LHPrism Status
Tier 1 - Threat
Species Type
- Aquatic Invasives
- Algae & Cyanobacteria
Habitat
Lake or Pond
Key Characteristics
Color
Tan to dark brown with white "tails"
Appearance
Forms dense mats at the bottom of cool ponds or streams
Impacts of this species
Smothers plants and blocks nutrients from being produced.
LHPRISM Notes
Didymo is a freshwater diatom that attaches to stones and plants. Although it may look slimy, it feels like a wet cotton wool. Only a single cell needs to be transported for the algae to spread.
Best Practices