Fluxes and budgets of biogenic elements at the sediment-water interface of Marian Cove, King George Island
Abstract Fluxes of dissolved oxygen and nutrients and vertical fluxes of particulate organic elements were investigated in the subtidal benthic environment of Marian Cove, King George Island, Antarctica, using in situ benthic chambers and near-bottom sediment traps. Fluxes of dissolved oxygen, ammon...
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crcambridgeupr:10.1017/s0954102011000137 2024-03-03T08:38:48+00:00 Fluxes and budgets of biogenic elements at the sediment-water interface of Marian Cove, King George Island Shim, JeonGhee Kang, Young Chul Kang, Dong-Jin Han, Myung Woo 2011 http://dx.doi.org/10.1017/s0954102011000137 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000137 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 23, issue 4, page 358-368 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0954102011000137 2024-02-08T08:41:50Z Abstract Fluxes of dissolved oxygen and nutrients and vertical fluxes of particulate organic elements were investigated in the subtidal benthic environment of Marian Cove, King George Island, Antarctica, using in situ benthic chambers and near-bottom sediment traps. Fluxes of dissolved oxygen, ammonium, phosphate, and silicate were comparable to those measured in temperate regions. Sediment oxygen consumption was a good indicator of organic respiration and elemental efflux at the benthic boundary layer of Marian Cove, with good positive correlations with ammonia ( r 2 = 0.67), phosphate ( r 2 = 0.57), and the C:N:P ratio (106:11.5:1.15) in the chamber water. A positive relationship ( r 2 = 0.58) between settling particulate organic carbon flux and chl a concentration suggests that water column biomass and production are direct sources of settling particles. According to element budgets in summer assessed using the fluxes, J in and the sum of J out and J burial were 15.9 ± 8.1 and 22.6 ± 8.2 mmol m -2 d -1 for carbon, 2.02 ± 0.54 and 2.46 ± 0.82 mmol m -2 d -1 for nitrogen, 0.07 ± 0.03 and 0.23 ± 0.08 mmol m -2 d -1 for phosphorus, and 12.4 ± 2.7 and 13.5 ± 5.0 mmol m -2 d -1 for silicon, respectively. There was a broad balance between sediment organic input and remineralized output for carbon and nitrogen at the benthic boundary layer of Marian Cove. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica King George Island Cambridge University Press King George Island Marian ENVELOPE(-58.750,-58.750,-62.217,-62.217) Marian Cove ENVELOPE(-58.800,-58.800,-62.217,-62.217) Antarctic Science 23 4 358 368 |
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 Shim, JeonGhee Kang, Young Chul Kang, Dong-Jin Han, Myung Woo Fluxes and budgets of biogenic elements at the sediment-water interface of Marian Cove, King George Island |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Fluxes of dissolved oxygen and nutrients and vertical fluxes of particulate organic elements were investigated in the subtidal benthic environment of Marian Cove, King George Island, Antarctica, using in situ benthic chambers and near-bottom sediment traps. Fluxes of dissolved oxygen, ammonium, phosphate, and silicate were comparable to those measured in temperate regions. Sediment oxygen consumption was a good indicator of organic respiration and elemental efflux at the benthic boundary layer of Marian Cove, with good positive correlations with ammonia ( r 2 = 0.67), phosphate ( r 2 = 0.57), and the C:N:P ratio (106:11.5:1.15) in the chamber water. A positive relationship ( r 2 = 0.58) between settling particulate organic carbon flux and chl a concentration suggests that water column biomass and production are direct sources of settling particles. According to element budgets in summer assessed using the fluxes, J in and the sum of J out and J burial were 15.9 ± 8.1 and 22.6 ± 8.2 mmol m -2 d -1 for carbon, 2.02 ± 0.54 and 2.46 ± 0.82 mmol m -2 d -1 for nitrogen, 0.07 ± 0.03 and 0.23 ± 0.08 mmol m -2 d -1 for phosphorus, and 12.4 ± 2.7 and 13.5 ± 5.0 mmol m -2 d -1 for silicon, respectively. There was a broad balance between sediment organic input and remineralized output for carbon and nitrogen at the benthic boundary layer of Marian Cove. |
format |
Article in Journal/Newspaper |
author |
Shim, JeonGhee Kang, Young Chul Kang, Dong-Jin Han, Myung Woo |
author_facet |
Shim, JeonGhee Kang, Young Chul Kang, Dong-Jin Han, Myung Woo |
author_sort |
Shim, JeonGhee |
title |
Fluxes and budgets of biogenic elements at the sediment-water interface of Marian Cove, King George Island |
title_short |
Fluxes and budgets of biogenic elements at the sediment-water interface of Marian Cove, King George Island |
title_full |
Fluxes and budgets of biogenic elements at the sediment-water interface of Marian Cove, King George Island |
title_fullStr |
Fluxes and budgets of biogenic elements at the sediment-water interface of Marian Cove, King George Island |
title_full_unstemmed |
Fluxes and budgets of biogenic elements at the sediment-water interface of Marian Cove, King George Island |
title_sort |
fluxes and budgets of biogenic elements at the sediment-water interface of marian cove, king george island |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0954102011000137 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000137 |
long_lat |
ENVELOPE(-58.750,-58.750,-62.217,-62.217) ENVELOPE(-58.800,-58.800,-62.217,-62.217) |
geographic |
King George Island Marian Marian Cove |
geographic_facet |
King George Island Marian Marian Cove |
genre |
Antarc* Antarctic Science Antarctica King George Island |
genre_facet |
Antarc* Antarctic Science Antarctica King George Island |
op_source |
Antarctic Science volume 23, issue 4, page 358-368 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102011000137 |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
4 |
container_start_page |
358 |
op_container_end_page |
368 |
_version_ |
1792507259725545472 |