胃内容物調査による魚類の食性の型について
1960 年 26 巻 7 号 p. 653-662
詳細
1960 年 26 巻 7 号 p. 653-662
1. The surveyed fishes were classified into four groups, and the piscivorous group was also divided into the particular feeding group.
2. The amounts of food eaten by these fishes were classified into three, A, B and C types, such as plankton feeders, omnivorous and some carnivorous fishes and carnivorous fishes especially piscivorous fishes, and each feeding group belongs to different types.
3. The rate of occurrence of empty stomach is high in the adult fishes and also high in the high food order fishes.
