ID 6019
タイトルヨミ
ナミウズムシ Dugesia japonica コタイグン ノ セイタイガクテキ チョウサ
タイトル別表記
Ecological studies on the natural population of Japanese fresh-water planaria, Dugesia japonica(Dugℯs)
著者
恩藤 芳典 生物学教室
井上 宣明
抄録
1. The natural population of Dugesia japonica was examined both in a mountain stream at Higo-dani vallay and in a land stream at Shinfukuro-gawa River, Tottori City, during the period from March to December in 1962, at monthly intervals. 2. Seasonal changes in the population of Dngesia japonica were recorded. The population density sharply increases in the period from early March to July, but it decreases in August. However, the dens-ity in each population increases slightly in the period from October to early Nobember. 3. The population density is always large at downstreams ( in the case of Higo-dani valley) or stations at stream center ( in the case of Shin-fukuro-gawa River), whereas the river bed is composed of unsettled stones or pebbles. 4. Seasonal changes in the microdistribution at natural habitat were studied in 4 stations at downstream of Shin-fukuro-gawa River from March to November in 1962. In the period from March to June, flatwo-rms live on each station, but in July and August almost all of the flatworms live on the north side of river and there are none present on the south side whereas the water is shallow. Again in early times of October, they are found out on each station.
出版者
鳥取大学学芸学部
資料タイプ
紀要論文
ISSN
04935608
書誌ID
AN00174530
掲載誌名
鳥取大学学芸学部研究報告. 自然科学
最新掲載誌名
鳥取大学教育学部研究報告. 自然科学
16
1
開始ページ
65
終了ページ
74
発行日
1965-07-30
著者版フラグ
その他
著作権表記
注があるものを除き、この著作物は日本国著作権法により保護されています。 / This work is protected under Japanese Copyright Law unless otherwise noted.
掲載情報
鳥取大学学芸学部研究報告. 自然科学. 1965,16, 65-74
部局名
地域学部・地域学研究科
言語
日本語