Plankton communities

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  • Green fluorescence. Further, the orange fluorescence can be used to detect second important fluorescing photopigment respectively phycoeritrin. Phycoeritrin is typical in many Synechococcus spp. and some picoeukaryotes, so Synechococcus, Prochlorococcus and picoeukaryotes can easy be discriminated in a plot Red vs. Orange fluorescence (Figure 3).

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  • The Baltic Sea is one of the most investigated water bodies in the world. For decades, the many highly industrialised nations around the Baltic have financed basic and applied investigations, as well as the building and development of research stations and vessels. After World War II, research in the Baltic Proper was intensified and investigations became much more international. The main goals of such investigations were analysis of the eutrophication and pollution of the Baltic Sea, and development of mitigating strategies (e.g. the HELCOM-Program).

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  • The world ocean has somewhere between 10 000 and 100 000 seamounts more than 1 km tall and as many as 1 000 000 features over 100 m tall. These are some of the least understood habitats on the planet. Large seamounts, particularly those close to or within the photic zone, support and attract rich biotic communities and are important for the status of marine food webs and biodiversity. Intensive boom-and-bust fi sheries have depleted fi sh populations and damaged or destroyed associated benthic communities.

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  • 3 Temporary Planktonic Existence 3.1 RELEASE OF PROPAGULES INTO PLANKTON The sources of colonization of living and non-living (inert) surfaces in the marine environment are communities inhabiting hard substrates of natural and artificial origin, and also soft grounds (see Chapter 1). They release dispersal forms, usually called propagules, into water: microorganisms, animal larvae, and macroalgal spores, which are potential colonists (foulers). The contribution of different hard-substrate communities to the colonization (biofouling) process is not the same.

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