Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses
Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupy...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2017
|
Subjects: | |
Online Access: | https://eprints.soton.ac.uk/415595/ https://eprints.soton.ac.uk/415595/1/fmars_04_00356.pdf |
id |
ftsouthampton:oai:eprints.soton.ac.uk:415595 |
---|---|
record_format |
openpolar |
spelling |
ftsouthampton:oai:eprints.soton.ac.uk:415595 2023-07-30T03:56:48+02:00 Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses Brasier, Madeleine J. Harle, James Wiklund, Helena Jeffreys, Rachel M. Linse, Katrin Ruhl, Henry A. Glover, Adrian G. 2017-11-16 text https://eprints.soton.ac.uk/415595/ https://eprints.soton.ac.uk/415595/1/fmars_04_00356.pdf en English eng https://eprints.soton.ac.uk/415595/1/fmars_04_00356.pdf Brasier, Madeleine J., Harle, James, Wiklund, Helena, Jeffreys, Rachel M., Linse, Katrin, Ruhl, Henry A. and Glover, Adrian G. (2017) Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses. Frontiers in Marine Science, 4, [000356]. (doi:10.3389/fmars.2017.00356 <http://dx.doi.org/10.3389/fmars.2017.00356>). cc_by_4 Article PeerReviewed 2017 ftsouthampton https://doi.org/10.3389/fmars.2017.00356 2023-07-09T22:18:54Z Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupying different regions of Antarctica. By analysing the distributions of nine morphospecies, (six of which contained potential cryptic species), we find evidence for widespread distributions within the Western Antarctic region. Around 60% of the cryptic species exhibited sympatric distributions, and at least one cryptic clade was found to be widespread. Additional DNA barcodes from GenBank and morphological records extended the observed range of three species studied here, and indicate potential circum-Antarctic traits. Particle tracking analyses was used to model theoretical dispersal ranges of pelagic larvae. Data from these models suggest that the observed species distributions inferred from genetic similarity could have been established and maintained through the regional oceanographic currents. West Antarctic continental shelf populations may be connected via the Antarctic Circumpolar Current or its coastal Counter Current, dependent on particle release location. Improved understanding of the distribution of Antarctic fauna is essential for predicting the impacts of environmental change and determining management strategies for the region. Article in Journal/Newspaper Antarc* Antarctic Antarctica University of Southampton: e-Prints Soton Antarctic The Antarctic Frontiers in Marine Science 4 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupying different regions of Antarctica. By analysing the distributions of nine morphospecies, (six of which contained potential cryptic species), we find evidence for widespread distributions within the Western Antarctic region. Around 60% of the cryptic species exhibited sympatric distributions, and at least one cryptic clade was found to be widespread. Additional DNA barcodes from GenBank and morphological records extended the observed range of three species studied here, and indicate potential circum-Antarctic traits. Particle tracking analyses was used to model theoretical dispersal ranges of pelagic larvae. Data from these models suggest that the observed species distributions inferred from genetic similarity could have been established and maintained through the regional oceanographic currents. West Antarctic continental shelf populations may be connected via the Antarctic Circumpolar Current or its coastal Counter Current, dependent on particle release location. Improved understanding of the distribution of Antarctic fauna is essential for predicting the impacts of environmental change and determining management strategies for the region. |
format |
Article in Journal/Newspaper |
author |
Brasier, Madeleine J. Harle, James Wiklund, Helena Jeffreys, Rachel M. Linse, Katrin Ruhl, Henry A. Glover, Adrian G. |
spellingShingle |
Brasier, Madeleine J. Harle, James Wiklund, Helena Jeffreys, Rachel M. Linse, Katrin Ruhl, Henry A. Glover, Adrian G. Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses |
author_facet |
Brasier, Madeleine J. Harle, James Wiklund, Helena Jeffreys, Rachel M. Linse, Katrin Ruhl, Henry A. Glover, Adrian G. |
author_sort |
Brasier, Madeleine J. |
title |
Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses |
title_short |
Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses |
title_full |
Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses |
title_fullStr |
Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses |
title_full_unstemmed |
Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses |
title_sort |
distributional patterns of polychaetes across the western antarctic based on dna barcoding and particle tracking analyses |
publishDate |
2017 |
url |
https://eprints.soton.ac.uk/415595/ https://eprints.soton.ac.uk/415595/1/fmars_04_00356.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
https://eprints.soton.ac.uk/415595/1/fmars_04_00356.pdf Brasier, Madeleine J., Harle, James, Wiklund, Helena, Jeffreys, Rachel M., Linse, Katrin, Ruhl, Henry A. and Glover, Adrian G. (2017) Distributional patterns of polychaetes across the Western Antarctic based on DNA barcoding and particle tracking analyses. Frontiers in Marine Science, 4, [000356]. (doi:10.3389/fmars.2017.00356 <http://dx.doi.org/10.3389/fmars.2017.00356>). |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.3389/fmars.2017.00356 |
container_title |
Frontiers in Marine Science |
container_volume |
4 |
_version_ |
1772814692905910272 |