This study provides to our knowledge the first experiment that contains multiple trophic levels and climate stressors (warming and ocean acidification) to investigate how gelatinous zooplankton (appendicularians) affect carbon cycling of marine food webs. Our novel results reveal that appendicularians thrive under climate warming and benefit from low pH levels, which alters the direction of carbon … More New study shows that appendicularian zooplankton thrive under warmer and more acidic ocean conditions and consequently alter carbon cycling