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Effects of an endocrine disruptor on anxiety behaviour in fish: Examples from zebrafish and guppy
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Environmental toxicology. Södertörns Högskola.ORCID iD: 0000-0002-2608-5458
2013 (English)In: International Behavioral Neuroscience Society: Annual Meeting Program and Abstracts, 2013, 32-33 p.Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Animal behaviours such as foraging, predator avoidance, migration, exploration and reproduction are all essential for the survival of the individual as well as the population. Behaviours are integrated end-points of several physiological factors affected by the biotic, social and a-biotic environment, and involves the central nervous system, muscular control, the different senses and a number of hormones. Anthropogenic chemicals released from e.g. agriculture, industrial production, forestry and sewage treatment may interfere with these physiological processes and ultimately cause disturbances in animal behaviour. Disruption of the endocrine system has caught much attention in aquatic toxicology, with much focus on disruption of reproductive behaviour and fertility of exposed fishes. However, mammalian examples suggest that the hormonal axis dealing with the coping of stress (Hypothalamo-Pituitary-Adrenal axis) also is very sensitive to endocrine disruptors. Tests examining stress related behaviours such as fear, anxiety, shoaling and exploration have recently been developed for fish models such as zebrafish. These tests have been suggested as useful tools in development of new psychoactive pharmaceuticals but can also be applied to behaviour toxicology . Our studies using two of these behaviour tests, the novel tank diving test and shoaling test, on Zebrafish and Guppy show that low doses of the synthetic oestrogen Ethynylestradiol-17α can affect both anxiety and shoal adhesive behaviour of exposed fish. We suggest that in fishes the susceptibility to potent endocrine disruptors in stress related behaviours is equal to that of reproductive end-points. 

Place, publisher, year, edition, pages
2013. 32-33 p.
Series
Abstracts of the International Behavioral Neuroscience Society, 22
National Category
Other Biological Topics
Research subject
Biology with specialization in Environmental Toxicology
Identifiers
URN: urn:nbn:se:uu:diva-253983OAI: oai:DiVA.org:uu-253983DiVA: diva2:816866
Conference
International Behavioral Neuroscience Society meeting, Malahide, County Dublin, Ireland, June 25-30, 2013
Funder
The Foundation for Baltic and East European Studies
Available from: 2015-06-04 Created: 2015-06-04 Last updated: 2015-06-30Bibliographically approved

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Hallgren, Stefan

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