Species Regional Summary
Undaria pinnatifida
None ( NZ-V )

Invasion History Vectors Impacts References

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 ImpactAesthetic
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).
 

References

Full Reference List for Undaria pinnatifida

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