Distribution of snails of medical and veterinary importance in an organically polluted watercourse in Nigeria.
D000818:Animals; D004553:Electric Conductivity; D005618:Fresh Water / Q000032:analysis; D009549:Nigeria; D010100:Oxygen / Q000032:analysis; D011156:Population Density; D012908:Snails / Q000502:physiology*; D014876:Water Pollution
D010100:Oxygen