Ocean currents determine functional connectivity in an Antarctic deep-sea shrimp
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 t...
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Online Access: | https://doi.org/10.1111/maec.12343 |
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fteawag:oai:dora:eawag_15720 2023-05-15T13:55:42+02:00 Ocean currents determine functional connectivity in an Antarctic deep-sea shrimp Dambach, Johannes Raupach, Michael J. Leese, Florian Schwarzer, Julia Engler, Jan O. 2016 https://doi.org/10.1111/maec.12343 eng eng Wiley Marine Ecology--Marine Ecol.--journals:3924--0173-9565--1439-0485 eawag:15720 journal id: journals:3924 issn: 0173-9565 e-issn: 1439-0485 ut: 000390401400013 scopus: 2-s2.0-84994311215 doi:10.1111/maec.12343 current flow modeling marine connectivity microsatellites Nematocarcinus lanceopes seascape genetics Text Journal Article 2016 fteawag https://doi.org/10.1111/maec.12343 2023-04-09T04:46:32Z 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 DORA Eawag Antarctic Southern Ocean The Antarctic Marine Ecology 37 6 1336 1344 |
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English |
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current flow modeling marine connectivity microsatellites Nematocarcinus lanceopes seascape genetics |
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current flow modeling marine connectivity microsatellites Nematocarcinus lanceopes seascape genetics Dambach, Johannes Raupach, Michael J. Leese, Florian Schwarzer, Julia Engler, Jan O. Ocean currents determine functional connectivity in an Antarctic deep-sea shrimp |
topic_facet |
current flow modeling marine connectivity microsatellites Nematocarcinus lanceopes seascape genetics |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Dambach, Johannes Raupach, Michael J. Leese, Florian Schwarzer, Julia Engler, Jan O. |
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 |
https://doi.org/10.1111/maec.12343 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
Marine Ecology--Marine Ecol.--journals:3924--0173-9565--1439-0485 eawag:15720 journal id: journals:3924 issn: 0173-9565 e-issn: 1439-0485 ut: 000390401400013 scopus: 2-s2.0-84994311215 doi:10.1111/maec.12343 |
op_doi |
https://doi.org/10.1111/maec.12343 |
container_title |
Marine Ecology |
container_volume |
37 |
container_issue |
6 |
container_start_page |
1336 |
op_container_end_page |
1344 |
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1766262530823421952 |