Serial monogamy in the European long-snouted seahorse Hippocampus guttulatus

Lucy C. Woodall, Heather J. Koldewey, Paul William Shaw

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Abstract

Seahorses (Hippocampus spp.) are non-sex-role-reversed members of the Syngnathidae family that provide extensive brood care. Previous studies of seahorses have revealed monogamy within a single brood, but their longer term mating system had not been comprehensively evaluated. The parental contribution to 29 wild-born broods of Hippocampus guttulatus, sampled from six Portuguese populations with differing seahorse densities and sex ratios, was assessed using microsatellite DNA markers. To assess the longer term genetic mating system of this species parentage was determined in eleven broods sampled from a captive population over two breeding seasons. Genetic data suggest that this socially polygamous seahorse is serially monogamous across breeding seasons, i.e. monogamous within a season but may switch mates between seasons, and that differing population densities and sex ratios do not affect the mating system.
Original languageEnglish
Pages (from-to)1645-1649
Number of pages5
JournalConservation Genetics
Volume12
Issue number6
DOIs
Publication statusPublished - 03 Aug 2011

Keywords

  • Seahorse
  • Hippocampus guttulatus
  • Serial monogamy
  • Mating system

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