Salmon. (Salmo Salar)

 

 Salmon are especially common in the rivers of the south, south-west, north and north-east of Iceland, but are rarer in the West Fjords and east of the country.

Salmon spawn in the autumn (October–November) in running water. A large number of salmon die after spawning but those that survive the winter in the rivers migrate to the sea the following spring and are subsequently known as large salmon.

Salmon eggs hatch out in the rivers in the spring following the spawning. Initially the fry receive nourishment from a yolk sac attached to their stomach and are known as alevins. The juvenile fish or parr spend several years maturing in the rivers (commonly three to four years in Icelandic rivers) before they are ready to migrate to the sea. At this point they undergo major physiological changes and become known as smolts. The salmon spend one to two years in the sea near Iceland where the feeding grounds are so rich that an individual fish can increase its weight a hundredfold in a single year.