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Ecological implications of altered fish foraging after exposure to an antidepressant pharmaceutical.

Hedgespeth, Melanie LU ; Nilsson, Anders LU and Berglund, Olof LU (2014) In Aquatic Toxicology 151(Online 17 December 2013). p.84-87
Abstract
Pharmaceutical residues are increasingly detected in environmental and biological samples, some at levels known to adversely affect non-target organisms; however, less is known of how these organism-level effects relate to the ecology of aquatic systems. Foraging processes may be used as behavioral endpoints that link effects on individuals to the population and community levels, enabling risk assessment of environmental contaminants at larger ecological scales. In this study, we performed feeding trials using juvenile Eurasian perch (Perca fluviatilis) exposed to the selective serotonin reuptake inhibitor (SSRI) sertraline to test the hypothesis that sertraline alters foraging ecology of the fish in terms of their functional response. We... (More)
Pharmaceutical residues are increasingly detected in environmental and biological samples, some at levels known to adversely affect non-target organisms; however, less is known of how these organism-level effects relate to the ecology of aquatic systems. Foraging processes may be used as behavioral endpoints that link effects on individuals to the population and community levels, enabling risk assessment of environmental contaminants at larger ecological scales. In this study, we performed feeding trials using juvenile Eurasian perch (Perca fluviatilis) exposed to the selective serotonin reuptake inhibitor (SSRI) sertraline to test the hypothesis that sertraline alters foraging ecology of the fish in terms of their functional response. We found an exposure-dependent decrease in feeding with increasing sertraline concentrations. Further experiments revealed that feeding rates decrease at both low and high prey densities, indicating effects on both attack rate and handling time, respectively. Because the functional response can shape consumer-resource dynamics, such effects may alter the stability of predator-prey systems and consequently, community structure. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Pharmaceutical, Sertraline, Fish, Functional response, Foraging ecology
in
Aquatic Toxicology
volume
151
issue
Online 17 December 2013
pages
84 - 87
publisher
Elsevier
external identifiers
  • pmid:24380369
  • wos:000336188000011
  • scopus:84899485526
ISSN
1879-1514
DOI
10.1016/j.aquatox.2013.12.011
language
English
LU publication?
yes
id
1af0e303-e9cf-405b-8c4a-1ced271ebd6a (old id 4292275)
date added to LUP
2014-02-28 11:05:44
date last changed
2017-09-10 03:04:44
@article{1af0e303-e9cf-405b-8c4a-1ced271ebd6a,
  abstract     = {Pharmaceutical residues are increasingly detected in environmental and biological samples, some at levels known to adversely affect non-target organisms; however, less is known of how these organism-level effects relate to the ecology of aquatic systems. Foraging processes may be used as behavioral endpoints that link effects on individuals to the population and community levels, enabling risk assessment of environmental contaminants at larger ecological scales. In this study, we performed feeding trials using juvenile Eurasian perch (Perca fluviatilis) exposed to the selective serotonin reuptake inhibitor (SSRI) sertraline to test the hypothesis that sertraline alters foraging ecology of the fish in terms of their functional response. We found an exposure-dependent decrease in feeding with increasing sertraline concentrations. Further experiments revealed that feeding rates decrease at both low and high prey densities, indicating effects on both attack rate and handling time, respectively. Because the functional response can shape consumer-resource dynamics, such effects may alter the stability of predator-prey systems and consequently, community structure.},
  author       = {Hedgespeth, Melanie and Nilsson, Anders and Berglund, Olof},
  issn         = {1879-1514},
  keyword      = {Pharmaceutical,Sertraline,Fish,Functional response,Foraging ecology},
  language     = {eng},
  number       = {Online 17 December 2013},
  pages        = {84--87},
  publisher    = {Elsevier},
  series       = {Aquatic Toxicology},
  title        = {Ecological implications of altered fish foraging after exposure to an antidepressant pharmaceutical.},
  url          = {http://dx.doi.org/10.1016/j.aquatox.2013.12.011},
  volume       = {151},
  year         = {2014},
}