Synopsis
Spawning by the banded butterflyfish,Chaetodon multicinctus (Chaetodontidae) was observed on coral reefs off Kona, Hawaii. These fish occurred in male-female pairs during normal daytime activities, a behavior which is typical for the family. Courtship is also a paired male-female activity. During spawning, however, other individuals (males?) may intrude on the spawning pair. Spawning typically takes place at least a meter or two above the bottom. The spawning position consists of the male below and behind the female with his snout against the female's ventral flank or anal fin area. Intruding individuals may join in when the pair is in position and about to spawn. Intruders line-up against the male in the same position as he is against his female. Underwater photographs are included to illustrate these behaviors.
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Lobel, P.S. Spawning behavior ofChaetodon multicinctus (Chaetodontidae); pairs and intruders. Environ Biol Fish 25, 125–130 (1989). https://doi.org/10.1007/BF00002206
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DOI: https://doi.org/10.1007/BF00002206