1. Département de Biologie and Centre d'études nordiques; Université Laval; Québec; QC; Canada
2. Department of Biology; Concordia University; Montreal; QC; Canada
3. Department of Animal and Aquacultural Sciences; Norwegian University of Life Sciences; Ås; Norway
4. Department of Basic Sciences and Aquatic Medicine; Norwegian School of Veterinary Science; Oslo; Norway
5. Reindeer Research Station; Finnish Game and Fisheries Research Institute; 99910; Kaamanen; Finland