Major study shows need for expansion of protected areas
As much as a third of the world’s oceans should be protected to help buffer against long-term climate change impacts, scientists said in a new study, calling for an expansion of protected areas, as well as better management.
Globally, coastal nations have committed to protecting 10 percent of their waters by 2020, but only 3.5 percent of the ocean has been set aside, and less than half of that (1.6 percent) is strongly protected from exploitation.
Results of the study, which evaluated 145 peer-reviewed studies on the impact of marine reserves, is being published this week in Proceedings of the National Academy of Sciences.
“Marine reserves cannot halt or completely offset the growing impacts of climate change,” said Oregon State University’s Jane Lubchenco, former National Oceanic and Atmospheric Administration (NOAA) Administrator and co-author on the study. “But they can make marine ecosystems more resilient to changes and, in some cases, help slow down the rate of climate change. Continue reading “Marine preserves can protect oceans from global warming”→
‘The politics of ocean protection are too often disconnected from the science and knowledge that supports it …’
In a perfect world, anywhere from 10 to 50 percent of the world’s oceans would have some type of protection to help sustain ecosystems and critical resources. But while recent decades have brought some progress in ocean conservation, we’re still far from the targets set by scientists, according to a new study published in the journal Science.
Study shows rebound of coral trout in no-fishing zones
FRISCO — Long-term monitoring in the Great Barrier Reef ecosystem shows that marine protection pays off in a big way, as scientists said that coral trout biomass has more than doubled since the 1980s in the green zones.
The trout in the protected reserves are bigger and more abundant than those in fished “blue zones” of the Great Barrier Reef Marine Park, and they are also better able to cope with cyclone damage, according to a long-term study published today in Current Biology. Similar approaches may be beneficial for coral reefs around the world, the researcher concluded. Continue reading “Protected zones pay off for Great Barrier Reef”→
Cordell Bank, Gulf of the Farallones home to 25 threatened and endangered species
FRISCO — A pair of marine sanctuaries off the coast of northern California are doubling in size, offering more protection for globally significant and productive marine ecosystems. The sanctuaries encompass estuarine wetlands, rocky intertidal habitat, open ocean, and shallow marine banks.
The study involved tracking turtles from breeding grounds in Cyprus, Turkey, Israel and Syria and pinpointing ten foraging grounds. Two major hotspots in Libya account for more than half of the turtles which were tracked to conclusive endpoints.
‘If we don’t worry about the imminent threats now, it’s probably not worth worrying about the medium-term future’
By Bob Berwyn
FRISCO — The world’s penguins could use a little help, a team of leading conservation biologists said last month, announcing results of a study that systematically assessed global risks to the southern hemisphere sea birds.
While global warming remains a long-term threat, other impacts, primarily related to human activities, are a more clear and present danger, the scientists said, advocating for a more widespread network of marine protected areas to buffer penguins from pollution, tourism and fishing.
“We need to address some of these issues before we think about resilience to climate change,” said Dr. Phil Trathan, head of conservation biology with the British Antarctic Survey. “If we don’t worry about the imminent threats now, it’s probably not worth worrying about the medium-term future,” Trathan said, explaining that penguins living and breeding in southern Africa and South America face the highest risks.