Key Facts About Seagrass

• There are about 60 species of seagrasses worldwide

• Seagrasses are found in shallow coastal waters on every continent except Antarctica

• They evolved from terrestrial plants that returned to the sea about 100 million years ago

• Seagrass meadows are among the most productive ecosystems on Earth

Ecological Importance of Seagrass

Seagrass ecosystems provide vital services:

• Habitat and nursery grounds for many marine species

• Food source for animals like dugongs, manatees, and sea turtles

• Stabilize sediments and reduce coastal erosion

• Improve water quality by filtering nutrients and trapping sediment

• Sequester carbon dioxide, helping mitigate climate change

• Support commercial fisheries and local livelihoods

Threats to Seagrass

Despite their importance, seagrass meadows face numerous threats:

• Coastal development and dredging

• Water pollution and nutrient runoff

• Climate change and rising sea temperatures

• Physical damage from boat propellers and anchors

• Invasive species

It's estimated that seagrass coverage is declining at a rate of 7% annually.