Figure F15. Relative abundances of sea ice dinoflagellates, sea ice diatoms, diatom species Neodenticula seminae (a proxy for pelagic/open water environment), and semiquantitative counts of subpolar planktonic foraminifers. Sea ice diatoms considered include Bacteriosira fragilis, Detonula confervacea, Fragilariopsis cylindrus, Thalassiosira hyalina, and Thalassiosira antarctica spores. Sea ice dinoflagellates considered include Islandinium minutum, Operculodinium centrocarpum (Arctic morphotype), and Impagidinium minutum.
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