Abstract
Investigation of the floristic composition of aquatic plants (except for emergent plants) in Lake Biwa and 17 selected surrounding water bodies was done from shore in 1982. A total of 22 and 13 species were found in Lake Biwa and in the surrounding water bodies, respectively. The species found with a high frequency were Elodea nuttallii (Planch.) St. John, Egeria densa Planch. and Vallisneria biwaensis (Miki) Ohwi in Lake Biwa, and E. nuttallii, Trapa spp. and Spirodela polyrhiza (Linn.) Schleid. with Lemna sp. in the surrounding water bodies. Average number of species found in a surrounding water body was 2.9 in summer 1982, mostly including an alien plant, E. nuttallii (about 75% frequency).
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Schedule a callMore From: Japanese Journal of Limnology (Rikusuigaku Zasshi)
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