Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica)
A high input of lithogenic sediment from glaciers was assumed to be responsible for high Fe and Mn contents in the Antarctic soft shell clam Laternula elliptica at King George Island. Indeed, withdrawal experiments indicated a strong influence of environmental Fe concentrations on Fe contents in biv...
Published in: | Estuarine, Coastal and Shelf Science |
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Online Access: | https://epic.awi.de/id/eprint/34389/ http://www.sciencedirect.com/science/article/pii/S0272771413004757 https://hdl.handle.net/10013/epic.42651 |
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ftawi:oai:epic.awi.de:34389 2024-09-09T19:05:13+00:00 Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) Poigner, Harald Monien, Patrick Monien, Donata Kriews, Michael Brumsack, H.-J. Wilhelms-Dick, Dorothee Abele, Doris 2013-11-01 https://epic.awi.de/id/eprint/34389/ http://www.sciencedirect.com/science/article/pii/S0272771413004757 https://hdl.handle.net/10013/epic.42651 unknown Elsevier Poigner, H. , Monien, P. , Monien, D. , Kriews, M. , Brumsack, H. J. , Wilhelms-Dick, D. and Abele, D. orcid:0000-0002-5766-5017 (2013) Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) , Estuarine, Coastal and Shelf Science . doi:10.1016/j.ecss.2013.10.027 <https://doi.org/10.1016/j.ecss.2013.10.027> , hdl:10013/epic.42651 EPIC3Estuarine, Coastal and Shelf Science, Elsevier, ISSN: 0272-7714 Article isiRev 2013 ftawi https://doi.org/10.1016/j.ecss.2013.10.027 2024-06-24T04:08:32Z A high input of lithogenic sediment from glaciers was assumed to be responsible for high Fe and Mn contents in the Antarctic soft shell clam Laternula elliptica at King George Island. Indeed, withdrawal experiments indicated a strong influence of environmental Fe concentrations on Fe contents in bivalve hemolymph, but no significant differences in hemolymph and tissue concentrations were found among two sites of high and lower input of lithogenic debris. Comparing Fe and Mn concentrations of porewater, bottom water, and hemolymph from sampling sites, Mn appears to be assimilated as dissolved species, whereas Fe apparently precipitates as ferrihydrite within the oxic sediment or bottom water layer prior to assimilation by the bivalve. Hence, we attribute the high variability of Fe and Mn accumulation in tissues of L. elliptica around Antarctica to differences in the geochemical environment of the sediment and the resulting Fe and Mn flux across the benthic boundary. Article in Journal/Newspaper Antarc* Antarctic Antarctica King George Island Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic King George Island The Antarctic Estuarine, Coastal and Shelf Science 135 285 295 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
A high input of lithogenic sediment from glaciers was assumed to be responsible for high Fe and Mn contents in the Antarctic soft shell clam Laternula elliptica at King George Island. Indeed, withdrawal experiments indicated a strong influence of environmental Fe concentrations on Fe contents in bivalve hemolymph, but no significant differences in hemolymph and tissue concentrations were found among two sites of high and lower input of lithogenic debris. Comparing Fe and Mn concentrations of porewater, bottom water, and hemolymph from sampling sites, Mn appears to be assimilated as dissolved species, whereas Fe apparently precipitates as ferrihydrite within the oxic sediment or bottom water layer prior to assimilation by the bivalve. Hence, we attribute the high variability of Fe and Mn accumulation in tissues of L. elliptica around Antarctica to differences in the geochemical environment of the sediment and the resulting Fe and Mn flux across the benthic boundary. |
format |
Article in Journal/Newspaper |
author |
Poigner, Harald Monien, Patrick Monien, Donata Kriews, Michael Brumsack, H.-J. Wilhelms-Dick, Dorothee Abele, Doris |
spellingShingle |
Poigner, Harald Monien, Patrick Monien, Donata Kriews, Michael Brumsack, H.-J. Wilhelms-Dick, Dorothee Abele, Doris Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) |
author_facet |
Poigner, Harald Monien, Patrick Monien, Donata Kriews, Michael Brumsack, H.-J. Wilhelms-Dick, Dorothee Abele, Doris |
author_sort |
Poigner, Harald |
title |
Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) |
title_short |
Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) |
title_full |
Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) |
title_fullStr |
Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) |
title_full_unstemmed |
Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) |
title_sort |
influence of the porewater geochemistry on fe and mn assimilation in laternula elliptica at king george island (antarctica) |
publisher |
Elsevier |
publishDate |
2013 |
url |
https://epic.awi.de/id/eprint/34389/ http://www.sciencedirect.com/science/article/pii/S0272771413004757 https://hdl.handle.net/10013/epic.42651 |
geographic |
Antarctic King George Island The Antarctic |
geographic_facet |
Antarctic King George Island The Antarctic |
genre |
Antarc* Antarctic Antarctica King George Island |
genre_facet |
Antarc* Antarctic Antarctica King George Island |
op_source |
EPIC3Estuarine, Coastal and Shelf Science, Elsevier, ISSN: 0272-7714 |
op_relation |
Poigner, H. , Monien, P. , Monien, D. , Kriews, M. , Brumsack, H. J. , Wilhelms-Dick, D. and Abele, D. orcid:0000-0002-5766-5017 (2013) Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica) , Estuarine, Coastal and Shelf Science . doi:10.1016/j.ecss.2013.10.027 <https://doi.org/10.1016/j.ecss.2013.10.027> , hdl:10013/epic.42651 |
op_doi |
https://doi.org/10.1016/j.ecss.2013.10.027 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
135 |
container_start_page |
285 |
op_container_end_page |
295 |
_version_ |
1809819232667435008 |