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Turtle Navigates from Cocos to Galapagos to Change History

Image Source and Courtesy TIRN Expedition in Cocos Islands Costa Rica -tagging turtles.


A green turtle which recently travelled 720 kilometers from Costa Rica´s Islas de Cocos to the Galapagos Islands in Ecuador navigating the treacherous Pacific Ocean in just 14 days has made history and may change the protection status of the waters it swam through. For years now marine and ocean investigators have been conducting studies and tagging diverse organisms such as sharks to prove the connection that exists between the two protected islands and the importance to create a marine protected corridor. The region is plagued by illegal fishing and industrial fishing due to its rich waters. Environmentalists urge for the protection of key areas and now evidence of a new study may be fundamental for decision making policies. 

Costa Rica Hoy reported on June 22nd that “Sanjay” the Green turtle managed to complete a migratory movement between the two islands groups and connected the two protected marine areas. “Sanjay´s” journey reached Galapagos on June 16th, taking on the Pacific Ocean with just 53 kilograms of body weight.

The ancient specie which has evolved through centuries continues to enlighten human kind and inspire. Researchers of the Turtle Island Restoration Network TIRN and Program of Restoration of the Marine Turtle PRETOMA took to Cocos Island Costa Rica and tagged diverse green turtle individuals –obtaining information on “Sanjay” and connection between the East Pacific and migration routes.

“It is truly impressive. Sanjay knew very well were it was heading, it went directly from one marine reserve to the other. These protected areas are important points for threatened species like marine turtles but other migration routes must be considered,” Alex Hearn, Conservation Science Director of TIRN told the press.

TIRN described the expedition as “one normal migration for turtles, one giant discovery for humankind”. The expedition outlasted 10 days and used 4 thousand USD satellite tag. Biologists from the organizations were able to map Sanjay’s exact migration path.

Sanjay’s migration is the latest piece of evidence linking the green turtles of the Galapagos and Cocos Island, a link that biologists have long suspected due to the populations’ genetic similarities.

The marine turtle migration route is believed to be shared by diverse species including hammer sharks, sharks, Galapagos sharks and others. Species are protected both in Cocos Islands Costa Rica as in Galapagos Island Ecuador but once they are out of the reserve waters they face fishing zones packed with industrial fishing fleets. Organizations aim to recover sufficient scientific information of migration routes to establish a marine protected corridor for the species Official data is expected to be made public by the end of the year.