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  "author": null,
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  "author": null,
            
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  "code": "7b.b.x",
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  "code": "7b.b.x",
            
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  "contributor": "NIOZ Royal Netherlands Institute for Sea Research",
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  "contributor": "NIOZ Royal Netherlands Institute for Sea Research",
            
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  "creators": "[{\"firstname\":\"Gabriella 
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  "creators": "[{\"firstname\":\"Gabriella 
            
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M.\",\"lastname\":\"Weiss\",\"affiliation\":\"Royal Netherlands 
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M.\",\"lastname\":\"Weiss\",\"affiliation\":\"Royal Netherlands 
            
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Institute for Sea 
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Institute for Sea 
            
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\":\"Barbara\",\"lastname\":\"Massalska\",\"affiliation\":\"University 
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\":\"Barbara\",\"lastname\":\"Massalska\",\"affiliation\":\"University 
            
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of Warsaw, 
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of Warsaw, 
            
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firstname\":\"Rick\",\"lastname\":\"Hennekam\",\"affiliation\":\"Royal 
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firstname\":\"Rick\",\"lastname\":\"Hennekam\",\"affiliation\":\"Royal 
            
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Netherlands Institute for Sea 
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Netherlands Institute for Sea 
            
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tname\":\"Gert-Jan\",\"lastname\":\"Reichart\",\"affiliation\":\"Royal 
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tname\":\"Gert-Jan\",\"lastname\":\"Reichart\",\"affiliation\":\"Royal 
            
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Netherlands Institute for Sea 
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Netherlands Institute for Sea 
            
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rstname\":\"Stefan\",\"lastname\":\"Schouten\",\"affiliation\":\"Royal 
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rstname\":\"Stefan\",\"lastname\":\"Schouten\",\"affiliation\":\"Royal 
            
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Netherlands Institute for Sea 
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Netherlands Institute for Sea 
            
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ondingauthor\":false},{\"firstname\":\"Jaap\",\"lastname\":\"Sinninghe 
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ondingauthor\":false},{\"firstname\":\"Jaap\",\"lastname\":\"Sinninghe 
            
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Damste\",\"affiliation\":\"Royal Netjerlands Institute for Sea 
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Damste\",\"affiliation\":\"Royal Netjerlands Institute for Sea 
            
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ddress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Marcel 
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ddress\":\"\",\"iscorrespondingauthor\":false},{\"firstname\":\"Marcel 
            
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T. J.\",\"lastname\":\"van der Meer\",\"affiliation\":\"Royal 
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T. J.\",\"lastname\":\"van der Meer\",\"affiliation\":\"Royal 
            
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Netherlands Institute for Sea 
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Netherlands Institute for Sea 
            
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752\",\"contactemailaddress\":\"\",\"iscorrespondingauthor\":false}]",
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752\",\"contactemailaddress\":\"\",\"iscorrespondingauthor\":false}]",
            
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  "dates": "",
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  "dates": "",
            
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  "deposit_date": "2020-02-01",
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  "deposit_date": "2020-02-01",
            
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  "depositor": "Gabriella Weiss",
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  "depositor": "Gabriella Weiss",
            
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  "distribution_date": "2020-02-01",
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  "distribution_date": "2020-02-01",
            
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  "distributor": "Research Data Management(NIOZ Royal Netherlands 
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  "distributor": "Research Data Management(NIOZ Royal Netherlands 
            
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Institute for Sea Research)",
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Institute for Sea Research)",
            
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  "doi_date_published": "2020-02-05",
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  "doi_date_published": "2020-02-05",
            
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  "funding_references": 
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  "funding_references": 
            
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SC\",\"awardnumber\":\"\",\"awardtitle\":\"\"},{\"name\":\"Gravitation 
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SC\",\"awardnumber\":\"\",\"awardtitle\":\"\"},{\"name\":\"Gravitation 
            
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Grant\",\"awardnumber\":\"024.002.001\",\"awardtitle\":\"\"}]",
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Grant\",\"awardnumber\":\"024.002.001\",\"awardtitle\":\"\"}]",
            
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  "name": "7bbx",
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  "name": "7bbx",
            
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  "notes": "The Baltic Sea, a dynamic, marginal marine basin, 
45
  "notes": "The Baltic Sea, a dynamic, marginal marine basin, 
            
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experienced a number of large changes in\nsalinity during the Holocene 
46
experienced a number of large changes in\nsalinity during the Holocene 
            
47
as a result of fluctuations in global and local sea level related 
47
as a result of fluctuations in global and local sea level related 
            
48
to\nmelting of glacial ice sheets and subsequent isostatic rebound. 
48
to\nmelting of glacial ice sheets and subsequent isostatic rebound. 
            
