Contact TheIPD.US

Regulatory Actions
View Public Comments
Submit Comments

• 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
•  Models
•  Sound Propagation
•  Mitigation
• 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

•  Statutes
• Regulations
• Relevant NMFS Permits
• Major Studies and Reports

Comment on IPD
•  Potential Research Projects
•  Research Underway
•  Structure of the IPD

CRE Interventions
•  Agency Administrative Actions
•  Rulemaking
•  Litigation


Soundings Archive

NMFS Requires PAM in Proposed IHA
On September 19, 2012, the U. S. National Marine Fisheries Service published Federal Register notice of NMFS' proposed issuance of an Incidental Harassment Authorization to the Lamont-Doherty Earth Observatory of Columbia University, in cooperation with the Pacific Gas and Electric Company. This IHA is proposed pursuant NMFS' authority under the Marine Mammal Protection Act. It would authorize L-DEO and PG & E to take marine mammals, by harassment, incidental to conducting a marine geophysical survey off the central coast of California, November to December, 2012.

NMFS' Federal Register notice explains:

    "Vessel-based, towed PAM will complement the visual monitoring program, when practicable. Visual monitoring typically is not effective during periods of poor visibility or at night, and even with good visibility, is unable to detect marine mammals when they are below the surface or beyond visual range. Passive acoustical monitoring can be used in addition to visual observations to improve detection, identification, and localization of cetaceans. The passive acoustic monitoring will serve to alert visual observers (if on duty) when vocalizing cetaceans are detected."
  • Click here to read NMFS’ Federal Register notice of proposed IHA
    Copyright © 2005 The Center for Regulatory Effectiveness.
    All rights reserved.