Short-term foraging patterns of individual cornetfish, Fistularia commersonii, based on stomach content analysis |
| |
Authors: | Naoko Takeuchi Hiroaki Hashimoto Kenji Gushima |
| |
Institution: | (1) Laboratory of Fisheries Biology, Faculty of Applied Biological Science, Hiroshima University, 1-4-4 Kagamiyama, Higashihiroshima, Hiroshima, Japan (e-mail: takeuti@hiroshima-u.ac.jp), JP |
| |
Abstract: | Stomach contents of 75 specimens of the cornetfish Fistularia commersonii, collected in shallow water off Kuchinoerabu-jima Island, southern Japan were analyzed. Many fish contained multiple prey.
The prey were mostly fish, grouped into two types, pelagic and reef fishes. The size of prey increased as the size of F. commersonii increased. All the small individuals (<50 cm SL) had fed on only small reef fish. However, most of the large individuals
(>50 cm SL) had fed on either prey type. Both pelagic and reef fishes usually occurred simultaneously in shallow water, suggesting
that most of the large cornetfish may selectively hunt either type of prey.
Received: February 27, 2001 / Revised: September 11, 2001 / Accepted: October 10, 2001 |
| |
Keywords: | Prey Coral reef fish Stomach contents Piscivore Fistulariidae |
本文献已被 SpringerLink 等数据库收录! |
|