Australian scientists have discovered that some tropical fish have a greater capacity to cope with rising sea temperatures than previously thought – by adjusting over several generations.

Scientists sound an alarm that expanding ocean dead zones are shrinking the habitat for high value fish such as marlins in the tropical northeast Atlantic Ocean

Photographer Ian Osterloh encountered one of the ocean's most remarkable creatures on the NSW south coast this month.

Cayman Island's ban on fishing grouper has has been extended for a further eight years giving the endangered fish an opportunity to continue their recovery.

Florida State University marine biologists are collecting new data on the once severely overfished Atlantic goliath grouper, a native species that is now making a comeback

Australian scientists have urged greater consideration for the brilliantly-hued parrot fishes that tend and renew the world’s imperilled coral reefs.

Three non-native fish species — a panther grouper, spotted scat and yellow tang —have been spotted in Florida waters again this past year after not being seen for as many as 19 years.

The IUCN Red List shows that tunas and sharks are particularly in danger. Additionally other marine plants and animals also face danger in changes to their habitats, including 14 % of sea grasses, 32 % of freshwater crayfish and 33 % of reef-building corals.

A bright blue prawn and a blenny with a black face are recorded further west than ever before in Great Britain.