Bulletin of the Hiroshima University Museum Issue 5
2013-12-25 発行

東広島市豊栄町に生息する国の特別天然記念物オオサンショウウオの保全に向けた実践的研究 <論文>

Practical Study for Conservation of Giant Salamander Andrias japonicus in Toyosaka, Higashi-Hiroshima, Japan <Article>
Yamasaki, Hiromi
Tsuchioka, Kenta
Ueda, Susumu
Takamatsu, Tetsuo
Sato, Katsunori
Kuwabara, Kazushi
file
abstract
The giant salamander Andrias japonicas, which is endemic to Japan, is ranked as vulnerable. It is designated as a national special natural monument. Information on the giant salamander in Higashi-Hiroshima city is extremely scarce. To determine the current habitat of A. japonicas, we surveyed the Mukunashi River including areas where the giant salamander had lived in the past. Our surveys did find 21 adults and 10 larvae of A. japonicas within a two year period (from 2011 to 2013). However, we did not discover any young individuals of total length of 50 mm - 600 mm. This suggests that larval recruitment is not successful. This paper specifically reports that a critical situation exists for the giant salamander in the Mukunashi River in Higashi-Hiroshima City. And the publicity work aiming at conservation and its result are also reported.
subject
オオサンショウウオ
両生類
天然記念物
保全
東広島市
Andrias japonicas
amphibians
natural monument
conservation
Higashi-Hiroshima City
SelfDOI
rights
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