Intersex in feral marine and freshwater fish from northeastern Germany

Gercken, Jens; Sordyl, H.

doi:10.1016/s0141-1136(02)00156-3

Cited by 73 publications

(46 citation statements)

References 7 publications

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“…Until the early 1990s intersex had only rarely been described from fish in the wild (Jafri and Ensor, 1979;Slooff and Kloowijk-Vandijk, 1982;Blachuta et al, 1991). However, the condition has now been detected in several wild freshwater and migratory species, including roach Rutilus rutilus (Jafri and Ensor, 1979;Purdom et al, 1994;Jobling et al, 1998), gudgeon Gobio gobio (van Aerle et al, 2001), barbel Barbus plebejus (Vigano et al, 2001), chub Leuciscus cephalus (Minier et al, 2000), bream Abramis brama (Slooff and Kloowijk-Vandijk 1982), white perch Morone americana (Kavanagh et al, 2002), stickleback Gasterosteus aculeatus (Gercken and Sordyl, 2002), coregonids (Mikaelian et al, 2002), grayling Thymallus thymallus (Blachuta et al, 1991) and Atlantic salmon Salmo salar (authors' pers. obs.).…”

Section: Assessment Of the Applicability Of Intersex Measurement Acromentioning

confidence: 99%

“…This is supported by reports of elevated plasma vitellogenin and ovotestis in male Mediterranean swordfish Xiphias gladius (Fossi et al, 2001 andDe Metrio et al, 2003, respectively), and the dab Limanda limanda (Scott et al, 2007;Stentiford and Feist, 2005, respectively). In terms of species of relevance to the OSPAR region, those in which intersexuality (ovotestis) have been described from marine and estuarine habitats include flounder (Allen et al, 1999b;Stentiford et al, 2003, Bateman et al, 2004, dab (Stentiford and Feist, 2005), viviparous blenny (Stentiford et al, 2003;Lyons et al, 2004), red mullet (Martin-Skilton et al, 2006) and the 3-spined stickleback (Gercken and Sordyl, 2002).…”

Section: Assessment Of the Applicability Of Intersex Measurement Acromentioning

confidence: 99%

“…Up to 20% (Allen et al, 1999a) Up to 9% (Allen et al, 1999b) Up to 8% (Minier et al, 2000) Up to 8.3% (Stentiford et al, 2003) Viviparous blenny (Zoarces viviparus) Up to 27.8% (Gercken and Sordyl, 2002) Up to 25% (Stentiford et al, 2003) Dab (Limanda limanda) Up to 14.3% (Stentiford and Feist, 2005) Red mullet (Mullus barbatus) Up to 14.3% (Martin-Skilton et al, 2006) Stickleback (Gasterosteus aculeatus) Up to 12.5% (Gercken and Sordyl, 2002) 2) Given the fact that intersex appears to exist at a range of between 0 and 27.8% in different monitoring species, a sampling regime based upon detection of 5% prevalence at 95% confidence appears appropriate. Furthermore, multi-site work in several species (e.g.…”

Section: Flounder (Platichthys Flesus)mentioning

confidence: 99%

See 2 more Smart Citations

The Distribution of the MusselMytilusSpecies Along the Norwegian Coast

Brooks

Farmen

2013

Journal of Shellfish Research

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Section: Assessment Of the Applicability Of Intersex Measurement Acromentioning

confidence: 99%

Section: Assessment Of the Applicability Of Intersex Measurement Acromentioning

confidence: 99%

Section: Flounder (Platichthys Flesus)mentioning

confidence: 99%

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The Distribution of the MusselMytilusSpecies Along the Norwegian Coast

Brooks

Farmen

2013

Journal of Shellfish Research

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“…Recently, several studies have examined sexual differentiation and ratios in fish [52] [53]. Many of these findings point toward the presence of endocrine-disrupting chemicals (EDCs) released into the aquatic environment as a major component of disturbing the typical sexual differentiation and ratios within fish.…”

