Underwater noise and Arctic marine mammals: review and policy recommendations
Level 5 - mechanism / opinion, no new human data
Narrative review and policy analysis (non-clinical design analogy)
OpenAlex W3035757568 · doi:10.1139/er-2019-0033
What was done
The authors conducted a narrative review of ambient sound levels in the Arctic, synthesized existing evidence on behavioral and physiological reactions of Arctic and sub-Arctic marine mammals to underwater anthropogenic noise, and evaluated policy and management options for noise regulation in the region.
What was found
The abstract reports no quantitative measurements or numerical data. It qualitatively notes that underwater noise can cause auditory masking, behavioral disturbance, hearing damage, and mortality in marine animals. The review indicates that while Arctic sound levels have historically been lower due to sea ice cover, climate-driven ice loss is expanding noisy anthropogenic activities, potentially causing disproportionate harm due to lower baseline ambient noise and higher species sensitivity.
Why it matters
As Arctic waters become more accessible to commercial shipping and industrial activity, synthesizing acoustic impacts helps determine whether standard marine protection policies are adequate or if Arctic-specific regulatory frameworks are required.
Limits
The abstract contains no quantitative data, specific effect estimates, systematic search criteria, or study counts. Findings represent qualitative narrative synthesis and policy commentary rather than primary empirical data.
Cited by
- supports Noise pollution from large ships and motorized watercraft damages whale and dolphin hearing, disrupting their long-distance sound communication and navigation.