a fresh- or brackish-water fish belonging to the family Cyprinidae. It is an inhabitant of the rivers and streams of Europe north of the Alps as well as in Northern Asia. It is abundant in much of its range, and has also spread to Ireland where it is used as a bait fish. It will grow to a maximum length of 40 cm (1 ft 4 in), a maximum weight of 1 kg (2.2 lb), and may live for up to 16 years.
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Somewhere near at hand, though out of sight, there was a clear, slow-moving stream where dace were swimming in the pools under the willow trees.
George Orwell. 1984 (1949)
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Mores aulici. - I have discovered that a feigned familiarity in great ones is a note of certain usurpation on the less. For great and popular men feign themselves to be servants to others to make those slaves to them. So the fisher provides bait for the trout, roach, dace, &c., that they may be food to him.