Zooplankton and Geophysical Surveys
EnerGeo Alliance recognizes the ecological importance of zooplankton as a foundational component of marine food webs and supports continued scientific research into the potential effects of underwater sound on lower trophic level organisms.
The available scientific evidence does not demonstrate that geophysical survey activity has caused population-level effects on zooplankton or ecologically significant impacts on marine ecosystem productivity. While some studies have reported injury, mortality, or behavioral responses in individual organisms at close range to sound sources, such observations have generally been localized and have not been shown to result in measurable changes in zooplankton populations or marine food webs.
Research on this topic continues to evolve, and EnerGeo supports rigorous, transparent, and peer-reviewed scientific investigation of potential effects. Environmental assessments should be based on the totality of available evidence and should distinguish between localized observations, individual-level responses, and demonstrated population- or ecosystem-level consequences.
The energy geoscience and exploration industry remains committed to environmentally responsible operations and to advancing scientific understanding of marine ecosystems through research, monitoring, and continuous improvement of environmental assessment practices.
Resources
Updated 22 June 2026
