id author title date pages extension mime words sentence flesch summary cache txt v979v12184k John Dana Rothlisberger Human-mediated dispersal of aquatic nonindigenous species: impacts and interventions 2009 .txt text/plain 629 23 37 I first investigate the pathways by which aquatic NIS are introduced to the GL to learn if introduction pathway is related to where species originate and how likely they are to have spread beyond the GL basin. Given the importance of ballast water release in bringing novel species to the GL, I use a novel technique to estimate the economic impacts in the region of ecological changes caused by populations of aquatic NIS introduced by this pathway. cache/v979v12184k.txt txt/v979v12184k.txt