Bulletin of the Hiroshima University Museum Issue 9
2017-12-25 発行

糞分析を用いたオオサンショウウオ幼生の食性に関する研究

A study of food habits of the larvae of the Japanese giant salamander Andrias japonicus using fecal analysis
Kodama, Atsuya
Nakamura, Toranosuke
Kambayashi, Chiaki
file
abstract
We conducted fecal analysis of the larvae of the Japanese giant salamander Andrias japonicus and environmental analysis to reveal its food habits. In fecal analysis, Ephemeroptera and Plecoptera larvae were observed as the most dominant preys. Choroterpes sp. was the dominant species in Ephemeroptera. The dominant prey species emerge from March to May and it causes a decrease in prey species; i.e., larvae are considered to flow down to search for prey species in a wider area. Food habits are also suggested to change with increase in larvae body size.
description
本研究はJSPS科研費 JP26870400, JP17K01209の助成を受けたものです。
subject
オオサンショウウオ
幼生
糞分析
食性
水生昆虫
Andrias japonicus
larvae
fecal analysis
food habit
aquatic insect
rights
Copyright (c) 2017 広島大学総合博物館 Hiroshima University Museum