Climate change will significantly alter aquatic food provisioning services and water security with regional variances . Climate change will reduce marine fisheries and aquaculture productivity, altering the species that will be fished or cultured, and reducing aquaculture habitat in tropical and subtropical areas . Global ocean animal biomass will decrease by 5-17% under RCP2.6 and 8.5, respectively, from 1970 to 2100 with an average decline of 5% for every 1°C of warming, affecting food provisioning, revenue value and distribution . Global marine aquaculture will decline under warming and acidification from 2020 to 2100, with potential short-term gains for temperate finfish and overall negative impacts on bivalve aquaculture from habitat reduction  . Changes in precipitation, sea level, temperature and extreme climate events will affect food provisioning from inland and coastal aquatic systems . Sea level rise and altered precipitation will increase coastal inundation and water conflicts between water-dependent sectors, such as rice production, direct human use and hydropower . 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report