Algal biomarkers in surface waters around the Crozet plateau
The region around the Crozet plateau (Southern ocean) exhibits enhanced annual primary productivity, occurring during a distinct spring bloom, due to natural iron fertilisation of the macro nutrient-replete polar frontal zone. We describe differences in algal biomarker abundances and distributions,...
Published in: | Organic Geochemistry |
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2008
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Online Access: | https://eprints.soton.ac.uk/63932/ |
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ftsouthampton:oai:eprints.soton.ac.uk:63932 2023-07-30T04:07:02+02:00 Algal biomarkers in surface waters around the Crozet plateau Hernandez, Maria T. Mills, Rachel A. Pancost, Richard D. 2008-08 https://eprints.soton.ac.uk/63932/ unknown Hernandez, Maria T., Mills, Rachel A. and Pancost, Richard D. (2008) Algal biomarkers in surface waters around the Crozet plateau. Organic Geochemistry, 39 (8), 1051-1057. (doi:10.1016/j.orggeochem.2008.04.015 <http://dx.doi.org/10.1016/j.orggeochem.2008.04.015>). Article PeerReviewed 2008 ftsouthampton https://doi.org/10.1016/j.orggeochem.2008.04.015 2023-07-09T21:03:45Z The region around the Crozet plateau (Southern ocean) exhibits enhanced annual primary productivity, occurring during a distinct spring bloom, due to natural iron fertilisation of the macro nutrient-replete polar frontal zone. We describe differences in algal biomarker abundances and distributions, with particular emphasis on alkenones and sterols, around the Crozet plateau during an algal bloom (December 2005 to January 2006). In the centre of the bloom, diatom-derived sterols dominate, whereas alkenones are proportionally more abundant at lower productivity times or sites. This is consistent with biomarker analyses for other settings and suggests that high productivity and high nutrient, low chlorophyll (HNLC) regimes can be distinguished on the basis of algal community structure and the associated lipid biomarker assemblages. Article in Journal/Newspaper Southern Ocean University of Southampton: e-Prints Soton Southern Ocean Organic Geochemistry 39 8 1051 1057 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
The region around the Crozet plateau (Southern ocean) exhibits enhanced annual primary productivity, occurring during a distinct spring bloom, due to natural iron fertilisation of the macro nutrient-replete polar frontal zone. We describe differences in algal biomarker abundances and distributions, with particular emphasis on alkenones and sterols, around the Crozet plateau during an algal bloom (December 2005 to January 2006). In the centre of the bloom, diatom-derived sterols dominate, whereas alkenones are proportionally more abundant at lower productivity times or sites. This is consistent with biomarker analyses for other settings and suggests that high productivity and high nutrient, low chlorophyll (HNLC) regimes can be distinguished on the basis of algal community structure and the associated lipid biomarker assemblages. |
format |
Article in Journal/Newspaper |
author |
Hernandez, Maria T. Mills, Rachel A. Pancost, Richard D. |
spellingShingle |
Hernandez, Maria T. Mills, Rachel A. Pancost, Richard D. Algal biomarkers in surface waters around the Crozet plateau |
author_facet |
Hernandez, Maria T. Mills, Rachel A. Pancost, Richard D. |
author_sort |
Hernandez, Maria T. |
title |
Algal biomarkers in surface waters around the Crozet plateau |
title_short |
Algal biomarkers in surface waters around the Crozet plateau |
title_full |
Algal biomarkers in surface waters around the Crozet plateau |
title_fullStr |
Algal biomarkers in surface waters around the Crozet plateau |
title_full_unstemmed |
Algal biomarkers in surface waters around the Crozet plateau |
title_sort |
algal biomarkers in surface waters around the crozet plateau |
publishDate |
2008 |
url |
https://eprints.soton.ac.uk/63932/ |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Hernandez, Maria T., Mills, Rachel A. and Pancost, Richard D. (2008) Algal biomarkers in surface waters around the Crozet plateau. Organic Geochemistry, 39 (8), 1051-1057. (doi:10.1016/j.orggeochem.2008.04.015 <http://dx.doi.org/10.1016/j.orggeochem.2008.04.015>). |
op_doi |
https://doi.org/10.1016/j.orggeochem.2008.04.015 |
container_title |
Organic Geochemistry |
container_volume |
39 |
container_issue |
8 |
container_start_page |
1051 |
op_container_end_page |
1057 |
_version_ |
1772820098333016064 |