Underwater Noise
The Impact of Ship Noise
Underwater Noise in the Arctic
The Arctic marine environment is shaped by sound. Marine mammals such as whales, seals, and narwhals depend on acoustic cues for essential life functions, including communication, orientation, and feeding. Vessel activity can alter the underwater soundscape, with potential consequences for wildlife and for communities that rely on healthy marine ecosystems.
Recognizing this challenge, AECO formally adopted underwater noise as a new environmental focus area at the Annual General Meeting in 2025. The decision reflects a commitment to address underwater noise through science‑based, collaborative, and practical approaches tailored to Arctic expedition cruise operations. AECO’s members also agreed to develop mandatory guidelines for underwater noise mitigation, building on existing research and operational experience.
Building on Research and Collaboration
AECO’s work on is grounded in ongoing research and regional collaboration. In the Canadian Arctic, AECO has contributed to a project led in partnership with Oceans North, the University of California San Diego, and the Mittimatalik Hunters and Trappers Organization. The project focuses on measuring ship‑specific noise, developing predictive noise maps, and improving understanding of how different operational conditions influence underwater sound. The initiative is supported by Fisheries and Oceans Canada.
In Svalbard, AECO members are participating in a research study led by the Norwegian Polar Institute, which aims to identify vessel characteristics and operational factors that contribute to underwater noise. Together, these projects provide a strong scientific foundation for future mitigation measures and operational guidance.
The Svalbard project complements AECO’s work in Canada, by providing a European High Arctic perspective and by focusing specifically on non‑transit cruise operations. Together, the projects support a broader understanding of underwater soundscapes across different Arctic regions and operating contexts.
From Research to Practice
By establishing underwater noise as a priority area, AECO is creating a structured framework for translating research into action. This includes support for members in reducing noise‑related impacts through voyage planning, targeted training, onboard data collection, and improved operational practices. Research findings are shared with members and partners to help informed decision‑making and continuous improvement across the expedition cruise fleet.
Last update: 15. May 2026