Dans les lacs, la truite s'adapte aux changements climatiques, selon une étude
(French-language article) « La truite réagit rapidement aux changements de la température de l'eau. Aussitôt que la température devient trop élevée, le poisson quitte les eaux peu profondes, et biologiquement plus productives pour s'aventurer dans les parties les plus profondes du lac où la nourriture se fait plus rare, explique Matthew Guzzo. Et lorsqu'un prédateur de cette envergure est contraint de changer de régime, cela a des conséquences non seulement sur lui, mais sur toute la chaîne alimentaire. »
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