Comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern Scotia Arc, Antarctica
The Antarctic Fish fauna is characterized by high endemism and low species diversity with one perciform suborder, the Notothenioidei, dominating the whole species assemblage on the shelves and slopes. Notothenioids diversified in situ through adaptive radiation and show a variety of life history str...
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ftopenagrar:oai:www.openagrar.de:timport_mods_00016352 2023-05-15T14:06:31+02:00 Comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern Scotia Arc, Antarctica Damerau, Malte Matschiner, Michael Salzburger, Walter Hanel, Reinhold 2012 13 https://doi.org/10.1007/s00300-012-1155-x https://www.openagrar.de/receive/timport_mods_00016352 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00048535/dn050435.pdf eng eng Polar biology -- Polar Biol -- 0722-4060 -- 1432-2056 -- 584850-7 -- 1478942-5 -- http://link.springer.com/journal/300 -- http://www.bibliothek.uni-regensburg.de/ezeit/?1478942 https://doi.org/10.1007/s00300-012-1155-x https://www.openagrar.de/receive/timport_mods_00016352 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00048535/dn050435.pdf all rights reserved only signed in user info:eu-repo/semantics/openAccess Text ddc:630 Notothenioids adaptive radiation Scotia Arc Dispersal Isolation-with-migration Population genetics article Text 2012 ftopenagrar https://doi.org/10.1007/s00300-012-1155-x 2023-03-06T00:07:33Z The Antarctic Fish fauna is characterized by high endemism and low species diversity with one perciform suborder, the Notothenioidei, dominating the whole species assemblage on the shelves and slopes. Notothenioids diversified in situ through adaptive radiation and show a variety of life history strategies as adults ranging from benthic to pelagic modes. Their larval development is unusually long, lasting from a few months to more than a year, and generally includes a pelagic larval stage. Therefore, the advection of eggs and larvae with ocean currents is a key factor modulating population connectivity. Here, we compare the genetic population structures and gene flow of seven ecologically distinct notothenioid species of the southern Scotia Arc based on nuclear microsatellites and mitochondrial DNA sequences (D-loop/cytochrome b). The seven species belong to the families Nototheniidae (Gobionotothen gibberifrons, Lepidonotothen squamifrons, Trematomus eulepidotus, T. newnesi) and Channichthyidae (Chaenocephalus aceratus, Champsocephalus gunnari, Chionodraco rastrospinosus). Our results show low-population differentiation and high gene flow for all investigated species independent of their adult life history strategies. In addition, gene flow is primarily in congruence with the prevailing ocean current system, highlighting the role of larval dispersal in population structuring of notothenioids. Article in Journal/Newspaper Antarc* Antarctic Antarctica Polar Biology OpenAgrar (OA) Antarctic The Antarctic Polar Biology 35 7 1073 1086 |
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Text ddc:630 Notothenioids adaptive radiation Scotia Arc Dispersal Isolation-with-migration Population genetics |
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Text ddc:630 Notothenioids adaptive radiation Scotia Arc Dispersal Isolation-with-migration Population genetics Damerau, Malte Matschiner, Michael Salzburger, Walter Hanel, Reinhold Comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern Scotia Arc, Antarctica |
topic_facet |
Text ddc:630 Notothenioids adaptive radiation Scotia Arc Dispersal Isolation-with-migration Population genetics |
description |
The Antarctic Fish fauna is characterized by high endemism and low species diversity with one perciform suborder, the Notothenioidei, dominating the whole species assemblage on the shelves and slopes. Notothenioids diversified in situ through adaptive radiation and show a variety of life history strategies as adults ranging from benthic to pelagic modes. Their larval development is unusually long, lasting from a few months to more than a year, and generally includes a pelagic larval stage. Therefore, the advection of eggs and larvae with ocean currents is a key factor modulating population connectivity. Here, we compare the genetic population structures and gene flow of seven ecologically distinct notothenioid species of the southern Scotia Arc based on nuclear microsatellites and mitochondrial DNA sequences (D-loop/cytochrome b). The seven species belong to the families Nototheniidae (Gobionotothen gibberifrons, Lepidonotothen squamifrons, Trematomus eulepidotus, T. newnesi) and Channichthyidae (Chaenocephalus aceratus, Champsocephalus gunnari, Chionodraco rastrospinosus). Our results show low-population differentiation and high gene flow for all investigated species independent of their adult life history strategies. In addition, gene flow is primarily in congruence with the prevailing ocean current system, highlighting the role of larval dispersal in population structuring of notothenioids. |
format |
Article in Journal/Newspaper |
author |
Damerau, Malte Matschiner, Michael Salzburger, Walter Hanel, Reinhold |
author_facet |
Damerau, Malte Matschiner, Michael Salzburger, Walter Hanel, Reinhold |
author_sort |
Damerau, Malte |
title |
Comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern Scotia Arc, Antarctica |
title_short |
Comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern Scotia Arc, Antarctica |
title_full |
Comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern Scotia Arc, Antarctica |
title_fullStr |
Comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern Scotia Arc, Antarctica |
title_full_unstemmed |
Comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern Scotia Arc, Antarctica |
title_sort |
comparative population genetics of seven notothenioid fish species reveals high levels of gene flow along ocean currents in the southern scotia arc, antarctica |
publishDate |
2012 |
url |
https://doi.org/10.1007/s00300-012-1155-x https://www.openagrar.de/receive/timport_mods_00016352 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00048535/dn050435.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Polar Biology |
genre_facet |
Antarc* Antarctic Antarctica Polar Biology |
op_relation |
Polar biology -- Polar Biol -- 0722-4060 -- 1432-2056 -- 584850-7 -- 1478942-5 -- http://link.springer.com/journal/300 -- http://www.bibliothek.uni-regensburg.de/ezeit/?1478942 https://doi.org/10.1007/s00300-012-1155-x https://www.openagrar.de/receive/timport_mods_00016352 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00048535/dn050435.pdf |
op_rights |
all rights reserved only signed in user info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s00300-012-1155-x |
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Polar Biology |
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35 |
container_issue |
7 |
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1073 |
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1086 |
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1766278339099623424 |