Abstract
Abstract During 8 and 9 May 1979 123 zooplankton samples were collected with Juday nets (mesh size 180 m) in Straumsosen and Spjeldnesosen, two basins in Lindaspollene. The zooplankton species could be assigned to five different groups based on modes of change in abundance as the depth at the sampling localities in Spjeldnesosen increased. Evadne nordmanni and Podon spp. had highest abundances in shallow areas, while the abundances of Temora longicornis, Centropages hamatus, Acartia longiremis, Oithona similis, and Rathkea octopunctata varied independently of depth. Pselldocalanus eiongatus, Oncaea borealis, and {Aglantha digitale} were found in low abundances in shallow areas and the abundances seemed to increasc linearly with depth. Sagitta elegans occurred in variable numbers, but the oldest individuals were only found in the deepest part. The different taxa seemed to occur in highest abundances in different subareas within the poll system. The observed horizontal distributions reflected the vertical d...
Published Version
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