1. CICOES, University of Washington and Northwest Fisheries Science Center, National Marine Fisheries Service Seattle WA USA
2. Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Científicas (CSIC) Madrid Spain
3. Conservation Biology Division Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration Seattle Washington USA
4. Departamento de Biología, Facultad de Ciencias Universidad Autónoma de Madrid Madrid Spain