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Microbial biogeography of the North Sea during summer
Brandsma, J.; Martínez Martínez, J.; Slagter, H.A.; Evans, C.; Brussaard, C.P.D. (2013). Microbial biogeography of the North Sea during summer. Biogeochemistry 113(1-3): 119-136. dx.doi.org/10.1007/s10533-012-9783-3
In: Biogeochemistry. Springer: Dordrecht; Lancaster; Boston. ISSN 0168-2563; e-ISSN 1573-515X, meer
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| Author keywords |
North Sea; Biogeography; Microbial community; Hydrographic regions;Cluster; Analysis; Phytoplankton; Bacteria; Viruses |
| Auteurs | | Top | Dataset |
- Brandsma, J.
- Martínez Martínez, J.
- Slagter, H.A., meer
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| Abstract |
Micro-organisms are vital for the functioning of all food webs and are the major drivers of the global biogeochemical cycles. The microbial community compositions and physicochemical conditions of the different water masses in the North Sea, a biologically productive sea on the northwestern European continental shelf, were studied during two summer cruises, in order to provide detailed baseline data for this region and examine its microbial biogeography. For each cruise the stations were clustered according to their physicochemical characteristics and their microbial community composition. The largest cluster, which covered most of the central and northern North Sea, consisted of stations that were characterized by a thermally stratified water column and had low chlorophyll a autofluorescence and generally low microbial abundances. The second main cluster contained stations that were dominated by picoeukaryotes and showed the influence of influxes of North Atlantic water via the English Channel and south of the Shetland Islands. The third main cluster was formed by stations that were dominated by cyanobacteria and nanoeukaryotes in the reduced salinity Norwegian Coastal and Skagerrak waters, while the fourth cluster represented the German Bight, a region with strong riverine input, high nutrient concentrations, and consequently high heterotrophic bacterial and viral abundances. Despite the complex and dynamic hydrographic nature of the North Sea, the consistent distinctions in microbiology between these different hydrographic regions during both cruises illustrate the strong links between the microbial community and its environment, as well as the possibility to use microorganisms for long-term monitoring of environmental change. |
| Dataset |
- Flanders Marine Institute (VLIZ); Royal Netherlands Institute for Sea Research (NIOZ); (2015):Gridded abundance maps of microorganisms from the North Sea; European Marine Observation Data Network (EMODnet) Biology project (www.emodnet-biology.eu), funded by the European Commission’s Directorate - General for Maritime Affairs and Fisheries (DG MARE)., meer
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