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SD Least Wanted.comAquatic invasive Species

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didymo

Origin:

Europe, Asia and parts of North America

Identification:

Didymo is a tan, light brown, and whitish diatom that clumps in strands and feels cottony to the touch. When submerged it looks similar to wet bathroom tissue.

Impacts:

This diatom can form large masses and reduce the primary productivity of the stream. It may be a cause for the decline of trout in some areas of the US.

Range Expansion:

Didymo can attach to waders and other gear and can easily be transported to new areas when fishing multiple streams in the same day.

South Dakota Distribution:
Asian Carp Distribution Map

Keep Aquatic Invasive Species Out of South Dakota's Waters

ALWAYS DO:

NEVER DO:

WHY?

Because these hitchhikers can:

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