GoldfishWaterCyprinidaeWater SupplyFresh WaterBody WaterWater PollutionWater PurificationWater Pollutants, ChemicalCypriniformesFish ProteinsOptic NerveRetinaWater PollutantsTectum MesencephaliSuperior ColliculiNerve RegenerationVestibulocochlear NerveSaccule and UtricleGillsCarpsWater DeprivationFishes