Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean
Marine microbes along with microeukaryotes are key regulators of oceanic biogeochemical pathways. Here we present a high-resolution (every 0.5° of latitude) dataset describing microbial pro- and eukaryotic richness in the surface and just below the thermocline along a 7,000-km transect from 66°S at...
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ftunivtasmania:oai:eprints.utas.edu.au:39249 2023-05-15T13:42:39+02:00 Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean Raes, EJ Bodrossy, L van de Kamp, J Bissett, A Ostrowski, M Brown, MV Sow, SLS Sloyan, B Waite, AM 2018 https://eprints.utas.edu.au/39249/ http://www.pnas.org/content/115/35/E8266 unknown Natl Acad Sciences Raes, EJ, Bodrossy, L, van de Kamp, J, Bissett, A, Ostrowski, M, Brown, MV, Sow, SLS, Sloyan, B and Waite, AM 2018 , 'Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean' , Proceedings of the National Academy of Sciences of The United States of America, vol. 115, no. 35 , E8266–E8275 , doi:10.1073/pnas.1719335115 <http://dx.doi.org/10.1073/pnas.1719335115>. prokaryotes eukaryotes Rapoport's rule richness latitude Article PeerReviewed 2018 ftunivtasmania https://doi.org/10.1073/pnas.1719335115 2021-12-13T23:18:23Z Marine microbes along with microeukaryotes are key regulators of oceanic biogeochemical pathways. Here we present a high-resolution (every 0.5° of latitude) dataset describing microbial pro- and eukaryotic richness in the surface and just below the thermocline along a 7,000-km transect from 66°S at the Antarctic ice edge to the equator in the South Pacific Ocean. The transect, conducted in austral winter, covered key oceanographic features including crossing of the polar front (PF), the subtropical front (STF), and the equatorial upwelling region. Our data indicate that temperature does not determine patterns of marine microbial richness, complementing the global model data from Ladau et al. [Ladau J, et al. (2013) ISME J 7:1669–1677]. Rather, NH4+, nanophytoplankton, and primary productivity were the main drivers for archaeal and bacterial richness. Eukaryote richness was highest in the least-productive ocean region, the tropical oligotrophic province. We also observed a unique diversity pattern in the South Pacific Ocean: a regional increase in archaeal and bacterial diversity between 10°S and the equator. Rapoport’s rule describes the tendency for the latitudinal ranges of species to increase with latitude. Our data showed that the mean latitudinal ranges of archaea and bacteria decreased with latitude. We show that permanent oceanographic features, such as the STF and the equatorial upwelling, can have a significant influence on both alpha-diversity and beta-diversity of pro- and eukaryotes. Article in Journal/Newspaper Antarc* Antarctic University of Tasmania: UTas ePrints Antarctic Austral Pacific The Antarctic Proceedings of the National Academy of Sciences 115 35 E8266 E8275 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
unknown |
topic |
prokaryotes eukaryotes Rapoport's rule richness latitude |
spellingShingle |
prokaryotes eukaryotes Rapoport's rule richness latitude Raes, EJ Bodrossy, L van de Kamp, J Bissett, A Ostrowski, M Brown, MV Sow, SLS Sloyan, B Waite, AM Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean |
topic_facet |
prokaryotes eukaryotes Rapoport's rule richness latitude |
description |
Marine microbes along with microeukaryotes are key regulators of oceanic biogeochemical pathways. Here we present a high-resolution (every 0.5° of latitude) dataset describing microbial pro- and eukaryotic richness in the surface and just below the thermocline along a 7,000-km transect from 66°S at the Antarctic ice edge to the equator in the South Pacific Ocean. The transect, conducted in austral winter, covered key oceanographic features including crossing of the polar front (PF), the subtropical front (STF), and the equatorial upwelling region. Our data indicate that temperature does not determine patterns of marine microbial richness, complementing the global model data from Ladau et al. [Ladau J, et al. (2013) ISME J 7:1669–1677]. Rather, NH4+, nanophytoplankton, and primary productivity were the main drivers for archaeal and bacterial richness. Eukaryote richness was highest in the least-productive ocean region, the tropical oligotrophic province. We also observed a unique diversity pattern in the South Pacific Ocean: a regional increase in archaeal and bacterial diversity between 10°S and the equator. Rapoport’s rule describes the tendency for the latitudinal ranges of species to increase with latitude. Our data showed that the mean latitudinal ranges of archaea and bacteria decreased with latitude. We show that permanent oceanographic features, such as the STF and the equatorial upwelling, can have a significant influence on both alpha-diversity and beta-diversity of pro- and eukaryotes. |
format |
Article in Journal/Newspaper |
author |
Raes, EJ Bodrossy, L van de Kamp, J Bissett, A Ostrowski, M Brown, MV Sow, SLS Sloyan, B Waite, AM |
author_facet |
Raes, EJ Bodrossy, L van de Kamp, J Bissett, A Ostrowski, M Brown, MV Sow, SLS Sloyan, B Waite, AM |
author_sort |
Raes, EJ |
title |
Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean |
title_short |
Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean |
title_full |
Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean |
title_fullStr |
Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean |
title_full_unstemmed |
Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean |
title_sort |
oceanographic boundaries constrain microbial diversity gradients in the south pacific ocean |
publisher |
Natl Acad Sciences |
publishDate |
2018 |
url |
https://eprints.utas.edu.au/39249/ http://www.pnas.org/content/115/35/E8266 |
geographic |
Antarctic Austral Pacific The Antarctic |
geographic_facet |
Antarctic Austral Pacific The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Raes, EJ, Bodrossy, L, van de Kamp, J, Bissett, A, Ostrowski, M, Brown, MV, Sow, SLS, Sloyan, B and Waite, AM 2018 , 'Oceanographic boundaries constrain microbial diversity gradients in the South Pacific Ocean' , Proceedings of the National Academy of Sciences of The United States of America, vol. 115, no. 35 , E8266–E8275 , doi:10.1073/pnas.1719335115 <http://dx.doi.org/10.1073/pnas.1719335115>. |
op_doi |
https://doi.org/10.1073/pnas.1719335115 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
115 |
container_issue |
35 |
container_start_page |
E8266 |
op_container_end_page |
E8275 |
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1766170769963876352 |