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In 2010, NOAA committed to improve tools that the agency uses to assess the effects of man-made sound on whales, dolphins, and porpoises. 12 Current number of underwater reference stations in U.S. waters tracking ocean noise levels over time for the federal government.
Ocean Noise. Sound is the most efficient means of communicating underwater, especially for many marine species. NOAA Fisheries works to better understand how marine animals use sound and the potential impacts of man-made noise on the underwater environment.
2 Ιουλ 2018 · Scientists now know that as man-made noise travels, it drowns out the natural ocean soundscape and makes it difficult for fish to hear each other. This affects their ability to find food...
1 Ιαν 2019 · Man-made noise has the potential to induce a stress response in marine fauna, defined here as “the physiological, hormonal, and behavioral changes that result from exposure to a stressor” (Wright et al., 2007).
Natural sounds come from marine life and naturally occurring events like underwater earthquakes. Human-made sounds come from many sources, such as ships, underwater energy exploration, military sonar, and underwater construction, among others. Learn more about sound in the ocean.
Researchers are uncovering just how large the impact of man-made noise is on ocean life. But there are some surprisingly simple ways we could tackle this overlooked pollution problem.
Home. Facts. What is ocean noise? Ocean noise refers to sounds made by human activities that can interfere with or obscure the ability of marine animals to hear natural sounds in the ocean. Humpback whales swimming underwater. Photo credit: Ed Lyman/NOAA, under NOAA permit #14682.
