Ocean Science Fact: Not all fish are cold-blooded

Noumea

27 May 2022

Did you know that not all fish are cold-blooded?

The opah, or moonfish, is the only known warm-blooded fish on Earth. Recent studies shown that the opah circulates heated blood throughout its body, giving it a competitive advantage in the cold ocean depths.

Learn more on PCCOS here.

Source: NOAA

Blog Category

Did you know?

Division

Climate Change and Environmental Sustainability

Fisheries, Aquaculture & Marine Ecosystems

Geoscience, Energy and Maritime

Pacific Community Centre for Ocean Science (PCCOS)

Ocean Science Fact: Not all fish are cold-blooded

Author(s)

Ocean Science Fact: 99% of reef-building corals are at threat due to global warming

Ocean Science Fact: The Pacific is 5.5 times wider than the moon!

Ocean Science Fact: The largest recorded blue whale is 33 meters long

Ocean Science Fact: At a depth of 500 m, the water temperature is down to ~5° Celsius

Ocean Science Fact: Not all fish are cold-blooded

Author(s)

Related Content

Ocean Science Fact: 99% of reef-building corals are at threat due to global warming

Ocean Science Fact: The Pacific is 5.5 times wider than the moon!

Ocean Science Fact: The largest recorded blue whale is 33 meters long

Ocean Science Fact: At a depth of 500 m, the water temperature is down to ~5° Celsius