학술논문

Acoustic and Light Selective Behavioral Guidance Systems for Freshwater Fish
Document Type
article
Source
Water, Vol 13, Iss 6, p 745 (2021)
Subject
acoustic deterrents
underwater light
behavioral barrier
endemic fishes
selective filters
Hydraulic engineering
TC1-978
Water supply for domestic and industrial purposes
TD201-500
Language
English
ISSN
2073-4441
Abstract
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.