Ocean Sound & Marine Mammals | CSA Ocean Sciences

Ocean Sound & Marine Mammals

CSA’s Ocean Sound group within the Ocean Sound & Marine Mammals business line focuses on providing acoustic solutions for the marine environment in the client’s area of interest by investigating sources of sound and their potential impacts. Regardless of sound source type, biological or anthropogenic, CSA’s Ocean Sound team can detect, classify, locate (DCL); model, monitor; and measure these sources.

Ocean Sound Services

  • Professional and highly skilled acousticians with 24/7 mitigation consultancy
  • Acoustic modeling
  • Acoustic measurements
  • Sound source characterization
  • Sound exposure modeling
  • Assessment of masking and cumulative impacts
  • Acoustic data mining of previously acquired data
  • Remote Passive Acoustic Monitoring (PAM) through our web-based, real-time monitoring system and
  • Towed PAM systems for mitigation compliance with protected species.

CSA’s vision is to continue to develop technically advanced marine sound solutions and provide expert consulting to the offshore industries, allowing our clients the ability to better understand and mitigate their operational risks.

Acoustic Monitoring

Ocean sound is a complex issue—CSA understands ocean sound. Whether it is detection and classification of marine species, noise measurement, sound propagation, predictive modeling, or soundscape characterization; we take the approach that one size does not fit all. CSA uses the best available science and technologies to develop risk-minimizing results with a suite of solutions from simple to complex. Ocean sound issues are large in scale both temporally and spatially, but also have many short-term, acute components, which is why CSA approaches this problem at a habitat or soundscape level. Ambient noise in the ocean will fluctuate greatly depending on both natural and man-made contributions within a region’s soundscape. Short-term measurements do not provide an accurate assessment of regional changes due to cumulative variations to sound levels, but can be useful in identifying specific contributors. To provide an accurate level of change detection, long-term monitoring is necessary in order to quantify the contributions of each source. At the same time, monitoring is required to ensure that the shorter-term, acute contributions are minimized. The timing of deployment is crucial in that the data collection occurring before, during, and after an influx of operations will provide the greatest return on the analysis. These acoustic data can be used to provide long-term information about the local soundscape and the activities that presently occur and, furthermore, can be used as a benchmark for comparison with a future soundscape. CSA continually improves ocean sound and marine life assessment capabilities as technologies continue to advance. We offer fit-for-purpose solutions to the marine environment by investigating sources of sound and their potential impacts.

Marine Mammals

The Marine Mammals team provides fully trained visual, acoustic, and aerial observers for all marine and offshore industry operations. We offer full environmental assessment and mitigation support for government and private entities in offshore marine and coastal communities. Our personnel are available 24/7 for rapid response anywhere in the world.

Oil, Gas, and Renewable Energy
CSA personnel provide BOEM and NOAA-compliant training, assessment surveys, and mitigation services to the seismic, oil and gas, and renewable energy industries and offer a full range of services for protected species programs throughout all project phases, from pre-construction through decommissioning.

Bioacoustic Monitoring
CSA offers enhanced passive acoustic marine mammal detection and localization capabilities for all types of mitigation. Our specially developed acoustic monitoring system (SeaBAM) is effectively used in offshore geophysical/geotechnical surveys, hazard site surveys, migration monitoring, ship traffic studies, and harbor mitigation monitoring.

Dredging and Marine Construction
Dredging and marine construction often require the successful combination of a wide variety of environmental services. CSA provides multi-species assessment, turbidity monitoring (both active and fixed), sensitive habitat protection, and overall environmental management in support of dredging and marine construction projects. All personnel hold appropriate permits and letters of authorization for their assigned duties.

Aerial Surveys
CSA supplies qualified and experienced personnel for offshore and coastal wildlife surveys. Our staff have decades of survey experience for marine mammals, including manatees, right whales, sea turtles, and coastal and pelagic birds.

Project Consultation and Planning
CSA provides cradle-to-grave project management assistance as well as consultation for specific needs or project requirements, including desktop surveys, project planning, permitting assistance, literature reviews, and agency consultations.

  • Acoustic Sampling, Monitoring, and Characterization
  • Aerial Surveys
  • Coastal Species Surveys
  • Desktop Surveys and Literature Reviews
  • Dredging and Marine Construction Monitoring
  • Environmental Impact Assessment
  • High Definition Aerial Imaging
  • Marine Protected Species Mitigation and Monitoring
  • Pelagic Bird Surveys
  • Project Planning and Management
  • Seagrass Surveys and Monitoring
  • Seismic Mitigation
  • Turbidity Monitoring
  • Underwater Explosive Mitigation and Monitoring