Expanding the Pacific Remote Islands National Marine Monument from almost 87,000 square miles to more than 490,000 square miles.

Chronic stress can lead to depression and anxiety in fish, German scientists discover.

Monitoring wind conditions could provide advanced warning of the presence of Irukajdji jellyfish.

Jvenile fish and corals gravitate toward reefs dominated by healthy corals while specifically avoiding species of seaweed known to colonize degraded reefs.

The sound was being heard by residents living about a quarter-mile away from the Monterey Bay Aquarium.

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Coral reefs are places of immense natural diversity. They accommodate some of the highest densities of animals on earth and have more species than any other marine habitat. However, the species...

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X-Ray Mag #62 - Sep 2014
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The new species of Irukandji jellyfish sparks particular scientific interest because it has no tentacles.

Last year’s record numbers expected to be repeated

Fish fluoresce more in deep water, converting blue-green light into red.

Four million acres in southern Argentina declared Biosphere Reserve by UNESCO.

Findings highlight the uniqueness and high biodiversity value of the Pitcairn Islands as one of the least impacted in the Pacific, and suggest the need for immediate protection.

Wasting syndrome causes creature’s body to disintegrate

A reef complex in Iraqi waters discovered for the first time. It was thought that there were no coral reefs in Iraq.

The value of Australia's newly established network of marine parks has been highlighted by an international project

Agricultural fertilizers leaching into aquatic environment can cause massive algae blooms leading to oxygen depletion. Banks of blue mussels can get the algae populations under control, Danish...

Fishery managers will urge Florida Fish and Wildlife Conservation voting board members to take more steps that allow divers to kill lionfish

Yellow-bellied sea snake can reconstitute itself after heavy rains

Purchase and raising of lionfish for aquariums would become level two felonies.

Seafaring slave ships didn’t vanish in the 19th century. They still persist.

Coral bleaching makes fish behave recklessly. Instead of staying hidden at home, they stray out, making them easy prey for predators.

The recently discovered species, Psammogorgia hookeri, was discovered along rocky ledges by scuba divers at depths of 25 meters (82 feet) in Peru's Paracas National Reserve.

Marine ecologists in Sydney manage to restore the missing crayweed onto two barren reef sites where it once grew abundantly.

A mysterious illness that first appeared in June in Washington state has now spread from Sitka, Alaska, to San Diego. The disease spread with astonishing speed — a healthy group of starfish can...

Two unexpected discoveries could provide insight into corals' resistance and resilience to ocean acidification.

When deciding on the location of terrestrial protected areas, planners often focus only on terrestrial conservation goals, ignoring potential linked benefits to marine ecosystems.

Mangrove forests have been expanding northward along the Atlantic coast of Florida as cold spells are becoming rarer.

A new study by University of Florida and Caribbean researchers indicates even damaged reefs can recover.

Corals are still capable of adapting under current circumstances of sea acidification new research shows.

Increases of carbon dioxide uptake in the oceans leads to more anxious fish a new study shows.

If ocean sediments are heavily contaminated with microplastics, marine lugworms eat less and their energy levels suffer