Assessment of potential impact of magnetic fields from a subsea high-voltage DC power cable on migrating green sturgeon, Acipenser medirostris

Wyman, Megan T; Kavet, Robert; Battleson, Ryan D; Agosta, Thomas V; Chapman, Eric D; Haverkamp, Paul J; Pagel, Matthew D; Klimley, A Peter

doi:10.5167/uzh-277921

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Wyman, M. T., Kavet, R., Battleson, R. D., Agosta, T. V., Chapman, E. D., Haverkamp, P. J., Pagel, M. D., & Klimley, A. P. (2023). Assessment of potential impact of magnetic fields from a subsea high-voltage DC power cable on migrating green sturgeon, Acipenser medirostris. Marine Biology, 170, 164. https://doi.org/10.1007/s00227-023-04302-4

Abstract

Empirical evidence suggests that marine animals perceive and orient to local distortions in the earth’s natural magnetic field. Magnetic fields (MFs) generated by electrified underwater cables may produce similar local distortions in the earth’s main field. Concern exists that these distortions may impact migration movements of MF-sensitive animals. The Trans Bay Cable (TBC) is a ± 200-kV, 400-megawatt, 85-km high-voltage direct current transmission line buried through San Francisco Bay (37° 56′ 8.81″ N, 122° 27′ 0.19″ W). Detections