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Related Concept Videos

Perception of Sound Waves01:01

Perception of Sound Waves

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The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
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Echo01:06

Echo

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The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
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Sustainable Development01:43

Sustainable Development

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As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.
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Sound as Pressure Waves01:17

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Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
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Taking the Animals' Perspective Regarding Anthropogenic Underwater Sound.

Arthur N Popper1, Anthony D Hawkins2, Frank Thomsen3

  • 1Department of Biology, University of Maryland, College Park, MD 20742, USA.

Trends in Ecology & Evolution
|May 30, 2020
PubMed
Summary

Man-made sound impacts marine life, but data for regulation is scarce. Future management requires more research and collaboration between scientists and regulators to protect marine ecosystems.

Keywords:
effectsfishesmarine invertebratesmarine mammalsmitigationnoiseregulation

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Area of Science:

  • Marine Biology
  • Environmental Science
  • Acoustic Ecology

Background:

  • Anthropogenic sound poses risks to marine organisms, including fish and invertebrates.
  • Existing regulations and mitigation strategies lack sufficient scientific data for effective environmental management.

Purpose of the Study:

  • To highlight the need for data-driven environmental management of anthropogenic sound.
  • To advocate for an animal and ecosystem-centric approach to regulation and mitigation.

Main Methods:

  • Review of current data limitations in marine sound regulation.
  • Analysis of the need for integrated research and regulatory strategies.

Main Results:

  • Significant data gaps exist for assessing the impacts of underwater sound on marine life.
  • Current regulatory frameworks may not adequately protect marine biota due to insufficient scientific basis.

Conclusions:

  • Urgent need for increased data collection on the effects of anthropogenic sound on marine species.
  • Collaboration between researchers and regulators is crucial for developing effective, evidence-based conservation strategies and prioritizing future research.