Publication details.

Paper

Year:2018
Author(s):A. Viret, D. Tsaparis, C.S. Tsigenopoulos, P. Berrebi, A. Sabatini, M. Arculeo, C. Fassatoui, A. Magoulas, M. Marengo, B. Morales-Nin, N. Caill-Milly, E.D.H. Durieux
Title:Absence of spatial genetic structure in common dentex (Dentex dentex Linnaeus, 1758) in the Mediterranean Sea as evidenced by nuclear and mitochondrial molecular markers
Journal:PLoS One
ISSN:1932-6203
Volume:13
Issue No.:9
Pages:0203866
D.O.I.:10.1371/journal.pone.0203866
Abstract:The common dentex, Dentex dentex, is a fish species which inhabits marine environments in the Mediterranean and Northeast Atlantic regions. This is an important species from an ecological, economic and conservation perspective, however critical information on its population genetic structure is lacking. Most samples were obtained from the Mediterranean Sea (17 sites) with an emphasis around Corsica (5 sites), plus one Atlantic Ocean site. This provided an opportunity to examine genetic structuring at local and broader scales to provide science based data for the management of fishing stocks in the region. Two mitochondrial regions were examined (D-loop and COI) along with eight microsatellite loci. The COI data was combined with publicly available sequences and demonstrated past misidentification of common dentex. All markers indicated the absence of population genetic structure from the Bay of Biscay to the eastern Mediterranean Sea. Bayesian approaches, as well as the statistical tests performed on the allelic frequencies from microsatellite loci, indicated low differentiation between samples; there was only a slight (p = 0.05) indication of isolation by distance. Common dentex is a marine fish species with a unique panmictic population in the Mediterranean and likely in the Atlantic Ocean as well.

Related staff

  • Beatriz Morales Nin
  • Related departments

  • Marine Ecology
  • Related research groups

  • Marine Ecosystems Dynamics