RNA and DNA based 16S rRNA analysis of marine bacterioplankton communities derived from the North Sea
Marine bacterioplankton samples were collected by serial filtration of sea water. Sea water was taken on board of the German research vessel Heincke (cruise: HE361) in July 2011. Collected water samples were prefiltered using glass fiber filters (2.7 µm). Bacterioplankton was subsequently harvested by filtration using a filter sandwich consisting of a glass fiber filter (0.7 µm) and a poly carbonate membrane (0.2 µm). Filters were kept frozen at -80°C.