Citation:

PANGAEA.937291

Name: δ18O, Mn/Ca, Mg/Ca, and Sr/Ca of the Pacific oyster Magallana gigas from a tidal basin in the Central Wadden Sea
Published: 2021-10-13
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bivalve; Elemental ratios; habitat influences; sclerochronology; stable oxygen isotope; tidal depositional system

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Abstract:

High-resolution proxy records are needed to evaluate models simulating past, present and future climatic conditions. Before such records can be reliably employed, calibration studies have to be conducted to assess the confidence intervals of the proxies. Here, we use shells of the fast growing Pacific oyster Magallana gigas from the Central Wadden Sea, North Sea, a temperate barrier island-backbarrier tidal flat-salt marsh system with large seasonal changes of water mass-properties, for the calibration of geochemical proxies. M. gigas represents a nonnative invasive species that rapidly develops oyster reefs. Calcite shells of two specimens from the intertidal and subtidal zones were sampled in high resolution yielding sub-monthly data sets. The time period represented in the shell, based on δ18O age modeling, was estimated at 8–10 years and the growth of the shells was restricted from (late) spring to (early) autumn of each year. Mg/Ca, Mn/Ca and Sr/Ca ratios of the intertidal and subtidal specimens show similar seasonal patterns. Mg/Ca and Sr/Ca ratios are investigated as high-resolution sea surface temperature (SST) proxies. Important ontogenetic effects (i.e., increasing time-averaging with increasing age) as well as inter-specimen variability are discussed as limiting factors for the proxy development. Intertidal Mg/Ca ratios show only a significant correlation to the high-resolution SST record of the Central Wadden Sea when the early ontogenetic stage is considered. Sr/Ca ratios were comparable in terms of absolute values and amplitudes to those of M. gigas in the Northern Wadden Sea, but amplitudes were decreasing with increasing age. These findings seriously hamper the application of Mg/Ca and Sr/Ca for reliable palaeotemperature reconstructions regardless of ontogenetic stage. The Mn/Ca ratios were investigated as proxy for Mn cycling in tidal basins, where it is interrelated with seasonal changes in primary production. In addition to the generally observed seasonal variability of the Mn/Ca oyster records, the subtidal Mn/Ca is significantly elevated compared to intertidal Mn/Ca. The subtidal Mn/Ca offset likely reflects differences in Mn cycling in tidal settings and could, therefore, serve in the palaeorecord as indicator to differentiate inter- and subtidal habitats in the same embedding sedimentary facies. This habitat effect has to be considered as an important factor besides environmental change when interpreting the high-resolution proxy record of fossil oysters.

Keyword(s):

Bivalve; Elemental ratios; habitat influences; sclerochronology; stable oxygen isotope; tidal depositional system

Related to:

Petersen, Jassin; Titschack, Jürgen; Groeneveld, Jeroen; Wehrmann, Achim; Hebbeln, Dierk; Freiwald, André (2021): Reef-building Pacific oysters record seasonal variations in water mass-properties of tidal basins from the Central Wadden Sea (North Sea). Palaeogeography, Palaeoclimatology, Palaeoecology, 577, 110534, https://doi.org/10.1016/j.palaeo.2021.110534

Coverage:

Latitude: 53.641500 * Longitude: 6.941333

Date/Time Start: 2013-04-03T00:00:00 * Date/Time End: 2013-04-03T00:00:00

Event(s):

Osterems_tidal_basin * Latitude: 53.641500 * Longitude: 6.941333 * Date/Time: 2013-04-03T00:00:00 * Location: Nordland tidal flat, Lower Saxony, Germany * Method/Device: Seafloor Sample (SFS) * Comment: Depth: 0.2 m above, and 0.6 m below low tide creek water surface for intertidal and subtidal specimen, respectively.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator
1	Sample ID	Sample ID		Petersen, Jassin
2	Magallana gigas, δ18O	M. gigas δ18O	‰ PDB	Petersen, Jassin
3	Magallana gigas, Manganese/Calcium ratio	M. gigas Mn/Ca	mmol/mol	Petersen, Jassin
4	Magallana gigas, Manganese/Calcium ratio, standard deviation	M. gigas Mn/Ca std dev	±	Petersen, Jassin
5	Magallana gigas, Magnesium/Calcium ratio	M. gigas Mg/Ca	mmol/mol	Petersen, Jassin
6	Magallana gigas, Magnesium/Calcium ratio, standard deviation	M. gigas Mg/Ca std dev	±	Petersen, Jassin
7	Magallana gigas, Strontium/Calcium ratio	M. gigas Sr/Ca	mmol/mol	Petersen, Jassin
8	Magallana gigas, Strontium/Calcium ratio, standard deviation	M. gigas Sr/Ca std dev	±	Petersen, Jassin
9	Distance	Dist	mm	Petersen, Jassin

