Sediment geochemistry and water trace metal concentration in Potter Cove
Recent rapid climate warming at the western Antarctic Peninsula (WAP) results in elevated glacial melting, enhanced sedimentary run-off, increased turbidity and impact of ice-scouring in shallow coastal areas. Discharge of mineral suspension from volcanic bedrock ablation and chronic physical distur...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.848244 2023-05-15T13:44:47+02:00 Sediment geochemistry and water trace metal concentration in Potter Cove Husmann, Gunnar Abele, Doris Monien, Donata Monien, Patrick Kriews, Michael Philipp, Eva E R MEDIAN LATITUDE: -62.231443 * MEDIAN LONGITUDE: -58.662317 * SOUTH-BOUND LATITUDE: -62.235800 * WEST-BOUND LONGITUDE: -58.666660 * NORTH-BOUND LATITUDE: -62.225200 * EAST-BOUND LONGITUDE: -58.656900 * DATE/TIME START: 2006-12-27T00:00:00 * DATE/TIME END: 2007-03-09T00:00:00 2012-07-17 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.848244 https://doi.org/10.1594/PANGAEA.848244 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.848244 https://doi.org/10.1594/PANGAEA.848244 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Husmann, Gunnar; Abele, Doris; Monien, Donata; Monien, Patrick; Kriews, Michael; Philipp, Eva E R (2012): The influence of sedimentation on metal accumulation and cellular oxidative stress markers in the Antarctic bivalve Laternula elliptica. Estuarine, Coastal and Shelf Science, 111, 48-59, https://doi.org/10.1016/j.ecss.2012.06.003 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Dataset 2012 ftpangaea https://doi.org/10.1594/PANGAEA.848244 https://doi.org/10.1016/j.ecss.2012.06.003 2023-01-20T07:33:29Z Recent rapid climate warming at the western Antarctic Peninsula (WAP) results in elevated glacial melting, enhanced sedimentary run-off, increased turbidity and impact of ice-scouring in shallow coastal areas. Discharge of mineral suspension from volcanic bedrock ablation and chronic physical disturbance is expected to influence sessile filter feeders such as the Antarctic soft shell clam Laternula elliptica ( King and Broderip, 1832). We investigated effects of sedimentary run-off on the accumulation of trace metals, and together with physical disturbance, the cumulative effect on oxidative stress parameters in younger and older L. elliptica from two stations in Potter Cove (King George Island, Antarctica) which are distinctly impacted by turbidity and ice-scouring. Fe, Mn, Sr, V and Zn concentrations were slightly higher in sediments of the station receiving more sediment run-off, but not enriched in bivalves of this station. The only element that increased in bivalves experimentally exposed to sediment suspension for 28 days was Mn. Concentration of the waste accumulation biomarker lipofuscin in nervous tissue was higher in L. elliptica from the "exposed" compared to the "less exposed" site, whereas protein carbonyl levels in bivalve mantle tissue were higher at the less sediment impacted site. Tissue metal content and lipofuscin in nervous tissue were generally higher in older compared to younger individuals from both field stations. We conclude that elevated sediment ablation does not per se result in higher metal accumulation in L. elliptica. Instead of direct absorbance from sediment particles, metal accumulation in gills seems to indicate uptake of compounds dissolved in the water column, whereas metals in digestive gland appear to originate from enriched planktonic or detritic food. Accumulation of cellular waste products and potentially reactive metals over lifetime presumably alters L. elliptica physiological performance with age and may contribute to higher stress susceptibility in older animals. Dataset Antarc* Antarctic Antarctic Peninsula Antarctica Arctic King George Island Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Antarctic The Antarctic Antarctic Peninsula King George Island Potter Cove ENVELOPE(-58.666660,-58.656900,-62.225200,-62.235800) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Husmann, Gunnar Abele, Doris Monien, Donata Monien, Patrick Kriews, Michael Philipp, Eva E R Sediment geochemistry and water trace metal concentration in Potter Cove |
topic_facet |
Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
