Nitrogen sources to the giant kelp, Macrocystis pyrifera, determined using natural abundance stable isotopes

Natalie Dornan, University of California Santa Barbara, Ecology, Evolution, and Marine Biology, Santa Barbara, United States, Julie Granger, University of Connecticut, Marine Sciences, Groton, United States, Robert J. Miller, University of California, Marine Science Institute, Santa Barbara, United States and Alyson E Santoro, University of California Santa Barbara, Department of Ecology, Evolution, and Marine Biology, Santa Barbara, United States