Poigner, Harald; Monien, Patrick; Monien, Donata; Kriews, Michael; Brumsack, Hans-Jürgen; Wilhelms-Dick, Dorothee; Abele, Doris (2013): Characterication of metals in hemolymph and tissues of the Antarctic bivalve Laternula elliptica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.776600, Supplement to: Poigner, H et al. (2013): Influence of the porewater geochemistry on Fe and Mn assimilation in Laternula elliptica at King George Island (Antarctica). Estuarine, Coastal and Shelf Science, 135, 285-295, https://doi.org/10.1016/j.ecss.2013.10.027
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DOI registered: 2012-04-26 • Published: 2013 (exact date unknown)
Abstract:
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.
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -62.231050 * Median Longitude: -58.653588 * South-bound Latitude: -62.238900 * West-bound Longitude: -58.689600 * North-bound Latitude: -62.225300 * East-bound Longitude: -58.640600
Date/Time Start: 2010-01-21T18:30:00 * Date/Time End: 2010-03-18T13:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
Laternula_HEC_2010 * Latitude: -62.230000 * Longitude: -58.660000 * Location: King George Island, Antarctic Peninsula * Campaign: Jubany_Dallmann * Basis: Carlini/Jubany Station * Method/Device: Biological sample (BIOS) * Comment: on 2012-03-05 renamed to Scientific Base Dr. Alejandro Carlini
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1538 data points
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Datasets with similar metadata
- Poigner, H; Wilhelms-Dick, D; Abele, D et al. (2015): Iron assimilation by the clam Laternula elliptica from Potter Cove, King Georg Island, Antarctica. https://doi.org/10.1594/PANGAEA.846456
- Brey, T; Voigt, M; Jenkins, K et al. (2011): Sclerochronological records of Laternula elliptica from Potter Cove, Maxwell Bay, King George Island. https://doi.org/10.1594/PANGAEA.760817
- Philipp, EER; Husmann, G; Abele, D (2011): Suspended paticulate matter and respiration experiments of Laternula elliptica in Potter Cove, King George Island, Western Antarctic Peninsula. https://doi.org/10.1594/PANGAEA.746016
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