Gene flow, multilocus assignment and genetic structuring of the european hake (merluccius merluccius)

• Autores: Alfonso Pita Bugallo, Pablo Presa Martínez
• Localización: Thalassas: An international journal of marine sciences, ISSN 0212-5919, Vol. 26, Nº. 2, 2010, págs. 129-133
• Idioma: inglés
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• Resumen

  • Incorporating population genetic data into assessment processes would prove useful for the management of hake fisheries. We have analysed the molecular variation of five polymorphic microsatellites and a 465 bp fragment from the cytochrome b gene on 27 hake populations to determine the genetic status of this species across European fisheries. While weak genetic differences (FCT = 0.0092, P < 0.01) exist between the seven major oceanographic regions considered (North Sea, Celtic Sea, Cantabrian Sea, Iberian Atlantic, Iberian Mediterranean, Tyrrhenian Sea and Canarian Sea), the deepest partition resides between Atlantic and Mediterranean populations. However, the probability of the 712 multilocus genotypes scored to be assigned to Atlantic or to Mediterranean basins is fairly 0.5, indicating that these two geographical stocks cannot be reliably identified from each other neither for fishery forensics nor for commercial traceability.