ATTRACTION ACTIVITIES OF TERRESTRIAL VEGETABLE EXTRACTS FOR AQUATIC ANIMALS

Attraction activities of terrestrial vegetables for black abalone Hali otis discus, oriental weatherfish Misgurnus anguillicaudatus, and yell owtail Seriola quinqueradiata were estimated by behavioral experiments in a laboratory test tank as well as an attraction index a for both a balone and oriental weatherfish, and another attraction index gr for y ellowtail. The indexes a and gr were estimated by a method described i n previous papers. Most of the vegetables tested (39 breeds from 36 ki nds of vegetables) showed, to some extent, attraction activities for t hese three animals tested. The highest activity was observed in soybea n Glycine max for black abalone, cabbage Brassica oleracea var. capita ta (Nakawase 2) for weatherfish, and onion Allium cepa for yellowtail. The attraction activities of these vegetables clearly depended on the concentrations used.