phytoplankton

University of Alaska Fairbanks

The tiny but mighty phytoplankton live at the base of the food chain in the Gulf of Alaska. They're a food source for small crustaceans, which in turn feed small fish, then bigger fish, then seabirds and marine mammals. 

Each spring and summer, a large concentration of phytoplankton blooms in the gulf. This year, researchers recorded the biggest bloom they’ve ever seen.