49
These changes likely had\npronounced effects on the species 
49
These changes likely had\npronounced effects on the species 
            
50
composition of haptophytes, a common phytoplankton group\nfound in the 
50
composition of haptophytes, a common phytoplankton group\nfound in the 
            
51
Baltic Sea. This dynamic environment provides the ideal setting to 
51
Baltic Sea. This dynamic environment provides the ideal setting to 
            
52
study how\nspecies change impacts distribution and hydrogen isotope 
52
study how\nspecies change impacts distribution and hydrogen isotope 
            
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ratios of long-chain alkenones\n(d2HC37), haptophyte-specific 
53
ratios of long-chain alkenones\n(d2HC37), haptophyte-specific 
            
54
biomarkers. Here we analyzed the aforementioned parameters 
54
biomarkers. Here we analyzed the aforementioned parameters 
            
55
in\nHolocene sediments covering the contrasting hydrological phases of 
55
in\nHolocene sediments covering the contrasting hydrological phases of 
            
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the Baltic Sea. Alkenone\ndistributions changed with different Baltic 
56
the Baltic Sea. Alkenone\ndistributions changed with different Baltic 
            
57
Sea salinity phases, suggesting that species shifts\ncoincide with 
57
Sea salinity phases, suggesting that species shifts\ncoincide with 
            
58
salinity change. d2HC37 values show two major shifts: one in the 
58
salinity change. d2HC37 values show two major shifts: one in the 
            
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middle of the\nfreshwater Ancylus Lake phase (10.6 to 7.7 ka) and a 
59
middle of the\nfreshwater Ancylus Lake phase (10.6 to 7.7 ka) and a 
            
60
second at the transition from the brackish\nLittorina Sea phase (7.2 
60
second at the transition from the brackish\nLittorina Sea phase (7.2 
            
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to 3 ka) into the fresher Modern Baltic (3 ka to the present). The 
61
to 3 ka) into the fresher Modern Baltic (3 ka to the present). The 
            
62
first\nshift represents a significant enrichment of 50 \u2030, which 
62
first\nshift represents a significant enrichment of 50 \u2030, which 
            
63
cannot be explained by salinity or\nspecies changes only. At this 
63
cannot be explained by salinity or\nspecies changes only. At this 
            
64
time, the isotopically depleted ice sheets had melted and only 
64
time, the isotopically depleted ice sheets had melted and only 
            
65
the\nrelatively enriched freshwater source remained. The second shift, 
65
the\nrelatively enriched freshwater source remained. The second shift, 
            
66
coincident with a change in\ndistribution, is likely caused by a 
66
coincident with a change in\ndistribution, is likely caused by a 
            
67
change in species composition alone. These findings show 
67
change in species composition alone. These findings show 
            
68
that\nhydrogen isotope ratios of long-chain alkenones, combined with 
68
that\nhydrogen isotope ratios of long-chain alkenones, combined with 
            
69
their relative distribution, can be\nused to reconstruct changes in 
69
their relative distribution, can be\nused to reconstruct changes in 
            
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source water.\n",
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source water.\n",
            
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  "subject": "Earth and Environmental Sciences",
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  "subject": "Earth and Environmental Sciences",
            
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  "tags": [
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  "tags": [
            
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    {
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    {
            
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      "display_name": "Alkenones",
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      "display_name": "Alkenones",
            
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      "display_name": "Geochemistry",
            
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    },
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    },
            
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      "display_name": "Haptophytes",
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      "display_name": "Haptophytes",
            
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      "id": "b9497b61-cc04-4262-af6a-e925b79297b1",
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      "id": "b9497b61-cc04-4262-af6a-e925b79297b1",
            
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      "name": "Haptophytes",
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      "name": "Haptophytes",
            
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    {
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      "display_name": "Hydrogen isotope ratios",
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      "display_name": "Hydrogen isotope ratios",
            
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      "id": "60e5d148-2783-42e3-b368-a1a726a459c0",
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      "name": "Hydrogen isotope ratios",
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    }
            
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  ],
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  ],
            
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  "title": "Suppl. Info - Alkenone distributions and hydrogen isotope 
176
  "title": "Suppl. Info - Alkenone distributions and hydrogen isotope 
            
155
ratios show changes in haptophyte species and source water in the 
177
ratios show changes in haptophyte species and source water in the 
            
156
Holo",
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Holo",
            
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  "type": "dataset",
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  "type": "dataset",
            
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  "url": "https://dataportal.nioz.nl/doi/10.33591/nioz/7b.b.x",
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