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Profile: Valves joined via elongate spines to form cylindrical filaments.
D - Aulacoseira islandica is a dominant component of the spring diatom bloom in all 5 Great Lakes. Aulacoseira subarctica is also a dominant component of the spring diatom bloom in Lake Michigan and Huron. 11 Great Lakes Species (including alternative names and named varieties): A agassizii, A agassizii var. malayensis, A alpigena, A ambigua, A canadensis, A distans, A distans var. alpigena (A. alpigena), A distans var. limnetica, A granulata, A granulata var. angustissima, A granulata var. angustissima fo. spiralis, A granulata var. muzzanensis, A islandica, A islandica subsp. helvetica, A italica, A italica var. tenuissima, A italica var. valida, A italica subsp. subarctica, A lirata var. alpigena, A. subarctica, A. valilda Aulacoseira spp.Additional Photos: |
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