Freshwater fisheries provide the primary source of animal protein and essential micronutrients for an estimated 200 million people globally and are especially important in tropical developing nations . There is evidence that freshwater fishes have undergone climate-induced distribution shifts , and further shifts are projected as water temperatures rise and hydrological regimes change, with the largest effects predicted for equatorial, subtropical and semi-arid regions . Currently, the effects of distribution shifts on local fishery catch potential, food security and/or nutrition have not been quantified for any major inland fishery, representing a key knowledge gap for anticipating future adaptation needs for freshwater fishing societies. However, studies on fishers' perceptions of climate-induced changes in fishery catch rates have revealed that using local knowledge to adjust management practices  and shifting gears, fishing grounds and target species  can be effective adaptation options.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report