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NMFS ITA for Gulf of Mexico
NMFS Acoustic Guidelines
NMFS IHA for Scripps

  Best Available Science on Acoustic Effects on Marine Mammals
  Seismic vs. Sonar
  Physical Effects
 Behavioral Effects
  Sound Propagation
 Extrapolation From Terrestrial Mammal Acoustic Effects to Marine Mammals
  Cumulative and Synergistic Effects
 Indirect Effects

  US Navy
 Sperm Whale Seismic Study
 Lamont-Doherty Earth Observatory Institute
 The Acoustic Ecology Institute
 Fisheries and Oceans Canada
 Sakhalin Energy Investment Company Limited

 Relevant NMFS Permits
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Comment on IPD
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CRE Interventions
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Soundings Archive

NMFS Proposes 5-Year ITA for Navy Sonar
On July 9, 2007, the National Marine Fisheries Service proposed rules under the Marine Mammal Protection Act that authorize the Navy's taking of marine mammals, through harassment, incidental to the Navy's use of Surveillance Towed Array Sensor System Low Frequency Active Sonar.

Comments are due to NMFS by July 24, 2007. The Agency does not explain why it is allowing only a 2-week comment period on this complex, important and controversial action.

This is the first of a series of CRE articles on the NMFS proposal. Topics to be addressed in future articles include:

  • NMFS' independent peer review of the Acoustic Integration Model;

  • the Navy's risk assessment of low frequency sonar effects on marine mammals; and

  • monitoring methods for safety radii that are proposed in the ITA.
  • Click here to read NMFS' Federal Register notice

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