Publication
Title
Endocrine modulation and toxic effects of two commonly used UV screens on the aquatic invertebrates **Potamopyrgus antipodarum** and **Lumbriculus variegatus**
Author
Abstract
The two UV screens 3-benzylidene-camphor (3-BC) and 3-(4′-methylbenzylidene)-camphor (4-MBC) were tested regarding their toxicity and estrogenic activity. The Yeast Estrogen Screen (YES) and two sediment assays with the freshwater invertebrates Lumbriculus variegatus and Potamopyrgus antipodarum were performed. In the YES, both substances activated the human estrogen receptor α with EC50 values of 44.2 μM for 3-BC and 44.3 μM for 4-MBC, whereby 4-MBC attained only 8% of the maximal response of 17β-estradiol. For P. antipodarum embryo production increased after exposure to both substances (EC50 of 4.60 μM 4-MBC = 1.17 mg kg−1 dw) while mortality increased at high concentrations. The reproduction of L. variegatus was decreased by 3-BC with an EC50 of 5.95 μM (=1.43 mg kg−1 dw) and also by 4-MBC, where no EC50 could be calculated. While reproduction decreased, the worms' weight increased after exposure to 3-BC with an EC50 of 26.9 μM (= 6.46 mg kg−1 dw), hence the total biomass remained unaffected. UV screens can have a significant impact on reproduction and development of aquatic invertebrates.
Language
English
Source (journal)
Environmental pollution. - London
Publication
London : 2008
ISSN
0269-7491
Volume/pages
152:2(2008), p. 322-329
ISI
000254968200008
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 03.01.2011
Last edited 03.11.2017
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