- Volvox is commonly
found in freshwater ponds
- and lakes around the world, and sometimes
forms blooms in warmer weather. Volvox aureus is perhaps
the most common species. This and ten other species have been
found in the United States.
- Volvox often
migrates vertically in the water column, presumably due to its
dependency on high levels of phosphorus for growth. The colonies
swim nightly to depths of nearly 20 m to obtain this vital nutrient
and then return to surface waters during the day to maximize
their intake of the light energy needed for photosynthesis.
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