Líffræðifélag Íslands - biologia.is
Líffræðiráðstefnan 2021
Erindi/veggspjald / Talk/poster E101
Höfundar / Authors: Theresa Henke (1), Snæbjörn Pálsson (1), Jakob Hemmer-Hansen (2), Guðbjörg Ásta Ólafsdóttir (1)
Starfsvettvangur / Affiliations: 1. University of Iceland, 2. Technical University of Denmark (DTU) - aqua
Kynnir / Presenter: Theresa Henke
European flounder (Platichthys flesus) is a non-indigenous flatfish species that has been observed in Icelandic waters since 1999 and can currently be found in most parts of the country. While monitoring and impact assessment are crucial parts of management strategies for introduced species, determining the source of introduction is equally important. Two hypotheses have been raised, first that P. flesus arrived in ballast water from central Europe or second, that it originates from the Faroe Islands. A previous microsatellite analysis had indicated that P. flesus in the Faroe Islands were genetically isolated from other European populations. Using the same genetic markers, 301 P. flesus samples from 10 sampling sites around Iceland have been analyzed and compared to reference data. Preliminary results of this ongoing project indicate that the Icelandic population originates from the Faroe Islands. Furthermore, the data revealed possible hybridization of P. flesus with native European plaice (Pleuronectes platessa) on two sample sites. Preliminary analysis and results will be presented, and further steps of this project will be introduced.