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1455 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Sample ID	2 M. gigas δ18O [‰ PDB]	3 M. gigas Mn/Ca [mmol/mol]	4 M. gigas Mn/Ca std dev [±]	5 M. gigas Mg/Ca [mmol/mol]	6 M. gigas Mg/Ca std dev [±]	7 M. gigas Sr/Ca [mmol/mol]	8 M. gigas Sr/Ca std dev [±]	9 Dist [mm]
Intertidal 1	-0.37	0.015	0.002	5.834	0.001	0.696	0.000	0.11
Intertidal 2	0.14							0.28
Intertidal 3	0.08			4.030	0.005	0.702	0.001	0.43
Intertidal 4	-0.04	0.018	0.003	3.992	0.005	0.715	0.001	0.66
Intertidal 5	-0.66	0.017	0.006	3.712	0.001	0.740	0.001	0.90
Intertidal 6	-1.34	0.017	0.012	5.090	0.003	0.728	0.000	1.14
Intertidal 7	-0.95	0.013	0.005	5.446	0.003	0.711	0.001	1.39
Intertidal 8	-0.74	0.018	0.000	4.880	0.002	0.705	0.001	1.65
Intertidal 9	-0.65	0.020	0.004	4.676	0.001	0.738	0.000	1.89
Intertidal 10	-1.13	0.029	0.001	4.769	0.002	0.737	0.001	2.13
Intertidal 11	-1.08	0.037	0.002	5.432	0.003	0.710	0.002	2.41
Intertidal 12	-0.62	0.050	0.001	5.539	0.001	0.685	0.001	2.71
Intertidal 13	-0.47	0.032	0.001	5.417	0.002	0.663	0.001	3.01
Intertidal 14	-0.57	0.022	0.002	5.376	0.003	0.689	0.001	3.30
Intertidal 15	-1.05	0.021	0.002	5.761	0.002	0.724	0.001	3.60
Intertidal 16	-1.39	0.032	0.002	6.703	0.004	0.715	0.000	3.90
Intertidal 17	-1.50	0.039	0.001	7.238	0.005	0.718	0.002	4.20
Intertidal 18	-0.99	0.036	0.001	6.861	0.005	0.689	0.000	4.47
Intertidal 19	-0.22	0.018	0.002	5.283	0.002	0.682	0.001	4.75
Intertidal 20	-0.16	0.014	0.001	4.446	0.002	0.737	0.001	5.03
Intertidal 21	-0.72	0.021	0.001	6.624	0.001	0.761	0.001	5.30
Intertidal 22	-1.53	0.025	0.002	7.688	0.005	0.754	0.001	5.58
Intertidal 23	-1.48	0.037	0.000	7.842	0.003	0.747	0.001	5.84
Intertidal 24	-1.65	0.042	0.002	7.580	0.006	0.755	0.001	6.10
Intertidal 25	-1.44	0.043	0.003	7.718	0.006	0.735	0.000	6.38
Intertidal 26	-0.74	0.029	0.001	6.596	0.001	0.679	0.001	6.65
Intertidal 27	-0.19	0.023	0.001	6.161	0.001	0.665	0.002	6.92
Intertidal 28	0.52	0.014	0.001	4.754	0.001	0.756	0.000	7.19
Intertidal 29	-0.40	0.017	0.001	5.570	0.001	0.854	0.005	7.46
Intertidal 30	-0.72	0.023	0.003	6.250	0.004	0.900	0.001	7.73
Intertidal 31	-0.98	0.024	0.000	6.912	0.018	0.906	0.002	7.99
Intertidal 32	-1.44	0.024	0.002	7.823	0.005	0.810	0.005	8.27
Intertidal 33	-1.47	0.026	0.002	7.824	0.002	0.831	0.000	8.54
Intertidal 34	-1.64	0.036	0.001	8.551	0.003	0.847	0.002	8.81
Intertidal 35	-1.38	0.039	0.002	8.195	0.006	0.854	0.001	9.08
Intertidal 36	-1.37	0.045	0.002	7.996	0.008	0.819	0.001	9.37
Intertidal 37	-1.13	0.044	0.001	7.579	0.003	0.806	0.002	9.63
