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Open AccessArticle

Acoustic and Light Selective Behavioral Guidance Systems for Freshwater Fish

1
Centro de Investigação e Tecnologias Agroambientais e Biológicas, Universidade de Trás-os-Montes e Alto Douro, Ap 1013, 5001–801 Vila Real, Portugal
2
Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
*
Author to whom correspondence should be addressed.
Academic Editor: Michele Mistri
Water 2021, 13(6), 745; https://doi.org/10.3390/w13060745
Received: 16 February 2021 / Revised: 4 March 2021 / Accepted: 6 March 2021 / Published: 10 March 2021
(This article belongs to the Special Issue Flowing Waters and Threatened Aquatic Life)
The use of non-physical barriers, particularly based on acoustic and luminous stimuli has been historically used to influence the behavior of fish, mainly for fishing purposes. Nowadays, behavioral barriers and guidance systems have been developed, not only to deter movements of fish, but also to promote behavioral responses with the objective of native fish protection, in particular the potamodromous species, reducing their mortality in the hydraulic structures of dams and guiding them towards transposition systems or to replacement habitats in regularized water bodies. This review details the use of acoustic and luminous systems and their evolution in recent years (Scopus 2012–2019) for the development of selective behavioral barriers for fish. We found that recent technologies try to identify new acoustic and luminous sensory ranges. Ambient sound, sound of predators or luminous spectral bands with different wavelengths have been used to selectively stimulate target and non-target species, in order to improve the effectiveness of repulsive/attractive systems for fish. Guidelines for future research in the area are also present. View Full-Text
Keywords: acoustic deterrents; underwater light; behavioral barrier; endemic fishes; selective filters acoustic deterrents; underwater light; behavioral barrier; endemic fishes; selective filters
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MDPI and ACS Style

Jesus, J.; Cortes, R.; Teixeira, A. Acoustic and Light Selective Behavioral Guidance Systems for Freshwater Fish. Water 2021, 13, 745. https://doi.org/10.3390/w13060745

AMA Style

Jesus J, Cortes R, Teixeira A. Acoustic and Light Selective Behavioral Guidance Systems for Freshwater Fish. Water. 2021; 13(6):745. https://doi.org/10.3390/w13060745

Chicago/Turabian Style

Jesus, Joaquim; Cortes, Rui; Teixeira, Amilcar. 2021. "Acoustic and Light Selective Behavioral Guidance Systems for Freshwater Fish" Water 13, no. 6: 745. https://doi.org/10.3390/w13060745

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