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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 3062

Yamamoto Kokichi; [Rotatoria of Sone-numa, a Lagoon of Lake Biwa, with a List of Protozoa]. Jap.J.Limnol. 17(2):112-116, 1955

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38 species of Rotatoria which were collected from a lagoon attaching to Lake Biwa (Sone-numa) were enlisted. The plankton samplings were carried horizontally either in the open water or among the colony of Trapa. Almost all the species collected from the open water were seen among the latter-sample. Despite of comparatively low temperature of the water (15.3~17 degrees C), some austral or warm water rotifers were collected. Various forms of Keratella cochlearis which belong to the so-called "macracantha-typica-tect series" occur red in the lagoon. In addition, 8 species of Protozoa are listed.