It's extensively recognized that freshwater biodiversity and territories are increasingly being affected by human activities. Available data with 123 freshwater beast species recorded as extinct since 1900. All estimates of biodiversity loss are conservative considering the lack of knowledge for multiple groups of species and for extended areas in the tropics and high latitudes. Accordingly, the number of threatened species is expected to be much higher. In addition to species loss, also habitat declination, eutrophication and species preface affect freshwater bodies worldwide. Despite the signs of speedy and destructive changes in freshwater ecosystems, freshwater biodiversity remains of low precedence in global conservation initiatives carried by governmental and intergovernmental association.
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