Fresh salmon should be firm, and have a deep salmon color. Salmon meat should have a slight sheen and appear somewhat translucent. It should spring back when touched. Cuts should be smooth, without obvious gaps. (Gaps and separations in the muscle fibers are a sign of old fish.) Packages should be airtight, with no visible liquid. Salmon’s fish odor should be mild, fresh, and pleasant. If it smells fishy, keep looking. Whenever possible, choose wild caught salmon over farmed salmon. The health benefits of wild-caught salmon are well-documented.