Simkanin, Christina, Fofonoff, Paul W., Larson, Kristen, Lambert, Gretchen, Dijkstra, Jennifer A., and Ruiz, Gregory M. 2017. [Dataset] Supplementary Material for: Spatial and temporal dynamics of ascidian invasions in the continental United States and Alaska. [PDF] Distributed by Washington, D.C.: Smithsonian Research Online. https://doi.org/10.5479/data_serc/10088/31952.