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| Ghiglione, J. F.; Palacios, C.; Marty, J. C.; Mevel, G.; Labrune, C.; Conan, P.; Pujo-pay, M.; Garcia, N.; Goutx, M.. |
| Bacterioplankton plays a central role in energy and matter fluxes in the sea, yet the factors that constrain its variation in marine systems are still poorly understood. Here we use the explanatory power of direct multivariate gradient analysis to evaluate the driving forces exerted by environmental parameters on bacterial community distribution in the water column. We gathered and analysed data from a one month sampling period from the surface to 1000m depth at the JGOFS-DYFAMED station (NW Mediterranean Sea). This station is characterized by very poor horizontal advection currents which makes it an ideal model to test hypotheses on the causes of vertical stratification of bacterial communities. Capillary electrophoresis single strand conformation... |
| Tipo: Text |
Palavras-chave: Free living bacteria; Ribosomal RNA genes; Strand conformation polymorphism; Flame ionization detection; Dissolved organic carbon; 16S RDNA; Microbial diversity; Lipid classes; Phytoplankton dynamics; Multivariate analyses. |
| Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00208/31974/30409.pdf |
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| Marty, J. C.; Chiaverini, J.. |
| Data obtained during the monthly cruises of the DYFAMED time-series study (northwestern Mediterranean Sea) in the period 1995-2007 were compiled to examine the hydrological changes and the linked variation of some biogeochemical characteristics (nutrients and pigments). A regular increase of temperature and salinity (0.005 A degrees C y(-1), 0.0022 psu y(-1)) was recorded in deep waters of the NW Mediterranean Sea (2000 m depth) during 1995-2005. In February 2006 an abrupt increase in T (+0.1 A degrees C) and S (+0.03 psu) was measured at 2000 m depth as the result of successive intense winter mixing events during the 3 previous years. The February 2006 event led to the mixing of the whole water column (0 to > 2000 m) and increased salt and heat content... |
| Tipo: Text |
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| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00309/42029/41325.pdf |
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