Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios
Pronounced atmospheric and oceanic warming along the West Antarctic Peninsula (WAP) has resulted in abundance shifts in populations of Antarctic krill and Salpa thompsoni determined by changes in the timing of sea-ice advance, the duration of sea-ice cover and food availability. Krill and salps repr...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Nature Research
2020
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/52844/ https://epic.awi.de/id/eprint/52844/1/Plum_et_al_2020.pdf https://hdl.handle.net/10013/epic.25e049be-9c36-4e67-8e1e-f2fde181a417 |
id |
ftawi:oai:epic.awi.de:52844 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:52844 2024-09-15T17:42:04+00:00 Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios Plum, Christoph Hillebrand, Helmut Moorthi, Stefanie 2020-04-03 application/pdf https://epic.awi.de/id/eprint/52844/ https://epic.awi.de/id/eprint/52844/1/Plum_et_al_2020.pdf https://hdl.handle.net/10013/epic.25e049be-9c36-4e67-8e1e-f2fde181a417 unknown Nature Research https://epic.awi.de/id/eprint/52844/1/Plum_et_al_2020.pdf Plum, C. , Hillebrand, H. and Moorthi, S. (2020) Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios , Scientific Reports, 10 (5911) . doi:10.1038/s41598-020-62829-8 <https://doi.org/10.1038/s41598-020-62829-8> , hdl:10013/epic.25e049be-9c36-4e67-8e1e-f2fde181a417 EPIC3Scientific Reports, Nature Research, 10(5911), ISSN: 2045-2322 Article isiRev 2020 ftawi https://doi.org/10.1038/s41598-020-62829-8 2024-06-24T04:24:41Z Pronounced atmospheric and oceanic warming along the West Antarctic Peninsula (WAP) has resulted in abundance shifts in populations of Antarctic krill and Salpa thompsoni determined by changes in the timing of sea-ice advance, the duration of sea-ice cover and food availability. Krill and salps represent the most important macrozooplankton grazers at the WAP, but differ profoundly in their feeding biology, population dynamics and stoichiometry of excretion products with potential consequences for the relative availability of dissolved nitrogen and phosphorus. Alternation of the dissolved nutrient pool due to shifts in krill and salp densities have been hypothesized but never explicitly tested by using observational data. We therefore used the Palmer LTER dataset in order to investigate whether the dominance of either grazer is related with the observed dissolved nitrogen:phosphorus (N:P) ratios at the WAP. Across the whole sampling grid, the dominance of salps over krill was significantly correlated to higher concentrations of both N and P as well as a higher N:P ratios. Using actual long-term data, our study shows for the first time that changes in key grazer dominance may have consequences for the dynamics of dissolved nitrogen and phosphorus at the WAP. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Peninsula Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Scientific Reports 10 1 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Pronounced atmospheric and oceanic warming along the West Antarctic Peninsula (WAP) has resulted in abundance shifts in populations of Antarctic krill and Salpa thompsoni determined by changes in the timing of sea-ice advance, the duration of sea-ice cover and food availability. Krill and salps represent the most important macrozooplankton grazers at the WAP, but differ profoundly in their feeding biology, population dynamics and stoichiometry of excretion products with potential consequences for the relative availability of dissolved nitrogen and phosphorus. Alternation of the dissolved nutrient pool due to shifts in krill and salp densities have been hypothesized but never explicitly tested by using observational data. We therefore used the Palmer LTER dataset in order to investigate whether the dominance of either grazer is related with the observed dissolved nitrogen:phosphorus (N:P) ratios at the WAP. Across the whole sampling grid, the dominance of salps over krill was significantly correlated to higher concentrations of both N and P as well as a higher N:P ratios. Using actual long-term data, our study shows for the first time that changes in key grazer dominance may have consequences for the dynamics of dissolved nitrogen and phosphorus at the WAP. |
format |
Article in Journal/Newspaper |
author |
Plum, Christoph Hillebrand, Helmut Moorthi, Stefanie |
spellingShingle |
Plum, Christoph Hillebrand, Helmut Moorthi, Stefanie Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios |
author_facet |
Plum, Christoph Hillebrand, Helmut Moorthi, Stefanie |
author_sort |
Plum, Christoph |
title |
Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios |
title_short |
Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios |
title_full |
Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios |
title_fullStr |
Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios |
title_full_unstemmed |
Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios |
title_sort |
krill vs salps: dominance shift from krill to salps is associated with higher dissolved n:p ratios |
publisher |
Nature Research |
publishDate |
2020 |
url |
https://epic.awi.de/id/eprint/52844/ https://epic.awi.de/id/eprint/52844/1/Plum_et_al_2020.pdf https://hdl.handle.net/10013/epic.25e049be-9c36-4e67-8e1e-f2fde181a417 |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Peninsula Sea ice |
op_source |
EPIC3Scientific Reports, Nature Research, 10(5911), ISSN: 2045-2322 |
op_relation |
https://epic.awi.de/id/eprint/52844/1/Plum_et_al_2020.pdf Plum, C. , Hillebrand, H. and Moorthi, S. (2020) Krill vs salps: dominance shift from krill to salps is associated with higher dissolved N:P ratios , Scientific Reports, 10 (5911) . doi:10.1038/s41598-020-62829-8 <https://doi.org/10.1038/s41598-020-62829-8> , hdl:10013/epic.25e049be-9c36-4e67-8e1e-f2fde181a417 |
op_doi |
https://doi.org/10.1038/s41598-020-62829-8 |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
_version_ |
1810488442111393792 |