Ecuador is vigilant due to the emergence of huge fishing vessels in its Galapagos Islands, mostly under the Chinese flag.
The patrols are working to ensure that the fleet of around 260 ships does not enter the delicate ecosystem from international waters.
Chinese ships travel to the region every year in search of marine species.
2017 A Chinese ship carrying 300 tons of wildlife, mostly sharks, was caught in the marine reserve.
“We are vigilant, [conducting] surveillance, patrols to prevent an incident such as the one that occurred in 2017. “Ecuadorian Defense Minister Oswaldo Jarrin told reporters.
The Chinese authorities did not comment immediately after contacting BBC News.
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Former Next Mayor Roque Sevilla told The Guardian that a “protection strategy” was being developed for the islands.
“China’s uncontrolled fishing, just on the edge of a protected area, is undermining Ecuador’s efforts to protect marine life in the Galápagos,” he said.
President Lenin Moreno said Ecuador would hold consultations with other Latin American countries on the Pacific coast – Colombia, Peru, Chile, Panama and Costa Rica – to develop a common regional position on the “threat”.
“Because [natural] wealth in that area, we are under enormous pressure from international fishing fleets, ”he told the El Universo newspaper.
The Galapagos Marine Reserve is rich in shark species, including endangered whales and hammerheads.
The Galapagos Islands are a UNESCO World Heritage Site, famous around the world for their unique plants and wildlife.
Charles Darwin made critical observations about his theory of evolution in islands.