Variations in the distribution of chlorophyll a and inorganic nutrients around South Georgia, South Atlantic
Data collected on four large-scale surveys around the subantarctic island of South Georgia provide information on the variability in the distribution of chlorophyll and inorganic nutrients during the austral summer and winter. During three summer surveys, surface water cholorophyll and nutrient conc...
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Language: | English |
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Cambridge University Press (CUP)
1993
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Online Access: | http://dx.doi.org/10.1017/s0954102093000495 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102093000495 |
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crcambridgeupr:10.1017/s0954102093000495 2024-03-03T08:39:25+00:00 Variations in the distribution of chlorophyll a and inorganic nutrients around South Georgia, South Atlantic Whitehouse, M. J. Symon, C. Priddle, J. 1993 http://dx.doi.org/10.1017/s0954102093000495 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102093000495 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 5, issue 4, page 367-376 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1993 crcambridgeupr https://doi.org/10.1017/s0954102093000495 2024-02-08T08:38:04Z Data collected on four large-scale surveys around the subantarctic island of South Georgia provide information on the variability in the distribution of chlorophyll and inorganic nutrients during the austral summer and winter. During three summer surveys, surface water cholorophyll and nutrient concentrations were highly patchy over scales ranging from a few to hundreds of kilometres. The highest measurement of chlorophyll a was 8 mg m −3 and a wide range of nutrient concentrations were found; 5–32 mmol m −3 NO 3 −N, 1.1–2.2 mmol m −3 PO 4 −P and 8–60 mmol m −3 Si(OH) 4 −Si. In winter, chlorophyll and nutrient levels were far more uniform, with chlorophyll concentrations lower and nutrient concentrations generally higher than in summer. The spatial variability in nutrient concentrations was due to a variety of factors acting over a range of scales, however biological processes appeared most important in creating the mesoscale patchiness around the island. Although phytoplankton abundance and nutrient concentrations were not directly correlated, the scales of variability were clearly similar. Article in Journal/Newspaper Antarctic Science Cambridge University Press Austral Antarctic Science 5 4 367 376 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Whitehouse, M. J. Symon, C. Priddle, J. Variations in the distribution of chlorophyll a and inorganic nutrients around South Georgia, South Atlantic |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Data collected on four large-scale surveys around the subantarctic island of South Georgia provide information on the variability in the distribution of chlorophyll and inorganic nutrients during the austral summer and winter. During three summer surveys, surface water cholorophyll and nutrient concentrations were highly patchy over scales ranging from a few to hundreds of kilometres. The highest measurement of chlorophyll a was 8 mg m −3 and a wide range of nutrient concentrations were found; 5–32 mmol m −3 NO 3 −N, 1.1–2.2 mmol m −3 PO 4 −P and 8–60 mmol m −3 Si(OH) 4 −Si. In winter, chlorophyll and nutrient levels were far more uniform, with chlorophyll concentrations lower and nutrient concentrations generally higher than in summer. The spatial variability in nutrient concentrations was due to a variety of factors acting over a range of scales, however biological processes appeared most important in creating the mesoscale patchiness around the island. Although phytoplankton abundance and nutrient concentrations were not directly correlated, the scales of variability were clearly similar. |
format |
Article in Journal/Newspaper |
author |
Whitehouse, M. J. Symon, C. Priddle, J. |
author_facet |
Whitehouse, M. J. Symon, C. Priddle, J. |
author_sort |
Whitehouse, M. J. |
title |
Variations in the distribution of chlorophyll a and inorganic nutrients around South Georgia, South Atlantic |
title_short |
Variations in the distribution of chlorophyll a and inorganic nutrients around South Georgia, South Atlantic |
title_full |
Variations in the distribution of chlorophyll a and inorganic nutrients around South Georgia, South Atlantic |
title_fullStr |
Variations in the distribution of chlorophyll a and inorganic nutrients around South Georgia, South Atlantic |
title_full_unstemmed |
Variations in the distribution of chlorophyll a and inorganic nutrients around South Georgia, South Atlantic |
title_sort |
variations in the distribution of chlorophyll a and inorganic nutrients around south georgia, south atlantic |
publisher |
Cambridge University Press (CUP) |
publishDate |
1993 |
url |
http://dx.doi.org/10.1017/s0954102093000495 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102093000495 |
geographic |
Austral |
geographic_facet |
Austral |
genre |
Antarctic Science |
genre_facet |
Antarctic Science |
op_source |
Antarctic Science volume 5, issue 4, page 367-376 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102093000495 |
container_title |
Antarctic Science |
container_volume |
5 |
container_issue |
4 |
container_start_page |
367 |
op_container_end_page |
376 |
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1792494944777142272 |