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Temporal signal processing of dolphin biosonar echoes from salmon prey
1. Au, W. W. L. , Branstetter, B. K. , Benoit-Bird, K. J. , and Kastelein, R. A. (2009). “ Acoustic basis for fish prey discrimination by echolocating dolphins and porpoises,” J. Acoust. Soc. Am. 126, 460–467.
2. Au, W. W. L. , Horne, J. , and Jones, C. (2010). “ Basis of acoustic discrimination of Chinook salmon from other salmons by echolocating Orcinus orca,” J. Acoust. Soc. Am. 128, 2225–2232.
3. Ford, J. K. B. , and Ellis, G. M. (2006). “ Selective foraging by fish-eating killer whales Orcinus orca in British Columbia,” Mar. Ecol. Prog. Ser. 316, 185–199.
4. Muller, R. , and Kuc, R. (2000). “ Foliage echoes: A probe into the ecological acoustics of bat echolocation,” J. Acoust. Soc. Am. 108, 836–845.
5. Schölkopf, B. , and Smola, A. J. (2001). Learning with Kernels: Support Vector Machines, Regularization, Optimization, and Beyond (The MIT Press, Cambridge, MA), p. 15.
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Killer whales project short broadband biosonar clicks. The broadband nature of the clicks provides good temporal resolution of echo highlights and allows for the discriminations of salmon prey. The echoes contain many highlights as the signals reflect off different surfaces and parts of the fish body and swim bladder. The temporal characteristics of echoes from salmon are highly aspect dependent and six temporal parameters were used in a support vector machine to discriminate between species. Results suggest that killer whales can classify salmon based on their echoes and provide some insight as to which features might enable the classification.
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