Low concentrations of the benzodiazepine drug oxazepam induce anxiolytic effects in wild-caught but not in laboratory zebrafish

Sammanfattning

Pollution by psychoactive pharmaceuticals has been found to disrupt anti-predator behaviors of wild fish. The challenge is now to identify which of the many psychoactive drugs pose the greatest threat. One strategy is to screen for behavioral effects of selected pharmaceuticals using a single, widely available fish species such as zebrafish. Here, we show that although such high-throughput behavioral screening might facilitate comparisons between pharmaceuticals, the choice of strain is essential. While wild-caught zebrafish exposed to concentrations of the anxiolytic drug oxazepam as low as 0.57 mu g L-1 showed a reduction in the response to conspecific alarm pheromone, laboratory strain AB did not respond to the alarm cue, and consequently, the anxiolytic effect of oxazepam could not be measured. Adaptation to the laboratory environment may have rendered laboratory strains unfit for use in some ecotoxicological and pharmacological studies, since the results might not translate to wild fish populations. (C) 2019 Elsevier B.V. All rights reserved.

Nyckelord

Oxazepam; Benzodiazepines; GABA; Pharmaceutical pollution; Schreckstoff; Domestication

Publicerad i

Science of the Total Environment
2020, volym: 703, artikelnummer: 134701
Utgivare: ELSEVIER

SLU författare

• Cerveny, Daniel

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    
  • Jihočeská univerzita v Českých Budějovicích
  • Umeå Universitet

• Brodin, Tomas

  • Institutionen för vilt, fisk och miljö, Sveriges lantbruksuniversitet
    

• Winberg, Svante

  • Uppsala universitet

UKÄ forskningsämne

Etologi
Miljövetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1016/j.scitotenv.2019.134701

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/104016