Published Dec 10. 2006 - 9 years ago

Didymo (didymosphenia gem...

Didymo (didymosphenia geminata) is a freshwater algae that forms massive blooms on beds of streams or lake edges that have some wave action. Introduced from Nth America. Can choke out insect life.
Some rivers in South Island, New Zealand.
Submitted by:
Dave Cook

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