Is the algae...
Are there any pollution sources in the immediate surroundings? (select all that apply)
Can you see evidence of the following water uses? (select all that apply)
What aquatic life is there evidence of? (select all that apply)
Estimate the water flow
Estimate the water level
Water temperature (°C)
Water Quality Secchi Tube (Turbidity).
Gammaridae (Freshwater shrimps)