Salmon run plankton. At this point the baby salmon are called "fry". At the end of the summer the fry develop into juvenile fish called "parr". Parr feed on small invertebrates and are camouflaged with a pattern of spots and vertical bars. They remain in this stage for up to three years. As they approach the time when they are ready to migrate out to the sea the parr lose their camouflage bars and undergo a process of physiological changes which allows them to survive the shift from freshwater to saltwater. At this point salmon are called "smolt". Smolt spend time in
Salmon as food and boneless canned salmon is also available. Raw salmon flesh may contain "Anisakis" nematodes, marine parasites that cause Anisakiasis. Before the availability of refrigeration, Japan did not consume raw salmon. Salmon and salmon roe have only recently come into use in making sashimi (raw fish) and sushi, with the introduction of parasite-free Norwegian salmon in the late 1980s. Ordinary types of cooked salmon contain 500–1500 mg DHA and 300–1000 mg EPA (two similar species of fatty acids) per 100 grams Unlike most common farmed fish, Salmon bones are not easy to notice in the mouth because they are usually quite