Conquered from the Deep Sea? A New Deep-Sea Isopod Species from the Antarctic Shelf Shows Pattern of Recent Colonization
The Amundsen Sea, Antarctica, is amongst the most rapidly changing environments of the world. Its benthic inhabitants are barely known and the BIOPEARL 2 project was one of the first to biologically explore this region. Collected during this expedition, Macrostylis roaldi sp. nov. is described as th...
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ftpubmed:oai:pubmedcentral.nih.gov:3492298 2023-05-15T13:23:53+02:00 Conquered from the Deep Sea? A New Deep-Sea Isopod Species from the Antarctic Shelf Shows Pattern of Recent Colonization Riehl, Torben Kaiser, Stefanie 2012-11-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3492298 http://www.ncbi.nlm.nih.gov/pubmed/23145160 https://doi.org/10.1371/journal.pone.0049354 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3492298 http://www.ncbi.nlm.nih.gov/pubmed/23145160 http://dx.doi.org/10.1371/journal.pone.0049354 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2012 ftpubmed https://doi.org/10.1371/journal.pone.0049354 2013-09-04T15:37:31Z The Amundsen Sea, Antarctica, is amongst the most rapidly changing environments of the world. Its benthic inhabitants are barely known and the BIOPEARL 2 project was one of the first to biologically explore this region. Collected during this expedition, Macrostylis roaldi sp. nov. is described as the first isopod discovered on the Amundsen-Sea shelf. Amongst many characteristic features, the most obvious characters unique for M. roaldi are the rather short pleotelson and short operculum as well as the trapezoid shape of the pleotelson in adult males. We used DNA barcodes (COI) and additional mitochondrial markers (12S, 16S) to reciprocally illuminate morphological results and nucleotide variability. In contrast to many other deep-sea isopods, this species is common and shows a wide distribution. Its range spreads from Pine Island Bay at inner shelf right to the shelf break and across 1,000 m bathymetrically. Its gene pool is homogenized across space and depth. This is indicative for a genetic bottleneck or a recent colonization history. Our results suggest further that migratory or dispersal capabilities of some species of brooding macrobenthos have been underestimated. This might be relevant for the species’ potential to cope with effects of climate change. To determine where this species could have survived the last glacial period, alternative refuge possibilities are discussed. Text Amundsen Sea Antarc* Antarctic Antarctica Pine Island Pine Island Bay PubMed Central (PMC) Amundsen Sea Antarctic Island Bay ENVELOPE(-109.085,-109.085,59.534,59.534) Pine Island Bay ENVELOPE(-102.000,-102.000,-74.750,-74.750) The Antarctic PLoS ONE 7 11 e49354 |
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Research Article Riehl, Torben Kaiser, Stefanie Conquered from the Deep Sea? A New Deep-Sea Isopod Species from the Antarctic Shelf Shows Pattern of Recent Colonization |
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Research Article |
description |
The Amundsen Sea, Antarctica, is amongst the most rapidly changing environments of the world. Its benthic inhabitants are barely known and the BIOPEARL 2 project was one of the first to biologically explore this region. Collected during this expedition, Macrostylis roaldi sp. nov. is described as the first isopod discovered on the Amundsen-Sea shelf. Amongst many characteristic features, the most obvious characters unique for M. roaldi are the rather short pleotelson and short operculum as well as the trapezoid shape of the pleotelson in adult males. We used DNA barcodes (COI) and additional mitochondrial markers (12S, 16S) to reciprocally illuminate morphological results and nucleotide variability. In contrast to many other deep-sea isopods, this species is common and shows a wide distribution. Its range spreads from Pine Island Bay at inner shelf right to the shelf break and across 1,000 m bathymetrically. Its gene pool is homogenized across space and depth. This is indicative for a genetic bottleneck or a recent colonization history. Our results suggest further that migratory or dispersal capabilities of some species of brooding macrobenthos have been underestimated. This might be relevant for the species’ potential to cope with effects of climate change. To determine where this species could have survived the last glacial period, alternative refuge possibilities are discussed. |
format |
Text |
author |
Riehl, Torben Kaiser, Stefanie |
author_facet |
Riehl, Torben Kaiser, Stefanie |
author_sort |
Riehl, Torben |
title |
Conquered from the Deep Sea? A New Deep-Sea Isopod Species from the Antarctic Shelf Shows Pattern of Recent Colonization |
title_short |
Conquered from the Deep Sea? A New Deep-Sea Isopod Species from the Antarctic Shelf Shows Pattern of Recent Colonization |
title_full |
Conquered from the Deep Sea? A New Deep-Sea Isopod Species from the Antarctic Shelf Shows Pattern of Recent Colonization |
title_fullStr |
Conquered from the Deep Sea? A New Deep-Sea Isopod Species from the Antarctic Shelf Shows Pattern of Recent Colonization |
title_full_unstemmed |
Conquered from the Deep Sea? A New Deep-Sea Isopod Species from the Antarctic Shelf Shows Pattern of Recent Colonization |
title_sort |
conquered from the deep sea? a new deep-sea isopod species from the antarctic shelf shows pattern of recent colonization |
publisher |
Public Library of Science |
publishDate |
2012 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3492298 http://www.ncbi.nlm.nih.gov/pubmed/23145160 https://doi.org/10.1371/journal.pone.0049354 |
long_lat |
ENVELOPE(-109.085,-109.085,59.534,59.534) ENVELOPE(-102.000,-102.000,-74.750,-74.750) |
geographic |
Amundsen Sea Antarctic Island Bay Pine Island Bay The Antarctic |
geographic_facet |
Amundsen Sea Antarctic Island Bay Pine Island Bay The Antarctic |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Pine Island Pine Island Bay |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Pine Island Pine Island Bay |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3492298 http://www.ncbi.nlm.nih.gov/pubmed/23145160 http://dx.doi.org/10.1371/journal.pone.0049354 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0049354 |
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PLoS ONE |
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7 |
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11 |
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e49354 |
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