What is the Mesoamerican Reef marine ecoregion?
The Mesoamerican Reef stretches from Mexico to Honduras and is the largest barrier reef in the Western Hemisphere. Coral reefs, seagrass, and mangroves here form a patchwork of habitats. Thousands of species live in this maze of ecosystems, from colorful fish to turtles. It is vital for fisheries, tourism, and coastal protection.
Related video
In context
What it is
The Mesoamerican Reef stretches from Mexico to Honduras and is the largest barrier reef in the Western Hemisphere. Coral reefs, seagrass, and mangroves here form a patchwork of habitats. Thousands of species live in this maze of ecosystems, from colorful fish to turtles. It is vital for fisheries, tourism, and coastal protection.
Why it matters
Mesoamerican Reef is useful for understanding how biodiversity, environmental conditions, and human pressures come together in one marine region.
Ocean Literacy Connections
This resource can be explored through One ocean, many features, Ocean and life shape Earth and Ocean and humans.
- How do different ocean places belong to one connected system?
- How do ocean processes and marine life build and reshape Earth?
- How does the ocean affect our lives, and how do our choices affect the ocean?
Explore and connect
Open the ecoregions view to compare regional boundaries, biodiversity context, and related ocean systems.








