Temperature will continue to be a major driver of fisheries changes globally, but other non-climate factors like organism physiology and ecosystem response  and fishing pressure , as well as other climate-induced drivers like acidification, deoxygenation and sea ice loss , will play critical roles in future global and local fisheries changes . Warming, acidification and business-as-usual fishing policy under RCP8.5 are projected to place around 60% of global fisheries at very high risk  . Model intercomparison showed that ocean acidification and protection affect ecosystems more than fishing pressure, and ecological adaptation will significantly determine impacts on fishery biomass, catch and value until approximately 2050  . Ecosystem responses to warming water, fishing pressure, food-web changes, MHWs and sea ice algal populations have been responsible for highly variable or collapsing populations of Northern Hemisphere high-latitude forage fish species including sand lances , Arctic cod , capelin  and herring  . Declining stocks of forage fish are expected
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report