• TAGLESS-BRS From-the-field UPDATE

    Friday, October 6, 2017

    Two Harbors, Catalina Island. We wanted to provide a quick from-the-field update on our progress on the TAGLESS-BRS project ongoing off Catalina Island in southern California. We have encountered many groups of common, bottlenose, and Risso’s dolphins, with thousands of individuals seen from land, sea, and air, such as the group of common dolphins (Delphinus […]

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  • Fall Phase of Tagless-BRS study begins off Catalina Island

    Friday, September 29, 2017

    The SOCAL Tagless-BRS project is back on the water! SEA is partnering with Cascadia Research, Kelp Marine Research, and NOAA’s Southwest Fisheries Science Center and the talented crew of the M/V Magician (above) on an exciting technology integration collaboration conducting novel studies on the basic behavior and behavioral responses to noise in several dolphin species. Common, bottlenose, […]

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  • NEW PUBLICATION – New insights into prey aggregation in ocean scattering layers

    Tuesday, August 29, 2017

    SEA’s Senior Scientist Dr. Brandon Southall was proud to co-author a recent paper providing new insights into the aggregation of marine organisms into ocean scattering layers – a basic principle of life in the ocean. This paper was lead by our colleague Dr. Kelly Benoit-Bird of MBARI and Oregon State University. The citation and abstract […]

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  • NEW PUBLICATION – Shipping Noise and Marine Mammals

    Saturday, July 29, 2017

    SEA’s Senior Scientist Dr. Brandon Southall recently authored a chapter within the Encyclopedia of Maritime and Offshore Engineering (Wiley). This publication traces a decade-long collaboration among several governmental, non-governmental, academic, and industry partners to begin to tackle the global issue of shipping noise in the ocean and it’s potential effects on marine mammals. Beginning with simply […]

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  • New Marine Mammal Research Project – Integrating Visual and Acoustic Sensors to Study Behavior and Behavioral Response in Small Cetaceans

    Tuesday, June 20, 2017

    SEA is proud to partner with Cascadia Research Collective, NOAA/NMFS Southwest Fisheries Science Center, and Kelp Marine Research on a new marine mammal research project beginning off southern California.                                              “Integrating remote sensing methods […]

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News & Press

Apr
16

IMO adopts guidelines to reduce underwater noise from commercial ships.

  The International Maritime Organization (IMO) recently adopted guidelines to reduce underwater noise from commercial ships. The new guidelines: –         recognize that shipping noise can have short-term and long-term impacts on marine life; –         call for measurement of shipping noise according to objective ISO standards, which are themselves on the verge of adoption; –         identify […]

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Apr
16

New Paper on “200 kHz” sonar with side lobes audible to marine mammals

    On behalf of my co-authors, I would like to let you know about a new paper on the audibility of high frequency sonar systems to some marine mammals. We investigated the acoustic “leakage” of energy into side lobes from the 200 kHz center frequency of three commercially-available sonar systems. These active sonar systems […]

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Apr
11

New Paper on Spotted Seal Hearing

We are very happy to announce the recent publication on hearing and the masking effects of noise in spotted seals. This is the first-ever such measurement of hearing in this species both in air and under water. This study was conducted in highly controlled and quiet acoustic environments and the results indicate very acute hearing […]

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Feb
4

New paper on seismic surveys and mitigation of impacts on marine mammals

SEA Blog, A paper was on responsible practices for conducting seismic surveys in environmentally sensitive areas was published recently in Aquatic Mammals. The lead author was Dr. Doug Nowacek from Duke University’s Marine Laboratory, who is a close colleague of SEA’s president Brandon Southall who was also an author on the paper. A copy of […]

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SOCAL-BRS

SOCAL-BRS is a study of basic behavior and responses to controlled sound exposures in a variety of marine mammal species.

Southall Environmental Associates, Inc.

Reducing environmental impacts from essential human activities requires unique approaches to meet challenging conservation objectives in the 21st century. SEA, Inc. works globally with diverse scientific teams and cutting-edge technologies to provide real-world solutions. Learn more about SEA