Intertidal 38	-0.65	0.033	0.000	7.015	0.001	0.742	0.000	9.89
Intertidal 39	0.07	0.014	0.001	5.631	0.001	0.660	0.000	10.18
Intertidal 40	0.71	0.011	0.002	5.192	0.001	0.646	0.000	10.45
Intertidal 41	0.34			5.096	0.004	0.825	0.001	10.73
Intertidal 42	-0.33	0.015	0.001	5.809	0.002	0.895	0.000	10.99
Intertidal 43	-0.94	0.019	0.001	6.293	0.004	0.997	0.002	11.28
Intertidal 44	-0.84	0.022	0.001	6.745	0.004	1.002	0.002	11.55
Intertidal 45	-1.11	0.025	0.002	7.425	0.003	1.024	0.000	11.83
Intertidal 46	-1.94	0.034	0.000	8.067	0.005	1.094	0.001	12.10
Intertidal 47	-1.99	0.042	0.001	8.494	0.003	1.066	0.001	12.39
Intertidal 48	-1.88	0.044	0.002	8.185	0.001	1.042	0.001	12.63
Intertidal 49	-1.77	0.036	0.001	7.811	0.005	1.022	0.002	12.88
Intertidal 50	-2.06	0.036	0.001	8.471	0.004	1.008	0.001	13.11
Intertidal 51	-1.81	0.026	0.001	7.652	0.009	0.948	0.000	13.34
Intertidal 52	-1.63	0.029	0.002	7.490	0.005	0.858	0.002	13.59
Intertidal 53	-1.51	0.030	0.004	7.919	0.002	0.815	0.001	13.83
Intertidal 54	-1.23	0.027	0.004	6.086	0.005	0.772	0.001	14.08
Intertidal 55	-0.12	0.011	0.002	6.240	0.002	0.639	0.001	14.32
Intertidal 56	0.21			6.388	0.003	0.617	0.001	14.59
Intertidal 57	0.01			6.046	0.001	0.787	0.001	14.88
Intertidal 58	-0.84	0.013	0.001	6.998	0.005	0.899	0.001	15.16
Intertidal 59	-1.27	0.018	0.001	7.905	0.003	0.969	0.002	15.43
Intertidal 60	-1.53	0.023	0.001	8.577	0.003	0.985	0.002	15.72
Intertidal 61	-1.60	0.022	0.001	8.686	0.006	1.009	0.000	15.99
Intertidal 62	-1.70	0.021	0.001	8.786	0.002	1.045	0.000	16.26
Intertidal 63	-1.72	0.024	0.003	8.358	0.005	1.055	0.001	16.54
Intertidal 64	-1.64	0.029	0.002	8.355	0.002	0.994	0.001	16.83
Intertidal 65	-2.14	0.033	0.002	9.668	0.005	0.940	0.001	17.10
Intertidal 66	-2.25	0.045	0.002	10.630	0.004	0.964	0.001	17.38
Intertidal 67	-2.20	0.041	0.003	10.980	0.005	0.994	0.002	17.64
Intertidal 68	-1.99	0.034	0.003	10.586	0.001	0.978	0.000	17.89
Intertidal 69	-1.99	0.029	0.003	9.844	0.009	0.986	0.001	18.11
Intertidal 70	-1.61	0.024	0.001	9.386	0.003	0.977	0.008	18.31
Intertidal 71	-1.24	0.020	0.002	8.684	0.001	0.903	0.001	18.53
Intertidal 72	-0.96	0.018	0.003	7.897	0.002	0.930	0.001	18.74
Intertidal 73		0.032	0.002	7.581	0.003	0.884	0.001
Intertidal74	-0.53	0.026	0.004	7.634	0.002	0.775	0.001	19.15
Intertidal75	0.77			7.924	0.006	0.656	0.001	19.36
Intertidal76	0.80			6.076	0.003	0.738	0.001	19.57
Intertidal77	-0.34			7.341	0.013	0.932	0.002	19.81
Intertidal78	-0.64			6.788	0.003	0.934	0.001	19.97
Intertidal79	-0.50	0.011	0.003	6.299	0.003	0.953	0.002	20.14
