noun (plural same or blackfishes)
1any of a number of dark-colored fish, in particular.
- an open-ocean fish related to the perches (genera Centrolophus and Schedophilus, family Centrolophidae), in particular the large and widespread C. niger. (Alaska blackfish) a small fish occurring along the Arctic coasts of Alaska and Siberia, noted for its ability to withstand freezing (Dallia pectoralis, family Umbridae). (river blackfish) a large fish of Australian rivers (Gadopsis marmoratus, family Gadopsidae). a salmon just after spawning.