1. Danish Institute for Fisheries Research, Department of Seafood Research, Søltofts Plads, c/o Technical University of Denmark, Bldg. 221, DK-2800 Kgs. Lyngby, Denmark
2. California Institute of Technology, Jet Propulsion Laboratory, Biotechnology and Planetary Protection Group, 89-2, Oak Grove Dr., Pasadena, California 91109
3. National Research Institute of Fisheries Science, Fisheries Research Agency, Yokohama 236-8648, Japan