Photo: NIWA

Lake Rotomanu in New Plymouth will be emptied this week to allow scientists to get a full picture of the extent of a freshwater gold clam infestation.

The invasive clam Corbicula fluminea was found in the lake on 8 November, the first discovery in New Zealand outside the Waikato River.

The lake was closed to motorised watercraft days later.

The Taranaki Regional Council said the Lake Rotomanu outlet would be opened 11 December and it would take about four days for the lake to drain.

During this time the fish population would be harvested in partnership with local hapΕ«, who

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