[MARMAM] Recommendations and mitigation of anthropogenic underwater noise – implications for marine mammal conservation

Chou, Emily echou at wcs.org
Mon Jan 18 10:31:43 PST 2021


On behalf of my co-authors, I’m pleased to announce the publication of our article in Ocean & Coastal Management on international efforts to address anthropogenic underwater noise, including recommended policies, actions and mitigation measures for marine mammals:

Chou E, Southall BL, Robards M, and Rosenbaum HC. 2021. International policy, recommendations, actions and mitigation efforts of anthropogenic underwater noise.
https://authors.elsevier.com/a/1cNz13RKK-nkZl<https://authors.elsevier.com/a/1cNz13RKK-nkZl>

Abstract
Anthropogenic underwater noise levels have generally increased as industrial activities in the ocean have become more prevalent. Because of the central nature of sound in the lives of many marine animals, and the known and potential adverse impacts of noise, it is also gaining increased international recognition as an important global conservation issue. Here, a current compilation and synthesis of official documents, reports, and strategic plans from various intergovernmental, governmental, and international organizations, and noise-related projects and programs, demonstrate increasing efforts to understand anthropogenic underwater noise, and the mitigation and management measures that are being considered to reduce noise. While some entities aim to better understand and quantify underwater noise and its impacts, others have recommended explicit mitigation measures including spatio-temporal approaches to managing noise sources, and vessel quieting technologies. New approaches also include the development of certification or voluntary noise-reduction programs and agreements. We highlight four considerations that will better link the potential impacts of noise with corresponding mitigation and noise reducing efforts: 1) collaboration to address the transboundary and cumulative nature of underwater noise; 2) differing countries’ implementation capabilities for addressing noise; 3) time and intensity tradeoffs (e.g., louder noise for a shorter time period versus quieter but for longer); and 4) variable noise impacts depending on specific life history stages and life functions. Our review affirms the international consensus that anthropogenic underwater noise is a currently pervasive yet relatively transient form of pollution, the effects of which can be significantly reduced through effective mitigation and regulatory action.

The article is available for free at the above link until end of February 2021.

Best regards,

Emily Chou
Research Assistant, Ocean Giants Program
Wildlife Conservation Society
2300 Southern Blvd.
Bronx, NY 10460 USA
office:    +1 (718) 741-1455
skype:    echou.


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[signature_916422070]
Emily Chou
Research Assistant, Ocean Giants Program
Wildlife Conservation Society
2300 Southern Blvd.
Bronx, NY 10460 USA
office:    +1 (718) 741-1455
skype:    echou.

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