Recent rapid climate warming at the western Antarctic Peninsula (WAP) results in elevated glacial melting, enhanced sedimentary run-off, increased turbidity and impact of ice-scouring in shallow coastal areas. Discharge of mineral suspension from volcanic bedrock ablation and chronic physical disturbance is expected to influence sessile filter feeders such as the Antarctic soft shell clam Laternula elliptica ( King and Broderip, 1832). We investigated effects of sedimentary run-off on the accumulation of trace metals, and together with physical disturbance, the cumulative effect on oxidative stress parameters in younger and older L. elliptica from two stations in Potter Cove (King George Island, Antarctica) which are distinctly impacted by turbidity and ice-scouring. Fe, Mn, Sr, V and Zn concentrations were slightly higher in sediments of the station receiving more sediment run-off, but not enriched in bivalves of this station. The only element that increased in bivalves experimentally exposed to sediment suspension for 28 days was Mn. Concentration of the waste accumulation biomarker lipofuscin in nervous tissue was higher in L. elliptica from the "exposed" compared to the "less exposed" site, whereas protein carbonyl levels in bivalve mantle tissue were higher at the less sediment impacted site. Tissue metal content and lipofuscin in nervous tissue were generally higher in older compared to younger individuals from both field stations. We conclude that elevated sediment ablation does not per se result in higher metal accumulation in L. elliptica. Instead of direct absorbance from sediment particles, metal accumulation in gills seems to indicate uptake of compounds dissolved in the water column, whereas metals in digestive gland appear to originate from enriched planktonic or detritic food. Accumulation of cellular waste products and potentially reactive metals over lifetime presumably alters L. elliptica physiological performance with age and may contribute to higher stress susceptibility in older animals. |
format |
Dataset |
author |
Husmann, Gunnar Abele, Doris Monien, Donata Monien, Patrick Kriews, Michael Philipp, Eva E R |
author_facet |
Husmann, Gunnar Abele, Doris Monien, Donata Monien, Patrick Kriews, Michael Philipp, Eva E R |
author_sort |
Husmann, Gunnar |
title |
Sediment geochemistry and water trace metal concentration in Potter Cove |
title_short |
Sediment geochemistry and water trace metal concentration in Potter Cove |
title_full |
Sediment geochemistry and water trace metal concentration in Potter Cove |
title_fullStr |
Sediment geochemistry and water trace metal concentration in Potter Cove |
title_full_unstemmed |
Sediment geochemistry and water trace metal concentration in Potter Cove |
title_sort |
sediment geochemistry and water trace metal concentration in potter cove |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.848244 https://doi.org/10.1594/PANGAEA.848244 |
op_coverage |
MEDIAN LATITUDE: -62.231443 * MEDIAN LONGITUDE: -58.662317 * SOUTH-BOUND LATITUDE: -62.235800 * WEST-BOUND LONGITUDE: -58.666660 * NORTH-BOUND LATITUDE: -62.225200 * EAST-BOUND LONGITUDE: -58.656900 * DATE/TIME START: 2006-12-27T00:00:00 * DATE/TIME END: 2007-03-09T00:00:00 |
long_lat |
ENVELOPE(-58.666660,-58.656900,-62.225200,-62.235800) |
geographic |
Arctic Antarctic The Antarctic Antarctic Peninsula King George Island Potter Cove |
geographic_facet |
Arctic Antarctic The Antarctic Antarctic Peninsula King George Island Potter Cove |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Arctic King George Island Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Arctic King George Island Sea ice |
op_source |
Supplement to: Husmann, Gunnar; Abele, Doris; Monien, Donata; Monien, Patrick; Kriews, Michael; Philipp, Eva E R (2012): The influence of sedimentation on metal accumulation and cellular oxidative stress markers in the Antarctic bivalve Laternula elliptica. Estuarine, Coastal and Shelf Science, 111, 48-59, https://doi.org/10.1016/j.ecss.2012.06.003 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.848244 https://doi.org/10.1594/PANGAEA.848244 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.848244 https://doi.org/10.1016/j.ecss.2012.06.003 |
_version_ |
1766206305189494784 |