Download Botrylloides giganteum (Sea squirt)

This organism has been found in parts of Whangarei and Auckland harbours. B. giganteum moves location and spreads by attaching itself to vessel hulls and niche areas. Owners of vessels moored in Auckland and Whangarei harbours, especially the Marsden Cove marina, need to ensure their vessel hulls and niche areas (i.e. underwater fittings such as water intakes and outlets, propeller shaft, sonar tubes, transducers) are clean and free of fouling growth and the hull well coated in antifouling paint.