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Registros recuperados: 5
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Entangled fates of holobiont genomes during invasion: nested bacterial and host diversities in Caulerpa taxifolia 5
Arnaud-haond, Sophie; Aires, Tania; Candeias, R.; Teixeira, S. J. L.; Duarte, C. M.; Valero, M.; Serrao, E. A..
Successful prevention and mitigation of biological invasions requires retracing the initial steps of introduction, as well as understanding key elements enhancing the adaptability of invasive species. We studied the genetic diversity of the green alga Caulerpa taxifolia and its associated bacterial communities in several areas around the world. The striking congruence of α and ß diversity of the algal genome and endophytic communities reveals a tight association, supporting the holobiont concept as best describing the unit of spreading and invasion. Both genomic compartments support the hypotheses of a unique accidental introduction in the Mediterranean and of multiple invasion events in Southern Australia. In addition to helping with tracing the origin of...
Tipo: Text Palavras-chave: Caulerpa; Clonal diversity; Endophytic communities; Holobiont; Invasion paradox; Marine invasion.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00369/48058/48145.pdf
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Maritime aerosol network as a component of AERONET - first results and comparison with global aerosol models and satellite retrievals 5
Smirnov, Alexander; Holben, B. N.; Giles, D. M.; Slutsker, I.; O'Neill, N. T.; Eck, T. F.; Macke, A.; Croot, P.; Courcoux, Y.; Sakerin, S. M.; Smyth, T. J.; Zielinski, T.; Zibordi, G.; Goes, J. I.; Harvey, M. J.; Quinn, P. K.; Nelson, N. B.; Radionov, V. F.; Duarte, C. M.; Losno, R.; Sciare, J.; Voss, K. J.; Kinne, S.; Nalli, N. R.; Joseph, E.; Moorthy, K. Krishna; Covert, D. S.; Gulev, S. K.; Milinevsky, G.; Larouche, P.; Belanger, S.; Horne, E.; Chin, M.; Remer, L. A.; Kahn, R. A.; Reid, J. S.; Schulz, M.; Heald, C. L.; Zhang, J.; Lapina, K.; Kleidman, R. G.; Griesfeller, J.; Gaitley, B. J.; Tan, Q.; Diehl, T. L..
The Maritime Aerosol Network (MAN) has been collecting data over the oceans since November 2006. Over 80 cruises were completed through early 2010 with deployments continuing. Measurement areas included various parts of the Atlantic Ocean, the Northern and Southern Pacific Ocean, the South Indian Ocean, the Southern Ocean, the Arctic Ocean and inland seas. MAN deploys Microtops hand-held sunphotometers and utilizes a calibration procedure and data processing traceable to AERONET. Data collection included areas that previously had no aerosol optical depth (AOD) coverage at all, particularly vast areas of the Southern Ocean. The MAN data archive provides a valuable resource for aerosol studies in maritime environments. In the current paper we present results...
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Ano: 2011 URL: https://archimer.ifremer.fr/doc/00142/25304/23375.pdf
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Patterns in planktonic metabolism in the Mediterranean Sea 5
Regaudie-de-gioux, Aurore; Vaquer-sunyer, R.; Duarte, C. M..
Planktonic gross community production (GPP), net community production (NCP) and community respiration (CR) across the Mediterranean Sea was examined in two cruises, Thresholds 2006 and 2007, each crossing the Mediterranean from West to East to test for consistent variation along this longitudinal gradient in late spring to early summer. GPP averaged 2.4 +/- 0.4 mmol O(2) m(-3) d(-1), CR averaged 3.8 +/- 0.5 mmol O(2) m(-3) d(-1), and NCP averaged - 0.8 +/- 0.6 mmol O(2) m(-3) d(-1) across the studied sections, indicative of a tendency for a net heterotrophic metabolism in late spring to early summer, prevalent across studied sections of the Mediterranean Sea as reflected in 70% of negative NCP estimates. The median P/R ratio was 0.6, also indicating a...
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Ano: 2009 URL: https://archimer.ifremer.fr/doc/00419/53083/54009.pdf
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Seasonal patterns in Arctic planktonic metabolism (Fram Strait - Svalbard region) 5
Vaquer-sunyer, R.; Duarte, C. M.; Regaudie-de-gioux, Aurore; Holding, J.; Garcia-corral, L. S.; Reigstad, M.; Wassmann, P..
The metabolism of the Arctic Ocean is marked by extremely pronounced seasonality and spatial heterogeneity associated with light conditions, ice cover, water masses and nutrient availability. Here we report the marine planktonic metabolic rates (net community production, gross primary production and community respiration) along three different seasons of the year, for a total of eight cruises along the western sector of the European Arctic (Fram Strait - Svalbard region) in the Arctic Ocean margin: one at the end of 2006 (fall/winter), two in 2007 (early spring and summer), two in 2008 (early spring and summer), one in 2009 (late spring-early summer), one in 2010 (spring) and one in 2011 (spring). The results show that the metabolism of the western sector...
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Ano: 2013 URL: https://archimer.ifremer.fr/doc/00419/53077/54027.pdf
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Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean 5
Garcia-corral, L. S.; Barber, E.; Regaudie-de-gioux, Aurore; Sal, S.; Holding, J. M.; Agusti, S.; Navarro, N.; Serret, P.; Mozetic, P.; Duarte, C. M..
The temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean was assessed on the basis of measurements of gross primary production (GPP), community respiration (CR) and net community production (NCP), as well as experimental assessments of the response of CR to temperature manipulations. Metabolic rates were measured at 68 stations along three consecutive longitudinal transects completed during the Malaspina 2010 Expedition, in three different seasons. Temperature gradients were observed in depth and at basin and seasonal scale. The results showed seasonal variability in the metabolic rates, the highest rates being observed during the spring transect. The overall mean integrated GPP / CR ratio was 1.39 +/- 0.27 decreasing...
Tipo: Text
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00419/53074/54034.pdf
Registros recuperados: 5
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