抄録
The attractivity of sugars and their related compounds for the oriental weatherfish Misgurnus anguillicaudatus was tested by behavioral experiments in a laboratory test tank. The attractivity was evaluated by an attraction index a (abbreviated to A. I. a). A. I. a was estimated by the method shown in a previous paper. Of the compounds tested (six monosaccharides, three disaccharides, six sugar alcohols, six glycosides, and two artificial sweeteners), the following were found to be active: fructose, lactose, sucrose, erythritol, maltitol (200mM each), glycyrrhizin and all the other glycosides, saccharin, and aspartame (33mM each). Of these, fructose, glycyrrhizin, aspartame and rebaudioside, especially the last, showed a high attractivity. The attractivity of rebaudioside (8-33mM) and fructose (50-200mM) increased as their concentrations increased.
