freshwater fish
US /ˈfreʃwɑːtər fɪʃ/
UK /ˈfreʃwɑːtər fɪʃ/

1.
pesce d'acqua dolce
fish that live in fresh water, such as rivers and lakes, rather than in the sea
:
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Many anglers enjoy catching freshwater fish like trout and bass.
Molti pescatori amano pescare pesci d'acqua dolce come trote e persici.
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The aquarium has a diverse collection of freshwater fish.
L'acquario ha una collezione diversificata di pesci d'acqua dolce.