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Studies on the aquatic oligochaete fauna in Lake Biwa, central Japan. IV. Faunal characteristics in the attached lakes (naiko)Akifumi Ohtaka; Machiko Nishino · 2006
Disappearance of deep profundal zoobenthos in Lake Ikeda, southern Kyushu, Japan, with relation to recent environmental changes in the lakeAkifumi Ohtaka; Machiko Nishino; Tadashi Kobayashi · 2006
New records and distributions of two North American branchiobdellidan species (Annelida: Clitellata) from introduced signal crayfish,Pacifastacus leniusculus,in JapanAkifumi Ohtaka; Stuart R. Gelder; Tadashi Kawai; Kazuhiro Saito; Kazuyoshi Nakata; Machiko Nishino · 2005