Volume 15, issue 13 | Copyright
Biogeosciences, 15, 3975-4001, 2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 05 Jul 2018

Research article | 05 Jul 2018

A 1500-year multiproxy record of coastal hypoxia from the northern Baltic Sea indicates unprecedented deoxygenation over the 20th century

Sami A. Jokinen et al.
Related authors
Relative timing of precipitation and ocean circulation changes in the western equatorial Atlantic over the last 45 kyr
Claire Waelbroeck, Sylvain Pichat, Evelyn Böhm, Bryan C. Lougheed, Davide Faranda, Mathieu Vrac, Lise Missiaen, Natalia Vazquez Riveiros, Pierre Burckel, Jörg Lippold, Helge W. Arz, Trond Dokken, François Thil, and Arnaud Dapoigny
Clim. Past, 14, 1315-1330, https://doi.org/10.5194/cp-14-1315-2018,https://doi.org/10.5194/cp-14-1315-2018, 2018
Impacts of flocculation on the distribution and diagenesis of iron in boreal estuarine sediments
Tom Jilbert, Eero Asmala, Christian Schröder, Rosa Tiihonen, Jukka-Pekka Myllykangas, Joonas J. Virtasalo, Aarno Kotilainen, Pasi Peltola, Päivi Ekholm, and Susanna Hietanen
Biogeosciences, 15, 1243-1271, https://doi.org/10.5194/bg-15-1243-2018,https://doi.org/10.5194/bg-15-1243-2018, 2018
Middle to Late Holocene mobilization of DOC-bound Pb and Y in the Magellanic moorlands (53° S) as a function of sea spray fertilization, climate variations and volcanic fallout? A preliminary report
Björn Klaes, Rolf Kilian, Gerhard Wörner, Sören Thiele-Bruhn, and Helge W. Arz
E&G Quaternary Sci. J., 67, 1-6, https://doi.org/10.5194/egqsj-67-1-2018,https://doi.org/10.5194/egqsj-67-1-2018, 2018
Effects of the 2014 major Baltic inflow on methane and nitrous oxide dynamics in the water column of the central Baltic Sea
Jukka-Pekka Myllykangas, Tom Jilbert, Gunnar Jakobs, Gregor Rehder, Jan Werner, and Susanna Hietanen
Earth Syst. Dynam., 8, 817-826, https://doi.org/10.5194/esd-8-817-2017,https://doi.org/10.5194/esd-8-817-2017, 2017
Anaerobic oxidation of methane alters sediment records of sulfur, iron and phosphorus in the Black Sea
Matthias Egger, Peter Kraal, Tom Jilbert, Fatimah Sulu-Gambari, Célia J. Sapart, Thomas Röckmann, and Caroline P. Slomp
Biogeosciences, 13, 5333-5355, https://doi.org/10.5194/bg-13-5333-2016,https://doi.org/10.5194/bg-13-5333-2016, 2016
Related subject area
Paleobiogeoscience: Marine Record
Coastal primary productivity changes over the last millennium: a case study from the Skagerrak (North Sea)
Anna Binczewska, Bjørg Risebrobakken, Irina Polovodova Asteman, Matthias Moros, Amandine Tisserand, Eystein Jansen, and Andrzej Witkowski
Biogeosciences Discuss., https://doi.org/10.5194/bg-2018-94,https://doi.org/10.5194/bg-2018-94, 2018
Revised manuscript accepted for BG
Technical note: An empirical method for absolute calibration of coccolith thickness
Saúl González-Lemos, José Guitián, Miguel-Ángel Fuertes, José-Abel Flores, and Heather M. Stoll
Biogeosciences, 15, 1079-1091, https://doi.org/10.5194/bg-15-1079-2018,https://doi.org/10.5194/bg-15-1079-2018, 2018
Reconstructing Holocene temperature and salinity variations in the western Baltic Sea region: a multi-proxy comparison from the Little Belt (IODP Expedition 347, Site M0059)
Ulrich Kotthoff, Jeroen Groeneveld, Jeanine L. Ash, Anne-Sophie Fanget, Nadine Quintana Krupinski, Odile Peyron, Anna Stepanova, Jonathan Warnock, Niels A. G. M. Van Helmond, Benjamin H. Passey, Ole Rønø Clausen, Ole Bennike, Elinor Andrén, Wojciech Granoszewski, Thomas Andrén, Helena L. Filipsson, Marit-Solveig Seidenkrantz, Caroline P. Slomp, and Thorsten Bauersachs
Biogeosciences, 14, 5607-5632, https://doi.org/10.5194/bg-14-5607-2017,https://doi.org/10.5194/bg-14-5607-2017, 2017
The oxic degradation of sedimentary organic matter 1400 Ma constrains atmospheric oxygen levels
Shuichang Zhang, Xiaomei Wang, Huajian Wang, Emma U. Hammarlund, Jin Su, Yu Wang, and Donald E. Canfield
Biogeosciences, 14, 2133-2149, https://doi.org/10.5194/bg-14-2133-2017,https://doi.org/10.5194/bg-14-2133-2017, 2017
Geochemical and microstructural characterisation of two species of cool-water bivalves (Fulvia tenuicostata and Soletellina biradiata) from Western Australia
Liza M. Roger, Annette D. George, Jeremy Shaw, Robert D. Hart, Malcolm Roberts, Thomas Becker, Bradley J. McDonald, and Noreen J. Evans
Biogeosciences, 14, 1721-1737, https://doi.org/10.5194/bg-14-1721-2017,https://doi.org/10.5194/bg-14-1721-2017, 2017
Cited articles
Adelson, J. M., Helz, G. R., and Miller, C. V.: Reconstructing the rise of recent coastal anoxia; molybdenum in Chesapeake Bay sediments, Geochim. Cosmochim. Ac., 65, 237–252, https://doi.org/10.1016/S0016-7037(00)00539-1, 2001.
Algeo, T. J. and Lyons, T. W.: Mo–total organic carbon covariation in modern anoxic marine environments: Implications for analysis of paleoredox and paleohydrographic conditions, Paleoceanography, 21, PA1016, https://doi.org/10.1029/2004PA001112, 2006.
Algeo, T. J. and Rowe, H.: Paleoceanographic applications of trace-metal concentration data, Chem. Geol., 324, 6–18, https://doi.org/10.1016/j.chemgeo.2011.09.002, 2012.
Almroth-Rosell, E., Edman, M., Eilola, K., Meier, H. E. M., and Sahlberg, J.: Modelling nutrient retention in the coastal zone of an eutrophic sea, Biogeosciences, 13, 5753–5769, https://doi.org/10.5194/bg-13-5753-2016, 2016.
Altabet, M. A. and Francois, R.: Sedimentary nitrogen isotopic ratio as recorder for surface ocean nitrate utilization, Global Biogeochem. Cy., 8, 103–116, https://doi.org/10.1029/93GB03396, 1994.
Publications Copernicus
Short summary
Oxygen deficiency is a major environmental problem deteriorating seafloor habitats especially in the coastal ocean with large human impact. Here we apply a wide set of chemical and physical analyses to a 1500-year long sediment record and show that, although long-term climate variability has modulated seafloor oxygenation in the coastal northern Baltic Sea, the oxygen loss over the 20th century is unprecedentedly severe, emphasizing the need to reduce anthropogenic nutrient input in the future.
Oxygen deficiency is a major environmental problem deteriorating seafloor habitats especially in...