Elemental composition and stoichiometry of krill and salps
Abstract Krill and salps play a pivotal role in marine food webs and ocean biogeochemistry, yet little is known about their stoichiometry, which is crucial for our understanding of the consequences of key grazer population shifts for ecosystem functioning. To assess differences in stoichiometric req...
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2023
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Online Access: | http://dx.doi.org/10.1093/plankt/fbad005 https://academic.oup.com/plankt/article-pdf/45/2/372/49720449/fbad005.pdf |
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croxfordunivpr:10.1093/plankt/fbad005 2024-06-09T07:39:24+00:00 Elemental composition and stoichiometry of krill and salps Plum, Christoph Möller, Fenja-Marie Smykala, Mike Moorthi, Stefanie Ministry for Science and Culture of Lower Saxony Deutsche Forschungsgemeinschaft 2023 http://dx.doi.org/10.1093/plankt/fbad005 https://academic.oup.com/plankt/article-pdf/45/2/372/49720449/fbad005.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Journal of Plankton Research volume 45, issue 2, page 372-388 ISSN 0142-7873 1464-3774 journal-article 2023 croxfordunivpr https://doi.org/10.1093/plankt/fbad005 2024-05-10T13:17:40Z Abstract Krill and salps play a pivotal role in marine food webs and ocean biogeochemistry, yet little is known about their stoichiometry, which is crucial for our understanding of the consequences of key grazer population shifts for ecosystem functioning. To assess differences in stoichiometric requirements, we compared the elemental composition of carbon (C), nitrogen (N) and phosphorus (P) in body tissue and gut content of Euphausia superba and Salpa thompsoni collected along the Northern Antarctic Peninsula and conducted a systematic literature review on the stoichiometry of 33 euphausiid and 19 salp species. Our data revealed significantly lower body C:P and N:P ratios but higher gut content N:P in S. thompsoni compared with E. superba, suggesting higher P uptake. In contrast, literature data showed higher C:N, C:P and N:P ratios in salps, potentially indicating lower nutrient demand compared with krill. However, literature data exhibited high intra- and interspecific variability potentially driven by organism size, seasonal or latitudinal variations, emphasizing that nutritional requirements are not only related to the target species, but also to its habitat. Our study provides valuable stoichiometric information for future experimental and modeling studies, fostering our ability to predict the future role of krill and salps for ocean biogeochemistry. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Euphausia superba Oxford University Press Antarctic Antarctic Peninsula Journal of Plankton Research 45 2 372 388 |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Krill and salps play a pivotal role in marine food webs and ocean biogeochemistry, yet little is known about their stoichiometry, which is crucial for our understanding of the consequences of key grazer population shifts for ecosystem functioning. To assess differences in stoichiometric requirements, we compared the elemental composition of carbon (C), nitrogen (N) and phosphorus (P) in body tissue and gut content of Euphausia superba and Salpa thompsoni collected along the Northern Antarctic Peninsula and conducted a systematic literature review on the stoichiometry of 33 euphausiid and 19 salp species. Our data revealed significantly lower body C:P and N:P ratios but higher gut content N:P in S. thompsoni compared with E. superba, suggesting higher P uptake. In contrast, literature data showed higher C:N, C:P and N:P ratios in salps, potentially indicating lower nutrient demand compared with krill. However, literature data exhibited high intra- and interspecific variability potentially driven by organism size, seasonal or latitudinal variations, emphasizing that nutritional requirements are not only related to the target species, but also to its habitat. Our study provides valuable stoichiometric information for future experimental and modeling studies, fostering our ability to predict the future role of krill and salps for ocean biogeochemistry. |
author2 |
Ministry for Science and Culture of Lower Saxony Deutsche Forschungsgemeinschaft |
format |
Article in Journal/Newspaper |
author |
Plum, Christoph Möller, Fenja-Marie Smykala, Mike Moorthi, Stefanie |
spellingShingle |
Plum, Christoph Möller, Fenja-Marie Smykala, Mike Moorthi, Stefanie Elemental composition and stoichiometry of krill and salps |
author_facet |
Plum, Christoph Möller, Fenja-Marie Smykala, Mike Moorthi, Stefanie |
author_sort |
Plum, Christoph |
title |
Elemental composition and stoichiometry of krill and salps |
title_short |
Elemental composition and stoichiometry of krill and salps |
title_full |
Elemental composition and stoichiometry of krill and salps |
title_fullStr |
Elemental composition and stoichiometry of krill and salps |
title_full_unstemmed |
Elemental composition and stoichiometry of krill and salps |
title_sort |
elemental composition and stoichiometry of krill and salps |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1093/plankt/fbad005 https://academic.oup.com/plankt/article-pdf/45/2/372/49720449/fbad005.pdf |
geographic |
Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Euphausia superba |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Euphausia superba |
op_source |
Journal of Plankton Research volume 45, issue 2, page 372-388 ISSN 0142-7873 1464-3774 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/plankt/fbad005 |
container_title |
Journal of Plankton Research |
container_volume |
45 |
container_issue |
2 |
container_start_page |
372 |
op_container_end_page |
388 |
_version_ |
1801379260629254144 |