World Wildlife Fund

What We Do

Protect Marine Turtles

Give Turtles a Place to Nest

Help protect marine turtles from the impacts of climate change at one key nesting site for a year.
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The Wild Things

Ride the tuna highway of the high seas and swim with rare river dolphins in a new edition of WWF's biweekly podcast series. Learn more.

Take Action

Take Action on Climate Change

Tell your member of Congress to vote YES on the American Clean Energy and Security Act. Take Action

Travel

Travel With WWF

Visit our travel section and choose from many amazing trips! Learn more

See Whale Sharks with WWF

Travel with WWF to swim with the world's largest fish.

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Adopt a Turtle

Make a symbolic Turtle adoption to help save some of the world's most endangered animals from extinction and support WWF's conservation efforts. Adopt Now!

Support WWF

Show your love of the panda with the WWF Visa Signature^® credit card from Bank of America. Bank of America will contribute $100 to WWF for each new qualifying account.*

* See application for details.

Mesoamerican Reef

The Atlantic Ocean’s largest coral reef

See the winners of the First Annual Mangrove-Friendly Shoreline Development Challenge.

The Mesoamerican Reef is unique in the Western Hemisphere not only for its size, but also because of its array of reef types and luxuriance of corals. It hosts more than 65 species of stony coral and more than 500 species of fish, including the mammoth whale shark—the largest fish in the world. An ancient natural system dating back 225 million years, the reefs function as a natural barrier to storms and hurricanes and are critical to the survival of plant and animal species. Compared with many other parts of the Caribbean, the reefs here are in relatively good condition.

The reef -- that stretches nearly 700 miles from the northern tip of Mexico’s Yucatan Peninsula to the Bay Islands in northern Honduras -- is part of a larger interconnected system of currents and habitats that stretch throughout the Caribbean Basin and beyond and is one of the region's greatest natural assets.

Shallow coral reef - Belize.
© WWF-Canon /Anthony B. RATH

Its massive structure provides an important defense against storms and coastal erosion, while the living reef and associated ecosystems support recreation and commercial fishing.

WWF has placed a high priority on protecting the Mesoamerican Reef. For the past two decades, World Wildlife Fund has been on the ground and in the waters of the Mesoamerican Reef ecoregion to ensure this Caribbean treasure is preserved for future generations.

WWF's vision: Enhance the health of the Mesoamerican Reef’s diverse ecosystems and provide sustainable livelihoods for local people.

The place. A large mosaic of ecosystems, the Mesoamerican Reef covers nearly 115 million acres—from the northern end of the Yucatán Peninsula in Mexico and the Caribbean coasts of Belize and Guatemala, to the Bay Islands in northern Honduras. It includes ocean habitats, coastal zones, tropical and cloud forests, and watersheds that drain the Caribbean slope.
The species . The Mesoamerican Reef hosts more than 65 species of stony coral and more than 500 species of fish—including commercially-vital grouper, snapper and spiny lobster. It also provides refuge for sea turtles that feed and nest along the shoreline. Its watershed is home to jaguars, howler monkeys and birds such as the quetzal.
The people. More than two million people live in the coastal communities that span four countries. This population of great cultural and ethnic diversity depends on economic activities linked to coastal and marine resources, such as fishing and tourism. The region is also experiencing rapid population growth and increased exploitation of land and resources.