Estimation of Bluefin Tuna (Thunnus thynnus) mean length in sea cages by acoustical means

V. Puig-Pons,P. Munoz-Benavent,I. Perez-Arjona,A. Ladino, S. Llorens-Escrich, G. Andreu-Garcia,Jose M. Valiente-Gonzalez, V. Atienza-Vanacloig, P. Ordonez-Cebrian, Jose I. Pastor-Gimeno,V. Espinosa

Applied Acoustics（2022）

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摘要

•Estimation of Bluefin Tuna mean length in sea cages has been performed using underwater acoustic tools.•The combined use of optical and acoustical techniques has revealed a strong relationship between TS and ABFT length measured in fattening cages.•Good agreement was found between TS and the fish fork (without the need to know the tuna's tilt angle), even considering uncompensated TS variable.

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关键词

Underwater acoustics,Bluefin Tuna Biomass estimation,Underwater computer vision,Target strength,Fish management,Fish sizing

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