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Toxic algae - Waihopai & Waiau Rivers

Elevated levels of potentially toxic algae in the Waihopai River at Kennington and Waiau River near the Excelsior Creek inflow.

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Undaria Exemption Areas

Under the Southland Regional Pest Management Plan 2019, harbouring Undaria, including having Undaria growing on a vessel’s hull, within the Southland region is prohibited.

Two areas in Murihiku / Southland are exempt from this rule because Undaria was already established at these locations in 2019 when the plan came into effect.

Vessels can enter the Undaria Exemption Areas, but the following requirements must be met when you leave them:

  • vessels must be free of Undaria when they leave the Southern Undaria Exemption Area and the Breaksea Sound Undaria Exemption Area;
  • all marine gear and equipment, including but not limited to lobster pots, mooring lines and dive gear, must be free of Undaria when it leaves the Southern Undaria Exemption Area and the Breaksea Sound Undaria Exemption Area;
  • all onboard residual seawater collected in the Exemption Area must be treated or discarded within the Southern Undaria Exemption Area and the Breaksea Sound Undaria Exemption Area.
map showing where the Undaria Exemption Areas in Southland are located

Important update for the Fiordland Marine Area July 2023

If you operate within the Te Puaitaha / Breaksea Sound - Tamatea / Dusky Sound complex, be aware that Undaria is now established at locations within Bowen Channel and Acheron Passage. These areas are not currently within the Breaksea Sound Undaria Exemption Area, and the Southland Regional Pest Management Plan (2019) prohibition to harbouring Undaria applies. Visit Fiordland Undaria control programme for more information about the work being done to slow its spread.

What else must I know if I am heading into the Fiordland Marine Area?

It's essential to make yourself aware of the rules in the Fiordland Marine Regional Pathway Management Plan. All vessels entering within one nautical mile of the landward boundary of the Fiordland Marine Area are required to hold a Clean Vessel Pass and to comply with the clean vessel, clean gear and residual seawater standards.

You can learn more about the Plan and the Clean Vessel Pass here.

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