Photo: LDR / Ben Fraser

Cleaning up Rotorua's massive lake weed wash-up late last year cost local councils a combined $133,443.

A review into funding for lake weed control is now underway, with local leaders saying more needs to be done to prevent a repeat event.

A bed of invasive lake weed, roughly the size of Rotorua's CBD, lies beneath Lake Rotorua. On 12 November, bad weather dislodged large amounts, leaving about 780 tonnes of material to be cleared from the lake surface.

The decaying weed produced strong odours affecting nearby businesses, while low oxygen levels in the water killed hundreds of fish.

Bay of Plenty Regional Council began skimming the weed on 14 November, wi

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