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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Behavioural effects on marine amphipods exposed to silver ions and silver nanoparticles

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Vannuci-Silva, Monizze [1, 2] ; Kohler, Shanelle [3] ; Umbuzeiro, Gisela de A. [1, 2] ; Ford, Alex T. [3]
Total Authors: 4
[1] Univ Estadual Campinas, Inst Biol, Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Technol, Limeira, SP - Brazil
[3] Univ Portsmouth, Inst Marine Sci, Portsmouth, Hants - England
Total Affiliations: 3
Document type: Journal article
Source: Environmental Pollution; v. 252, n. B, p. 1051-1058, SEP 2019.
Web of Science Citations: 0

Behavioural responses to contaminants are an important endpoint in ecotoxicology because they link effects at biochemical or cellular levels to impacts on individual fitness. Due to the increasing use of silver in nanomaterials, studies of its effects on the behaviour of aquatic organisms are important to assess the risks of silver nanoparticles (AgNP) released into the environment. The aim of this work was to evaluate the behavioural effects of silver on the marine amphipod Echinogammarus marinus after exposure to AgNO3 via water and AgCl or AgNP via food. Swimming activity of the amphipods was tracked during 6 min alternating dark and light conditions. Animals swam slower and responded less to light at higher concentrations of silver in the water. No differences were found in the behaviour of animals exposed via feeding up to 28 days, hence, longer exposure times may be required for the observation of effects. This is the first work to appraise behaviour effects of silver ions and AgNP on marine amphipods. Although the protocol has been successfully developed for this purpose, specimens appeared to habituate to test conditions during the experiments. Therefore, the need for further understanding of baseline behaviours in these model organisms is discussed. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/26301-7 - Development and application of method for silver determination in the hemolymph of amphipods exposed to nanomaterials
Grantee:Monizze Vannuci e Silva
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 16/19635-4 - Assessment of behavioural and reproductive effects in marine amphipods exposed to silver
Grantee:Monizze Vannuci e Silva
Support type: Scholarships abroad - Research Internship - Doctorate