biodiversity of nearctic inland water: discovery of the genus heterorotula (porifera, spongillida, spongillidae) in the appalachian mountains, with biogeographical implications and description of new species

HIGHLIGHTS

• who: Renata Manconi from the river water becoming coffee brown in color and emitting a bad odorHot water releases from the mill raised water temperature. For , years there was no treatment of the mill`s effluent. The first effort at treatment occurred in , with the removal of settleable solids (University of Tennessee, ). In , the mill began an effective dioxin control program. Dioxin has not been detected in tested water since , (Coombs et_al, ). In , aquatic snails were re-introduced. The survival and recolonization of these snails led to the formation of the Pigeon River Recovery Project (PRRP) in . . .
  

   

  

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