RT Journal Article ID 5a153c2d3b6a2464 A1 Ovcharenko, N. V. A1 Yemeliyanova, L. V. T1 Aboriginal and Invasive Gammarids (Gammaridae, Amphipoda) of the North-East Poland as Microparasites' Hosts JF Hydrobiological Journal JO HYD YR 2009 FD 2009-04-13 VO 45 IS 2 SP 75 OP 84 K1 Poland K1 gammarids K1 microparasites K1 Microsporidia K1 gregarines K1 native fauna K1 Ponto-Caspian invaders AB Results of parasitological studies of more than 3000 specimens of gammarids from the water bodies and streams of the north-east Poland are presented. Microsporidians (Pleistophora muelleri, Nosema pontogammari) and gregarines (Cephaloidophora sp., Uradiophora ramosa) were registered in four (Gammarus fossarum, G. pulex, Obesogammarus crassus, Pontogammarus robustoides) of 12 investigated species of gammarids, which belong to the native Boreal, Ponto-Caspian and North American faunistic groups. Infestation rate did not exceed 3%. All indicated species of microparasites were regustered in Poland for the first time. Transition of parasites of the Ponto-Caspian hosts to the hosts of native fauna was not registered. PB Begell House LK https://www.dl.begellhouse.com/journals/38cb2223012b73f2,088ae078450c2bba,5a153c2d3b6a2464.html