Abstract

Deep-sea ecosystems play a crucial yet often overlooked role in global carbon sequestration. Recent explorations have provided new insights into how deep-sea biodiversity contributes to the ocean’s capacity to store carbon, impacting climate regulation. This article reviews recent findings on the mechanisms through which deep-sea organisms influence carbon sequestration, including the biological pump, the role of sedimentary processes, and the impact of species diversity on carbon cycling. We discuss how the activities of deep-sea fauna and flora contribute to the long-term storage of carbon in the deep ocean and assess the implications of these processes for climate change mitigation. The article concludes with recommendations for future research and conservation strategies to protect deep-sea biodiversity and enhance its role in carbon sequestration.