A large, brown, solitary sea squirt with a leathery appearance and wart-like projections. It has a long, club-shaped body and uses a short, tough stalk to attach to hard artificial or natural surfaces.
To help protect our environment:
Most commonly found at depths of less than 25m but has been observed at 40m deep. It is frequently transported as biofouling on vessels and other mobile marine structures.
The Styela sea squirt can multiply rapidly and form dense colonies, competing with native and important filter feeders for space and food. This can disrupt native ecosystems and may impact upon the mauri of the moana. The Styela sea squirt can also add significant maintenance costs to marine structures and vessels through its fouling behaviour.
Before moving your boat or other craft to new locations, make sure the hull, anchor chain and all other equipment on board is clean and free of marine pests or other fouling. Think about where you’re taking on or releasing ballast, bilge or holding tank water, or water in any other container such as chilly bins, to avoid spreading marine pests.