A summary comparison of active acoustic detections and visual observations of marine mammals in the Canadian Beaufort Sea
Pyc, C.D.; Geoffroy, M.; Knudsen, F.R. (2016). A summary comparison of active acoustic detections and visual observations of marine mammals in the Canadian Beaufort Sea, in: Popper, A.N. et al. The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875: pp. 879-884. http://dx.doi.org/10.1007/978-1-4939-2981-8_108 In: Popper, A.N.; Hawkins, A. (Ed.) (2016). The effects of noise on aquatic life II. Advances in Experimental Medicine and Biology, 875. Springer Science+Business Media, Inc: New York. ISBN 978-1-4939-2980-1. xxx, 1292 pp., more In: Advances in Experimental Medicine and Biology. Springer: Berlin. ISSN 0065-2598; e-ISSN 2214-8019, more |  |
| Keywords | Aquatic organisms > Marine organisms > Aquatic mammals > Marine mammals
Balaena mysticetus Linnaeus, 1758 [WoRMS]; Delphinapterus leucas (Pallas, 1776) [WoRMS]
Marine/Coastal | | Author keywords | Fisheries sonar; Active acoustic monitoring |
| Authors | | Top | - Pyc, C.D.
- Geoffroy, M.
- Knudsen, F.R.
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| Abstract | Fisheries sonar was used to determine the applicability of active acoustic monitoring (AAM) for marine mammal detection in the Canadian Beaufort Sea. During 170 h of simultaneous observation by marine mammal observers and active acoustic observation, 119 Balaena mysticetus (bowheads) and 4 Delphinapterus leucas (belugas) were visually sighted, while 59 acoustic signals of bowheads were detected by AAM operators. Observations and detection of seals were also recorded. Comparative results indicate that commercially available active acoustic systems can detect seals at distances up to 500 m and large baleen whales at distances up to 2 km. |
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