Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica
Meganyctiphanes norvegica (M. Sars 1856), the northern krill, is the largest and most abundant euphausiid species in the northern hemisphere, where it represents a key component of many pelagic communities. Although planktonic, krill could be considered a nektonic organism, as it is capable of activ...
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INTER-RESEARCH, NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
2005
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Online Access: | http://hdl.handle.net/11577/2442933 https://doi.org/10.3354/meps289225 |
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ftunivpadovairis:oai:www.research.unipd.it:11577/2442933 2024-02-11T10:05:44+01:00 Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica PAPETTI, CHIARA ZANE, LORENZO PATARNELLO, TOMASO BORTOLOTTO E BUCKLIN A Papetti, Chiara Zane, Lorenzo Bortolotto, E Bucklin, A Patarnello, Tomaso 2005 STAMPA http://hdl.handle.net/11577/2442933 https://doi.org/10.3354/meps289225 eng eng INTER-RESEARCH, NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY info:eu-repo/semantics/altIdentifier/wos/WOS:000228927900020 volume:289 firstpage:225 lastpage:235 numberofpages:11 journal:MARINE ECOLOGY PROGRESS SERIES http://hdl.handle.net/11577/2442933 doi:10.3354/meps289225 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-18044377016 info:eu-repo/semantics/article 2005 ftunivpadovairis https://doi.org/10.3354/meps289225 2024-01-24T17:36:10Z Meganyctiphanes norvegica (M. Sars 1856), the northern krill, is the largest and most abundant euphausiid species in the northern hemisphere, where it represents a key component of many pelagic communities. Although planktonic, krill could be considered a nektonic organism, as it is capable of active movements. This behaviour may be adaptive, because it allows these organisms to maintain their geographic position, leading to stable population structure, despite being continuously exposed to the heterogeneous oceanic conditions. By means of single-strand conformation polymorphism and DNA sequencing, we analyzed allelic variation of the Subunit 1 of NADH dehydrogenase mtDNA locus in 23 populations of the northern krill Meganyctiphanes norvegica, from 15 locations spanning the distribution range of the species. Analysis of the data indicated that the genetic structure, as revealed by analysis of population samples collected at the same site in consecutive years, was stable during that sampling period. Our results revealed the existence of 4 genetically and geographically distinct gene pools of M. norvegica, 2 occurring in the NE Atlantic ('northern' NE Atlantic and 'southern' NE Atlantic), 1 in the NW Atlantic, and 1 in the Mediterranean (Ligurian) Sea. Article in Journal/Newspaper Meganyctiphanes norvegica Northern krill Padua Research Archive (IRIS - Università degli Studi di Padova) Marine Ecology Progress Series 289 225 235 |
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Open Polar |
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Padua Research Archive (IRIS - Università degli Studi di Padova) |
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ftunivpadovairis |
language |
English |
description |
Meganyctiphanes norvegica (M. Sars 1856), the northern krill, is the largest and most abundant euphausiid species in the northern hemisphere, where it represents a key component of many pelagic communities. Although planktonic, krill could be considered a nektonic organism, as it is capable of active movements. This behaviour may be adaptive, because it allows these organisms to maintain their geographic position, leading to stable population structure, despite being continuously exposed to the heterogeneous oceanic conditions. By means of single-strand conformation polymorphism and DNA sequencing, we analyzed allelic variation of the Subunit 1 of NADH dehydrogenase mtDNA locus in 23 populations of the northern krill Meganyctiphanes norvegica, from 15 locations spanning the distribution range of the species. Analysis of the data indicated that the genetic structure, as revealed by analysis of population samples collected at the same site in consecutive years, was stable during that sampling period. Our results revealed the existence of 4 genetically and geographically distinct gene pools of M. norvegica, 2 occurring in the NE Atlantic ('northern' NE Atlantic and 'southern' NE Atlantic), 1 in the NW Atlantic, and 1 in the Mediterranean (Ligurian) Sea. |
author2 |
Papetti, Chiara Zane, Lorenzo Bortolotto, E Bucklin, A Patarnello, Tomaso |
format |
Article in Journal/Newspaper |
author |
PAPETTI, CHIARA ZANE, LORENZO PATARNELLO, TOMASO BORTOLOTTO E BUCKLIN A |
spellingShingle |
PAPETTI, CHIARA ZANE, LORENZO PATARNELLO, TOMASO BORTOLOTTO E BUCKLIN A Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica |
author_facet |
PAPETTI, CHIARA ZANE, LORENZO PATARNELLO, TOMASO BORTOLOTTO E BUCKLIN A |
author_sort |
PAPETTI, CHIARA |
title |
Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica |
title_short |
Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica |
title_full |
Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica |
title_fullStr |
Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica |
title_full_unstemmed |
Genetic differentiation and local temporal stability of population structure in the euphausiid Meganyctiphanes norvegica |
title_sort |
genetic differentiation and local temporal stability of population structure in the euphausiid meganyctiphanes norvegica |
publisher |
INTER-RESEARCH, NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY |
publishDate |
2005 |
url |
http://hdl.handle.net/11577/2442933 https://doi.org/10.3354/meps289225 |
genre |
Meganyctiphanes norvegica Northern krill |
genre_facet |
Meganyctiphanes norvegica Northern krill |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000228927900020 volume:289 firstpage:225 lastpage:235 numberofpages:11 journal:MARINE ECOLOGY PROGRESS SERIES http://hdl.handle.net/11577/2442933 doi:10.3354/meps289225 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-18044377016 |
op_doi |
https://doi.org/10.3354/meps289225 |
container_title |
Marine Ecology Progress Series |
container_volume |
289 |
container_start_page |
225 |
op_container_end_page |
235 |
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1790602892621643776 |