[Ectoparasitic Infusoria of sticklebacks in the Neva delta].
D000818:Animals; D016798:Ciliophora / Q000254:growth & development*; D004463:Ecology; D004478:Ectoparasitic Infestations / Q000145:classification*; D005399:Fishes; D012426:Russia
Ektoparaziticheskie infuzorii koliushek Nevskoĭ del'ty.