January 17, 2023

The International Quiet Ocean Experiment announces the availability of the Ocean Sound EOV Implementation Plan for community input. The plan is available at Ocean-Sound-EOV-Implementation-Plan-For-Community-Review-1.pdf ( Please submit your comments by 15 February through one of two methods: 

  1. We prefer that you submit comments through a Google form, which provides a text box for input for each chapter:  Ocean Sound EOV Implementation Plan Feedback (
  2. If you do not wish to cut and paste your comments into the Google form, or do not have access to Google, please submit your comments through the SurveyMonkey system: You can submit either a marked-up document or a document listing your suggestions in bullet format.

In either case, please note the line number and your specific suggestion.

August 8, 2022

The Consortium for Ocean Leadership has released a summary report on its Workshop toward Planning an Ocean Sound Decade. See

August 3, 2022

IQOE Newsletter #9 is available at IQOE-Newsletter-9-1.pdf (

March 2, 2022

New paper: A quantitative inventory of global soniferous fish diversity (…). See also FishSounds database at See also press release.

February 17, 2022

The IQOE Working Group on Acoustic Measurement of Ocean Biodiversity Hotspots and other colleagues have published an article calling for a Global Library of Underwater Biological Sounds (GLUBS) (see article at and press release at Global Library of Underwater Biological Sounds, “GLUBS,” Will Help Monitor Changing Marine Life ( The latest IQOE Newsletter is available here.  IQOE is co-sponsored by the Scientific Committee on Oceanic Research and Partnership on Observation of the Global Ocean.

February 10, 2022

IQOE has been compiling metadata about hydrophone deployments for the past two years. This database includes records for about 600 current and past hydrophone deployments. A map as of 8 August 2021 is given at I am in the process of updating this static map.

We know that static maps on a specific date do not present a complete picture of hydrophone deployments. We are in the process of updating the hydrophone database to make it possible to create maps for a range of dates to provide more complete information. We are also adding the possibility to show mobile deployments that start and end at different geographic coordinates.

The updated database will be integrated with the IQOE Website. It will not contain acoustic data for the hydrophone deployments, but will contain metadata for each one, including contact information, that will make it easier to obtain data.

If you have not yet submitted hydrophone metadata for the existing database—for current or past deployments and stationary or mobile deployments—and would like to get your metadata into the database, please submit your metadata on the input form.

Apart from providing a community resource, IQOE hopes to use the database to identify data holders who can help create time series of ambient ocean sound for different parts of the ocean by the end of IQOE in 2025. 

Please forward this email to anyone you think would be interested in submitting metadata.

Best regards,

Ed Urban

IQOE Project Manager

April 22, 2021

We are pleased to announce the launch of a software system called Ocean Sound Software for Making Ambient Noise Trends Accessible (MANTA), available at CLO-BRP / MANTA-WIKI / wiki / Home — Bitbucket The MANTA wiki includes instructions required for its use.

April 13, 2021

The IQOE Science Plan published in 2015 featured the concept of an International Year of the Quiet Ocean (IYQO).  This year would seek quieting of the ocean in specific areas to study how much human additions of sound could be reduced and how organisms would react, as well as more generally focus effort on IQOE-related observations and research. The IQOE Science Plan suggested the IYQO as year 7 of the 10-year IQOE project.  IQOE also foresaw studies that would take advantage of serendipitous events that change ocean noise levels. 

During Year 5 of the IQOE project (2020) the COVID-19 pandemic provided an unanticipated interval of reduced sound levels larger than IQOE dreamed possible through an IYQO based on voluntary reductions of anthropogenic sound.   Appreciating this extraordinary occurrence, IQOE has designated 2020 the International Year of the Quiet Ocean and is focusing project resources to encourage study of changes in sound levels and effects on organisms during 2020.  Fortunately, the worldwide ocean acoustics community had deployed hundreds of hydrophones able to capture the ocean soundscape during 2019-2021.

IQOE-related teams are releasing software to enable comparable analyses of sound observations and a data management system to assemble data from observations in many different locations.

Preliminary results from individual studies of 2020 indicate that the effects on marine animal behavior of changes in human activities in different locations depend on particular features of local and regional sound source reductions, pandemic-mitigation policies adopted in each area, and national maritime and marine recreation cultures.