This fact sheet provides information on the Objectives and activities of Work Package 6 of the SponGES project: Threats and impacts to sponge grounds. Considering diverse anthropogenic stressors acting on the deep sea and the vulnerability of deep-sea sponges to human disturbance, it is urgent to understand the full scale of human impacts on these ecosystems, and how they interact with each other. Such information is essential to respond to international regulations such as the UNGA Resolution 61/105 for the protection of vulnerable marine ecosystems from destructive fishing practices and for identifying indicators of Good Environmental Status for seafloor integrity of the Marine Strategy Framework Directive.