@article{oai:ir.kagoshima-u.ac.jp:00005284, author = {KAKINUMA, Yoshiko and HISANAGA, Kazuhiko and TSUKAHARA, Junzo and TABATA, Michihiro}, journal = {南太平洋海域調査研究報告=Occasional papers}, month = {2016-10-28}, note = {Nautilus has been described as a "living fossil" although its life cycle and behavior have not been fully studied in terms of its whole life history. The authors investigated the predatory activity of Nautilus in the laboratory and its ability to detect food when a stimulant is present. Four Nautili were used for this experiment. Their activity was recorded when live shrimp and artificial food in the form of meat extract were provided. Even when in hungry state they showed little activity, but when a stimulant in the form of live shrimp or artificial food was introduced into the water column, their activity increased. In the case of live prawns, they kept searching for prey until they obtained it. However, when meat extract was given, searching activity increased for nearly 5 minutes but later decreased.}, pages = {83--90}, title = {The Predatory Activity of Captured Nautilus belauensis}, volume = {27}, year = {} }