The latest survey of Otago Harbour shows it has not yet
succumbed to the marine pest fanworm.
Because it had been found in Lyttelton's port in 2008, it was
always a worry it could reach Otago, Otago Regional Council
director environmental monitoring and operations Jeff
A recent survey of Otago Harbour by Niwa found marine pests
undaria and Styela clava (clubbed tunicate) but no new pests,
such as the fanworm.
''But we still need to be vigilant.''
As part of that, the council had sent information packs to
holders of mooring permits to encourage them to check their
mooring lines, boat hulls and fishing equipment were not
infected with any marine pests.
The packs included a photographic guide to ensure boat owners
could identify the pests.
Owners of smaller vessels that stayed for longer periods in
various places, especially before going on to Fiordland, had
to be especially careful, as material could grow on the
boats, he said.
''Cruise ships are pretty clean-bottomed vessels, as they are
always on the move.''
The council had also worked with Environment Southland to
develop a marine pests pathways plan for the Fiordland marine
''This plan is likely to have implications for boaties,
commercial fishers and cruise ships leaving from the Otago
Harbour to travel to Fiordland.''