TY JOUR TI CYPRINID FISH INFECTIOUS DISEASE (RED SPOT DISEASE) MANIFESTATION IN THE AMUR REGION CONDITIONS KW carp red spot disease KW environmental factors KW Amur region JO Bulletin of KSAU AU Kukharenko, N.S. AU Kovalchuk, I.V. AU Yakovleva, N.V. PY 2012 IS PB Krasnoyarsk State Agrarian University