publication . Article . 1986

Endocrine changes associated with spawning behavior and social stimuli in a wild population of rainbow trout (Salmo gairdneri): II. Females

Liley, N.R.; Fostier, Alexis,; Breton, Bernard; Tan, E.S.P.;
Open Access
  • Published: 01 Jan 1986 Journal: General and Comparative Endocrinology, volume 62, pages 157-167 (issn: 0016-6480, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Morocco
Abstract
Rainbow trout (Salmo gairdneri) were collected from a natural spawning population at Pennask Lake, B.C. Blood samples taken from female trout at different stages of spawning were assayed by radioimmunoassay for gonadotropin (GtH), estradiol-17 beta (E2), androgens, including testosterone (T), and 17α-hydroxy-20 β-dihydroprogesterone (17,20-P). Plasma levels of androgen and estradiol were highest in females sampled shortly before ovulation (ogreeno females) and declined in ovulated and sexually active females, reaching lowest levels in postspawning fish. Concentrations of 17,20-P rose markedly in ovulated females allowed to dig nests and interact with sexually ac...
Subjects
Medical Subject Headings: endocrine system
free text keywords: Anatomy, Testosterone, Internal medicine, medicine.medical_specialty, medicine, Salmonidae, biology.organism_classification, biology, Rainbow trout, Salmo, Trout, Spawn (biology), Endocrinology, Population, education.field_of_study, education, Androgen, medicine.drug_class, fish;spawning behavior;behavior;social stimuli, poisson, salmo gairdneri, truite arc en ciel, femelle, hormone animale, reproduction, comportement, comportement de reproduction, fraie, hormone sexuelle, stimulation, fish, spawning behavior, behavior, social stimuli, [SDV]Life Sciences [q-bio]
Funded by
NSERC
Project
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
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publication . Article . 1986

Endocrine changes associated with spawning behavior and social stimuli in a wild population of rainbow trout (Salmo gairdneri): II. Females

Liley, N.R.; Fostier, Alexis,; Breton, Bernard; Tan, E.S.P.;