Sound production by Simochromis diagramma (Günther) (Pisces, Cichlidae).
Two types of sounds produced by the cichlid fish Simochromis diagramma, are recorded and analysed. A br-r-r sound, with a main frequency of 200 Hz and a chewing sound with a main frequency of 6,000-10,000 Hz are produced during threatening; the former sound can also be heard during quivering. No sound was recorded with fighting or anxious fishes.
D000374:Aggression; D000818:Animals; D004435:Eating; D005399:Fishes / Q000502:physiology*; D006801:Humans; D012726:Sexual Behavior, Animal; D014828:Vocalization, Animal