Multidisciplinary investigation of stranded Harbor Porpoises (Phocoena phocoena) in Washington State with an assessment of acoustic trauma as a contributory factor (2 May - 1 June 2003)
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Title | Multidisciplinary investigation of stranded Harbor Porpoises (Phocoena phocoena) in Washington State with an assessment of acoustic trauma as a contributory factor (2 May - 1 June 2003) |
Publication Type | Report |
Year of Publication | 2004 |
Authors | Norman, S. A., S. Raverty, A. D. Pabst, D. R. Ketten, M. Fleetwood, J. K. Gaydos, B. Norberg, L. Barre, T. Cox, B. Hanson, and S. Jeffries |
Document Number | NMFS-NWR-34 |
Pagination | 120 |
Date Published | 10/2004 |
Institution | U.S. Department of Commerce, NOAA, NMFS |
City | Seattle |
Type | Technical Memorandum |
Call Number | DRK6843 |
Keywords | harbor porpoise, haro strait, mid-range, sonar, strait of juan de fuca, stranding, uss shoup |
Abstract | Observations of altered behavior of marine mammals in the area of mid-range sonar use by the naval vessel USS SHOUP in the eastern Strait of Juan de Fuca and Haro Strait on 5 May 2003, prompted the National Marine Fisheries Service (NMFS) to conduct an in-depth investigation on the causes of harbor porpoise strandings. Fifteen stranded harbor porpoises were reported during the period of 2 May 2003 to 2 June 2003, an abnormally high number when compared to the average stranding rate of 6 per year recorded over the previous decade. Eleven of the stranded harbor porpoises were collected for this investigation. |
- acoustic trauma
- assessment
- Cetacean bycatch
- contributory
- contributory factor
- factor
- Harbor
- harbor porpoise
- Harbor Porpoises
- Harbour Porpoise
- haro strait
- investigation
- may 1
- mid-range
- Multidisciplinary
- phocoena
- Porpoises
- sonar
- State
- strait of juan de fuca
- stranding
- trauma
- uss shoup
- Washington
- washington state