[1
]Department of Experimental Limnology; Leibniz-Institute of Freshwater Ecology and
Inland Fisheries; Berlin Germany
[2
]Institute for Biochemistry and Biology, Faculty of Science, Potsdam University; Potsdam
Germany
[3
]Universidad Latina de Costa Rica, Campus San Pedro, Apdo. 10138-1000; San Jose Costa
Rica
[4
]Environmental Microbiology Working Group; Leibniz Institute for Baltic Sea Research;
Warnemünde Germany