Testing a model to track fish migrations in polar regions using pop-up satellite archival tags

摘要: The use of pop-up archival satellite tags (PSATs) to geolocate marine fishes in polar regions is challenging due the brevity periods during which there a defined sunrise and sunset. Models using other environmental parameters are thus required supplement geolocation data estimation migratory routes. objective this work was create simple method that would estimate pathways Atlantic salmon (Salmo salar) temperature depth recordings. Validated geolocations from PSATs were used test constrict model. model’s predicted routes within 100 km light-based calculated by tags. By constraining trajectories through geolocations, bias reduced. Sensitivity analyses demonstrated slight alterations location timing start end points did not affect mean route estimates. This management tool can determine primary habitat areas for any surface- or bottom-dwelling species – especially regions, where methods may be impossible.