Studies on the feeding attractants for fishes and shells. XIII Feeding attraction activities of nucleic acid-related compounds for abalone, oriental weatherfish and yellowtail.

Abstract

The feeding attraction activities as single and as combination of twenty-six nucleic acid-related compounds were behaviorally and statistically investigated on young abalone Haliotis discus, adult oriental weatherfish Misqurunus anguillicaudatus and juvenile yellowtail Seriola quinqueradiata. As a single compound, the activities for the abalone, the oriental weatherfish and the yellowtail were high in cytosine, xanthine and adenosine-5'-monophosphate (AMP), adenine, guanosine and guanine-5'-monophosphate (GMP), and adenine, cytosine, guanine, AMP, 2'-deoxyguanine-5'-monophosphate (dGMP) and uridine-5'-monophosphate (UMP), respectively. In this context, it was clarified that pyrimidine and purine bases, and nucleoside in addition to nucleotides were potent chemoattractants although the effective compounds have a wide difference among the test animals. Among the combination of the effective compounds, the activities for all the test animals became higher in the order, two, three and/or four combination. Such a finding showed that the test animals were strongly attracted by the collaborative effect rather than the single one.