Hasselman, Daniel J., Richard A. Hinrichsen, Barbara A. Shields, and Curtis C. Ebbesmeyer. "American shad of the Pacific Coast: a harmful invasive species or benign introduction?" Fisheries 37 (2012): p.115-122.

Hasselman, Daniel J., Richard A. Hinrichsen, Barbara A. Shields, and Curtis C. Ebbesmeyer. "The rapid establishment, dispersal, and increased abundance of invasive American shad in the Pacific." Fisheries 37 (2012): p.103-114.