhanced transient performances in comparison with a classical integral loop. Such a biomolecular controller-which I call a level and activity-PI controller (LA-PI)-is involved in the regulation of ammonium uptake by Escherichia coli through the transporter AmtB. The P-II molecules, which reflect the nitrogen status of the cell, inhibit both the production of... |
| Tipo: Text |
Palavras-chave: Homeostasis; Perfect adaptation; Regulatory motif; Transcriptional and post-translational regulations. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00434/54598/55968.pdf |
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| Bustabad, E. A.; Garcia, G; Rodriguez-pardo, L.; Farina, J.; Perrot, H.; Gabrielli, C.; Bucur, B.; Lazerges, M.; Rose, D.; Compere, Chantal; Arnau, A.. |
| This work deals with the development of a high sensibility DNA biosensor based on a 50MHz Quartz Crystal Microbalance (QCM) Oscillator Electronic Circuit. The designed QCM oscillator sensor is able to detect the presence of complementary DNAs in a solution that match the sequence on a given strand in function of the changes in the output frequency of the oscillator. The design is adapted so that the Barkhausen condition is satisfied even when the quartz is immerged in liquid media. Also a comparative study of the developed 50MHz biosensor in front of a QCM oscillator with smaller frequency is carried out, with object of checking if the sensibility of the oscillator increases, allowing to detect smaller concentrations of the complementary DNA. |
| Tipo: Text |
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| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00021/13198/10574.pdf |
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| Howell, Kerry L.; Hilário, Ana; Allcock, A. Louise; Bailey, David M.; Baker, Maria; Clark, Malcolm R.; Colaço, Ana; Copley, Jon; Cordes, Erik E.; Danovaro, Roberto; Dissanayake, Awantha; Escobar, Elva; Esquete, Patricia; Gallagher, Austin J.; Gates, Andrew R.; Gaudron, Sylvie M.; German, Christopher R.; Gjerde, Kristina M.; Higgs, Nicholas D.; Le Bris, Nadine; Levin, Lisa A.; Manea, Elisabetta; Mcclain, Craig; Menot, Lenaick; Mestre, Nelia C.; Metaxas, Anna; Milligan, Rosanna J.; Muthumbi, Agnes W. N.; Narayanaswamy, Bhavani E.; Ramalho, Sofia P.; Ramirez-llodra, Eva; Robson, Laura M.; Rogers, Alex D.; Sellanes, Javier; Sigwart, Julia D.; Sink, Kerry; Snelgrove, Paul V. R.; Stefanoudis, Paris V.; Sumida, Paulo Y.; Taylor, Michelle L.; Thurber, Andrew R.; Vieira, Rui P.; Watanabe, Hiromi K.; Woodall, Lucy C.; Xavier, Joana R.. |
| The ocean plays a crucial role in the functioning of the Earth System and in the provision of vital goods and services. The United Nations (UN) declared 2021–2030 as the UN Decade of Ocean Science for Sustainable Development. The Roadmap for the Ocean Decade aims to achieve six critical societal outcomes (SOs) by 2030, through the pursuit of four objectives (Os). It specifically recognizes the scarcity of biological data for deep-sea biomes, and challenges the global scientific community to conduct research to advance understanding of deep-sea ecosystems to inform sustainable management. In this paper, we map four key scientific questions identified by the academic community to the Ocean Decade SOs: (i) What is the diversity of life in the deep ocean? (ii)... |
| Tipo: Text |
Palavras-chave: Deep sea; Blue economy; Ocean Decade; Biodivercity; Essential ocean variables. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00666/77768/79904.pdf |
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| Registros recuperados: 45.096 | |
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