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Effects of 17α-ethinylestradiol on individual life-history parameters and estimated population growth rates of the freshwater gastropods Radix balthica and Bithynia tentaculata.

Hallgren, Per LU ; Sorita, Zaoia; Berglund, Olof LU and Persson, Anders LU (2012) In Ecotoxicology 21(3). p.803-810
Abstract
Studies of aquatic environments exposed to 17α-ethinylestradiol (EE2) have demonstrated detrimental effects on fish communities. However, much less is known about effects on macro-invertebrates and especially how long-term exposure may affect critical life stages and ultimately population dynamics. We studied the effects of EE2 on relevant endpoints for population growth in two common freshwater gastropods, Radix balthica and Bithynia tentaculata, that differ in reproductive, foraging and anti-predator strategies and endocrine systems. We quantified critical life-history parameters (mortality, somatic growth rate, days to and size at first reproduction, egg production and hatching success) in a concentration-response, life cycle... (More)
Studies of aquatic environments exposed to 17α-ethinylestradiol (EE2) have demonstrated detrimental effects on fish communities. However, much less is known about effects on macro-invertebrates and especially how long-term exposure may affect critical life stages and ultimately population dynamics. We studied the effects of EE2 on relevant endpoints for population growth in two common freshwater gastropods, Radix balthica and Bithynia tentaculata, that differ in reproductive, foraging and anti-predator strategies and endocrine systems. We quantified critical life-history parameters (mortality, somatic growth rate, days to and size at first reproduction, egg production and hatching success) in a concentration-response, life cycle experiment. The two species responded to EE2 exposure in different ways, B. tentaculata showing a significantly lower somatic growth rate and R. balthica a higher somatic growth rate. However, the magnitudes of the effects were small and EE2 exposure did not have any significant effect on estimated population growth rates for the two snail species. The significant effects of EE2 on individual endpoints, but not on population growth rate for both species, emphasise the importance of evaluating higher level effects from long-term exposure studies. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
EDC, EE2, Life cycle, Intrinsic rate of increase, Pulmonate, Prosobranch
in
Ecotoxicology
volume
21
issue
3
pages
803 - 810
publisher
Springer
external identifiers
  • wos:000302065400017
  • pmid:22197991
  • scopus:84862834050
ISSN
1573-3017
DOI
10.1007/s10646-011-0841-8
language
English
LU publication?
yes
id
1c7d37ec-dfc0-4716-b0e4-00d34d08f95f (old id 2273544)
date added to LUP
2012-01-12 14:28:59
date last changed
2017-01-01 05:43:33
@article{1c7d37ec-dfc0-4716-b0e4-00d34d08f95f,
  abstract     = {Studies of aquatic environments exposed to 17α-ethinylestradiol (EE2) have demonstrated detrimental effects on fish communities. However, much less is known about effects on macro-invertebrates and especially how long-term exposure may affect critical life stages and ultimately population dynamics. We studied the effects of EE2 on relevant endpoints for population growth in two common freshwater gastropods, Radix balthica and Bithynia tentaculata, that differ in reproductive, foraging and anti-predator strategies and endocrine systems. We quantified critical life-history parameters (mortality, somatic growth rate, days to and size at first reproduction, egg production and hatching success) in a concentration-response, life cycle experiment. The two species responded to EE2 exposure in different ways, B. tentaculata showing a significantly lower somatic growth rate and R. balthica a higher somatic growth rate. However, the magnitudes of the effects were small and EE2 exposure did not have any significant effect on estimated population growth rates for the two snail species. The significant effects of EE2 on individual endpoints, but not on population growth rate for both species, emphasise the importance of evaluating higher level effects from long-term exposure studies.},
  author       = {Hallgren, Per and Sorita, Zaoia and Berglund, Olof and Persson, Anders},
  issn         = {1573-3017},
  keyword      = {EDC,EE2,Life cycle,Intrinsic rate of increase,Pulmonate,Prosobranch},
  language     = {eng},
  number       = {3},
  pages        = {803--810},
  publisher    = {Springer},
  series       = {Ecotoxicology},
  title        = {Effects of 17α-ethinylestradiol on individual life-history parameters and estimated population growth rates of the freshwater gastropods Radix balthica and Bithynia tentaculata.},
  url          = {http://dx.doi.org/10.1007/s10646-011-0841-8},
  volume       = {21},
  year         = {2012},
}