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Common Eelgrass (Seagrass)

HomeMarine Algae & SeagrassCommon Eelgrass (Seagrass)

Common Eelgrass (Seagrass)

Zostera marina

Eelgrass is a true flowering plant adapted to life underwater, in contrast to seaweeds which are algae. Its meadows provide important nursery grounds for fish and invertebrates, stabilise sediments, and can store large amounts of carbon, potentially slowing climate change. Around Lihou, these seagrass beds help maintain water quality and serve as havens for young marine life seeking shelter from predators.

  • Habitat: Sandy or muddy substrates in shallow, sheltered bays and lagoons; can extend sub-tidally.
  • When to See: Year-round, though it’s more noticeable in summer when growth is lush.
  • Length: Ribbon-like leaves 20–100 cm long