Washington – Endangered sea turtles Show recovery signs in most places where they are worldwide, according to a new global survey published on Thursday.
“Many of the turtle populations have returned, although some have not done so,” said Duke Stuart Pimm environmentalist, who did not participate in the investigation. “In general, the history of marine turtle is one of the true success stories of conservation.”
The study analyzed 48 seas turtle populations worldwide. Scientists measured the impacts of threats such as hunting, pollution, coastal development and Climate change to marine animals. In more than half of the areas studied, threats are generally decreasing, according to the study.
But there are some exceptions. Sea turtles populations in the Atlantic Ocean are more likely to recover than those of the Pacific Waters. And the breeding turtles are not being carried, as well as other species.
Worldwide, backbacks are considered vulnerable to extinction, but many groups are critical, according to the International Union for Nature Conservation.
The seven regions in which Backbacks are facing high environmental risks, said study co -author Bryan Wallace, an ecolibrium wildlife ecologist in Colorado.
The turtles of the contraction are famous for making the longer marine migrations of any animal, with some individuals swimming up to 3,700 miles (5,955 kilometers) in each direction. That feat moves them through a wide strip of regions and can expose them to unique risks, he said.
Meanwhile, green turtles are still considered in danger worldwide, but their populations show signs of recovery in many regions of the world, researchers found.
“At the end of commercial crops and allow them to recover, their populations now do very well” in the coastal waters of many regions of Mexico and the United States, said co -author Michelle María Capistán, a researcher at Stanford University who has done field work in both countries.
The sea turtles were protected under the Law of Endangered Species of the United States of 1973, and Mexico prohibited all the captures of the sea turtles in 1990. But it took a few decades for the results of these actions, together with the efforts to protect the nested beaches and reduce the accidental top in fishing, to appear in the trends of the population, he said.
Throughout the world, the problem of sea turtles that die after accidentally tangling in fishing team is still a great threat, Wallace said. New technologies for spare turtles are being developed, but must be accepted and regularly used by various fishing communities to be effective, he added.
The survey was published in the Endangered Species Research magazine and is the first update in more than a decade.
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