Blackrider

All of these high mountain lakes are now inhabited by two morphs of Arctic charr: fish of small body size (so called: 'blackriders') are highly numerous in these lakes and large body size fish (so called: 'wildcaught charrs') which are significantly less numerous.

The lake is inhabited by two morphs of Arctic charr (Salvelinus alpinus); small-bodied “blackriders” are very numerous, whereas larger “wild-caught charrs” are less frequent

To rile their professors, South Carolina students staged 'blackrides,' when they blackened their faces, stole the horses of faculty, and galloped about campus while holding flaming torches. After exhausting a horse and drawing a cheering crowd, a 'blackrider' dismounted and slipped into the midst of his fellows to hide from investigation."