Bioelectrical impedance analysis: A new tool for assessing fish condition

By: , and 



Bioelectrical impedance analysis (BIA) is commonly used in human health and nutrition fields but has only recently been considered as a potential tool for assessing fish condition. Once BIA is calibrated, it estimates fat/moisture levels and energy content without the need to kill fish. Despite the promise held by BIA, published studies have been divided on whether BIA can provide accurate estimates of body composition in fish. In cases where BIA was not successful, the models lacked the range of fat levels or sample sizes we determined were needed for model success (range of dry fat levels of 29%, n = 60, yielding an R2 of 0.8). Reduced range of fat levels requires an increased sample size to achieve that benchmark; therefore, standardization of methods is needed. Here we discuss standardized methods based on a decade of research, identify sources of error, discuss where BIA is headed, and suggest areas for future research.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Bioelectrical impedance analysis: A new tool for assessing fish condition
Series title Fisheries
DOI 10.1080/03632415.2015.1106943
Volume 40
Issue 12
Year Published 2015
Language English
Publisher Taylor & Francis
Contributing office(s) Coop Res Unit Leetown
Description 11 p.
First page 590
Last page 600
Online Only (Y/N) N
Additional Online Files (Y/N) N
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