Definition
Salmonidae is the family of ray-finned fish that includes salmon, trout, char, graylings, and whitefishes. They are generally found in fresh water (though salmon migrate to the ocean). Many species are important for sport fishing and commercial fisheries. Salmonids are characterized by their streamlined bodies and fleshy adipose fin. They are anadromous, meaning they migrate upstream to spawn. Think of them as the 'royalty' of the freshwater world.