1. NTNU University Museum, Norwegian University of Science and Technology Trondheim Norway
2. NOAA Fisheries Service, Northeast Fisheries Science Center, Atlantic Salmon Ecosystems Research Team Woods Hole Massachusetts USA
3. Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre St. John Newfoundland Canada
4. U.S. Geological Survey Leetown Science Center, Aquatic Ecology Laboratory West Virginia USA
5. Department of BiologyNorwegian University of Science and Technology Trondheim Norway