A new noise detected in the ocean

@article{Guerra2007ANN,
  title={A new noise detected in the ocean},
  author={{\'A}. Guerra and Xavier Martinell and {\'A}. F. Gonz{\'a}lez and M. Vecchione and J. Gracia and J. Martinell},
  journal={Journal of the Marine Biological Association of the United Kingdom},
  year={2007},
  volume={87},
  pages={1255 - 1256}
}
Many observers have noted that the sea is full of loud sounds, both ongoing and episodic. Among the many sources of natural ambient noise are wave action, physical processes such as undersea earthquakes, and biological activities of shrimps, fish, dolphins and whales. Despite interest by acoustics experts, sound production by cephalopods has been reported only twice, both involving squid. The ‘faint poppings’ produced were thought to result from fluttering of the thin external lips of the squid… Expand
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