各種人工飼料投与時におけるOncomelaniaの摂食活動 : (Oncomelaniaの食性に関する研究III)

概要

論文の詳細を見る
Utilizing the mouth opening reaction of On comelania, its food taking activity was examined with feeding by various artificial materials. From the results of experiments it was revealed that the frequency of the food taking activity of Oncomelania depended upon the size of the particles of the feeding materials. When the size of the feeding materials was decreased the food taking activity appeared to be more accelerated. Generally speaking when fed with feeding materials of carbohydrate nature such as boiled rice, rice powder (glutinate and non glutinate) and wheat powder the food taking activity of snails became more vigorous. Chlorophyceae, diatomes and the soil of the habitat were also taken by them relatively good. The shell of the egg, dried small sardines and beancard refuses, however, were taken in high frequency when they were previously prepared as a fine powder. The food taking activity on liquid substances appeared to be closely related with their concentration.
日本生態学会の論文
1959-04-01