Salinity data for samples described in Drake and Lodge (2007).

Salinity data not available for all samples. Blank records indicate no data. SAMPLE_ID number is an identifier for each sample. All identifiers begin with prefix T (for "tank") followed by one or two digits indicating the ship number for each year, followed by two digits (00, 01, or 02) indicating the year of the collection. An alphabetaical suffix identifies different samples when more than one sample was collected from a ship.

Drake, J.M., & D.M. Lodge. 2007. Rate of species introductions in the Great Lakes via ships' ballast water and sediments. Canadian Journal of Fisheries and Aquatic Sciences 64:530-538.