Journal
POLAR BIOLOGY
Volume 30, Issue 8, Pages 969-981Publisher
SPRINGER
DOI: 10.1007/s00300-007-0255-5
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We investigated the distribution of mesozooplankton in waters north of Svalbard (north of 78 degrees 50'N) at 38 stations in August and September of 2002, 2003 and 2004. The zooplankton community was numerically dominated by copepods (58-98% of the total abundance). Zooplankton abundance ranged from 115 individuals m(-3) at the northern most location to 12,296 individuals m(-3) on the shelf. Cluster analysis revealed four different groups with distinct geographic integrity that were identified by variation in species densities rather than by variation in taxonomic composition. Water temperature and salinity differed significantly between the different cluster groups indicating that part of the observed variations in species distribution relate to differences in hydrography. Numerous significant regressions between zooplankton abundance at species level and hydrographical parameters suggest that variability in water masses has measurable effects on zooplankton distribution and species composition in the study area.
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