Eelgrass
Scientific Name: Zostera marina
Category: plant
Brief Description
A marine flowering plant that grows in shallow coastal waters, forming dense underwater meadows.
Characteristics
Long, green, ribbon-like leaves with blunt tips. It has a complex system of rhizomes (underground stems) and roots that anchor it to the seafloor.
Habitat
Temperate coastal waters, sheltered bays, and estuaries with sandy or muddy bottoms.
When to Find It
Perennial; shoots are most visible and lush during the spring and summer months.
Conservation Status
Vulnerable in many regions due to light reduction, pollution, and coastal development.
Ecological Role
Acts as a foundation species by providing critical nursery habitat for fish and shellfish, stabilizing sediment, and sequestering carbon.
Easily Confused With
Often confused with Surfgrass (Phyllospadix), which grows on rocky shores rather than in sandy/muddy sediments.
Observation Tips
Best observed at very low tide in estuaries or by snorkeling in shallow, calm bays. Avoid walking on beds to prevent damage to rhizomes.
Interesting Facts
Eelgrass is not a seaweed; it is a true vascular plant that evolved from land plants back into the sea, meaning it has flowers, seeds, and roots.