Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates
The effect of dissolution from particulates into the supernatant solution in sediment trap sample cups has been measured for fatty acids. A mooring array with time series sediment traps was deployed in the northeast Atlantic Ocean (59°N, 21°W) for 14 months. Selected representative samples from the...
Published in: | Journal of Geophysical Research |
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AGU (American Geophysical Union)
1994
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ftoceanrep:oai:oceanrep.geomar.de:2772 2023-05-15T17:41:29+02:00 Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates Körtzinger, Arne Schulz-Bull, Detlef E. Petrick, Gert Duinker, Jan C. 1994 text https://oceanrep.geomar.de/id/eprint/2772/ https://oceanrep.geomar.de/id/eprint/2772/1/K-rtzinger_et_al-1994-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf https://doi.org/10.1029/93JC02784 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/2772/1/K-rtzinger_et_al-1994-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf Körtzinger, A. , Schulz-Bull, D. E., Petrick, G. and Duinker, J. C. (1994) Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates. Open Access Journal of Geophysical Research: Oceans, 99 (C2). pp. 3407-3415. DOI 10.1029/93JC02784 <https://doi.org/10.1029/93JC02784>. doi:10.1029/93JC02784 info:eu-repo/semantics/openAccess Article PeerReviewed 1994 ftoceanrep https://doi.org/10.1029/93JC02784 2023-04-07T14:46:23Z The effect of dissolution from particulates into the supernatant solution in sediment trap sample cups has been measured for fatty acids. A mooring array with time series sediment traps was deployed in the northeast Atlantic Ocean (59°N, 21°W) for 14 months. Selected representative samples from the trap at 2200 m (poisoned with NaN3) were analyzed for total and free fatty acids in both the solution and particulate phase by means of gas chromatography‐mass spectrometry with an ion trap detector. The flux contribution of the dissolved total fatty acids (∑ DTFA) was found to be between 15 and 75% of the total flux (∑ TTFA, sum of the fluxes of total fatty acids in both particles and supernatants). Dissolved free fatty acids (∑ DFFA) represented 25–88% of the total flux of free fatty acids (∑ TFFA). Absolute concentrations of total and free fatty acids in both compartments are discussed in terms of the processes controlling the distribution between the two phases, for example, readsorption. Sample handling, poisoning, bacterial activity, and swimmers may also affect fatty acid distribution. Flux data (sum of particulate and dissolved fluxes) are presented for individual fatty acids. Also, the degree of dissolution of individual fatty acids is shown for one sample (dissolved fraction ranging between 16 and 98% of total flux). Article in Journal/Newspaper Northeast Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Journal of Geophysical Research 99 C2 3407 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The effect of dissolution from particulates into the supernatant solution in sediment trap sample cups has been measured for fatty acids. A mooring array with time series sediment traps was deployed in the northeast Atlantic Ocean (59°N, 21°W) for 14 months. Selected representative samples from the trap at 2200 m (poisoned with NaN3) were analyzed for total and free fatty acids in both the solution and particulate phase by means of gas chromatography‐mass spectrometry with an ion trap detector. The flux contribution of the dissolved total fatty acids (∑ DTFA) was found to be between 15 and 75% of the total flux (∑ TTFA, sum of the fluxes of total fatty acids in both particles and supernatants). Dissolved free fatty acids (∑ DFFA) represented 25–88% of the total flux of free fatty acids (∑ TFFA). Absolute concentrations of total and free fatty acids in both compartments are discussed in terms of the processes controlling the distribution between the two phases, for example, readsorption. Sample handling, poisoning, bacterial activity, and swimmers may also affect fatty acid distribution. Flux data (sum of particulate and dissolved fluxes) are presented for individual fatty acids. Also, the degree of dissolution of individual fatty acids is shown for one sample (dissolved fraction ranging between 16 and 98% of total flux). |
format |
Article in Journal/Newspaper |
author |
Körtzinger, Arne Schulz-Bull, Detlef E. Petrick, Gert Duinker, Jan C. |
spellingShingle |
Körtzinger, Arne Schulz-Bull, Detlef E. Petrick, Gert Duinker, Jan C. Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates |
author_facet |
Körtzinger, Arne Schulz-Bull, Detlef E. Petrick, Gert Duinker, Jan C. |
author_sort |
Körtzinger, Arne |
title |
Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates |
title_short |
Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates |
title_full |
Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates |
title_fullStr |
Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates |
title_full_unstemmed |
Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates |
title_sort |
evidence for dissolution of fatty acids in sediment traps: impact on flux estimates |
publisher |
AGU (American Geophysical Union) |
publishDate |
1994 |
url |
https://oceanrep.geomar.de/id/eprint/2772/ https://oceanrep.geomar.de/id/eprint/2772/1/K-rtzinger_et_al-1994-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf https://doi.org/10.1029/93JC02784 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/2772/1/K-rtzinger_et_al-1994-Journal_of_Geophysical_Research__Oceans_%281978-2012%29.pdf Körtzinger, A. , Schulz-Bull, D. E., Petrick, G. and Duinker, J. C. (1994) Evidence for dissolution of fatty acids in sediment traps: impact on flux estimates. Open Access Journal of Geophysical Research: Oceans, 99 (C2). pp. 3407-3415. DOI 10.1029/93JC02784 <https://doi.org/10.1029/93JC02784>. doi:10.1029/93JC02784 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/93JC02784 |
container_title |
Journal of Geophysical Research |
container_volume |
99 |
container_issue |
C2 |
container_start_page |
3407 |
_version_ |
1766143070451007488 |