Examples include the decline of the sturgeon and the caviar industry in rivers such as the Volga (Russia) and the sharp decline of Mormyridae (an elephant-nosed fish family of Osteoglossiformes) in Lakes Kainji and Volta (both in West Africa), after the inundation of their preferred habitats as a result of dams.    From Wordnik.com.  [Ecosystems and Human Well-being~ Wetlands and Water~ Wetlands and Water~ Ecosystems and Human Well-being] Reference