title: Ovarian fluid influences sperm performance in lake trout, Salvelinus namaycush.
abstract: The objectives of this study were to determine whether (i) the presence and concentration of ovarian fluid (OF) affects sperm performance traits, and (ii) variation in sperm performance traits is due to male identity, female identity, and/or male×female interactions in lake trout, Salvelinus namaycush. Spermatozoa from four males were activated in river water and OF from four females at two concentrations (10 and 15%). Presence of ovarian fluid influenced sperm traits; no differences were detected between 10 and 15% OF. Sperm traits varied depending on parental identity, such that sperm of some males perform better in the OF of all females and that in OF of some females sperm traits are higher for all males.
authors.affiliation: Department of Biological Sciences, University of Windsor, 401 Sunset Ave., Windsor, Ontario N9B 3P4, Canada.
authors.forename: Patrick M
authors.initials: PM
authors.lastname: Galvano
authors.forename: Katelynn
authors.initials: K
authors.lastname: Johnson
authors.forename: Chris C
authors.initials: CC
authors.lastname: Wilson
authors.forename: Trevor E
authors.initials: TE
authors.lastname: Pitcher
authors.forename: Ian A E
authors.initials: IA
authors.lastname: Butts
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D017756:Aquaculture / Q000379:methods; D005260:Female; D015571:Follicular Fluid / Q000737:chemistry*; D008297:Male; D010053:Ovary / Q000737:chemistry*; D013081:Sperm Motility / Q000187:drug effects* / Q000502:physiology; D013094:Spermatozoa / Q000187:drug effects* / Q000502:physiology; D014337:Trout / Q000502:physiology*