Intertidal80	-0.51			7.068	0.003	1.035	0.000	20.32
Intertidal81	-0.81	0.015	0.002	7.091	0.004	1.037	0.001	20.54
Intertidal82	-0.81	0.014	0.003	7.680	0.004	1.040	0.002	20.73
Intertidal83	-1.14	0.017	0.002	7.499	0.006	1.061	0.001	20.95
Intertidal84	-1.23	0.018	0.005	8.440	0.006	1.101	0.001	21.12
Intertidal85	-1.78	0.028	0.002	9.464	0.002	1.190	0.002	21.35
Subtidal 1	0.66	0.321	0.006	16.877	0.005	0.801	0.001	0.14
Subtidal 2	0.50	0.021	0.001	9.112	0.001	0.665	0.000	0.29
Subtidal 3	-0.49	0.043	0.001	10.650	0.009	0.713	0.001	0.45
Subtidal 4	-1.19	0.045	0.005	11.370	0.003	0.713	0.001	0.60
Subtidal 5	-1.57	0.049	0.003	11.134	0.002	0.697	0.000	0.77
Subtidal 6	-1.35	0.024	0.003	9.899	0.003	0.668	0.001	0.94
Subtidal 7	-1.07	0.033	0.006	9.002	0.002	0.680	0.000	1.09
Subtidal 8	-0.90	0.031	0.002	7.458	0.005	0.701	0.001	1.29
Subtidal 9	-0.62	0.047	0.000	6.673	0.002	0.670	0.002	1.48
Subtidal 10	-0.04	0.050	0.003	7.387	0.003	0.667	0.001	1.67
Subtidal 11	0.60	0.025	0.003	4.840	0.001	0.629	0.001	1.85
Subtidal 12	0.83	0.012	0.003	6.022	0.002	0.599	0.001	2.03
Subtidal 13	0.48	0.012	0.003	7.362	0.002	0.659	0.001	2.25
Subtidal 14	-0.50	0.016	0.002	8.223	0.004	0.743	0.002	2.45
Subtidal 15	0.19	0.021	0.002	7.615	0.001	0.804	0.001	2.67
Subtidal 16	-0.85	0.027	0.009	8.466	0.006	0.808	0.001	2.89
Subtidal 17	-0.76	0.144	0.002	9.614	0.002	0.835	0.002	3.12
Subtidal 18	-0.82	0.062	0.004	9.001	0.005	0.830	0.001	3.35
Subtidal 19	-0.71	0.051	0.000	8.341	0.010	0.819	0.001	3.58
Subtidal 20	-0.90	0.060	0.001	9.231	0.006	0.802	0.000	3.80
Subtidal 21	-0.77	0.040	0.002	7.927	0.005	0.736	0.001	4.01
Subtidal 22	-1.08	0.057	0.001	8.598	0.004	0.751	0.001	4.23
Subtidal 23	-0.95	0.090	0.004	8.358	0.002	0.726	0.000	4.44
Subtidal 24	-0.93	0.073	0.003	7.952	0.005	0.729	0.001	4.66
Subtidal 25	-0.82	0.082	0.002	8.473	0.002	0.733	0.001	4.88
Subtidal 26	-0.57	0.078	0.004	7.541	0.003	0.718	0.001	5.07
Subtidal 27	-0.28	0.046	0.003	7.355	0.003	0.691	0.001	5.28
Subtidal 28	0.09	0.048	0.003	10.054	0.009	0.688	0.001	5.50
Subtidal 29	-0.34	0.017	0.002	7.090	0.003	0.785	0.001	5.72
Subtidal 30	-0.60	0.019	0.006	6.692	0.007	0.859	0.001	5.95
Subtidal 31	-0.63	0.052	0.003	7.996	0.001	0.855	0.001	6.17
Subtidal 32	-0.75	0.033	0.002	7.979	0.003	0.833	0.001	6.39
Subtidal 33	-1.20	0.040	0.003	8.942	0.001	0.888	0.001	6.60
Subtidal 34	-1.36	0.050	0.015	8.474	0.006	0.883	0.002	6.81
Subtidal 35	-1.57	0.088	0.003	10.956	0.005	0.791	0.002	7.03
Subtidal 36	-1.79	0.059	0.003	10.353	0.006	0.788	0.001	7.23
Subtidal 37	-1.88	0.074	0.003	10.579	0.005	0.820	0.002	7.44
