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Both ovarian fluid and female urine increase sex steroid hormone levels in mature Atlantic salmon (Salmo salar) male parr
Södertörn University College, Avdelning Naturvetenskap.
2001 (English)In: Journal of Chemical Ecology, ISSN 0098-0331, E-ISSN 1573-1561, Vol. 27, no 11, 2337-2349 p.Article in journal (Refereed) Published
Abstract [en]

We compared the ability of urine and ovarian fluid from female Atlantic salmon (Salmo salar) to stimulate increase in plasma concentrations of sex steroid hormones in mature conspecific male parr (priming effect of the stimuli). We also tested the hypothesis that prostaglandin F-2 alpha (PGF(2 alpha)) may act as a priming pheromone in the tested stimulants. Individual males of salmon parr were exposed to female urine, ovarian fluid, urine-ovarian fluid mix, or PGF(2 alpha) Plasma concentrations of the sex steroids of 17,20 beta -dihydroxy-4-pregnen-3-one (17,20 beta -P) were higher in males exposed to urine, ovarian fluids, and PGF(2 alpha), compared to control males. PGF(2 alpha). and a mixture of urine and ovarian fluid also gave increased concentrations of 11-ketotestosterone (11-KT). Concentrations of PGF(2 alpha) were higher in ovarian fluids than in urine. A behavior test with mature male part in a fluviarium showed neither attraction to nor avoidance of 0.1 nM PGF(2 alpha), but plasma levels of 17,20 beta -P were significantly higher in exposed males compared to controls.

Place, publisher, year, edition, pages
2001. Vol. 27, no 11, 2337-2349 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:sh:diva-5860DOI: 10.1023/A:1012243323670ISI: 000172224400014OAI: oai:DiVA.org:sh-5860DiVA: diva2:393656
Available from: 2011-01-31 Created: 2011-01-31 Last updated: 2011-01-31Bibliographically approved

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Olsén, K Håkan
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf