Acoustic density estimation of dense fish shoals
| Autor: | Guillaume Matte, Jean Guillard, Sergey E. Skipetrov, Benoit Tallon, Philippe Roux |
|---|---|
| Přispěvatelé: | Institut des Sciences de la Terre (ISTerre), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement [IRD] : UR219-Université Grenoble Alpes (UGA)-Université Gustave Eiffel-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), iXBLUE (Entreprise), Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire de physique et modélisation des milieux condensés (LPM2C ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement [IRD] : UR219-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA) |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Acoustics and Ultrasonics Acoustics Oceans and Seas FOS: Physical sciences Coherent backscattering Applied Physics (physics.app-ph) 01 natural sciences Quantitative Biology::Other Arts and Humanities (miscellaneous) Open sea 0103 physical sciences Animals 14. Life underwater [PHYS.COND.CM-DS-NN]Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn] Target strength 010306 general physics Physics::Atmospheric and Oceanic Physics [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] geography geography.geographical_feature_category Scattering 010604 marine biology & hydrobiology Fishes Shoal Density estimation Acoustic wave Physics - Applied Physics Sound [SDV.SA.STP]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of fishery Fish Geology |
| Zdroj: | Journal of the Acoustical Society of America Journal of the Acoustical Society of America, Acoustical Society of America, 2020, 148 (3), pp.EL234-EL239. ⟨10.1121/10.0001935⟩ Journal of the Acoustical Society of America, 2020, 148 (3), pp.EL234-EL239. ⟨10.1121/10.0001935⟩ |
| ISSN: | 1520-8524 0001-4966 |
| DOI: | 10.1121/10.0001935⟩ |
| Popis: | Multiple scattering of acoustic waves offers a noninvasive method for density estimation of a dense shoal of fish where traditional techniques such as echo-counting or echo-integration fail. Through acoustic experiments with a multi-beam sonar system in open sea cages, multiple scattering of sound in a fish shoal, and in particular the coherent backscattering effect, can be observed and interpreted quantitatively. Furthermore, a volumetric scan of the fish shoal allows isolation of a few individual fish from which target strength estimations are possible. The combination of those two methods allows for fish density estimation in the challenging case of dense shoals. 5 pages, 3 figures |
| Databáze: | OpenAIRE |
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