An underwater instrument named Gretel is looking for salmon in the Gulf of Alaska.
The instrument, called a glider because of how it flies through the water, is operated
by UAF’s College of Fisheries and Ocean Sciences.
For this mission, Gretel was launched on Feb. 12 from CFOS’ coastal research vessel
Nanuq in Resurrection Bay to help map the distribution of Pacific salmon and their
prey during the winter. Its journey can be tracked in near real time on the 2022 Pan-Pacific Winter High Seas Expedition website, along with vessel-based surveys that are part of the project.