No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Speaking up: Killer whales (Orcinus orca) increase their call amplitude in response to vessel noise
1.Erbe, C. (2002). “Underwater noise of whale-watching boats and potential effects on killer whales (Orcinus orca), based on acoustic impact model,” Marine Mammal Sci. 18, 394–418.
2.Foote, A. D. , Osborne, R. W. , and Hoelzel, A. R. (2004). “Whale-call response to masking boat noise,” Nature (London) 428, 910.
3.Ford, J. K. B. (1987). “A catalogue of underwater calls produced by killer whales (Orcinus orca) in British Columbia,” Can. Data Rep. Fish. Aquat. Sci., p. 1–165.
4.Ford, J. K. B. (1989). “Acoustic behaviour of resident killer whales (Orcinus orca) off Vancouver Island, British Columbia,” Can. J. Zool. 67, 727–745.
6.Koski, K. , Osborne, R. , and Tallmon, R. (2006). “Soundwatch public outreach/boater education project 2004–2005 final program report,” NMFS Contract No. AB133F-04-SE-0835 (Report No. NFFP 5000-4-00026), p. 1–25.
8.Mellinger, D. K. (2001). “ISHMAEL: Integrated System for Holistic Multi-channel Acoustic Exploration and Localization,” U.S. Dept. Commer., NOAA Tech. Memo. OAR-PMEL-120, 26 p.
10.NMFS (National Marine Fisheries Services) (2005). “Endangered and threatened wildlife and plants: Endangered status for Southern Resident killer whales,” Fed. Regist. [Docket No. 041213348-5285-02, 18 November 2005] 70(217), 69903–69912.
11.NRC (National Research Council) (2003). Ocean Noise and Marine Mammals (National Academies Press, Washington, DC).
12.Oberweger, K. , and Goller, F. (2001). “The metabolic cost of birdsong production,” J. Exp. Biol. 204, 3379–3388.
13.Scheifele, P. M. , Andrew, S. , Cooper, R. A. , Darre, S. , Musiek, F. E. , and Max, L. (2005). “Indication of a Lombard vocal response in the St. Lawrence River beluga,” J. Acoust. Soc. Am. 117, 1486–1492.
14.Szymanski, M. D. , Bain, D. E. , Kiehl, K. , Pennington, S. , Wong, S. , and Henry, K. R. , (1999). Killer whale (Orcinus orca) hearing: Auditory brainstem response and behavioral audiograms. J. Acoust. Soc. Am. 106, 1134–1141.
Article metrics loading...
This study investigated the effects of anthropogenic sound exposure on the vocal behavior of free-ranging killer whales. Endangered Southern Resident killer whales inhabit areas including the urban coastal waters of Puget Sound near Seattle, WA, where anthropogenic sounds are ubiquitous, particularly those from motorized vessels. A calibrated recording system was used to measure killer whale call source levels and background noise levels . Results show that whales increased their call amplitude by for every increase in background noise levels. Furthermore, nearby vessel counts were positively correlated with these observed background noise levels.
Full text loading...
Most read this month