Vv. Kostin et al., DOWNSTREAM MIGRATION OF PERCH (PERCA-FLUVIATILIS) FROM RESERVOIRS SITUATED IN DIFFERENT CLIMATIC ZONES, Russian journal of ecology, 27(4), 1996, pp. 287-291
The influence of the latitude of reservoirs on the average annual dens
ity and age composition of downstream-migrating perch and the seasonal
and daily dynamics of downstream perch migration was estimated. Relia
ble differences in the seasonal dynamics of the downstream migration o
f perch were only recorded for reservoirs situated in high and tempera
te latitudes. The seasonal dynamics of perch migration depend on the l
ate and nonuniform warming of water in the arctic Ust'-Khantaiskoe res
ervoir.