Coho Salmon jack - Oncorhynchus kisutch This beautiful Coho Salmon jack. Also known as a Silver Salmon jack. The Coho Salmon jack is a skin mount. The Coho Salmon is mounted on a custom carved body and has a custom molded head. A jack salmon is a salmon that comes back to his spawning grounds after two years. Most Coho salmon return after three years. Jack return numbers are used to predict the next years return. This Coho Salmon jack was taken from Whitman lake hatchery (SSRAA) and used for a skin mount.