A new database is being developed to study Yukon salmon, with a focus on chinook and chum species. The health of Yukon salmon populations is a concern, with some studies suggesting declines in certain areas, such as the Kluane chum salmon, and high levels of pollutants like DDT found in some fish. Efforts to protect and monitor Yukon salmon are underway, with advocates calling for increased federal funding and new restrictions being implemented to help with recovery.