white·fish 
(wītfĭsh′, hwīt-)
(wītfĭsh′, hwīt-)n. pl. whitefish or white·fish·es
1.
a. Any of various freshwater salmonid food fishes of the genera Coregonus and Prosopium chiefly of North America, having a generally white or silvery color.
b. Any of various similar or related fishes, such as the lake herring, whiting, or menhaden.
2. See beluga.