ub.xmlui.mirage2.page-structure.muninLogoub.xmlui.mirage2.page-structure.openResearchArchiveLogo
    • EnglishEnglish
    • norsknorsk
  • Velg spraaknorsk 
    • EnglishEnglish
    • norsknorsk
  • Administrasjon/UB
Vis innførsel 
  •   Hjem
  • Fakultet for biovitenskap, fiskeri og økonomi
  • Institutt for arktisk og marin biologi
  • Artikler, rapporter og annet (arktisk og marin biologi)
  • Vis innførsel
  •   Hjem
  • Fakultet for biovitenskap, fiskeri og økonomi
  • Institutt for arktisk og marin biologi
  • Artikler, rapporter og annet (arktisk og marin biologi)
  • Vis innførsel
JavaScript is disabled for your browser. Some features of this site may not work without it.

Status specific tailoring of sperm behavior in an external fertilizer

Permanent lenke
https://hdl.handle.net/10037/10631
DOI
https://doi.org/10.3389/fevo.2016.00135
Thumbnail
Åpne
article.pdf (767.1Kb)
Main article (PDF)
Dato
2016-11-24
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Egeland, Torvald Blikra; Rudolfsen, Geir; Nordeide, Jarle Tryti; Folstad, Ivar
Sammendrag
Why dominant males experiencing intense sperm competition sometimes show low investments in sperm production is not always obvious. One well-documented example is that of the external fertilizing teleost, the Arctic charr (Salvelinus alpinus), where individuals becoming dominant reduce sperm production and sperm swimming speed in water compared to subordinates. Here, we report how ovarian fluid differentially influences sperm velocity of dominant and subordinate male Arctic charr. That is, sperm from dominant males increase their velocity in water diluted ovarian fluid compared to that observed in water, while sperm from subordinates, on the other hand, decrease velocity in ovarian fluid compared to that observed in water. Thus, subordinates, who invest more resources in their sperm and usually show the highest sperm velocity in water, have lower gains from their investment than dominant males when sperm are swimming in ovarian fluid. In sum, our result suggests that ovarian fluid increase sperm velocity more in dominant males than in subordinate males. Although this finding could partly be caused by cryptic female choice exerted by the ovarian fluid for sperm from dominant males, an alternative and more parsimonious explanation is that sperm from dominant males may simply be better designed for swimming in ovarian fluid compared to sperm from subordinate males. Thus, sperm production in the two reproductive roles seems to be adaptively tailored to different external environments.
Beskrivelse
Published version. Source at https://doi.org/10.3389/fevo.2016.00135
Forlag
Frontiers Media
Sitering
Egeland T, Rudolfsen G, Nordeide JT, Folstad I. Status specific tailoring of sperm behavior in an external fertilizer. Frontiers in Ecology and Evolution. 2016;4(135)
Metadata
Vis full innførsel
Samlinger
  • Artikler, rapporter og annet (arktisk og marin biologi) [1630]

Bla

Bla i hele MuninEnheter og samlingerForfatterlisteTittelDatoBla i denne samlingenForfatterlisteTittelDato
Logg inn

Statistikk

Antall visninger
UiT

Munin bygger på DSpace

UiT Norges Arktiske Universitet
Universitetsbiblioteket
uit.no/ub - munin@ub.uit.no

Tilgjengelighetserklæring