Invasive species as a new food source: does a nudibranch predator prefer eating an invasive bryozoan? Submitted by Emily-Grason on Fri, Oct 8, 2010 Pratt MC, Squirrell JM, Grason EW, Sweedler JV. 2007. Invasive species as a new food source: does a nudibranch predator prefer eating an invasive bryozoan? Biological Invasions. 9(6):645-655. Read more about Invasive species as a new food source: does a nudibranch predator prefer eating an invasive bryozoan? Google Scholar