@article{oai:kochi.repo.nii.ac.jp:00002092, author = {Yamaoka, Kosaku and Yamamoto, Emi and Taniguchi, Nobuhiko}, journal = {Bulletin of marine sciences and fisheries, Kochi University}, month = {Dec}, note = {application/pdf, Tilting behaviour in hatchery-reared and wild juveniles of red sea bream, Pagrus major, was studied experimentally. The tilting behaviour was enhanced by putting hatchery-reared juveniles under predation pressure, which showed that this predator-induced behaviour was learned. The effect was considered to be retained at least for three hours. Fish exhibiting tilting behaviour just after release into experimental tanks containing young yellowtail were harder to be targets to the attack of predators than non-tilting fish. This suggests that the tilting behaviour might function as a means of predator avoidance. Wild juveniles showed weak tendency toward tilting behaviour under predation pressure and they swam away from yellowtail. Whether an individual tilts or not seems to be due to its career on an exposure to diverse predation pressures.}, pages = {63--72}, title = {Tilting behavior and its learning in juvenile red sea bream, Pagrus major}, volume = {14}, year = {1994} }