Range shifts in a poleward and upward direction, following expected trajectories according to local and regional climate trends, are strongly occurring in freshwater fish populations in North America , Europe  and Central Asia  . Cold-water fish, such as coregonids and smelt have been negatively affected at the equatorial borders of their distributions . Upward elevational range shifts in rivers and streams have been observed. Systematic shifts towards higher elevation and upstream were
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report