TY - JOUR
T1 - Controls on magnesium, manganese, strontium, and barium concentrations recorded in freshwater mussel shells from Ohio
AU - Geeza, Thomas J.
AU - Gillikin, David P.
AU - Goodwin, David H.
AU - Evans, Scott D.
AU - Watters, Thomas
AU - Warner, Nathaniel R.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/11/5
Y1 - 2019/11/5
N2 - Freshwater bivalve shells may record inter-annual fluctuations in water chemistry, which in turn may archive variations in solute load due to pollution or discharge events. Here, using weekly surface water chemistry collected at two locations and shells of Lampsilis cardium grown in the surface water we investigate if the Mg/Ca, Mn/Ca, Sr/Ca, and Ba/Ca ratios measured at high resolution in the shells on an intra-annual time scale consistently reflect the chemistry of the surface water. Two relationships appear highly correlated, Sr/Cacarb and Sr/Cawater, and Mn/Cacarb and temperature. Ba/Cacarb correlated strongly with Ba/Cawater in one shell but temperature in another shell yielding inconclusive results. Mn/Cacarb and Mg/Cacarb were not strongly correlated with elemental ratios in the water, but Mn/Cacarb did show variable, weak to moderate correlation with pH. We found consistent partition coefficient (DMe) values between individual shell samples grown in the same water with mean DMg = 0.0006, DMn = 17, DBa = 0.13, and DSr = 0.176. Sr/Cacarb and Sr/Cawater exhibited the strongest, most consistent correlation with partitioning coefficients that were consistent with published values, suggesting Sr/Cacarb can be used as a proxy for Sr/Cawater in freshwater mussels.
AB - Freshwater bivalve shells may record inter-annual fluctuations in water chemistry, which in turn may archive variations in solute load due to pollution or discharge events. Here, using weekly surface water chemistry collected at two locations and shells of Lampsilis cardium grown in the surface water we investigate if the Mg/Ca, Mn/Ca, Sr/Ca, and Ba/Ca ratios measured at high resolution in the shells on an intra-annual time scale consistently reflect the chemistry of the surface water. Two relationships appear highly correlated, Sr/Cacarb and Sr/Cawater, and Mn/Cacarb and temperature. Ba/Cacarb correlated strongly with Ba/Cawater in one shell but temperature in another shell yielding inconclusive results. Mn/Cacarb and Mg/Cacarb were not strongly correlated with elemental ratios in the water, but Mn/Cacarb did show variable, weak to moderate correlation with pH. We found consistent partition coefficient (DMe) values between individual shell samples grown in the same water with mean DMg = 0.0006, DMn = 17, DBa = 0.13, and DSr = 0.176. Sr/Cacarb and Sr/Cawater exhibited the strongest, most consistent correlation with partitioning coefficients that were consistent with published values, suggesting Sr/Cacarb can be used as a proxy for Sr/Cawater in freshwater mussels.
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U2 - 10.1016/j.chemgeo.2018.01.001
DO - 10.1016/j.chemgeo.2018.01.001
M3 - Article
AN - SCOPUS:85044727739
SN - 0009-2541
VL - 526
SP - 142
EP - 152
JO - Chemical Geology
JF - Chemical Geology
ER -