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Male goldfish repro...
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Bjerselius, Rickard
(author)
Male goldfish reproductive behaviour and physiology are severely affected by exogenous exposure to 17 beta-estradiol
- Article/chapterEnglish2001
Publisher, publication year, extent ...
Numbers
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LIBRIS-ID:oai:DiVA.org:sh-5872
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https://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-5872URI
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https://doi.org/10.1016/S0166-445X(00)00160-0DOI
Supplementary language notes
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Language:English
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Summary in:English
Part of subdatabase
Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Mature male goldfish were exposed to different concentrations of the natural hormone 17 beta -estradiol (El). Two methods of exposure were employed, via ingestion at 0, 1, 10 and 100 ug/g food and via the water at 0, 1 and 10 mug/l. The fish were exposed fur 74-28 days during the spawning period. The males were then paired with an artificially induced, spawning female and their sexual behaviour was observed during a 15 min period. The physiological status of the fish was also examined with respect to GSI. presence of milt and spawning tubercles and the blood plasma concentration of E-2. Despite the relatively short exposure period. exposure to physiological levels of E-2 was shown to severely affect the male goldfish reproductive behaviour and physiology. In conclusion, the results from this study and the ability to interpret the effects on this well-studied species, show that the effects of E-2, and possibly other estrogenic EDCs have severe effects at several vital levels of male goldfish reproduction. The results also suggests that the hormone E-2 can act as an endocrine disrupting chemical (EDC) in the environment.
Subject headings and genre
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NATURAL SCIENCES
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NATURVETENSKAP
Added entries (persons, corporate bodies, meetings, titles ...)
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Lundstedt-Enkel, Katrin
(author)
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Olsén, K Håkan
(author)
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Mayer, Ian
(author)
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Dimberg, K
(author)
Related titles
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In:Aquatic Toxicology53:2, s. 139-1520166-445X1879-1514
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