title: Impaired ovarian functions in arsenic-treated freshwater fish, Colisa fasciatus (bl. and sch.).
abstract: Arsenic(III) oxide (2.0 mg/l) after 15 and 30 days exposure, and 14.0 mg/l concentration after 15 days exposure, produced no marked histological alteration in the ovary of Colisa fasciatus during its mature phase, whereas 14.0 mg/l arsenic(III) oxide concentration after 30 days exposure decreased the development of oocyte (II and III stage), reduced the number and diameter of nucleoli and increased the number of atretic follicles. The possible mechanism for these alterations is discussed.
mesh_terms: D000818:Animals; D001151:Arsenic / Q000633:toxicity*; D005260:Female; D005399:Fishes / Q000502:physiology*; D010053:Ovary / Q000187:drug effects* / Q000473:pathology; D014874:Water Pollutants, Chemical / Q000633:toxicity
chemical_list: D014874:Water Pollutants, Chemical; D001151:Arsenic