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Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays

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Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays. / Harris, Danielle V.; Miksis-Olds, Jennifer L.; Vernon, Julia A.; Thomas, Len.

In: Journal of the Acoustical Society of America, Vol. 143, No. 5, 05.2018, p. 2980-2993.

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Harris, DV, Miksis-Olds, JL, Vernon, JA & Thomas, L 2018, 'Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays' Journal of the Acoustical Society of America, vol. 143, no. 5, pp. 2980-2993. https://doi.org/10.1121/1.5031111

APA

Harris, D. V., Miksis-Olds, J. L., Vernon, J. A., & Thomas, L. (2018). Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays. Journal of the Acoustical Society of America, 143(5), 2980-2993. https://doi.org/10.1121/1.5031111

Vancouver

Harris DV, Miksis-Olds JL, Vernon JA, Thomas L. Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays. Journal of the Acoustical Society of America. 2018 May;143(5):2980-2993. https://doi.org/10.1121/1.5031111

Author

Harris, Danielle V. ; Miksis-Olds, Jennifer L. ; Vernon, Julia A. ; Thomas, Len. / Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays. In: Journal of the Acoustical Society of America. 2018 ; Vol. 143, No. 5. pp. 2980-2993.

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@article{455d7d83988444efbd2000088999df76,
title = "Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays",
abstract = "Passive acoustic monitoring of marine mammals is common, and it is now possible to estimate absolute animal density from acoustic recordings. The most appropriate density estimation method depends on how much detail about animals' locations can be derived from the recordings. Here, a method for estimating cetacean density using acoustic data is presented, where only horizontal bearings to calling animals are estimable. This method also requires knowledge of call signal-to-noise ratios, as well as auxiliary information about call source levels, sound propagation, and call production rates. Results are presented from simulations, and from a pilot study using recordings of fin whale (Balaenoptera physalus) calls from Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) hydrophones at Wake Island in the Pacific Ocean. Simulations replicating different animal distributions showed median biases in estimated call density of less than 2{\%}. The estimated average call density during the pilot study period (December 2007-February 2008) was 0.02 calls hr-1 km2 (coefficient of variation, CV: 15{\%}). Using a tentative call production rate, estimated average animal density was 0.54 animals/1000 km2 (CV: 52{\%}). Calling animals showed a varied spatial distribution around the northern hydrophone array, with most detections occurring at bearings between 90 and 180 degrees.",
author = "Harris, {Danielle V.} and Miksis-Olds, {Jennifer L.} and Vernon, {Julia A.} and Len Thomas",
note = "D.V.H. and L.T. were funded by the Office of Naval Research (Grant Nos. N00014-14-1-0394 and N00014-16-1-2364). J.L.M.O. and J.A.V. were funded under Grant Nos. N00014-14-1-0397 and N00014-16-1-2860 also from the Office of Naval Research.",
year = "2018",
month = "5",
doi = "10.1121/1.5031111",
language = "English",
volume = "143",
pages = "2980--2993",
journal = "Journal of the Acoustical Society of America",
issn = "0001-4966",
publisher = "Acoustical Society of America",
number = "5",

}

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TY - JOUR

T1 - Fin whale density and distribution estimation using acoustic bearings derived from sparse arrays

AU - Harris, Danielle V.

AU - Miksis-Olds, Jennifer L.

AU - Vernon, Julia A.

AU - Thomas, Len

N1 - D.V.H. and L.T. were funded by the Office of Naval Research (Grant Nos. N00014-14-1-0394 and N00014-16-1-2364). J.L.M.O. and J.A.V. were funded under Grant Nos. N00014-14-1-0397 and N00014-16-1-2860 also from the Office of Naval Research.

PY - 2018/5

Y1 - 2018/5

N2 - Passive acoustic monitoring of marine mammals is common, and it is now possible to estimate absolute animal density from acoustic recordings. The most appropriate density estimation method depends on how much detail about animals' locations can be derived from the recordings. Here, a method for estimating cetacean density using acoustic data is presented, where only horizontal bearings to calling animals are estimable. This method also requires knowledge of call signal-to-noise ratios, as well as auxiliary information about call source levels, sound propagation, and call production rates. Results are presented from simulations, and from a pilot study using recordings of fin whale (Balaenoptera physalus) calls from Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) hydrophones at Wake Island in the Pacific Ocean. Simulations replicating different animal distributions showed median biases in estimated call density of less than 2%. The estimated average call density during the pilot study period (December 2007-February 2008) was 0.02 calls hr-1 km2 (coefficient of variation, CV: 15%). Using a tentative call production rate, estimated average animal density was 0.54 animals/1000 km2 (CV: 52%). Calling animals showed a varied spatial distribution around the northern hydrophone array, with most detections occurring at bearings between 90 and 180 degrees.

AB - Passive acoustic monitoring of marine mammals is common, and it is now possible to estimate absolute animal density from acoustic recordings. The most appropriate density estimation method depends on how much detail about animals' locations can be derived from the recordings. Here, a method for estimating cetacean density using acoustic data is presented, where only horizontal bearings to calling animals are estimable. This method also requires knowledge of call signal-to-noise ratios, as well as auxiliary information about call source levels, sound propagation, and call production rates. Results are presented from simulations, and from a pilot study using recordings of fin whale (Balaenoptera physalus) calls from Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) hydrophones at Wake Island in the Pacific Ocean. Simulations replicating different animal distributions showed median biases in estimated call density of less than 2%. The estimated average call density during the pilot study period (December 2007-February 2008) was 0.02 calls hr-1 km2 (coefficient of variation, CV: 15%). Using a tentative call production rate, estimated average animal density was 0.54 animals/1000 km2 (CV: 52%). Calling animals showed a varied spatial distribution around the northern hydrophone array, with most detections occurring at bearings between 90 and 180 degrees.

U2 - 10.1121/1.5031111

DO - 10.1121/1.5031111

M3 - Article

VL - 143

SP - 2980

EP - 2993

JO - Journal of the Acoustical Society of America

T2 - Journal of the Acoustical Society of America

JF - Journal of the Acoustical Society of America

SN - 0001-4966

IS - 5

ER -

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ID: 253233401