抄録
Ecological studies of mycelial fungi were carried out in the Goshikinuma Lake Group of Volcano Bandai, Fukushima Prefecture, Japan. The lake waters contain large amounts of mineral elements and show strong acidity. The mycelial fungi were counted to be 1500〜3000/l in water and 150〜2000/g in bottom muds. The differences in the amounts of the fungi were observed between acidotrophic and harmonic lakes. The genus Penicillium is dominating both in waters and muds. The vertical distribution of the fungi in water has correlation with that of dissolved oxygen. The fungi are distributed mostly in epilimnion.
