Canadian-origin salmon: Salmon produced in Canadian streams. In Yukon transboundary rivers, Canadian-origin salmon must swim through the American section of the river before reaching their natal stream in Canadian waters to spawn.

Escapement: Spawning escapement refers to “the portion of an adult returning salmon run that spawns on spawning grounds by avoiding harvest in any fisheries – including subsistence, First Nation, commercial, personal use, domestic and sport/recreational.”^[1] Escapement numbers can be used to establish stock status and the number of salmon potentially available for harvest.

Interception: Salmon migrate long distances to complete their lifecycles and can cross international borders. As a result, Canada and the United States (U.S.) have a common challenge: salmon produced (i.e., spawned) in one country’s waters can be caught by fishers in the other country. The concept of “interception” is therefore defined as the “harvest of one country’s salmon by another’s [fishers].”^[2]