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This Small Island Nation Makes a Big Case For Protecting Our Oceans

Environment

This Small Island Nation Makes a Big Case For Protecting Our Oceans

Two years ago, Palau created one of the largest marine reserves on the planet—and it’s paying off.


By Sarah Gibbens | PUBLISHED APRIL 3, 2017

It stands to reason that if you protect the ocean, ecosystems will thrive. Now, scientists have hard data to back up that logical assumption, thanks to a sweeping study of marine reserves in the island nation of Palau.
Nearly two years ago, Palau officially designated 193,000 square miles of its maritime territory as a fully protected marine reserve, where no fishing or mining can take place. The reserve became the sixth-largest of its kind in the world—while the island of Palau is smaller than New York City, its marine protected area became larger than the state of California.
In a statement made at the time, Palau’s President Tommy Remengesau, Jr., said the move was essential to conserving the island’s livelihood: “Island communities have been among the hardest hit by the threats facing the ocean. Creating this sanctuary is a bold move that the people of Palau recognize as essential to our survival.”
Now, science has confirmed the case: In a paper published March 30 in the journal PLOS ONE, researchers from the Fisheries Ecology Research Laboratory at the University of Hawaii report the results of their efforts set out to monitor just how much positive impact a marine protected area could have.
Their study focused heavily on the amount of biomass—fish and so-called benthic organisms living on the sea floor—that were present in Palau’s protected areas. To disturb the marine life as little as possible, the researchers didn’t take any samples and instead derived their results from photographs and direct visual estimates.
They found that protected waters had twice the number of fish as unprotected waters and five times the number of predatory fish. As a key food source for other predators, a healthy fish population indicates a thriving ecosystem.
“What we measured confirmed that no-take marine reserves help increase the biomass of fish, as we’ve seen in other areas around the world,” says Enric Sala, a National Geographic Eexplorer-in-residence who worked on the study.
Protected areas allow Palau’s fish to produce more offspring, which in turn produces a number of benefits for local fishers. The study suggests that when biomass increases inside protected areas, the resulting spillover of adult fish populations into non-protected waters leads to more abundant catches for local fisheries.
Sala notes that this successful conservation was attributable not only to policy instated by the local government, but also to the culture of conservation among the island’s inhabitants.
The nation has no military with which to enforce regulations. Instead, local conservation efforts evolved from a thousand-year-old tradition called bul. The practice takes place when Palau’s Council of Chiefs places certain reefs off limits to allow fish undisturbed space to breed and feed. Heeding the sensitivity of fish during these periods ensured populations would be sufficient for feeding local communities at later times in the year.
Palau depends heavily on a healthy marine ecosystem. It has one of the highest rates of biodiversity on the planet, and a significant portion of its economic revenue is generated by environmental tourism.
Of course, Palau isn’t the only country to benefit from healthy marine resources, and only 1.6 percent of the world’s oceans are protected. The researchers hope other governments will take notice of how beneficial these protected areas can be.
“We need as many more reserves as possible in remote and in populated places, large and not so large,” saysid Sala. “There is no time to waste.”

Source: This Small Island Nation Makes a Big Case For Protecting Our Oceans

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