Algae: Friend or foe?
While we often think of algae as being a bright
green growth in a nutrient solution or on
substrate surfaces, the huge number of
algal species means their appearance can
be quite diverse. Algae can range in color
from lime green, to a bubbly black, to red,
to brown. These organisms might appear as
long stringy filaments flowing in the current
or as dense fur on the reservoir and growing channel surfaces. On growing media,
algae might appear as a green stain on the
surface of a substrate, or as thick, gelatinous
slime un