| Clue | Source | Date |
|---|---|---|
| Harmful algal blooms | New York Times | 14 Jul 2024 |
| Colorful blooms along the coast | New York Times | 08 Jul 2022 |
| Seawater discolorations caused by algal blooms | ||
| Colorful ocean phenomena caused by dinoflagellates | New York Times | 05 Jun 2018 |
| Colorful ocean phenomena caused by dinoflagellates | ||
| Undesirable coastal phenomena | ||
| Water conditions toxic to shellfish | ||
| Invasions of certain algae. |