The scalloped hammerhead shark is critically endangered from overfishing. MARK CONLIN/VW PICS/UIG VIA GETTY IMAGE Shark populations in the high seas have fallen by 71% since 1970, researchers have found. The main cause is overfishing, which has put three-quarters of these species at risk of extinction. “It’s the first big […]

Osterhage et al., Author provided The mysterious bigfin squid has been spotted in Australia’s waters for the first time. My colleagues and I from the CSIRO and Museums Victoria detail the encounters in our new research, published today in Public Library of Sciences ONE. There have only been about a dozen bigfin […]

A humpback whale jumps to the surface of the Pacific Ocean GETTY IMAGES More than 350 scientists and conservationists from 40 countries have signed a letter calling for global action to protect whales, dolphins and porpoises from extinction. They say more than half of all species are of conservation concern, […]

The contamination happened in the sea off Kamchatka Peninsula, a 1,250-kilometer long peninsula in the Russian Far East A Russian official said Monday that the sea off the remote Kamchatka peninsula may have been contaminated with toxic chemicals as Greenpeace warned of an “ecological disaster” for marine life. Greenpeace has […]

Credit: Pixabay/CC0 Public Domain Excessive nutrients, such as nitrogen and phosphorus, have devastating effects on coastal marine ecosystems by causing algal blooms that deplete oxygen in the water, killing marine life. Such nutrients can enter the sea in wastewater or run-off from agricultural land. However, a new review in open-access […]

Credit: CC0 Public Domain The most successful and cost-effective ways to restore coral reefs have been identified by an international group of scientists, after analyzing restoration projects in Latin America. The University of Queensland’s Dr. Elisa Bayraktarov led the team that investigated 12 coral reefrestoration case studies in five countries. “Coral […]