Wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of Admiralty Bay, King George Island, Antarctica
The vertical distribution of physicochemical parameters and Chl a at a fixed station in Admiralty Bay (King George Island, South Shetland Islands) was recorded over 73 days during the summer of 1988/89. Temporal variations in Chl a and nutrient stocks in the euphotic zone were associated with change...
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Language: | English |
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Cambridge University Press (CUP)
1994
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Online Access: | http://dx.doi.org/10.1017/s0954102094000672 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102094000672 |
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crcambridgeupr:10.1017/s0954102094000672 2024-03-03T08:38:59+00:00 Wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of Admiralty Bay, King George Island, Antarctica Brandini, Frederico Pereira Rebello, Jaqueline 1994 http://dx.doi.org/10.1017/s0954102094000672 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102094000672 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 6, issue 4, page 433-442 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1994 crcambridgeupr https://doi.org/10.1017/s0954102094000672 2024-02-08T08:31:33Z The vertical distribution of physicochemical parameters and Chl a at a fixed station in Admiralty Bay (King George Island, South Shetland Islands) was recorded over 73 days during the summer of 1988/89. Temporal variations in Chl a and nutrient stocks in the euphotic zone were associated with changes in the wind/hydrological regime. Northerly winds of late December and early January moved the surface layers towards the outerbay, during which time the chlorophyll stocks remained low in the euphotic zone. Turbulence induced by southerly winds in the second half of January resuspended sediments and benthic diatoms in the shallow (0–20 m) inner inlets of the bay, increasing turbidity and nutrient concentrations at the surface. During the first half of February wind relaxation caused the mass sedimentation of previously resuspended benthic diatoms increasing chlorophyll and phaeopigments in the subsurface layers in deeper sections of the bay. Although turbulence limits phytoplankton biomass accumulation in open waters of the Antarctic, it may have a positive effect (increasing chlorophyll biomass of benthic origin) in coastal pelagic environments during late summer. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica King George Island South Shetland Islands Cambridge University Press Antarctic The Antarctic King George Island South Shetland Islands Admiralty Bay Antarctic Science 6 4 433 442 |
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 Brandini, Frederico Pereira Rebello, Jaqueline Wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of Admiralty Bay, King George Island, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
The vertical distribution of physicochemical parameters and Chl a at a fixed station in Admiralty Bay (King George Island, South Shetland Islands) was recorded over 73 days during the summer of 1988/89. Temporal variations in Chl a and nutrient stocks in the euphotic zone were associated with changes in the wind/hydrological regime. Northerly winds of late December and early January moved the surface layers towards the outerbay, during which time the chlorophyll stocks remained low in the euphotic zone. Turbulence induced by southerly winds in the second half of January resuspended sediments and benthic diatoms in the shallow (0–20 m) inner inlets of the bay, increasing turbidity and nutrient concentrations at the surface. During the first half of February wind relaxation caused the mass sedimentation of previously resuspended benthic diatoms increasing chlorophyll and phaeopigments in the subsurface layers in deeper sections of the bay. Although turbulence limits phytoplankton biomass accumulation in open waters of the Antarctic, it may have a positive effect (increasing chlorophyll biomass of benthic origin) in coastal pelagic environments during late summer. |
format |
Article in Journal/Newspaper |
author |
Brandini, Frederico Pereira Rebello, Jaqueline |
author_facet |
Brandini, Frederico Pereira Rebello, Jaqueline |
author_sort |
Brandini, Frederico Pereira |
title |
Wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of Admiralty Bay, King George Island, Antarctica |
title_short |
Wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of Admiralty Bay, King George Island, Antarctica |
title_full |
Wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of Admiralty Bay, King George Island, Antarctica |
title_fullStr |
Wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of Admiralty Bay, King George Island, Antarctica |
title_full_unstemmed |
Wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of Admiralty Bay, King George Island, Antarctica |
title_sort |
wind field effect on hydrography and chlorophyll dynamics in the coastal pelagial of admiralty bay, king george island, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1994 |
url |
http://dx.doi.org/10.1017/s0954102094000672 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102094000672 |
geographic |
Antarctic The Antarctic King George Island South Shetland Islands Admiralty Bay |
geographic_facet |
Antarctic The Antarctic King George Island South Shetland Islands Admiralty Bay |
genre |
Antarc* Antarctic Antarctic Science Antarctica King George Island South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica King George Island South Shetland Islands |
op_source |
Antarctic Science volume 6, issue 4, page 433-442 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102094000672 |
container_title |
Antarctic Science |
container_volume |
6 |
container_issue |
4 |
container_start_page |
433 |
op_container_end_page |
442 |
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1792494389322317824 |