Vital to the ocean system Eelgrass

also known as Tasman Grass-wrack

Hear all about it!

Eelgrass is also known as Tasman Grass-wrack. This grass is common in the sand patches of sheltered bays of Rottnest.

Most of the animals that live in seagrass meadows do not eat the seagrass itself. Rather, they eat the algae that grow on it, or prey on each other. The exception to this is the Green Turtle and Leatherjacket fish which feed directly on seagrass like the Eelgrass.

Threats include; human impact caused by physical damage from dredging, anchors and motors, pollution and increased nutrient levels in water from incorrect sewage disposal. Natural threats from storm damage and reductions in light from the eutrophication (breakdown of nutrients) process.

Where you can find a Eelgrass

Conservation Status

Listed as Near Threatened under ICUN (2014). Some parts of Rottnest’ seagrass meadows are included the Marine Sanctuary Zones shown in the Rottnest Island Marine Management Strategy 2007.
  • Extinct
  • Extinct in Wild
  • Critically Endangered
  • Endangered
  • Vulnerable
  • Near Threatened
  • Least Concerned

Help keep Rottnest's marine environment healthy

  • Do anchor only in sandy areas of water
  • Do snorkel and enjoy the marine environment
  • Do take litter with you or use bins provided