Eutrophication, toxic cyanobacteria and cyanotoxins: when ecosystems cry for help

  title={Eutrophication, toxic cyanobacteria and cyanotoxins: when ecosystems cry for help},
  author={Vitor M. Vasconcelos},
Eutrophication of freshwater resources has been studied worldwide and its consequences are of concern especially in waters used for recreation or drinking. The occurrence of cyanobacteria blooms is nowadays much better documented and among the major impacts we may point out the decrease in water transparency and oxygen levels, the production of off-flavours and the production of toxins. Among the most common toxins, microcystins, anatoxin-a and saxitoxins are the most common in Portugal. A… 

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