“…Therefore, they may induce behavioural alterations in non-target organisms, like fish, with severe fitness consequences ( Martin et al, 2021 ). Several studies have already demonstrated that sublethal exposure to SSRIs can significantly alter fish behaviour, physiology, and gene expression ( Hedgespeth et al, 2014 ; Kellner et al, 2015 ; Bisesi et al, 2016 ; Pelli and Connaughton, 2015 ; Weinberger and Klaper, 2014 ; Yang et al, 2021 ; Menon et al, 2020 ). This class of antidepressants has often been detected in water systems ( Fekadu et al, 2019 ; Burkina et al, 2015 ; Menon et al, 2020 ; Fernandez-Rubio et al, 2019 ; Silva et al, 2015 ; Sumpter and Margiotta-Casaluci, 2022 ), and their environmental levels are expected to increase significantly due to the negative impact of the COVID-19 pandemic on mental health ( Singh et al, 2022 ).…”