In addition to toxin producing algae, a number of. freshwater and marine species can be regarded as nuisance algae. These cause problems. in water treatment and deleteriously affect the aesthetics of marine waters. A number of. strategies can be employed to control or remediate eutrophication and algal blooms.
Specific symptoms include. 1  Difficulty walking. 2  Muscle weakness. 3  Speech problems. 4  Involuntary eye movements. 5  Scoliosis (curving of the spine to one side) 6  Heart palpitations, from the heart disease which can happen along with Friedreich's ataxia.
About one in 50,000 people in the United States have Friedreich's ataxia. Most individuals have onset of symptoms of FA between the ages of 5 and 18 years. Adult or late onset FA is less common, <25% of diagnosed individuals, and can occur anytime during adulthood.