Ocean warming has shifted distributions of fish  and marine mammal species  poleward  or deeper  . Warming has also tropicalised the pelagic and demersal fish assemblages of mid- and high-latitude shelves  . Fisheries catch composition in many shelf-sea ecosystems has become increasingly dominated by warm- water species since the 1970s  . Warming has taxonomically diversified fish communities along a latitudinal gradient in the North Sea but has homogenised functional diversity . However, in some regions, changing predator or prey distributions, temperature-dependent hypoxia, population changes, evolutionary adaptation and other biotic or abiotic processes, including species' exploitation, confound responses to climate-induced drivers, which must therefore be interpreted with caution . For example, although, most species' range edges are tracking temperature change on the northeast shelf of the USA  , range edges of others are not.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report