Section: Sex Ratios In Adults Raised In Impaired Waters Are Skewed Whmentioning

confidence: 99%

Expanding the Indicator Bacteria Concept: A Novel Approach to Assess Ecosystem Risk in Impaired Waters

Carrara¹,

Settell²,

Andrews³

et al. 2015

JWARP

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Many studies report the relationship between coliform indicator bacteria levels and the overall quality of environmental water for public use. This study, an outgrowth of a long-term watermonitoring program within the upper Appomattox River (Virginia) watershed, employs a zebrafish model to examine the relationship between impaired stream water and aquatic vertebrate development. We report results that suggest an expansion of the indicator bacteria concept, showing a possible relationship between waters containing high levels of the indicator bacterium, Escherichia coli (E. coli), with developmental defects upon zebrafish embryos. These effects are not directly attributable to bacterial presence, as filtered test waters void of bacteria produce the same results in embryos, indicating these developmental defects are due to the presence of other toxins or contaminants. Fish embryos exposed to the test waters show reduced survivorship and altered brain and heart development. Furthermore, fish surviving to adulthood exhibit altered gonads and skewed sex ratios. We suggest that this broadly focused approach examining the complex interactions (biotic and abiotic) within raw water sources could be used in conjunction with traditional chemical assays and/or dose-response studies on vertebrate models for a more complete analysis of stream water quality conditions.

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“…Further, intersexuality seems to be associated with the presence of STW effluents. Recent research has demonstrated that intersex fish can also be found in polluted areas of the marine environment [7,8], and that they are not confined to the United Kingdom; intersex fish occur in Spain, [9], Germany, [10], and Italy [11]. Hopefully, research presently underway will better define exactly where intersex fish are found (in what countries, and at which sites in these countries), and how badly affected the fish are.…”

Section: The Next Few Yearsmentioning

confidence: 99%

Endocrine disruption in wildlife: The future?

Sumpter

2003

Pure and Applied Chemistry

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Probably the only thing that can be said with certainty about the future of this field of ecotoxicology is that predicting it is foolish; the chances of being right are very slim. Instead, it seems to me likely that unexpected discoveries will probably have more influence on the field of endocrine disruption than the outcomes of all the planned experiments. It is certainly true that chance discoveries, such as masculinized fish in rivers receiving paper-mill effluent, imposex in molluscs due to exposure to tributyltin, and feminized fish in rivers receiving effluent from sewage-treatment works, have been pivotal in the development of the field of endocrine disruption in wildlife. I consider that further such discoveries are likely, but I do not know which species will be affected, what effects will be found, what chemical(s) will be the cause, or what endocrine mechanism(s) will underlie the effects. The recent realization that many pharmaceuticals are present in the aquatic environment only underscores the range of effects that could, in theory at least, occur in exposed wildlife. What is somewhat easier to predict is the research that will be conducted in the immediate future, which will build upon what is known already. For example, it is clear that wildlife is rarely, if ever, exposed to single chemicals, but instead is exposed to highly complex, ill-defined mixtures of chemicals, including many that are endocrine active in various ways. We need to understand much better how chemicals interact, and what overall effects will occur upon exposure to such mixtures. We also need to move from assessing effects at the individual organism level, to understanding the consequences of these effects at the population level. Then, we need to determine the significance of any population-level effects due to endocrine disruption in comparison with the impact of many other significant stressors (e.g., over-exploitation, habitat loss, climate change) that also negatively impact wildlife. Such research will be difficult, and time-consuming, and will probably produce many surprises. All I can be fairly certain about is that the next few years are likely to be as interesting and exciting as the last few have been.

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Intersex in feral marine and freshwater fish from northeastern Germany

Cited by 73 publications

References 7 publications

The Distribution of the MusselMytilusSpecies Along the Norwegian Coast

The Distribution of the MusselMytilusSpecies Along the Norwegian Coast

Expanding the Indicator Bacteria Concept: A Novel Approach to Assess Ecosystem Risk in Impaired Waters

Endocrine disruption in wildlife: The future?

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