Bodyguard fish: Corals attacked by toxic seaweed use chemical 911 signals to summon help
Corals under attack by toxic seaweed do what anyone might do when threatened – they call for help. A study reported this week in the journal Science shows that threatened corals send signals to fish "bodyg ...
Venomous sea snakes play heads or tails with their predators
In a deadly game of heads or tails venomous sea snakes in the Pacific and Indian Oceans deceive their predators into believing they have two heads, claims research published today in Marine Ecology.
Reef fish arrived in two waves
(Phys.org) —The world's reefs are hotbeds of biological diversity, including over 4,500 species of fish. A new study shows that the ancestors of these fish colonized reefs in two distinct waves, before ...
Global study reveals new hotspots of fish biodiversity
Teeming with millions of species, tropical coral reefs have been long thought to be the areas of greatest biodiversity for fishes and other marine life—and thus most deserving of resources for conservation.
Study suggests overfishing of sharks is harming coral reefs
A team of scientists from Canada and Australia have discovered that the decline in shark populations is detrimental to coral reefs.
Wake up and smell the reef: Fish larvae sniff their way back home
How tiny fish larvae travel away from the reef, then know how to navigate their way back home is a scientific mystery.
Seafood menus from Hawaii reflect long-term ocean changes
The colorful restaurant menus that thousands of tourists bring home as souvenirs from Hawaii hold more than happy memories of island vacations.
Boat noise stops fish finding home
(Phys.org) —Boat noise disrupts orientation behaviour in larval coral reef fish, according to new research from the Universities of Bristol, Exeter and Liège. Reef fish are normally attracted by reef sound ...
Coral comeback: Reef 'seeding' in the Caribbean
Mats of algae and seaweed have shrouded the once thick coral in shallow reefs off Jamaica's north coast. Warm ocean waters have bleached out the coral, and in a cascade of ecological decline, the sea urchins ...
Picky eater fish clean up seaweeds from coral reefs (w/ Video)
(Phys.org)—Using underwater video cameras to record fish feeding on South Pacific coral reefs, scientists have found that herbivorous fish can be picky eaters – a trait that could spell trouble for endangered reef systems.
Fish have enormous nutrient impacts on marine ecosystems, study finds
(Phys.org)—Fish play a far more important role as contributors of nutrients to marine ecosystems than previously thought, according to researchers at the University of Georgia and Florida International ...
Evolution: Social exclusion leads to cooperation
Social exclusion as a punishment strategy helps explain the evolution of cooperation, according to new research published today in the Proceedings of the Royal Society B.
Naive fish easy targets for spear fishers
(Phys.org)—Big fish that have grown up in marine reserves do not seem to know enough to avoid fishers armed with spear guns waiting outside the reserve.
Tracking fish through a coral reef seascape—Ear-bone 'tree rings' provide evidence of connectivity
(Phys.org)—Ocean scientists have long known that juvenile coral reef fishes use coastal seagrass and mangrove habitats as nurseries, later moving as adults onto coral reefs. But the fishes' movements, and ...