A major new study shows long-term ocean warming is steadily reducing fish populations, putting global food security at risk.

The author says warming waters are changing local fishing, bringing new species but threatening others. The EPA's ...

Nighttime drops in ocean oxygen raise energy use in small reef fish. Repeated stress could affect reef health as oceans warm.

A new study offers the first direct evidence that deep-dwelling mesopelagic fish, which account for up to 94% of global fish biomass, excrete carbonate minerals at rates comparable to shallow-water ...

A team of science-minded kayakers and snorkelers in La Jolla Cove had the encounter of a lifetime when a dead oarfish washed to the ocean surface on Aug. 10, 2024. This deep-sea fish is incredibly ...