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Gyrodinium sp, in Western Arctic Ocean
Heterotrophic Gyrodinium sp. dinoflagellate observed in a bloom of centric diatoms, July 2004, Western Arctic Ocean. These large non-thecate dinoflagellates are a significant component of the total microzooplankton biomass in arctic and subarctic regions, prey on bloom-forming diatoms, and are food for mesozooplankton.