• In this undated handout microscopy photo provided by NOAA Fisheries, the algae pseudo-nitzchia, which produces the toxic domoic acid, is seen from an algae bloom sample that the NOAA ship Bell M. Shimada collected during its survey this summer on the West Coast. One of the largest toxic algae blooms recorded off the West Coast is much denser, more widespread and may go extend deeper than initially thought, say scientists who surveyed the event aboard a National Oceanic and Atmospheric Administration research vessel. (NOAA Fisheries via AP)

    Toxic algae blooming in warm water from California to Alaska

    SEATTLE (AP) — A vast bloom of toxic algae off the West Coast is denser, more widespread and deeper than scientists feared even weeks ago, according to surveyors aboard a National Oceanic and Atmospheric Administration research vessel.