Global decline of pelagic fauna in a warmer ocean

Pelagic fauna is expected to be impacted under climate change according ecosystem simulations. However, the direction and magnitude of impact still uncertain not corroborated by observation-based statistical studies. Here we compile a global underwater sonar database 20 ocean projections predict future distribution sound-scattering around world’s oceans. We show that pelagic will seriously compromised end twenty-first century if continue current greenhouse emission scenario. Low mid latitudes are lose from 3% 22% animal biomass due expansion low-productive systems, while higher would populated present-day temperate fauna, supporting results further strong mitigation measures contain warming below 2 °C reduce these impacts less than half. The authors an understand in They loss 3–22% low high-emissions scenarios, with reduced half contained °C.