Genetic structure of West Greenland populations of lumpfish Cyclopterus lumpus

Elsa Garcia Mayoral, M. Olsen, R. Hedeholm, Søren Lorenzen Post, Einar Eg Nielsen, Dorte Bekkevold

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

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
Publication statusPublished - 2016

Keywords

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

Cite this

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title = "Genetic structure of West Greenland populations of lumpfish Cyclopterus lumpus",
abstract = "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.",
keywords = "Arctic, Canada, Iceland, fisheries management, genetic differentiation, lumpsucker",
author = "Mayoral, {Elsa Garcia} and M. Olsen and R. Hedeholm and Post, {S{\o}ren Lorenzen} and {Eg Nielsen}, Einar and Dorte Bekkevold",
year = "2016",
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language = "English",
volume = "89",
pages = "2625--2642",
journal = "Journal of Fish Biology",
issn = "0022-1112",
publisher = "Wiley-Blackwell",
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}

Genetic structure of West Greenland populations of lumpfish Cyclopterus lumpus. / Mayoral, Elsa Garcia; Olsen, M.; Hedeholm, R.; Post, Søren Lorenzen; Eg Nielsen, Einar; Bekkevold, Dorte.

In: Journal of Fish Biology, Vol. 89, No. 6, 2016, p. 2625-2642.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Genetic structure of West Greenland populations of lumpfish Cyclopterus lumpus

AU - Mayoral, Elsa Garcia

AU - Olsen, M.

AU - Hedeholm, R.

AU - Post, Søren Lorenzen

AU - Eg Nielsen, Einar

AU - Bekkevold, Dorte

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

KW - Arctic

KW - Canada

KW - Iceland

KW - fisheries management

KW - genetic differentiation

KW - lumpsucker

U2 - 10.1111/jfb.13167

DO - 10.1111/jfb.13167

M3 - Journal article

VL - 89

SP - 2625

EP - 2642

JO - Journal of Fish Biology

JF - Journal of Fish Biology

SN - 0022-1112

IS - 6

ER -