F. BIOLOGICAL FEATURES F2. FAUNA << Zooplankton >> Ploesoma hudsoni, P. truncaturm, Bosminopsis deitersi, Bosmina longirostris (8) << Benthos >> Chironomus fujitertius, Glyptotendipes tokunagai, Pentapedilum sordens, Tanytarsus oyamai (3, 9) << Fish >> Hypomessus olidus, Cyprinus carpio, Carassius langsdorfi, Anguilla japonica, Zacco platypus, Tribolodon hakonensis hakonensis (10)