Tracking a large-scale and highly toxic Arctic algal bloom: rapid detection and risk communication.

In recent years, blooms of the neurotoxic dinoflagellate have been documented in Pacific Arctic waters, and the paralytic shellfish toxins (PSTs) that this species produces have been detected throughout the food web. These observations have raised significant concerns about the role that harmful algal blooms (HABs) will play in a rapidly changing Arctic. During a research cruise in summer 2022, a massive bloom of was detected in real time as it was advected through the Bering Strait region.