Ocean currents determine functional connectivity in an Antarctic deep‐sea shrimp
Abstract The coherency among larval stages of marine taxa, ocean currents and population connectivity is still subject to discussion. A common view is that organisms with pelagic larval stages have higher dispersal abilities and therefore show a relatively homogeneous population genetic structure. C...
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crwiley:10.1111/maec.12343 2024-09-15T17:41:55+00:00 Ocean currents determine functional connectivity in an Antarctic deep‐sea shrimp Dambach, Johannes Raupach, Michael J. Leese, Florian Schwarzer, Julia Engler, Jan O. Deutsche Forschungsgemeinschaft 2016 http://dx.doi.org/10.1111/maec.12343 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmaec.12343 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maec.12343 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Ecology volume 37, issue 6, page 1336-1344 ISSN 0173-9565 1439-0485 journal-article 2016 crwiley https://doi.org/10.1111/maec.12343 2024-08-01T04:21:44Z Abstract The coherency among larval stages of marine taxa, ocean currents and population connectivity is still subject to discussion. A common view is that organisms with pelagic larval stages have higher dispersal abilities and therefore show a relatively homogeneous population genetic structure. Contrary to this, local genetic differentiation is assumed for many benthic direct developers. Specific larval or adult migratory behavior and hydrographic effects may significantly influence distribution patterns, rather than passive drifting abilities alone. The Southern Ocean is an ideal environment to test for the effects of ocean currents on population connectivity as it is characterized by several well‐defined and strong isolating current systems. In this study we studied the genetic structure of the decapod deep‐sea shrimp Nematocarcinus lanceopes , which has planktotrophic larval stages. We analysed 194 individuals from different sample localities around the Antarctic continent using nine microsatellite markers. Consistent with a previous study based on mitochondrial DNA markers, primarily weak genetic patterns among N. lanceopes populations around the continent were found. Using ocean resistance modeling approaches we were able to show that subtle genetic differences among populations are more likely explained by ocean currents rather than by geographic distance for the Atlantic Sector of the Southern Ocean. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Wiley Online Library Marine Ecology 37 6 1336 1344 |
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English |
description |
Abstract The coherency among larval stages of marine taxa, ocean currents and population connectivity is still subject to discussion. A common view is that organisms with pelagic larval stages have higher dispersal abilities and therefore show a relatively homogeneous population genetic structure. Contrary to this, local genetic differentiation is assumed for many benthic direct developers. Specific larval or adult migratory behavior and hydrographic effects may significantly influence distribution patterns, rather than passive drifting abilities alone. The Southern Ocean is an ideal environment to test for the effects of ocean currents on population connectivity as it is characterized by several well‐defined and strong isolating current systems. In this study we studied the genetic structure of the decapod deep‐sea shrimp Nematocarcinus lanceopes , which has planktotrophic larval stages. We analysed 194 individuals from different sample localities around the Antarctic continent using nine microsatellite markers. Consistent with a previous study based on mitochondrial DNA markers, primarily weak genetic patterns among N. lanceopes populations around the continent were found. Using ocean resistance modeling approaches we were able to show that subtle genetic differences among populations are more likely explained by ocean currents rather than by geographic distance for the Atlantic Sector of the Southern Ocean. |
author2 |
Deutsche Forschungsgemeinschaft |
format |
Article in Journal/Newspaper |
author |
Dambach, Johannes Raupach, Michael J. Leese, Florian Schwarzer, Julia Engler, Jan O. |
spellingShingle |
Dambach, Johannes Raupach, Michael J. Leese, Florian Schwarzer, Julia Engler, Jan O. Ocean currents determine functional connectivity in an Antarctic deep‐sea shrimp |
author_facet |
Dambach, Johannes Raupach, Michael J. Leese, Florian Schwarzer, Julia Engler, Jan O. |
author_sort |
Dambach, Johannes |
title |
Ocean currents determine functional connectivity in an Antarctic deep‐sea shrimp |
title_short |
Ocean currents determine functional connectivity in an Antarctic deep‐sea shrimp |
title_full |
Ocean currents determine functional connectivity in an Antarctic deep‐sea shrimp |
title_fullStr |
Ocean currents determine functional connectivity in an Antarctic deep‐sea shrimp |
title_full_unstemmed |
Ocean currents determine functional connectivity in an Antarctic deep‐sea shrimp |
title_sort |
ocean currents determine functional connectivity in an antarctic deep‐sea shrimp |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/maec.12343 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmaec.12343 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maec.12343 |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Marine Ecology volume 37, issue 6, page 1336-1344 ISSN 0173-9565 1439-0485 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/maec.12343 |
container_title |
Marine Ecology |
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37 |
container_issue |
6 |
container_start_page |
1336 |
op_container_end_page |
1344 |
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1810488198103564288 |