Abstract：
:Recently, a large-scale field study in The Netherlands has focused on the effects of estrogenic contaminants on feral fish populations. The freshwater bream (Abramis brama) and the estuarine flounder (Platichthys flesus) were sampled at a large number of locations in the spring and autumn of 1999. Concentrations of the yolk protein vitellogenin (VTG) in blood plasma of male flounders were small at most sites. At two sites, however, moderately elevated concentrations were found in autumn. Both sites were situated in the same industrial harbour zone also receiving effluent from sewage treatment works. At many sites VTG levels in male bream were significantly greater than at the control site. The greatest concentrations were observed in individuals collected from a small stream, close to the discharge of a relatively large municipal waste water treatment plant. This was also the only site where considerable intersex occurred; 37% of male bream exhibited ovotestes. Ovotestis was not observed in any of the male flounder captured. The results from The Netherlands are briefly discussed and compared with the well-known case studies in the UK.
journal_name
Toxicologyjournal_title
Toxicologyauthors
Vethaak AD,Lahr J,Kuiper RV,Grinwis GC,Rankouhi TR,Giesy JP,Gerritsen Adoi
10.1016/s0300-483x(02)00271-8keywords:
subject
Has Abstractpub_date
2002-12-27 00:00:00pages
147-50eissn
0300-483Xissn
1879-3185pii
S0300483X02002718journal_volume
181-182pub_type
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