Key Insights: 

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Ocean noise encompasses both natural and human-introduced sounds, creating a complex soundscape in the seas.

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American lobsters and mantis shrimp can create low frequency buzzing or rumbling by vibrating their carapace through muscle contraction.

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Certain shark species may use the unintentional noise produced by fish to track their prey in the ocean.

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Marine animals use noise, such as slapping their bodies against the water, to navigate, communicate, and search for prey through echolocation.

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The global shipping economy depends on large cargo ships and smaller private vessels that contribute to the noise pollution in the oceans.

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Sonar devices use sound waves to detect underwater objects, but the use of active sonar can produce significant sounds in our oceans, impacting marine life.

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Seismic air guns shoot compressed air at the seafloor to locate oil reservoirs and do geology research.

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Construction activities such as pile driving and mechanical vibrations from turbines contribute to noise pollution in the ocean, impacting marine life.

Full Video Timestamped  Summary

00:00 Ocean noise includes natural sounds from rain, wind, waves, and ice, as well as sounds created by ocean animals and humans.

00:55 Invertebrates can produce sounds through stridulation, muscle contraction, cavitation, and vibrating body parts against the substrate.

01:49 Fish make noise through stridulation, swim bladder, and unintentional hydrodynamic motion, with marine mammals being the most associated with sound production in the ocean.#

02:44 Marine animals use vocalizations, larynx, and specialized air sacs to communicate, navigate, and search for prey, as well as create noise through body slapping and jumping.

03:48 Human activity, especially marine traffic, introduces noise into the ocean environment, impacting marine life.

04:21 Sonar devices use sound waves to detect underwater objects, with passive sonar listening to existing sounds and active sonar emitting pulses to gather information about surroundings, including echo-sounders used for navigation and detecting fish, but these technologies also produce significant sounds in the ocean during offshore construction.

05:16 Seismic surveys use air guns to locate oil reservoirs and conduct geology research, while marine traffic remains elevated for construction.

05:38 Construction activities like dredging, drilling, and pile driving create noise pollution, and wind farms also contribute to ocean noise, affecting marine life.