What’s Killing Coral Reefs in Florida is Also Killing Them in Belize

Only 17 percent of live coral cover remains on fore-reefs in Belize. A study finds new evidence that nitrogen enrichment from land-based sources like agriculture run-off and sewage, are significantly driving macroalgal blooms to increase on the Belize Barrier Reef and causing massive decline in hard coral cover. With only 2 percent of hard coral cover remaining in the Florida Keys National Marine Sanctuary, it’s too late to save that reef, but there’s still hope for the Belize Barrier Reef.

New Study Finds That Parasites Can Drain Energy from Hosts Prior to Infection

A new study by Scripps Institution of Oceanography at the University of California San Diego and the Norwegian University of Life Sciences has found that a species of brain-infecting parasite can disrupt the metabolism of its host—the California killifish—both before and after infection.

Marine animals live where ocean is most ‘breathable,’ but ranges could shrink with climate change

Research shows that many marine animals already inhabit the maximum range of breathable ocean that their physiology allows. The findings are a warning about climate change: Since warmer waters harbor less oxygen, stretches of ocean that are breathable today for a species may not be in the future.