Document Type

Technical Report

Publication Date



Introduced aquatic organisms -- Oregon -- Columbia River, Introduced aquatic organisms -- Control -- Oregon, Environmental protection -- Columbia River Watershed


Rates of aquatic nonindigenous species (ANS) introductions and their social, economic, and ecological impacts are increasing. Introductions of nonnative marine organisms have increased exponentially over the last two centuries and expenditures on outreach, control, and research exceed millions of dollars per species for several invaders of particular concern to the United States. These trends suggest that major changes are occurring in the freshwater, estuarine, and marine ecosystems of North America, but their magnitude is probably underestimated.


Prepared for the United States Coast Guard and the United States Fish and Wildlife Services

Persistent Identifier

LCRANSFinalReportAppendices.pdf (1092 kB)
Final Technical Report: Appendices