Multilinear Regression Analysis between Local Bioimpedance Spectroscopy and Fish Morphological Parameters - LIRMM - Laboratoire d’Informatique, de Robotique et de Microélectronique de Montpellier Access content directly
Journal Articles Fishes Year : 2023

Multilinear Regression Analysis between Local Bioimpedance Spectroscopy and Fish Morphological Parameters

Vincent Kerzérho
Serge Bernard
Claire Saraux
Fabien Soulier

Abstract

Repeated fish handling may cause stress, which biases experiments and so affects the results. In order to reduce this, the present study investigates the benefit of using bioimpedance analysis to estimate morphological parameters. Bioimpedance analysis is a non-lethal and integrative electrical measurement that can be used to estimate several kinds of physiological parameters and is used in medicine and ecological studies. In particular, bioimpedance can monitor the individual growth of fish, which is a prerequisite for most biological and ecological studies, as body size is one of the best predictors for numerous life history traits and ecological parameters. After a short review on the use of bioimpedance measurement in medicine and ecology, we illustrate the potential of bioimpedance spectroscopy, as opposed to single frequency measurement, for experimental studies on fish. Using a monolithic four-contact electrode and a cost-effective portable system, we conducted bioimpedance spectroscopy on 159 sardines. The association between the length, weight, and electrical parameters obtained at different frequencies from the bioimpedance spectroscopy was investigated. Our results show that accounting for more than one frequency substantially improves the prediction of length and weight. We conclude that bioimpedance could potentially be a powerful tool for monitoring fish growth in ecological studies.
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Origin : Publication funded by an institution
Licence : CC BY - Attribution

Dates and versions

lirmm-03970313 , version 1 (02-02-2023)

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Vincent Kerzérho, Florence Azaïs, Serge Bernard, Sylvain Bonhommeau, Blandine Brisset, et al.. Multilinear Regression Analysis between Local Bioimpedance Spectroscopy and Fish Morphological Parameters. Fishes, 2023, 8, ⟨10.3390/fishes8020088⟩. ⟨lirmm-03970313⟩
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