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2. 2. Saito, K., Katano, O. & Koizumi, A. (1988) Incursion and spawning by fresh-water fish into temporary waters around rice paddies. J. Jpn. Soc. Ecol. 38, 35-47 [In Japanese].
3. 3. Yuasa, T. & Dohi, N. (1989) Fresh water fish spawning in rice paddies and in temporary waters similar to rice paddies in Okayama Prefecture. Fresh Water Fish Conserv. 1989, 120-125 [In Japanese].