The marine algae of the post-glacial deposits from the Ottawa Islands, Hudson Bay and Broughton Island off East Baffin Island were examined. A total of 15 non-calcareous species were identified, of which the most abundant at both sites were Sphacelaria plumosa and Desmarestia aculeata. The species assemblages are characteristic of present-day arctic and subarctic floras.
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Illman et al. (1972) studied this question.