1. Tuna Research and Conservation Center, Stanford University, Hopkins Marine Station, Oceanview Boulevard, Pacific Grove, CA 93950, USA.
2. Pfleger Institute of Environmental Research, 1400 North Pacific Street, Oceanside, CA 92054, USA.
3. Monterey Bay Aquarium, 886 Cannery Row, Monterey, CA 93940, USA.
4. National Marine Fisheries Service (NMFS), 75 Virginia Beach Drive, Miami, FL 33149, USA.