Origin and Distribution

Examples of marine invasive species introduced via the shipping industry
ORTEP Association
www.ortepa.org/pages/ei19pt5.htm

Pathways of Aquatic Introductions
Washington Sea Grant
www.wsg.washington.edu/communications/online/bioinvasions/bioinvasions.pdf

Marine invaders
Oregon Sea Grant
http://seagrant.oregonstate.edu/themes/invasives/index.html

A Guide to Least-Wanted Aquatic Organisms of the Pacific Northwest
Washtington Sea Grant
http://www.wsg.washington.edu/mas/pdfs/leastwanted.pdf

100 of the World's Worst Invasive Alien Species
Global Invasive Species Database
http://www.issg.org/booklet.pdf

Guide to the Exotic Species of San Francisco Bay
San Francisco Estuary Institute
http://www.exoticsguide.org/

Nonindigenous Aquatic Mammals in Freshwater Systems
Center for Aquatic and Invasive Plants, University of Florida
http://aquat1.ifas.ufl.edu/mcmasys.html

New Zealand Mudsnails in the Western USA
Montana State University
http://www.esg.montana.edu/aim/mollusca/nzms/status.html