|Estimating minke whale (Balaenoptera acutorostrata) boing sound density using passive acoustic sensors|Martin, S.W.; Marques, T.A.; Thomas, L.; Morrissey, R.P.; Jarvis, S.; DiMarzio, N.; Moretti, D.; Mellinger, D.K. (2013). Estimating minke whale (Balaenoptera acutorostrata) boing sound density using passive acoustic sensors. Mar. Mamm. Sci. 29(1): 142-158. hdl.handle.net/10.1111/j.1748-7692.2011.00561.x
In: Marine Mammal Science. Society for Marine Mammalogy: Lawrence, Kan.. ISSN 0824-0469, more
Balaenoptera acutorostrata Lacépède, 1804 [WoRMS]; Marine
cue count;passive acoustic density estimation;passive acoustic monitoring;boing vocalization;spatially explicit capture-recapture
|Authors|| || Top | Dataset |
- Martin, S.W.
- Marques, T.A.
- Thomas, L.
- Morrissey, R.P.
- Jarvis, S.
- DiMarzio, N.
- Moretti, D.
- Mellinger, D.K.
Density estimation for marine mammal species is performed primarily using visual distance sampling or capture-recapture. Minke whales in Hawaiian waters are very difficult to sight; however, they produce a distinctive “boing” call, making them ideal candidates for passive acoustic density estimation. We used an array of 14 bottom-mounted hydrophones, distributed over a 60 × 30 km area off Kauai, Hawaii, to estimate density during 12 d of recordings in early 2006. We converted the number of acoustic cues (i.e., boings) detected using signal processing software into a cue density by accounting for the false positive rate and probability of detection. The former was estimated by manual validation, the latter by applying spatially explicit capture-recapture (SECR) methods to a subset of data where we had determined which hydrophones detected each call. Estimated boing density was 130 boings per hour per 10,000 km2 (95% CI 104–163). Little is known about the population's acoustic behavior, so conversion from boing to animal density is difficult. As a demonstration of the method, we used a tentative boing rate of 6.04 boings per hour, from a single animal tracked in 2009, to give an estimate of 21.5 boing-calling minke whales per 10,000 km2.
- DECAF - PMFR Minke Whales - Multiple Sensor - Boing Localizations, more