title: The impact of the exotic fish Gambusia affinis (Baird and Girard) on some natural predators of immature mosquitoes.
abstract: The effects of Gambusia affinis on some suspected predators of mosquitoes were studied for a period of 12 months. A list of such predators was given. The most abundant invertebrate predators were Odonata, followed by Hemiptera and Ephemeroptera and the least common were Coleoptera. The population density of mosquito predators, with exception of Notonectidae and the fish Oreochromis niloticus, was markedly reduced in the presence of G. affinis. Application of aerial pesticides reduced the population of both G. affinis and O. niloticus fish. However it had no effect on the numbers of all invertebrate predators.
mesh_terms: D000383:Agriculture; D000818:Animals; D000852:Anopheles; D004463:Ecology; D005247:Feeding Behavior; D005399:Fishes / Q000502:physiology*; D007313:Insecta / Q000502:physiology*; D009032:Mosquito Control / Q000379:methods*; D011156:Population Density; D011235:Predatory Behavior; D013397:Sudan; D014867:Water
chemical_list: D014867:Water