Fig. 6. Relationships between (A) ram and (B) suction distance and mouth diameter (gape at tcapture) when feeding on guppies. Values are means for each species in the study. The regression between ram distance (r2=0.72, P=0.016) and gape distance is significant, but that between suction distance and gape distance is not (r2=0.06, P=0.65). Species are as follows: (
) Petenia splendida; (
) Cichla ocellaris; (
) Astronotus ocellatus; (
) Crenicichla geayi; (
) Cichlasoma minckleyi; (
) Heros severus; (e) Cyprichromis leptosoma.
