How long has didymo been present in New Zealand?
Scientists are not certain when didymo first arrived in New Zealand. The first visible blooms were identified in the lower Waiau and Mararoa catchments in October 2004. However, credible retrospective reports indicate didymo was visible in the Mararoa River as early as 2001.
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Didymo Enquiries
MAF Biosecurity New Zealand
PO Box 2526
Wellington
NEW ZEALAND
Phone: 0800 809 966
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