Measurements of resistance and reactance in fish with the use of bioelectrical impedance analysis: sources of error

Cox, M. Keith and Heintz, Ron and Hartman, Kyle (2011) Measurements of resistance and reactance in fish with the use of bioelectrical impedance analysis: sources of error. Fishery Bulletin, 109(1), pp. 34-47.

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Abstract

New technologies can be riddled with unforeseen sources of error, jeopardizing the validity and application of their advancement. Bioelectrical impedance analysis (BIA) is a new technology in fisheries research that is capable of estimating proximate composition, condition, and energy content in fish quickly, cheaply, and (after calibration) without the need to sacrifice fish. Before BIA can be widely accepted in fisheries science, it is necessary to identify sources of error and determine a means to minimize potential errors with this analysis. We conducted controlled laboratory experiments to identify sources of errors within BIA measurements. We concluded that electrode needle location, procedure deviations, user experience, time after death, and temperature can affect resistance and reactance measurements. Sensitivity analyses showed that errors in predictive estimates of composition can be large (>50%) when these errors are experienced. Adherence to a strict protocol can help avoid these sources of error and provide BIA estimates that are both accurate and precise in a field or laboratory setting.

Item Type: Article
Title: Measurements of resistance and reactance in fish with the use of bioelectrical impedance analysis: sources of error
Personal Creator/Author:
CreatorsEmail
Cox, M. Keith
Heintz, Ron
Hartman, Kyle
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 109
Number: 1
Page Range: pp. 34-47
Date: 2011
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8722
Depositing User: Patti M. Marraro
Date Deposited: 07 Jun 2012 14:54
Last Modified: 07 Jun 2012 14:54
URI: http://aquaticcommons.org/id/eprint/8722

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