Genetic structure of West Greenland populations of lumpfish Cyclopterus lumpus

Research output: Research - peer-reviewJournal article – Annual report year: 2016

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In this study, 11 microsatellite markers were used to determine the structure of West Greenlandic lumpfish Cyclopterus lumpus populations across six spawning locations spanning >1500 km and compared with neighbouring populations in Canada and Iceland. To evaluate whether data allow for identification of origin of C. lumpus in Greenlandic waters, genetic assignment analysis was performed for 86 C. lumpus sampled on a feeding migration. Significant structuring with isolation by distance was observed in the West Greenland samples and two major subpopulations, north and south, were suggested. Based on FST values, closer relationships were observed between Greenland and Canada, than Greenland and Iceland. Surprisingly, the North Greenland population showed more similarities with Canadian samples, than did the geographically closer south-west Greenland population. Origin could be assigned for a high proportion of non-spawning fish and demonstrated a marked east-west spatial separation of fish of Greenlandic and Icelandic genotypes.
Original languageEnglish
JournalJournal of Fish Biology
Volume89
Issue number6
Pages (from-to)2625-2642
ISSN0022-1112
DOIs
StatePublished - 2016
CitationsWeb of Science® Times Cited: 3

    Research areas

  • Arctic, Canada, Iceland, fisheries management, genetic differentiation, lumpsucker
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