Vincent de Beauvais [circa 1190-1264 CE] (Speculum naturale, Book 17.78): The perch is a river fish of various colors, very fast in its movement, armed with sharp and very rough scales and fins, with which it also defends itself against larger fish, lest they attack it as predators. It is especially suitable for food, above other river fish and weak stagnant fish. - [Badke translation/paraphrase]