Subtidal 38	-1.28	0.063	0.001	9.290	0.005	0.822	0.001	7.66
Subtidal 39	-1.03	0.059	0.001	7.257	0.002	0.844	0.001	7.89
Subtidal 40	-0.48	0.066	0.002	8.217	0.006	0.728	0.001	8.11
Subtidal 41	-0.17	0.057	0.002	6.966	0.004	0.750	0.000	8.33
Subtidal 42	-0.14	0.068	0.000	8.097	0.002	0.683	0.001	8.57
Subtidal 43	0.72	0.029	0.007	8.518	0.004	0.638	0.002	8.79
Subtidal 44	0.43	0.019	0.001	5.788	0.001	0.714	0.001	9.03
Subtidal 45	-0.27	0.029	0.000	6.265	0.002	0.813	0.000	9.28
Subtidal 46	-0.75	0.028	0.003	6.012	0.004	0.822	0.001	9.52
Subtidal 47	-1.40	0.031	0.001	6.896	0.002	0.816	0.001	9.79
Subtidal 48	-1.66	0.031	0.002	5.321	0.002	0.779	0.001	10.08
Subtidal 49	-1.65	0.052	0.004	7.097	0.008	0.728	0.002	10.37
Subtidal 50	-1.50	0.065	0.002	7.556	0.004	0.755	0.001	10.61
Subtidal 51	-1.47	0.048	0.002	6.588	0.006	0.734	0.002	10.91
Subtidal 52	-1.07	0.039	0.003	5.756	0.004	0.719	0.002	11.18
Subtidal 53	-0.91	0.035	0.003	5.077	0.002	0.750	0.001	11.46
Subtidal 54	-0.73	0.034	0.002	5.170	0.000	0.719	0.001	11.72
Subtidal 55	0.68	0.017	0.003	4.973	0.001	0.667	0.002	12.00
Subtidal 56	0.31	0.016	0.007	4.812	0.003	0.751	0.001	12.27
Subtidal 57	0.01	0.016	0.002	4.799	0.003	0.834	0.002	12.54
Subtidal 58	-0.26	0.023	0.001	5.221	0.002	0.899	0.001	12.81
Subtidal 59	-0.51	0.032	0.001	5.779	0.002	0.933	0.000	13.09
Subtidal 60	-0.95	0.027	0.002	4.549	0.002	0.987	0.001	13.35
Subtidal 61	-1.30	0.024	0.001	6.046	0.003	1.027	0.001	13.61
Subtidal 62	-1.28	0.029	0.002	5.031	0.003	1.002	0.004	13.89
Subtidal 63	-1.58	0.035	0.000	6.579	0.005	1.003	0.001	14.15
Subtidal 64	-1.86	0.034	0.001	4.479	0.001	0.945	0.001	14.42
Subtidal 65	-1.95	0.040	0.001	5.406	0.004	0.898	0.003	14.70
Subtidal 66	-1.62	0.042	0.002	4.634	0.002	0.901	0.000	14.96
Subtidal 67	-1.62	0.040	0.001	5.616	0.002	0.864	0.002	15.22
Subtidal 68	-1.68	0.050	0.001	5.009	0.001	0.828	0.002	15.50
Subtidal 69	-1.37	0.049	0.001	5.025	0.007	0.837	0.002	15.75
Subtidal 70	-1.31	0.045	0.002	4.985	0.003	0.829	0.002	16.02
Subtidal 71	-1.37	0.042	0.003	5.387	0.001	0.854	0.000	16.27
Subtidal 72	-0.65	0.058	0.001	5.542	0.004	0.868	0.002	16.53
Subtidal 73	-0.75	0.065	0.002	4.693	0.003	0.884	0.001	16.81
Subtidal 74	-1.03	0.050	0.000	4.545	0.003	0.863	0.002	17.06
Subtidal 75	-0.90	0.030	0.001	4.313	0.004	0.813	0.001	17.30
Subtidal 76	-0.32	0.024	0.001	3.796	0.001	0.765	0.001	17.53
Subtidal 77	-0.02	0.016	0.002	3.621	0.003	0.715	0.001	17.80
Subtidal 78	-0.01			3.339	0.003	0.656	0.001	18.04
Subtidal 79	0.04			3.532	0.001	0.681	0.001	18.30
Subtidal 80	-0.53	0.012	0.001	3.477	0.001	0.795	0.001	18.58