Asterionellopsis glacialis
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| Taxonomic Group: | Diatom |
| Trophic Status: | Autotrophic |
| Size Range: | 5.7-13.3 μm wide x 41.8-82.5 μm long (LUMCON Guide); 8-12 μm wide x 30-150 μm long (Cupp 1943, Tomas 1997); 30-150 μm long (Horner 2002) |
| Key Characteristics: | Cells narrow with straight sides that expand into a triangular foot pole; one or two chloroplasts in foot pole only; cells unite at corners of the enlarged region, and form starlike spiral colonies |
| Confused With: | |
| Toxin: | None known |