Prelude to the anthology in honour of Hiroya Kawanabe.- The life and work of Hiroya Kawanabe: the priest ecologist.- Lifetime list of publications by Hiroya Kawanabe.- An interview with Hiroya Kawanabe.- Research on fish ecology in Japan: a brief history and selected review.- Distribution of the freshwater fishes of Japan: an historical overview.- New aspects of sex change among reef fishes: recent studies in Japan.- Evolution of freshwater eels of the genus Anguilla: a probable scenario.- Genetic structure and differentiation of four Lethenteron taxa from the Far East, deduced from allozyme analysis.- Osteology of Zacco pachycephalus, sensu Jordan & Evermann (1903), with special reference to its systematic position.- A study of the systematics of cyprinid fishes by two-dimensional gel electrophoresis.- Fertilization environment of the non-copulating marine sculpin, Hemilepidotus gilberti.- Comparison of laboratory-reared eggs, embryos and larvae of five labrid fishes.- Life-history variations in the fluvial sculpin, Cottus nozawae (Cottidae), along the course of a small mountain stream.- Spawning ecology of Japanese surf smelt, Hypomesus pretiosus japonicus (Osmeridae), in Otsuchi Bay, northeastern Japan.- Timing and sites of parturition of the viviparous scorpionfish, Sebastiscus marmoratus.- Coexistence of permanently territorial cichlids of the genus Petrochromis through male-mating attack.- Dyadic relationships in nesting males of the three-spined stickleback, Gasterosteus aculeatus.- Sex determination system of the rosy bitterling, Rhodeus ocellatus ocellatus.- Reproductive success in female Neolamprologus mondabu (Cichlidae): influence of substrate types.- Parental care and social organization of the spiny eel, Aethiomastacembelus platysoma, in Lake Tanganyika.-Daily spawning and development of sensitivity to gonadotropin and maturation-inducing steroid in the oocytes of the bambooleaf wrasse, Pseudolabrus japonicus.- Effects of sandy substrate and light on hypermelanosis of the blind side in cultured Japanese flounder Paralichthys olivaceus.- Factors influencing otolith strontium/calcium ratios in Anguilla japonica elvers.- Growth of dark chub, Zacco temmincki (Cyprinidae), with a discussion of sexual size differences.- Analyses of growth processes of pond smelt, Hypomesus nipponensis, in Lake Ogawara, Japan, through the use of daily otolith increments.- Starvation of drifting goby larvae due to retention of free embryos in upstream reaches.- Feeding of a benthic goby in a river where nektonic fishes are absent.- Competitive interactions for foraging microhabitat among introduced brook charr, Salvelinus fontinalis, and native bull charr, S. confluentus, and westslope cutthroat trout, Oncorhynchus clarki lewisi, in a Montana stream.- Temporal variation in foraging group structure of a size-structured stream fish community.- Food resources of shrimp-eating cichlid fishes in Lake Tanganyika.- Feeding habits of largemouth bass in a non-native environment: the case of a small lake with bluegill in Japan.- A new perspective on lakes: Kawanabes latest achievements.- Species and subject index.