Helfrich, Louis A.Neves, Richard J.Parkhurst, James A.2015-07-282015-07-282005-09-01http://hdl.handle.net/10919/54893Discusses reasons for declining aquatic biodiversity and focuses mainly on the issues of habitat loss, introduced species (aquatic exotics), and water pollution; document also includes web links to more information on exotic, invasive species and endangered animals.4 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.FisheriesExtension publicationhttp://pubs.ext.vt.edu/420/420-521/420-521.pdfBiodiversityAquatic organismsInvasive speciesHabitat destructionWater pollution