The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters
Over recent decades there have been numerous reports of the occurrence of trimethylamine-N-oxide (TMAO) in marine organisms, including algae, zooplankton and fish, where it is proposed to function as an osmolyte and may be involved in a number of other physiological roles. While it may seem reasonab...
Published in: | Marine Chemistry |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2004
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/514514/ https://doi.org/10.1016/j.marchem.2004.04.005 |
id |
ftnerc:oai:nora.nerc.ac.uk:514514 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:514514 2023-05-15T13:49:33+02:00 The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters Gibb, Stuart W. Hatton, Angela D. 2004-11-15 http://nora.nerc.ac.uk/id/eprint/514514/ https://doi.org/10.1016/j.marchem.2004.04.005 unknown Gibb, Stuart W.; Hatton, Angela D. 2004 The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters. Marine Chemistry, 91 (1-4). 65-75. https://doi.org/10.1016/j.marchem.2004.04.005 <https://doi.org/10.1016/j.marchem.2004.04.005> Publication - Article PeerReviewed 2004 ftnerc https://doi.org/10.1016/j.marchem.2004.04.005 2023-02-04T19:43:33Z Over recent decades there have been numerous reports of the occurrence of trimethylamine-N-oxide (TMAO) in marine organisms, including algae, zooplankton and fish, where it is proposed to function as an osmolyte and may be involved in a number of other physiological roles. While it may seem reasonable to assume that TMAO should also be present in seawater, to date its occurrence has not been reported. Here we report the first quantitative measurements of TMAO concentration and distribution in seawater. Results are also compared to the structurally and biochemically analogous sulphur compound, dimethylsulphoxide (DMSO) and its precursor dimethylsulphide (DMS). Studies were conducted in the coastal waters off the Antarctic Peninsula between January and February 1999. Concentrations of dissolved TMAO ranged from below the analytical detection limit (1.65 nmol dm−3) to 76.9 nmol dm−3 in the upper water column (to 100 m), with a mean of 15.2 nmol dm−3. These concentrations are comparable to those of DMSO, (mean 8.7 nmol dm−3) and DMS (mean 3.0 nmol dm−3), and are highly comparable to those of other nitrogen species, such as the methylamines (MAs). In vertical profiles, greatest concentrations of TMAO were observed in surface waters where they exceeded those of all other methylamine analytes. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Marine Chemistry 91 1-4 65 75 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
Over recent decades there have been numerous reports of the occurrence of trimethylamine-N-oxide (TMAO) in marine organisms, including algae, zooplankton and fish, where it is proposed to function as an osmolyte and may be involved in a number of other physiological roles. While it may seem reasonable to assume that TMAO should also be present in seawater, to date its occurrence has not been reported. Here we report the first quantitative measurements of TMAO concentration and distribution in seawater. Results are also compared to the structurally and biochemically analogous sulphur compound, dimethylsulphoxide (DMSO) and its precursor dimethylsulphide (DMS). Studies were conducted in the coastal waters off the Antarctic Peninsula between January and February 1999. Concentrations of dissolved TMAO ranged from below the analytical detection limit (1.65 nmol dm−3) to 76.9 nmol dm−3 in the upper water column (to 100 m), with a mean of 15.2 nmol dm−3. These concentrations are comparable to those of DMSO, (mean 8.7 nmol dm−3) and DMS (mean 3.0 nmol dm−3), and are highly comparable to those of other nitrogen species, such as the methylamines (MAs). In vertical profiles, greatest concentrations of TMAO were observed in surface waters where they exceeded those of all other methylamine analytes. |
format |
Article in Journal/Newspaper |
author |
Gibb, Stuart W. Hatton, Angela D. |
spellingShingle |
Gibb, Stuart W. Hatton, Angela D. The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters |
author_facet |
Gibb, Stuart W. Hatton, Angela D. |
author_sort |
Gibb, Stuart W. |
title |
The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters |
title_short |
The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters |
title_full |
The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters |
title_fullStr |
The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters |
title_full_unstemmed |
The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters |
title_sort |
occurrence and distribution of trimethylamine-n-oxide in antarctic coastal waters |
publishDate |
2004 |
url |
http://nora.nerc.ac.uk/id/eprint/514514/ https://doi.org/10.1016/j.marchem.2004.04.005 |
geographic |
Antarctic The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
Gibb, Stuart W.; Hatton, Angela D. 2004 The occurrence and distribution of trimethylamine-N-oxide in Antarctic coastal waters. Marine Chemistry, 91 (1-4). 65-75. https://doi.org/10.1016/j.marchem.2004.04.005 <https://doi.org/10.1016/j.marchem.2004.04.005> |
op_doi |
https://doi.org/10.1016/j.marchem.2004.04.005 |
container_title |
Marine Chemistry |
container_volume |
91 |
container_issue |
1-4 |
container_start_page |
65 |
op_container_end_page |
75 |
_version_ |
1766251551069831168 |