The association between biogenic and inorganic minerals and the amino acid composition of settling particles
To test the hypothesis that calcium carbonate (rather than opal) carries most organic carbon to the deep sea, total hydrolysable amino acid (THAA) analysis was applied to deep‐sea (3000 m) sediment trap material from the northeast Atlantic (PAP Site), a variable but intrinsically carbonate‐dominated...
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crwiley:10.4319/lo.2010.55.5.2207 2023-12-03T10:27:40+01:00 The association between biogenic and inorganic minerals and the amino acid composition of settling particles Salter, I. Kemp, A. E. S. Lampitt, R. S. Gledhill, M. 2010 http://dx.doi.org/10.4319/lo.2010.55.5.2207 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2010.55.5.2207 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2010.55.5.2207 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 55, issue 5, page 2207-2218 ISSN 0024-3590 1939-5590 Aquatic Science Oceanography journal-article 2010 crwiley https://doi.org/10.4319/lo.2010.55.5.2207 2023-11-09T13:26:25Z To test the hypothesis that calcium carbonate (rather than opal) carries most organic carbon to the deep sea, total hydrolysable amino acid (THAA) analysis was applied to deep‐sea (3000 m) sediment trap material from the northeast Atlantic (PAP Site), a variable but intrinsically carbonate‐dominated system. THAAs were analyzed in conjunction with total organic carbon, biogenic silica, calcium carbonate, and inferred lithogenic fluxes. The THAA‐based degradation state of organic carbon could not be systematically explained by changes in the flux of different mineral phases, which could account for only 16% of the observed variability. In addition amino acid parameters indicative of source organisms indicate that diatom cell walls are an important residual component of organic carbon reaching the deep ocean, a finding supported by comparison with data from previous studies of diverse oceanic environments. Finally, during 2001, very high organic carbon fluxes were associated with elevated lithogenic fluxes and low organic matter degradation relative to surrounding years. In accordance with other recent experimental and observational studies, the data indicate that under specific export scenarios, lithogenic fluxes can act as highly significant mediators of organic carbon transfer to the deep ocean. Article in Journal/Newspaper Northeast Atlantic Wiley Online Library (via Crossref) Limnology and Oceanography 55 5 2207 2218 |
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Open Polar |
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Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Oceanography |
spellingShingle |
Aquatic Science Oceanography Salter, I. Kemp, A. E. S. Lampitt, R. S. Gledhill, M. The association between biogenic and inorganic minerals and the amino acid composition of settling particles |
topic_facet |
Aquatic Science Oceanography |
description |
To test the hypothesis that calcium carbonate (rather than opal) carries most organic carbon to the deep sea, total hydrolysable amino acid (THAA) analysis was applied to deep‐sea (3000 m) sediment trap material from the northeast Atlantic (PAP Site), a variable but intrinsically carbonate‐dominated system. THAAs were analyzed in conjunction with total organic carbon, biogenic silica, calcium carbonate, and inferred lithogenic fluxes. The THAA‐based degradation state of organic carbon could not be systematically explained by changes in the flux of different mineral phases, which could account for only 16% of the observed variability. In addition amino acid parameters indicative of source organisms indicate that diatom cell walls are an important residual component of organic carbon reaching the deep ocean, a finding supported by comparison with data from previous studies of diverse oceanic environments. Finally, during 2001, very high organic carbon fluxes were associated with elevated lithogenic fluxes and low organic matter degradation relative to surrounding years. In accordance with other recent experimental and observational studies, the data indicate that under specific export scenarios, lithogenic fluxes can act as highly significant mediators of organic carbon transfer to the deep ocean. |
format |
Article in Journal/Newspaper |
author |
Salter, I. Kemp, A. E. S. Lampitt, R. S. Gledhill, M. |
author_facet |
Salter, I. Kemp, A. E. S. Lampitt, R. S. Gledhill, M. |
author_sort |
Salter, I. |
title |
The association between biogenic and inorganic minerals and the amino acid composition of settling particles |
title_short |
The association between biogenic and inorganic minerals and the amino acid composition of settling particles |
title_full |
The association between biogenic and inorganic minerals and the amino acid composition of settling particles |
title_fullStr |
The association between biogenic and inorganic minerals and the amino acid composition of settling particles |
title_full_unstemmed |
The association between biogenic and inorganic minerals and the amino acid composition of settling particles |
title_sort |
association between biogenic and inorganic minerals and the amino acid composition of settling particles |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.4319/lo.2010.55.5.2207 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2010.55.5.2207 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2010.55.5.2207 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Limnology and Oceanography volume 55, issue 5, page 2207-2218 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2010.55.5.2207 |
container_title |
Limnology and Oceanography |
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55 |
container_issue |
5 |
container_start_page |
2207 |
op_container_end_page |
2218 |
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1784277512881176576 |