Abstract and Summary
We compared the ontogeny of feeding in two centrarchid species and hypothesised that the ontogeny of early feeding in the black crappie, Pomoxis nigromaculatus, would differ from that of the smallmouth bass, Micropterus dolomieui, and that the smaller black crappie fry would perform certain of the feeding MAPs (modal action patterns) at a higher frequency and for a longer period of time than the larger smallmouth bass fry. Under laboratory conditions crappie fry performed significantly more Fixates, Lunges, and Snaps than smallmouth fry. These three MAPs also remained in the feeding repertoire of the crappie two weeks longer than in the smallmouth repertoire. The size of the young fish at the onset of exogenous feeding influenced their early feeding behaviour.