1. Norwegian Institute for Nature Research; Høgskoleringen 9 NO-7034 Trondheim Norway
2. Fish Ecology and Conservation Physiology Laboratory, Department of Biology; Carleton University; 1125 Colonel By Drive Ottawa ON K1S 5B6 Canada
3. Ocean Tracking Network; Dalhousie University; 1355 Oxford Street Halifax NS B3H 4R2 Canada