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- Title
Feeding behavior of leaf-like juveniles of the round batfish Platax orbicularis (Ephippidae) on reefs of Kuchierabu-jima Island, southern Japan.
- Authors
Barros, Breno; Sakai, Yoichi; Hashimoto, Hiroaki; Gushima, Kenji
- Abstract
Feeding behavior of juvenile batfish Platax orbicularis, which presents a mimic state resembling a fallen leaf drifting on the water surface, were surveyed on reefs off Kuchierabu-jima Island, southern Japan. The fish consistently showed drifting swimming patterns on the surface during daylight hours, and fed in a picking–feeding manner on algae covering floating materials or substrates near the water surface. The fish drastically switched to planktivory during the night as they actively hunted free zooplanktonic particles through combined ram and suction feeding manners. Stomach content analysis supported that the fish adopted different feeding tactics, targeting different food items between the two diel periods. Even without an abrupt change of habitat use, due to its mimic state, juveniles of P. orbicularis explore different preys according to their daily activities.
- Subjects
ANIMAL feeding behavior; FISH behavior; OGCOCEPHALIDAE; EPHIPPIDAE; ALGAE; HABITATS
- Publication
Journal of Ethology, 2008, Vol 26, Issue 2, p287
- ISSN
0289-0771
- Publication type
Article
- DOI
10.1007/s10164-007-0066-8