Frequency- and depth-dependent target strength measurements of individual mesopelagic scatterers
Frequency- and depth-dependent target strength measurements of individual mesopelagic scatterers
| dc.contributor.author | Bassett, Christopher | |
| dc.contributor.author | Lavery, Andone C. | |
| dc.contributor.author | Stanton, Timothy K. | |
| dc.contributor.author | DeWitt Cotter, Emma | |
| dc.date.accessioned | 2020-09-28T19:54:01Z | |
| dc.date.available | 2020-09-28T19:54:01Z | |
| dc.date.issued | 2020-08-18 | |
| dc.description | Author Posting. © Acoustical Society of America, 2020. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 148(2),(2020): EL153-EL158, doi:10.1121/10.0001745. | en_US |
| dc.description.abstract | Recent estimates based on shipboard echosounders suggest that 50% or more of global fish biomass may reside in the mesopelagic zone (depths of ∼200–1000 m). Nonetheless, little is known about the acoustic target strengths (TS) of mesopelagic animals because ship-based measurements cannot resolve individual targets. As a result, biomass estimates of mesopelagic organisms are poorly constrained. Using an instrumented tow-body, broadband (18–90 kHz) TS measurements were obtained at depths from 70 to 850 m. A comparison between TS measurements at-depth and values used in a recent global estimate of mesopelagic biomass suggests lower target densities at most depths. | en_US |
| dc.description.sponsorship | Development of Deep-See was funded by the National Science Foundation (Grant No. OCE MRI 1626087), field work was funded by NOAA, and ongoing support is provided by the WHOI Audacious/TED Project. Mike Jech (NOAA NWFSC) and WHOI collaborators Bob Pettit, Kaitlyn Tradd, Peter Weibe, and Joel Llopiz contributed to development and fieldwork. | en_US |
| dc.identifier.citation | Bassett, C., Lavery, A. C., Stanton, T. K., & Cotter, E. D. (2020). Frequency- and depth-dependent target strength measurements of individual mesopelagic scatterers. Journal of the Acoustical Society of America, 148(2), EL153-EL158. | en_US |
| dc.identifier.doi | 10.1121/10.0001745 | |
| dc.identifier.uri | https://hdl.handle.net/1912/26232 | |
| dc.publisher | Acoustical Society of America | en_US |
| dc.relation.uri | https://doi.org/10.1121/10.0001745 | |
| dc.title | Frequency- and depth-dependent target strength measurements of individual mesopelagic scatterers | en_US |
| dc.type | Article | en_US |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 1b7d9c18-39b7-41e9-b00e-e7dcb3c2c600 | |
| relation.isAuthorOfPublication | b198df6c-4db9-487d-9d08-4fb3e2b129d7 | |
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| relation.isAuthorOfPublication | a12e33a6-904d-4668-baed-cdd11b302547 | |
| relation.isAuthorOfPublication.latestForDiscovery | 1b7d9c18-39b7-41e9-b00e-e7dcb3c2c600 |
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