The seawater in 24 plastic Nalgene bottles sloshed gently in the wet lab on the Bell M. Shimada, one of the National Oceanic and Atmospheric Administration’s ocean research vessels. Each bottle ...

SEATTLE — For decades, scientists believed Prochlorococcus, the smallest and most abundant phytoplankton on Earth, would thrive in a warmer world. But new research suggests the microscopic bacterium, ...

Phytoplankton thrive in nutrient-rich waters, but excess nitrogen and phosphorus from organic pollution can cause rapid overgrowth, leading to harmful algal blooms that disrupt marine ecosystems.

SEATTLE (AP) — For decades, scientists believed Prochlorococcus, the smallest and most abundant phytoplankton on Earth, would thrive in a warmer world. But new research suggests the microscopic ...