Temporary Hearing Threshold Shift in California Sea Lions ( Zalophus californianus ) Due to One-Sixth-Octave Noise Bands Centered at 2 and 4 kHz: Effect of Duty Cycle and Testing the Equal-Energy Hypothesis

sponsorship: We thank assistants Suzanne Cornelisse, Femke Kuiphof, and Stacey van der Linden; students Irna Huisjes, Anouk van der Horst, Roos de Lepper, Pepijn Degger, Luna Korsuize, and Eline Theuws; and volunteer Manouk Vermeulen for their help in collecting the data. We thank Arie Smink for the...

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Bibliographic Details
Published in:Aquatic Mammals
Main Authors: Kastelein, Ronald A., Helder-Hoek, Lean, Defillet, Linde N., Huijser, Leonie A.E., Terhune, John M., Gransier, Robin
Format: Article in Journal/Newspaper
Language:English
Published: European Association for Aquatic Mammals 2021
Subjects:
Science & Technology
Life Sciences & Biomedicine
Marine & Freshwater Biology
Zoology
anthropogenic noise
audiogram
auditory weighting
TTS
hearing damage
hearing sensitivity
hearing recovery
Otariidae
weighting
PORPOISE PHOCOENA-PHOCOENA
HARBOR PORPOISE
PHOCA-VITULINA
MARINE MAMMALS
EXPOSURE
FREQUENCY
RECOVERY
LEVEL
0608 Zoology
3109 Zoology
Jennings
Phoca vitulina
Phocoena phocoena
Online Access:https://lirias.kuleuven.be/handle/20.500.12942/706443
https://hdl.handle.net/20.500.12942/706443
https://doi.org/10.1578/AM.47.4.2021.394
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Summary:sponsorship: We thank assistants Suzanne Cornelisse, Femke Kuiphof, and Stacey van der Linden; students Irna Huisjes, Anouk van der Horst, Roos de Lepper, Pepijn Degger, Luna Korsuize, and Eline Theuws; and volunteer Manouk Vermeulen for their help in collecting the data. We thank Arie Smink for the design, construction, and maintenance of the electronic equipment. We thank Bert Meijering (Topsy Baits) for providing space for the SEAMARCO Research Institute. Erwin Jansen (TNO, the Hague, the Netherlands) conducted the acoustic calibration measurements. We also thank Nancy Jennings (Dotmoth.co.uk) and the anonymous reviewers for their valuable constructive comments on this manuscript. Funding for this study was obtained from the U.S. Navy's Living Marine Resources program (Contract No. N-39430-20-C-2215). We thank Mandy Shoemaker and Anu Kumar for their guidance on behalf of the LMR program. The sea lions were made available for the research by Blijdorp Zoo, Rotterdam, the Netherlands. The training and testing of the California sea lions was conducted under authorization of the Netherlands Ministry of Economic Affairs, Department of Nature Management. (U.S. Navy's Living Marine Resources program|N-39430-20-C-2215) status: Published

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