Cardrona River

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Template:Short description Template:Use New Zealand English Template:Use dmy dates Script error: No such module "Infobox".Template:Template otherScript error: No such module "Check for unknown parameters". The Cardrona River is in Otago in the South Island of New Zealand.[1] It is one of the first tributaries of the Clutha River / Mata-Au, which it meets only Script error: No such module "convert". from the latter's origin at the outflow of Lake Wānaka.

The Cardrona flows north for Script error: No such module "convert". down the steep narrow Cardrona Valley. Its headwaters are near New Zealand's highest main road, the Crown Range route.[2] The river runs past the settlement of Cardona and the Cardrona skifield, then south of Wānaka township.

The original name of the river is the Script error: No such module "Lang".. It was a traditional Māori route linking Whakatipu Waimāori (Lake Wakatipu) with lakes Wānaka and Hāwea. Ngāi Tahu recorded Ōrau as a kāinga mahinga kai (food-gathering place) where tuna (eels), pora ('Māori turnip') and weka were gathered.[3]

In 2017, a toxic cyanobacteria phormidium was found in the river after a period of warm temperatures. The public were warned that people and dogs should avoid contact with the water while the algae was present.[4] The Cardrona River is one of several rivers in the Otago region that are known as vulnerable to outbreaks of cyanobacteria.[5]

An environmental DNA analysis in 2023 revealed a previously unknown population of galaxid fish are present in the Cardrona River. The species identified is the Clutha flathead galaxid, which is critically threatened and close to extinction.[6]

In 2024, a group of 50 volunteers removed around Script error: No such module "convert". of rubbish from a section of the river. Further cleanups were planned for other sections of the river.[7]

References

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