Plastic garbage, such as cutlery, bags, bottles and wrappers was discovered floating among the algae.
The shocking images have captured the clear blue seas of a Caribbean island being smothered by a tide of plastic garbage.
Taken from the Honduran island of Roatán, the images show plastic cutlery, bags, bottles and wrappers floating among the seaweed.
A photograph, taken from below the waterline, shows that the sun is blocked by the weight of pollution dumped into the ocean.
The Blue Planet Society, a lobby group that campaigns to save the world's oceans, suggested that the plastic may have originated in the Montagua River in Guatemala.
Recent images captured a torrent of debris that was carried into the sea from its mouth.
Caroline Power, who lives in Roatan, which is only 12 miles long and three miles wide, shared the images on social media to raise awareness of the issue.
She said it should make people think carefully about their use of plastic.
"Think about your daily life," he wrote in a Facebook post. “How did you eat your food the last time you ate? How was your last street food served? Most likely, there is styrofoam and it was served with a plastic fork and then put in a plastic bag. "
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“Do you still use plastic garbage bags? Plastic soda bottles? Zip lock bags Plastic wrap on your food? Do you buy toilet paper that is wrapped in plastic instead of paper? Do you bag your produce fruits and vegetables at the grocery store?
Challenging everyone to put away the garbage for a week, he said that people would be "disgusted" with the amount of plastic they would find.
Image of plastic tide taken from below the waterline (Caroline Power Photography)
Close-up shows plastic knives and forks among the trash (Caroline Power Photography)
More than eight million tons of plastic go into the oceans each year, and it is estimated that by 2050 there will be more fish than fish.
Our seas are now believed to contain about 51 trillion microplastic particles, 500 times more than the stars in our galaxy.
This pollution is damaging more than 600 species worldwide amid what many now consider to be the sixth mass extinction of life on Earth.
By Tom Embury Denis
Original article (in English)