Jacob Linsky, United States, Nicole Wilson, University of California Santa Cruz, United States, David Cade, Stanford University, Hopkins Marine Station, Department of Biology, Pacific Grove, CA, United States, Jeremy A Goldbogen, Hopkins Marine Station/ Stanford University, Pacific Grove, CA, United States, David W Johnston, Duke University, Duke University Marine Lab, Beaufort, NC, United States and Ari S Friedlaender, University of California Santa Cruz, Institute of Marine Science, Santa Cruz, CA, United States