Daphnia's phototaxis as an indicator in ecotoxicological studies: A review.

Autor: Rajewicz W; University of Graz, Universitätsplatz 2, Graz, 8010, Austria. Electronic address: wiktoria.rajewicz@uni-graz.at., Romano D; BioRobotics Institute, Sant'Anna School of Advanced Studies, viale Rinaldo Piaggio 34, Pontedera, 56025, Italy; Department of Excellence in Robotics and AI, Sant'Anna School of Advanced Studies, Piazza Martiri della Libertá 33, Pisa, 56127, Italy., Schmickl T; University of Graz, Universitätsplatz 2, Graz, 8010, Austria., Thenius R; University of Graz, Universitätsplatz 2, Graz, 8010, Austria.
Jazyk: angličtina
Zdroj: Aquatic toxicology (Amsterdam, Netherlands) [Aquat Toxicol] 2023 Dec; Vol. 265, pp. 106762. Date of Electronic Publication: 2023 Nov 11.
DOI: 10.1016/j.aquatox.2023.106762
Abstrakt: Animal-based sensors have been increasingly applied to many water monitoring systems and ecological studies. One of the staple organisms used as living sensors for such systems is Daphnia. This organism has been extensively studied and, with time, used in many toxicological and pharmaceutical bioassays, often used for exploring the ecology of freshwater communities. One of its behaviours used for evaluating the state of the aquatic environment is phototaxis. A disruption in the predicted behaviour is interpreted as a sign of stress and forms the basis for further investigation. However, phototaxis is a result of complex processes counteracting and interacting with each other. Predator presence, food quality, body pigmentation and other factors can greatly affect the predicted phototactic response, hampering its reliability as a bioindicator. Therefore, a holistic approach and meticulous documentation of the methods are needed for the correct interpretation of this behavioural indicator. In this review, we present the current methods used for studying phototaxis, the factors affecting it and proposed ways to optimise the reliability of the results.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: