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When the mature fish re-enter rivers to spawn, they change in colour and appearance. Some populations of this fish only migrate to large lakes, and are "landlocked", spending their entire lives in freshwater. Such populations are found throughout the range of the species. Unlike Pacific species of salmon, ''S. salar'' is [[iteroparous]], which means it can survive spawning and return to sea to repeat the process again in another year with 5-10% returning to the sea to spawn again. Such individuals can grow to extremely large sizes, although they are rare. The different life stages of the fish are known by many different names in English: [[alevin]], [[spawn (biology)|fry]], [[parr (fish)|parr]] and [[Juvenile fish|smolt]].
Atlantic salmon is considered a very healthy food and one of the fish with a more refined taste in many cultures. As such it features in numerous popular traditional cuisines and can fetch a higher price than some other fish. It has thus long been the target of [[sports fishing|recreational]] and [[commercial fishing]], and this, as well as [[habitat destruction]], has impacted the population in some areas. As a result, the species is the subject of conservation efforts in several countries, which appear to have been somewhat successful since the 2000s. Techniques to farm this species using [[aquaculture|aquacultural]] methods have also been developed, and at present it is farmed in great numbers in many places around the world.{{where?|date=February 2022}} Although this is now a viable alternative to wild-caught fish, farming methods have attracted criticism from environmentalists.<ref>{{
==Nomenclature==
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