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Evaluating Tools and Technologies for Monitoring Baleen Whales During Offshore Wind Foundation Installation

Abstract

Offshore wind energy facilities are being planned and installed in United States waters in accordance with regulations and processes designed to avoid negative effects on federally-protected baleen whales and other marine mammals. Potential impacts to baleen whales associated with offshore wind farm construction are of particular concern because of their conservation status, the overlap of their habitat with existing and planned offshore wind energy facilities, and their expected sensitivity to low-frequency sounds, such as those produced during pile driving. Therefore, this report focuses on monitoring technologies capable of detecting this species group. The ability to install offshore wind turbine foundations in low- to no-visibility conditions is of interest to developers because it increases construction flexibility and reduces the duration of in-water foundation installation activities. Several available monitoring technologies have the potential to detect whales in low- and no-light conditions (e.g., passive acoustic monitoring systems, infrared camera systems), but no standardized approach exists to characterize the functional performance of these technologies. 

The Pacific Northwest National Laboratory and the National Renewable Energy Laboratory, with support from the U.S. Department of Energy and input from the Bureau of Ocean Energy Management and the National Oceanic and Atmospheric Administration, assessed the current state of technologies and methods for monitoring baleen whales in low- and no-light conditions during installation of fixed-bottom turbine foundations. 

In developing the report, the labs engaged with stakeholders during public workshops, organized by the Regional Wildlife Science Collaborative, and recruited subject matter experts for interviews and peer review. Based on this feedback, the labs then developed technology-specific reviews and a standardized framework to help guide offshore wind energy project developers and technology designers as they navigate these technological challenges. The report provides documentation about key performance metrics, a synthesis of the state of monitoring technology performance, a potential framework to standardize technology characterization, and recommendations for research, development, and deployment. Although this report is specific to baleen whale monitoring technologies during installation of fixed-bottom wind turbine foundations, the monitoring technologies and the proposed framework could be applicable to other marine mammal species and aspects of offshore wind energy development, with the caveat that other marine mammal species have behaviors (e.g., surfacing and calling rates) that differ from baleen whales and may require a modified approach.

References

The table below contains the relevant literature to this report.

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Passive Acoustic Tracking of Singing Humpback Whales (Megaptera novaeangliae) on a Northwest Atlantic Feeding Ground Stanistree, J. E.; Risch, D.; Van Parijs, S. M. 2013 Journal Article     Marine Mammals, Cetaceans
Environmental DNA (eDNA) for Monitoring Marine Mammals: Challenges and Opportunities [Mini Review] Suarez-Bregua, P.; Alvarez-Gonzalez, M.; Parsons, K. M.; et al. 2022 Journal Article      
Tracking Sperm Whales with a Towed Acoustic Vector Sensor Thode, A.; Skinner, J.; Scott, P.; et al. 2010 Journal Article     Marine Mammals, Cetaceans
Passive Acoustic Monitoring for Estimating Animal Density Thomas, L.; Marques, T. A. 2012 Journal Article      
Mysticete Sounds Thompson, T. J.; Winn, H. E.; Perkins, P. J. 1979 Book Chapter     Marine Mammals, Cetaceans
Three-Dimensional Localization of Sperm Whales Using a Single Hydrophone Tiemann, C. O.; Thode, A. M.; Straley, J.; et al. 2006 Journal Article     Marine Mammals, Cetaceans
50 to 30-Hz Triplet and Singlet Down Sweep Vocalizations Produced by Sei Whales (Balaenoptera borealis) in the Western North Atlantic Ocean Tremblay, C. J.; Van Parijs, S. M.; Cholewiak, D. 2019 Journal Article     Marine Mammals, Cetaceans
The Photographic Determination of Group Size, Composition, and Stability of Coastal Porpoises (Tursiops truncatus) WŸrsig, B.; WŸrsig, M. 1977 Journal Article     Marine Mammals, Cetaceans
Ferries and Environmental DNA: Underway Sampling from Commercial Vessels Provides New Opportunities for Systematic Genetic Surveys of Marine Biodiversity Valsecchi, E.; Arcangeli, A.; Lombardi, R.; et al. 2021 Journal Article      
Passive Acoustic Monitoring from Fixed Platform Observatories Van der Schaar, M.; AndrŽ, M.; E. Delory; et al. 2017 Report      
Management and Research Applications of Real-Time and Archival Passive Acoustic Sensors Over Varying Temporal and Spatial Scales Van Parijs, S. M.; Clark, C. W.; Sousa-Lima, R. S.; et al. 2009 Journal Article      
NOAA and BOEM Minimum Recommendations for Use of Passive Acoustic Listening Systems in Offshore Wind Energy Development Monitoring and Mitigation Programs Van Parijs, S. M.; Baker, K.; Carduner, J.; et al. 2021 Journal Article Wind Energy Noise Marine Mammals
Comparing Methods Suitable for Monitoring Marine Mammals in Low Visibility Conditions During Seismic Surveys Verfuss, U. K.; Gillespie, D.; Gordon, J.; et al. 2018 Journal Article     Marine Mammals
Low Visibility Real-Time Monitoring Techniques Review Verfuss, U. K.; Gillespie, D.; Gordon, J.; et al. 2016 Report      
Array Stability on Instantaneous Localization of Marine Mammals von Benda-Beckmann, A. M.; Beerens, S. P.; van IJsselmuide, S. P. 2013 Journal Article     Marine Mammals
Acoustic Detection and Satellite-Tracking Leads to Discovery of Rare Concentration of Endangered North Pacific Right Whales Wade, P.; Heide-J¿rgensen, M. P.; Shelden, K.; et al. 2006 Journal Article     Marine Mammals, Cetaceans
Estimating Source Position Accuracy of a Large-Aperture Hydrophone Array for Bioacoustics Wahlberg, M.; M¿hl, B.; Teglberg, M. P. 2001 Journal Article      
The Development of Automated Detection Techniques for Passive Acoustic Monitoring as a Tool for Studying Beaked Whale Distribution and Habitat Preferences in the California Current Ecosystem Yack, T. M. 2013 Thesis     Marine Mammals, Cetaceans
Feasibility on Infrared Detection of Cetaceans for Avoiding Collision with Hydrofoil Yonehara, Y.; Kagami, L.; Yamada, H.; et al. 2012 Journal Article     Marine Mammals, Cetaceans
Detecting, Classifying, and Counting Blue Whale Calls with Siamese Neural Networks  Zhong, M.; Torterotot, M.; Branch, T. A.; et al. 2021 Journal Article     Marine Mammals, Cetaceans
Range Estimation of Cetaceans with Compact Volumetric Arrays Zimmer, W. M. X.  2013 Journal Article     Marine Mammals, Cetaceans
Automatic Round-the-Clock Detection of Whales for Mitigation from Underwater Noise Impacts Zitterbart, D. P.; Kindermann, L.; Burkhardt, E.;  et al. 2013 Journal Article   Noise Marine Mammals, Cetaceans
Scaling the Laws of Thermal Imaging-Based Whale Detection Zitterbart, D. P.; Smith, H. R.; Flau, M.; et al. 2020 Journal Article     Marine Mammals, Cetaceans