2010
DOI: 10.1002/etc.118
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Investigating the link between pulp mill effluent and endocrine disruption: Attempts to explain the presence of intersex fish in the Wabigoon River, Ontario, Canada

Abstract: The ability of some pulp mill effluents (PME) to act as reproductive and endocrine disrupters in fish is well documented in the literature. However, changes are not always consistent with regard to species, gender, hormones, or reproductive effects. In the present study, the presence of the first intersexed fish that, to our knowledge, has been found in a Canadian river exposed to PME, is reported. A field survey of the Wabigoon River near Dryden, Ontario, in the fall of 2000 found intersexed walleye (Sander v… Show more

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Cited by 26 publications
(20 citation statements)
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“…The present study indicates that genistein, daidzein, and formononetin are attenuated rapidly in the environment, and they are unlikely to cause widespread ecological harm in surface waters, except in the cases of female minnow egg production and larval survival. This points to a need for perhaps more treatment of anthropogenic phytoestrogen sources during critical developmental periods (e.g., larval development) and in locations where high concentrations of phytoestrogens are likely, such as industrial discharges or discharges from municipal wastewater treatment plants that receive waste from particular industries . Furthermore, effluent discharge sites often attract fish because of higher water temperatures and greater nutrient supplies, which may result in fish being exposed continuously to phytoestrogens at higher concentrations than can be expected below the mixing zone.…”
Section: Discussionmentioning
confidence: 99%
“…The present study indicates that genistein, daidzein, and formononetin are attenuated rapidly in the environment, and they are unlikely to cause widespread ecological harm in surface waters, except in the cases of female minnow egg production and larval survival. This points to a need for perhaps more treatment of anthropogenic phytoestrogen sources during critical developmental periods (e.g., larval development) and in locations where high concentrations of phytoestrogens are likely, such as industrial discharges or discharges from municipal wastewater treatment plants that receive waste from particular industries . Furthermore, effluent discharge sites often attract fish because of higher water temperatures and greater nutrient supplies, which may result in fish being exposed continuously to phytoestrogens at higher concentrations than can be expected below the mixing zone.…”
Section: Discussionmentioning
confidence: 99%
“…However, the mechanistics of EDC impact in molluscs remains an area where more research effort is required. Besides exposure to STW effluents and generalised estuarine pollution, endocrine disruption in a range of species has been reported to be associated with agriculture (McCoy et al, 2008;Orton and Routledge, 2011); aquaculture (Ford et al, 2007); pharmaceutical manufacture (Sanchez et al, 2011); paper mill effluent (Pollock et al, 2010) and urbanisation (Schultz et al, 2013;Skelly et al, 2010). Given the very broad range of agricultural activities, industry, urbanisation and population density within the catchments bordering the Channel region; the superimposition of natural variables such as rainfall, run-off, hydrodynamic regimes and sediment dynamics; together with the wide range of potential causative chemicals, it is perhaps not surprising that such complex patterns of intersex in S. plana were apparent across the survey area.…”
Section: Discussionmentioning
confidence: 99%
“…been the case of some marine gastropod molluscs, whereby male characteristics (penis and vas deferens) were superimposed onto females in response to TBT exposure derived from antifouling paints which, in severe cases in some species resulted in sterility and population decline (Barroso et al, 2000;Bauer et al, 1995Bauer et al, , 1997Bryan et al, 1993Bryan et al, , 1986bBryan et al, , 1987Gibbs et al, 1991aGibbs et al, , 1987Gibbs et al, , 1988Gibbs et al, , 1991bOehlmann et al, 1998). The opposite response, feminisation of male individuals, has been most widely reported in freshwater fish exposed to EDCs derived from sewage treatment works and other sources (Hinck et al, 2009;Jobling et al, 1998;McGee et al, 2012;Pollock et al, 2010;Sanchez et al, 2011;Tetreault et al, 2011;Vajda et al, 2011). However, the physical manifestation of intersex (feminization) may take several forms including production of the egg-yolk precursor protein vitellogenin (Arukwe et al, 2000;Harries et al, 1997;Kime et al, 1999;Leonardi et al, 2010;Matozzo et al, 2008;Routledge et al, 1998); formation of female-like ducts (Jobling et al, 2002;Liney et al, 2005;Nolan et al, 2001); and the occurrence of oocytes in testicular tissue (ovotestis) (Bateman et al, 2004;Chesman and Langston, 2006;Langston et al, 2007;Liney et al, 2005;Matthiessen et al, 2002;Nadzialek et al, 2010;Stentiford and Feist, 2005;Stentiford et al, 2003).…”
Section: Introductionmentioning
confidence: 96%
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“…As postulated by Madenjian et al [24,42], factors other than the GSI of males, along with the GSI of males, contribute to the relative difference in Hg-elimination rates between the sexes. Endocrine disruptors have been linked to reduced concentrations of androgens in male fish [43], and endocrine disruptors have also been linked to testicular tumors in mammals [44]. Hence, in theory, endocrine disruption could have contributed to the relatively modest difference in the two ratios for the Kewaunee River white suckers.…”
Section: Discussionmentioning
confidence: 99%