High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: the myctophid Electrona antarctica
Many marine pelagic fish species are characterized by subtle but complex genetic structures and dynamics, depending on the balance between current-mediated larval dispersal and adult active homing behavior. The circumantarctic continuous hydrodynamics of the Southern Ocean is a prime example of a sy...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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ftvliz:oai:oma.vliz.be:238620 2023-05-15T13:54:14+02:00 High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: the myctophid Electrona antarctica Van De Putte, A.P. Van Houdt, J.K.J. Maes, G.E. Hellemans, B. Collins, M.A. Volckaert, F.A.M. 2012 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238620 en eng info:eu-repo/semantics/altIdentifier/wos/000300810700017 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.dsr2.2011.05.011 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238620 info:eu-repo/semantics/restrictedAccess %3Ci%3EDeep-Sea+Res.,+Part+II,+Top.+Stud.+Oceanogr.+59-60%3C%2Fi%3E%3A+199-207.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.dsr2.2011.05.011%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.dsr2.2011.05.011%3C%2Fa%3E Myctophidae [Lanternfishes] Pisces [Fish] info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftvliz https://doi.org/10.1016/j.dsr2.2011.05.011 2022-05-01T10:16:21Z Many marine pelagic fish species are characterized by subtle but complex genetic structures and dynamics, depending on the balance between current-mediated larval dispersal and adult active homing behavior. The circumantarctic continuous hydrodynamics of the Southern Ocean is a prime example of a system with a potentially great homogenizing effect among distant populations. We tested this hypothesis by analyzing the contemporary genetic relatedness among populations of a common and endemic mesopelagic fish of the Southern Ocean, Electrona antarctica . Seven newly developed species-specific microsatellite markers were used to investigate patterns of neutral genetic variation in 11 geographically widespread samples ( n =400) collected between 2006 and 2007. We detected a very high level of genetic diversity, but a striking lack of genetic differentiation on a circumantarctic scale, indicating large effective population sizes complemented with high levels of admixture. These findings underscore the large scale homogenizing effect of the Southern Coastal Current, leading to a high level of connectivity of our model species in the Southern Ocean, which is congruent with its huge biomass and central role in marine food webs. As an important Antarctic marine living resource this species may as such be managed on a circumantarctic level, although the demographic stability of this stock should be estimated urgently. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Southern Ocean Deep Sea Research Part II: Topical Studies in Oceanography 59-60 199 207 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Myctophidae [Lanternfishes] Pisces [Fish] |
spellingShingle |
Myctophidae [Lanternfishes] Pisces [Fish] Van De Putte, A.P. Van Houdt, J.K.J. Maes, G.E. Hellemans, B. Collins, M.A. Volckaert, F.A.M. High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: the myctophid Electrona antarctica |
topic_facet |
Myctophidae [Lanternfishes] Pisces [Fish] |
description |
Many marine pelagic fish species are characterized by subtle but complex genetic structures and dynamics, depending on the balance between current-mediated larval dispersal and adult active homing behavior. The circumantarctic continuous hydrodynamics of the Southern Ocean is a prime example of a system with a potentially great homogenizing effect among distant populations. We tested this hypothesis by analyzing the contemporary genetic relatedness among populations of a common and endemic mesopelagic fish of the Southern Ocean, Electrona antarctica . Seven newly developed species-specific microsatellite markers were used to investigate patterns of neutral genetic variation in 11 geographically widespread samples ( n =400) collected between 2006 and 2007. We detected a very high level of genetic diversity, but a striking lack of genetic differentiation on a circumantarctic scale, indicating large effective population sizes complemented with high levels of admixture. These findings underscore the large scale homogenizing effect of the Southern Coastal Current, leading to a high level of connectivity of our model species in the Southern Ocean, which is congruent with its huge biomass and central role in marine food webs. As an important Antarctic marine living resource this species may as such be managed on a circumantarctic level, although the demographic stability of this stock should be estimated urgently. |
format |
Article in Journal/Newspaper |
author |
Van De Putte, A.P. Van Houdt, J.K.J. Maes, G.E. Hellemans, B. Collins, M.A. Volckaert, F.A.M. |
author_facet |
Van De Putte, A.P. Van Houdt, J.K.J. Maes, G.E. Hellemans, B. Collins, M.A. Volckaert, F.A.M. |
author_sort |
Van De Putte, A.P. |
title |
High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: the myctophid Electrona antarctica |
title_short |
High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: the myctophid Electrona antarctica |
title_full |
High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: the myctophid Electrona antarctica |
title_fullStr |
High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: the myctophid Electrona antarctica |
title_full_unstemmed |
High genetic diversity and connectivity in a common mesopelagic fish of the Southern Ocean: the myctophid Electrona antarctica |
title_sort |
high genetic diversity and connectivity in a common mesopelagic fish of the southern ocean: the myctophid electrona antarctica |
publishDate |
2012 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238620 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_source |
%3Ci%3EDeep-Sea+Res.,+Part+II,+Top.+Stud.+Oceanogr.+59-60%3C%2Fi%3E%3A+199-207.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.dsr2.2011.05.011%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.dsr2.2011.05.011%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000300810700017 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1016/j.dsr2.2011.05.011 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238620 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.dsr2.2011.05.011 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
59-60 |
container_start_page |
199 |
op_container_end_page |
207 |
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1766259923015958528 |