Kinship analysis of brook trout Salvelinus fontinalis during their breeding migration

Microsatellite markers were used to test whether groups of pre‐spawning adult brook trout Salvelinus fontinalis from the same population and captured at the same location during their breeding migration comprised kin. Only weak evidence for kin associations was found at the onset of breeding: the pr...

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Bibliographic Details
Published in:Journal of fish biology 2013-05, Vol.82 (5), p.1514-1522
Main Authors: Meli, A., Fraser, D. J.
Format: Article
Language:English
Subjects:
Agnatha. Pisces
Animal and plant ecology
Animal Migration - physiology
Animal, plant and microbial ecology
Animals
Biological and medical sciences
Female
Fish
Fontinalis
Fresh water ecosystems
Fundamental and applied biological sciences. Psychology
Genetic Variation
Male
Microsatellite Repeats - genetics
population
Quebec
Reproduction - physiology
Rivers
salmonid
Salvelinus fontinalis
sex bias
social organization
Synecology
Trout - genetics
Trout - physiology
Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
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Summary:Microsatellite markers were used to test whether groups of pre‐spawning adult brook trout Salvelinus fontinalis from the same population and captured at the same location during their breeding migration comprised kin. Only weak evidence for kin associations was found at the onset of breeding: the proportion of kin captured at the same location was low and similar to the proportion found across all locations and the average relatedness of S. fontinalis captured at the same location was low. A dilution of kin associations from the feeding to breeding phase is hypothesized to stem from mainly natural mortality that reduces family size by the adult stage. The results illustrate the dynamic nature of kin associations between consecutive life stages, even within the same fish population.
ISSN:0022-1112
1095-8649
DOI:10.1111/jfb.12082