Invasion
Invasion Description
1st Record: Chatham Islands/Pacific Ocean (on a sunken ship hull 2 km offshore). Eradication of sporophytes, using heat, on the ship's hull was apparently successful (Wotton et al. 2004); http://www.issg.org/database/species/distribution_detail.asp?si=68&di=23309&pc=*
Geographic Extent
Chatham Islands/Pacific Ocean (on a sunken ship hull 2 km offshore). Eradication of sporophytes, using heat, on the ship's hull was apparently successful (Wotton et al. 2004); http://www.issg.org/database/species/distribution_detail.asp?si=68&di=23309&pc=*
Vectors
| Level | Vector |
|---|---|
| Probable | Hull Fouling |
Regional Impacts
| Economic Impact | Aesthetic | |
| A successful effort was made to eradicate U. pinnatifida from the hull of a sunken trawler in the Chatham Islands using heat treatments by divers. The overall cost of this effort was ~3 million $NZ. The marine kelp and reef communities of the Chatham islands are considered to be of high fisheries, ecological, and tourist value (Wotton et al. 2004). | ||