Figure 1.
Sketch of an observation area in Lake Tanganyika, Burundi, Africa. Solid dots are grid stakes spaced ~50 cm and labelled (1–4; A–D) for identification. Circles represent spawning pit locations of dominant males. Lighter coloured outlines circumscribe the territories of individuals. Nondominant males and females school near the territorial area. (Based on Fernald & Hirata, 1977)