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BaltRap:
"BaltRap - The Baltic Sea and its Southern Lowlands: Proxy-Environment interactions in times of rapid changes"

Duration:
01.02.2017 - 30.11.2021
Project manager:
Prof. Dr. Helge Arz
Funding:
Leibniz-Gemeinschaft
Website:
https://www.io-warnemuende.de/geo-projekte-baltrap.html
Researchfocus:
Focus 3: Changing Ecosystems
Partners:
Universität Greifswald
Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)
Deutsches GeoForschungsZentrum
University of Szczecin, Paleooceanology Unit
Institute of Geography and Spatial Organization, Polish Academy of Sciences
Deutsches Deutsches Archäologisches Institut (DAI)

The coupled marine-terrestrial system of the Baltic Sea and its southern lowlands  is highly sensitive to both  natural  climate  forcing and  human impact. To comprehensively understand the impact of rapid climate change in the southern Baltic Sea region (SBSR) and to distinguish between natural and human forcing, our  BaltRap  network aims, for the first time,  at  integrating  high-resolution marine  (sediments)  and terrestrial  (lake  sediments  and tree  rings)  proxy  archives. Considering the wide range of temporal and spatial scales involved in shaping system  dynamics,  we expect  significant  differences in  the response  time  and magnitude  of  the considered  environments.  Beyond instrumental observations  only  a  rigorous proxy development,  testing, and application tailored to  the different  bio-  and  geo-archives  based on precise and accurate chronologies  will enable us to address the following main goals:  1. Comprehensive  understanding of  the environmental responses  and response times  of marine and terrestrial/limnic systems to gradual changes, major climatic transitions, and short-term climate oscillations during the Holocene 2.  Integration and precise synchronization of the various proxy records from brackish/marine and terrestrial/limnic systems  in the  SBSR  to grasp the  entire range of  interactions between the Baltic Sea and its adjacent terrestrial systems 3. Distinction of  natural variability  from  the increasing influence of human societies in the later Holocene (particularly in the last century) to better project 21st century dynamics.

