blue-green algae get their energy from carbohydrate molecules.
blue-green algae get their energy from carbohydrate molecules.
where do blue-green algae get their energy from?
carbohydrate molecules
a few other organisms rely on green algae to conduct photosynthesis for them. the chloroplasts in euglenids and chlorarachniophytes were acquired from ingested green algae, and in the latter retain a nucleomorph (vestigial nucleus). green algae are also found symbiotically in the ciliate "paramecium", and in "hydra viridissima" and in flatworms. some species of green algae, particularly of genera "trebouxia" of the class "trebouxiophyceae" and "trentepohlia" (class ulvophyceae), can be found in symbiotic associations with fungi to form lichens. in general the fungal species that partner in lichens cannot live on their own, while the algal species is often found living in nature without the fungus. "trentepohlia" is a filamentous green alga that can live independently on humid soil, rocks or tree bark or form the photosymbiont in lichens of the family graphidaceae. also the macroalga prasiola calophylla (trebouxiophyceae) is terrestrial, and
green algae
in the last 30 years lake winnipeg has experienced a steady surge of blue-green algae growth and although algae grows naturally in the lake, excessive blue-green algae blooms are caused by high ratio levels of nitrogen and phosphorus draining into the lake via rivers and surface runoff. up to five and a half million people rely on the health of lake winnipeg. the lake is an economical powerhouse that supports a $100 million a year tourism industry and a $25 million a year fishing industry. healthy algae populations play an important role in keeping lake winnipeg's ecological systems balanced. green algae provides food for zooplankton, which are then eaten by larger fish in the lake. however the toxins that blue-green algae release can destroy fresh water ecosystems and can be dangerous for humans and other species. very high levels of the algae toxin microcystin closed victoria beach off from the public in the summer of 2003. grand beach and other surrounding settlements along the lake are often closed for a short time during summer months due to e. coli and algae-toxin related threats. immense algae blooms have appeared in the northern part of lake winnipeg in the last decade with hundreds of square kilometers of the lake covered with a thick toxic layer of blue-green algae. local residents in surrounding communities say the blue-green algae is well known for creating deadly water conditions in prairie dugouts and have been known to even kill livestock. commercial and aboriginal fishermen on the lake often find their nets temporarily disabled during the summer months because of the thick algae conditions. the lake winnipeg algae blooms are considered the worst algae problem of any large freshwater lake in the world.
lake winnipeg algae threat