» Keywords » Harbor Porpoise

EIA Database

Comparative temporary threshold shifts in harbour porpoise and harbour seal, and a severe shift in a seal (L).

2013
Pay-walled Peer Reviewed Publication

Journal of the Acoustical Society of America

Kastelein, R.A., Gransier, R. and Hoek, L.

Anthropogenic noise may cause temporary hearing threshold shifts (TTSs) in marine mammals. Tests with identical methods show that harbor porpoises are more susceptible to TTS induced...
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Keywords: Harbor Porpoise, Harbor seal, Temporary threshold shifts

Frequency of greatest temporary hearing threshold shift in harbor porpoises (Phocoena phocoena) depends on the noise level.

2014
Pay-walled Peer Reviewed Publication

Journal of the Acoustical Society of America

Kastelein, R.A., Schop, J., Gransier, R., and Hoek, L.

Harbor porpoises may suffer hearing loss when they are exposed to high level sounds. After exposure for 60 min to a 6.5 kHz continuous tone at...
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Keywords: Harbor Porpoise, Noise level, Sound pressure levels

Effectiveness of a sealscarer in deterring harbour porpoises (Phocoena phocoena)

2012
Open Access Report

Report by BioConsult SH

Brandt, M., Hoschle, C., Diedrichs, A., Betke, K., Matuschek, R., Witte, S. and Nehls G.

Offshore pile driving during windfarm construction goes along with substantial noise emissions into the water column, which may harm marine mammals. To avoid injuries from acute...
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Keywords: Harbor Porpoise, Seal scarer

Reactions of harbor porpoises Phocoena phocoena and herring Clupea harengus to acoustic alarms

2011
Open Access Peer Reviewed Publication

Marine Ecology Progress Series

Culik, B. M., Koschinski, S., Tregenza, N., & Ellis, G. M.

Small cetaceans are susceptible to incidental mortality in the various forms of gillnet fisheries throughout their range. Research conducted since 1994 has shown that acoustic alarms...
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Keywords: Acoustic alarms, By-catch, Gillnets, Harbor Porpoise, Mortality, Noise, Pinger, Theodolite-tracking

TTS growth and recovery in harbor porpoises exposed to intermittent and continuous signals

2019
Open Access Report

Final Report

Dr. A.M. Benda-Beckmann, Dr. D.R. Ketten, Dr. ir. C.A.F. de Jong, Dr. F.P.A. Lam, Dr. ir. R.A.Kastelein

This report describes the results of two separate IOGP JIP-funded projects (I) and (II), both aimed at studying Temporary Threshold Shift (TTS) in harbor porpoises (Phocoena...
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Keywords: Harbor Porpoise, Noise, Odontocetes, Phocoena phocoena, Sound, Temporary threshold shift, TTS