Publikationen

  • Ostrander, C. M., Y. Shu, S. G. Nielsen, O. Dellwig, J. Blusztajn, H. N. Schulz-Vogt, V. Hübner and C. M. Hansel (2024). Anthropogenic forcing of the Baltic Sea thallium cycle. Environ. Sci. Technol. 58: 8510-8517, doi: 10.1021/acs.est.4c01487
  • Yang, R., T. Li, D. Stubbs, T. Chen, S. Liu, D. B. Kemp, W. Li, S. Yang, J. Chen, T. Elliott, O. Dellwig, J. Chen and G. Li (2022). Stable tungsten isotope systematics on the Earth’s surface. Geochim. Cosmochim. Acta 322: 227-243, doi: 10.1016/j.gca.2022.01.006
  • Janssen, D. J., J. Rickli, M. Wille, O. Sepúlveda Steiner, H. Vogel, O. Dellwig, J. S. Berg, D. Bouffard, M. A. Lever, C. S. Hassler and S. L. Jaccard (2022). Chromium cycling in redox-stratified basins challenges δ53Cr paleoredox proxy applications. Geophys. Res. Lett. 49: e2022GL099154, doi: 10.1029/2022GL099154
  • Roeser, P., Dräger, N., Brykała, D., Ott, F., Pinkerneil, S., Gierszewski, P., Lindemann, C., Plessen, B., Brademann, B., Kaszubski, M., Fojutowski, M., Schwab, M. J., Słowiński, M., Błaszkiewicz, M., Brauer, A. (2021): TERENO Monitoring data from Lake Tiefer See and Lake Czechowskie (2012-2017)., https://doi.org/10.5880/GFZ.4.3.2020.003
  • Kaiser, J. and M. Lerch (2022). Sedimentary faecal lipids as indicators of Baltic Sea sewage pollution and population growth since 1860 AD. Environ. Res. 204: 112305, doi: 10.1016/j.envres.2021.112305
  • Kurzweil, F., O. Dellwig, M. Wille, R. Schoenberg, H. W. Arz and C. Münker (2022). The stable tungsten isotope composition of sapropels and manganese-rich sediments from the Baltic Sea. Earth Planet. Sci. Lett. 578: 117303, doi: 10.1016/j.epsl.2021.117303
  • Nwosu, E. C., P. Roeser, S. Yang, S. Pinkerneil, L. Ganzert, E. Dittmann, A. Brauer, D. Wagner and S. Liebner (2021). Species-level spatio-temporal dynamics of cyanobacteria in a hard-water temperate lake in the southern Baltics. Front. Microbiol. 12: 761259, doi: 10.3389/fmicb.2021.761259
  • Nwosu, E. C., A. Brauer, J. Kaiser, F. Horn, D. Wagner and S. Liebner (2021). Evaluating sedimentary DNA for tracing changes in cyanobacteria dynamics from sediments spanning the last 350 years of Lake Tiefer See, NE Germany. J. Paleolimnol. 66: 279-296, doi: 10.1007/s10933-021-00206-9
  • Nwosu, E. C., P. Roeser, S. Yang, L. Ganzert, O. Dellwig, S. Pinkerneil, A. Brauer, E. Dittmann, D. Wagner and S. Liebner (2021). From water into sediment - tracing freshwater cyanobacteria via DNA analyses. Microorganisms 9: 1778, doi: doi:10.3390/microorganisms9081778
  • Lin, M., J. Qiao, X. Hou, O. Dellwig, P. Steier, K. Hain, R. Golser and L. Zhu (2021). 70-year anthropogenic uranium imprints of nuclear activities in Baltic Sea sediments. Environ. Sci. Technol. 55: 8918-8927, doi: 10.1021/acs.est.1c02136
  • Dellwig, O., A. Wegwerth and H. W. Arz (2021). Anatomy of the Major Baltic Inflow in 2014: Impact of manganese and iron shuttling on phosphorus and trace metals in the Gotland Basin, Baltic Sea. Cont. Shelf Res. 223: 104449, doi: 10.1016/j.csr.2021.104449
  • Kurzweil, F., C. Archer, M. Wille, R. Schoenberg, C. Münker and O. Dellwig (2021). Redox control on the tungsten isotope composition of seawater. Proc. Nat. Acad. Sci. U.S.A. 118: e2023544118, doi: 10.1073/pnas.2023544118
  • Nantke, C. K. M., A. Brauer, P. J. Frings, M. Czymzik, T. Hübener, J. Stadmark, O. Dellwig, P. Roeser and D. J. Conley (2021). Human influence on the continental Si budget during the last 4300 years: δ30Sidiatom in varved lake sediments (Tiefer See, NE Germany). Quat. Sci. Rev. 258: 106869, doi: 10.1016/j.quascirev.2021.106869
  • Roeser, P., N. Dräger, D. Brykała, F. Ott, S. Pinkerneil, P. Gierszewski, C. Lindemann, B. Plessen, B. Brademann, M. Kaszubski, M. Fojutowski, M. J. Schwab, M. Słowiński, M. Błaszkiewicz and A. Brauer (2021). Advances in understanding calcite varve formation: new insights from a dual lake monitoring approach in the southern Baltic lowlands. Boreas 50: 419-440, doi: 10.1111/bor.12506
  • Scholtysik, G., O. Dellwig, P. Roeser, H. W. Arz, P. Casper, C. Herzog, T. Goldhammer and M. Hupfer (2020). Geochemical focusing and sequestration of manganese during eutrophication of Lake Stechlin (NE Germany). Biogeochemistry 151: 313-334, doi: 10.1007/s10533-020-00729-9
  • Kaiser, J., N. Wasmund, M. Kahru, A. K. Wittenborn, R. Hansen, K. Häusler, M. Moros, D. Schulz-Bull and H. W. Arz (2020). Reconstructing N2-fixing cyanobacterial blooms in the Baltic Sea beyond observations using 6- and 7-methylheptadecane in sediments as specific biomarkers. Biogeosciences 17: 2579-2591, doi: 10.5194/bg-17-2579-2020
  • Atar, E., C. März, A. C. Aplin, O. Dellwig, L. G. Herringshaw, V. Lamoureux-Var, M. J. Leng, B. Schnetger and T. Wagner (2019). Dynamic climate-driven controls on the deposition of the Kimmeridge Clay Formation in the Cleveland Basin, Yorkshire, UK. Clim. Past 15: 1581-1601, doi: 10.5194/cp-15-1581-2019
  • Kaiser, J., K. J. Wang, D. Rott, G. Li, Y. Zheng, L. Amaral-Zettler, H. W. Arz and Y. Huang (2019). Changes in long chain alkenone distributions and Isochrysidales groups along the Baltic Sea salinity gradient. Org. Geochem. 127: 92-103, doi: 10.1016/j.orggeochem.2018.11.012
  • Dellwig, O., A. Wegwerth, B. Schnetger, H. Schulz and H. W. Arz (2019). Dissimilar behaviors of the geochemical twins W and Mo in hypoxic-euxinic marine basins. Earth-Sci. Rev. 193: 1-23, doi: 10.1016/j.earscirev.2019.03.017
  • Dellwig, O., B. Schnetger, D. Meyer, F. Pollehne, K. Häusler and H. W. Arz (2018). Impact of the major Baltic inflow in 2014 on manganese cycling in the Gotland Deep (Baltic Sea). Front. Mar. Sci. 5: 248, doi: 10.3389/fmars.2018.00248
  • Kaiser, J., M. T. J. v. d. Meer and H. W. Arz (2017). Long-chain alkenones in Baltic Sea surface sediments: new insights. Org. Geochem. 112: 93-104, doi: 10.1016/j.orggeochem.2017.07.002