# of unique
Observations | Known data sets that contain (Alexandrium).
This may include sibling taxa data sources. |
| 50 | Biological Atlas of the Arctic Seas 2000 [ru-03101] |
| 12 | Australia 75years paper [presence-info-only, no counts, no data link] |
| 1 | SAHFOS NATL-CPR [presence-info-only, no counts, no data link] |