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A Monte Carlo experiment for measuring acoustic properties of macroalgae living tissue

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journal contribution
posted on 2023-05-18, 12:11 authored by Hermand, J-P, Randall, J
A methodology is developed to measure ex situ ultrasonic velocity of submerged aquatic vegetation tissue, in particular, macroalgae, in a nondestructive and efficient manner. An entire thallus is submerged in artificial seawater-filled tank through which many ultrasonic pulse-echo measurements are recorded while thallus parts are randomly displaced. Average sound speed of tissue is estimated from normal fit to extracted travel times given measured total volume fraction of tissue and travel time in water alone. For species Ecklonia radiata the resulting values for sound speed 1573.4 ± 4.8 m s−1 and adiabatic compressibility 3.134 ×10−10 ± 1.34 ×10−11 Pa−1 at 18 °C agree with more laborious and destructive methods.

History

Publication title

Journal of the Acoustical Society of America

Volume

137

Issue

4

Pagination

EL314-EL319

ISSN

0001-4966

Department/School

Institute for Marine and Antarctic Studies

Publisher

Acoustical Soc Amer Amer Inst Physics

Place of publication

Ste 1 No 1, 2 Huntington Quadrangle, Melville, USA, Ny, 11747-4502

Rights statement

Copyright 2015 Acoustical Society of America

Repository Status

  • Open

Socio-economic Objectives

Assessment and management of terrestrial ecosystems

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