Algaes
are the lowest member of the plant family found within ponds. Some are
easily seen with the naked eye and form mats which at times of profusion
can float on the surface. Other are microscopic and can only be noticed
when in profusion as they will turn the water green. There are others
still that are structured similarly to vascular plants and can be mistaken
for them by the untrained eye.
The
Blue-Green Algaes are the simplest normally found within the pond. There
is much conjecture as to whether they are actually an algae or really
a bacteria. Whichever they may be, they are not a desirable algae to
have present, and they normally denote an imbalance within the pond's
cycle.
Blanket weed is the most common form of easily identifiable algae found
in ponds. Its hair-like consistency is often found clinging to submerged
plants and growing from the banks. The picture shows blanket weed that
has floated to the surface. This it does by trapping air bubbles within
its structure that are produced during photosynthesis. It is not a welcome
addition to most ponds and many forms of treatment have been used in
attempts to eradicate it.
The
Red Algaes are most commonly found in brackish and salt water. Plants
can be simple or branched and normally not a problem algae, being only
found were conditions are favorable. The picture below shows a freshwater
example of a reddish algae bloom which lasted just a few days,in a small
pond .No identification was undertaken.

