| smolt | <marine biology> Juvenile salmonid one or more years old that has undergone physiological changes to cope with a marine environment, the seaward migration stage of an anadromous salmonid. (09 Oct 1997) |
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| smoltification | <marine biology> Suite of physiological, morphological, biochemical and behavioural changes, including development of the silvery colour of adults and a tolerance for seawater, that take place in salmonid parr as they prepare to migrate downstream and enter the sea. (09 Oct 1997) |