Spatio-temporal composition and dynamics of zooplankton in the Kalmar Sound (western Baltic Sea) in 2009-2010

• In pelagic food webs, zooplankton is the link between lower and higher trophic levels. It is thus essential to know how the zooplankton community structure varies with its environment. We investigated the seasonal and spatial variation in the zooplankton diversity and community structure during two consecutive years in the Kalmar Sound, along the Swedish east coast, an area with a strong bathymetric gradient and of high ecological importance for e.g. commercial fish species. Two zooplankton communities were identified in the area: a coastal/estuarine community in the south and an open-water community in the north. They were separated mainly by differing salinity and temperature conditions. Biodiversity increased from spring to autumn and was higher in the open waters.

Ämnesord

NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)

NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)

Nyckelord

HERRING CLUPEA-HARENGUS

SPRAT SPRATTUS-SPRATTUS

ACARTIA-TONSA

COPEPODA

LONG-TERM DYNAMICS

COD GADUS-MORHUA

MESOZOOPLANKTON

DISTRIBUTION

COMMUNITY STRUCTURE

TROPHIC CASCADES

BORNHOLM BASIN

REGIME SHIFTS

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