Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption
The carbon and nitrogen content of transparent exopolymer particles (TEP) was determined and related to the concentration of TEP as quantified by a colorimetrical method. TEP were produced in the laboratory from dissolved precursors by laminar or turbulent shear. Dissolved precursors were obtained b...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Inter Research
2001
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/12229/ https://oceanrep.geomar.de/id/eprint/12229/1/m219p001.pdf https://doi.org/10.3354/meps219001 |
id |
ftoceanrep:oai:oceanrep.geomar.de:12229 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:12229 2023-05-15T17:38:27+02:00 Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption Engel, Anja Passow, Uta 2001 text https://oceanrep.geomar.de/id/eprint/12229/ https://oceanrep.geomar.de/id/eprint/12229/1/m219p001.pdf https://doi.org/10.3354/meps219001 en eng Inter Research https://oceanrep.geomar.de/id/eprint/12229/1/m219p001.pdf Engel, A. and Passow, U. (2001) Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption. Open Access Marine Ecology Progress Series, 219 . pp. 1-10. DOI 10.3354/meps219001 <https://doi.org/10.3354/meps219001>. doi:10.3354/meps219001 info:eu-repo/semantics/openAccess Article PeerReviewed 2001 ftoceanrep https://doi.org/10.3354/meps219001 2023-04-07T15:00:31Z The carbon and nitrogen content of transparent exopolymer particles (TEP) was determined and related to the concentration of TEP as quantified by a colorimetrical method. TEP were produced in the laboratory from dissolved precursors by laminar or turbulent shear. Dissolved precursors were obtained by 0.2 µm filtration from diatom cultures, with or without nutrient reduction, and from natural diatom populations. The relationship between carbon and TEP was significant, linear and species-specific. Carbon concentration of TEP derived from this relationship concurred with previous findings. Shortage of silicic acid or nitrate in the culture media had no effect on the carbon content of TEP. Molar C:N ratios of TEP were above the Redfield ratio, with a mean value of 26. It is suggested that the nitrogen fraction of TEP can be explained by adsorption of dissolved organic nitrogen (DON) onto TEP. Based on the newly established relationship, concentrations of TEP-derived carbon (TEP-C) were calculated for the Baltic Sea, the coastal Pacific, the North East Atlantic and the Northern Adriatic Sea. Article in Journal/Newspaper North East Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Pacific Marine Ecology Progress Series 219 1 10 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The carbon and nitrogen content of transparent exopolymer particles (TEP) was determined and related to the concentration of TEP as quantified by a colorimetrical method. TEP were produced in the laboratory from dissolved precursors by laminar or turbulent shear. Dissolved precursors were obtained by 0.2 µm filtration from diatom cultures, with or without nutrient reduction, and from natural diatom populations. The relationship between carbon and TEP was significant, linear and species-specific. Carbon concentration of TEP derived from this relationship concurred with previous findings. Shortage of silicic acid or nitrate in the culture media had no effect on the carbon content of TEP. Molar C:N ratios of TEP were above the Redfield ratio, with a mean value of 26. It is suggested that the nitrogen fraction of TEP can be explained by adsorption of dissolved organic nitrogen (DON) onto TEP. Based on the newly established relationship, concentrations of TEP-derived carbon (TEP-C) were calculated for the Baltic Sea, the coastal Pacific, the North East Atlantic and the Northern Adriatic Sea. |
format |
Article in Journal/Newspaper |
author |
Engel, Anja Passow, Uta |
spellingShingle |
Engel, Anja Passow, Uta Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption |
author_facet |
Engel, Anja Passow, Uta |
author_sort |
Engel, Anja |
title |
Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption |
title_short |
Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption |
title_full |
Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption |
title_fullStr |
Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption |
title_full_unstemmed |
Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption |
title_sort |
carbon and nitrogen content of transparent exopolymer particles (tep) in relation to their alcian blue adsorption |
publisher |
Inter Research |
publishDate |
2001 |
url |
https://oceanrep.geomar.de/id/eprint/12229/ https://oceanrep.geomar.de/id/eprint/12229/1/m219p001.pdf https://doi.org/10.3354/meps219001 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/12229/1/m219p001.pdf Engel, A. and Passow, U. (2001) Carbon and nitrogen content of transparent exopolymer particles (TEP) in relation to their Alcian Blue adsorption. Open Access Marine Ecology Progress Series, 219 . pp. 1-10. DOI 10.3354/meps219001 <https://doi.org/10.3354/meps219001>. doi:10.3354/meps219001 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps219001 |
container_title |
Marine Ecology Progress Series |
container_volume |
219 |
container_start_page |
1 |
op_container_end_page |
10 |
_version_ |
1766138900708851712 |