@article{oai:ir.kagoshima-u.ac.jp:00002231,
 author = {川村, 軍蔵},
 issue = {1},
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-27},
 note = {Scattered chum bait is very available in line fishing, and it has been defined as the bait to be scattered at the fishing spot to attract the fishes from far to come close to the spot. And up to now only the attracting effect of this bait has been discussed by many fisheries biologists. But the significant effectiveness of the scattered chum bait in line fishing can not be considered to depend only on the attracting factor. The author carried out the tank experiments on the reaction of fish to the extract of food to find out how the scattered chum bait allures fish to the fishing bait sewed to a hook. The results are summarized as follows: 1. The fishes used, spotted mackerel, perch and sweep lips, showed avoiding reaction to the colored sea water introduced into the experimental tank. On the otherhand, when these fishes were exposed to the extract of food, their swimming became very active, and they disrupted the schooling, showing a feeding frenzy. 2. The clear social facilitation was observed in the reaction of spotted mackerel to the extract of food, i.e. the respons of a group of 5 individuals was most active than the other groups of less individuals, when an individual was kept solitary in a tank there was no positive reaction to the extract of food. 3. When in a feeding frenzy these three fishes indiscriminately tried to take any small inedible objects in the water or at the water surface. 4. Furthermore when the sweep lips was exposed to the extract of food, it actively picked the bottom board of the tank even though there was no object on the board. This remarkable behavior was also observed in other bottom fishes in an aquarium. And so the reaction of fish to an extract of food is considered to have close relationship with its feeding habit. 5. From these observations it is concluded that the scattered chum bait evokes very active feeding behavior of fishes; an reaction of an individual enhances that of the schooling companions; the success of line fishing and pole-and-line fishing depends on this activity. When in such a state fishes indiscriminately take any small object in the water and thus are vulnerable to line fishing and pole-and-line fishing.},
 pages = {151--160},
 title = {撒餌に対する魚の反応行動},
 volume = {25},
 year = {}
}