title: Sexual activity and ageing in the toleost fish, Rhodeus sericeus amarus.
mesh_terms: D000375:Aging; D000818:Animals; D005260:Female; D005399:Fishes / Q000502:physiology*; D008297:Male; D008974:Mollusca; D009865:Oocytes / Q000166:cytology; D010053:Ovary / Q000166:cytology / Q000502:physiology; D012098:Reproduction; D013737:Testis / Q000166:cytology / Q000502:physiology