Seasonal changes in the testes of a freshwater fish Channa gachua.
D000818:Animals; D005399:Fishes / Q000033:anatomy & histology* / Q000502:physiology; D005618:Fresh Water; D008297:Male; D009929:Organ Size; D012098:Reproduction; D012621:Seasons; D013091:Spermatogenesis; D013737:Testis / Q000033:anatomy & histology* / Q000166:cytology / Q000502:physiology