Articles | Volume 18, issue 14
https://doi.org/10.5194/bg-18-4369-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-4369-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Jul 2021
Research article |
| 28 Jul 2021
| 28 Jul 2021
Carbon sources of benthic fauna in temperate lakes across multiple trophic states
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
Eva Anthamatten
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
Longhui Deng
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
Xingguo Han
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
Lorenzo Lagostina
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
Anja Michel
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
Rong Zhu
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
Nathalie Dubois
Department Surface Waters – Research and Management, Eawag, Swiss Federal
Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600
Dübendorf, Switzerland
Department of Earth Sciences, ETH Zurich, Sonneggstrasse 5, 8092
Zurich, Switzerland
Carsten J. Schubert
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
Department of Surface Waters – Research and Management, Swiss
Federal Institute of Aquatic Science and Technology (EAWAG), Seestrasse 79,
6047 Kastanienbaum, Switzerland
Stefano M. Bernasconi
Department of Earth Sciences, ETH Zurich, Sonneggstrasse 5, 8092
Zurich, Switzerland
Mark A. Lever
CORRESPONDING AUTHOR
Institute of Biogeochemistry and Pollutant Dynamics (IBP), ETH
Zurich, Universitätstrasse 16, 8092 Zurich, Switzerland
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Annika Fiskal, Longhui Deng, Anja Michel, Philip Eickenbusch, Xingguo Han, Lorenzo Lagostina, Rong Zhu, Michael Sander, Martin H. Schroth, Stefano M. Bernasconi, Nathalie Dubois, and Mark A. Lever
Biogeosciences, 16, 3725–3746, https://doi.org/10.5194/bg-16-3725-2019, https://doi.org/10.5194/bg-16-3725-2019, 2019
Sonja Geilert, Christian Hensen, Mark Schmidt, Volker Liebetrau, Florian Scholz, Mechthild Doll, Longhui Deng, Annika Fiskal, Mark A. Lever, Chih-Chieh Su, Stefan Schloemer, Sudipta Sarkar, Volker Thiel, and Christian Berndt
Biogeosciences, 15, 5715–5731, https://doi.org/10.5194/bg-15-5715-2018, https://doi.org/10.5194/bg-15-5715-2018, 2018
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Abrupt climate changes in Earth’s history might have been triggered by magmatic intrusions into organic-rich sediments, which can potentially release large amounts of greenhouse gases. In the Guaymas Basin, vigorous hydrothermal venting at the ridge axis and off-axis inactive vents show that magmatic intrusions are an effective way to release carbon but must be considered as very short-lived processes in a geological sense. These results need to be taken into account in future climate models.
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Sigrid van Grinsven, Natsumi Maeda, Clemens Glombitza, Mark A. Lever, and Carsten J. Schubert
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Algal blooms in lakes can cause large amounts of organic material to sink to the bottom, leading to low oxygen conditions and increased methane emissions. This study shows that adding oxygen to the bottom waters reduces methane emissions by 50 %, even after oxygen levels drop again. The effect was consistent across lakes with different nutrient levels. These findings suggest that oxygenation could be an effective strategy to reduce methane emissions in lakes.
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EGUsphere, https://doi.org/10.5194/egusphere-2024-3052, https://doi.org/10.5194/egusphere-2024-3052, 2024
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We studied how temperature, pH, and oxygen levels affect bacterial lipids (brGDGTs) in lake water and sediment samples from Rotsee, a shallow freshwater lake. These lipids are used to reconstruct past climate conditions. Our findings show that stratification impacts brGDGT distribution in the lake surface, while chemistry influences distribution at the bottom, complicating their use as temperature indicators. This research provides new insights to improve climate reconstructions in lakes.
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Agriculture relies heavily on plastic mulch films, which may be transported to aquatic environments. We investigated the breakdown of soil-biodegradable agricultural mulch films in lake sediments. After 40 weeks, films were intact, and no significant CO2 or CH4 was produced from the biodegradable mulch films. We conclude that the mulch films we used have a low biodegradability in lake sediments. The sediment lacks the microbes needed to break down the biodegradable plastics that were used here.
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The addition of sulfur to organic matter is generally thought to protect it from microbial degradation. We analyzed buried sulfur compounds in a 10-m sediment core representing the entire ~13,500 year history of an alpine lake. Surprisingly, organic sulfur and pyrite formed very rapidly and were characterized by very light isotope signatures that suggest active microbial sulfur cycling in the deep subsurface.
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Clim. Past Discuss., https://doi.org/10.5194/cp-2021-172, https://doi.org/10.5194/cp-2021-172, 2022
Manuscript not accepted for further review
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We provide a ca. 1000 year long (6.4–5.4 ka BP) stalagmite-based reconstruction of mid-Holocene rainfall variability in the tropical western Pacific. The annually laminated multi-proxy (δ13C, δ18O, X/Ca, gray values) record comes from Niue island and informs on El Nino-Southern Oscillation and South Pacific Convergence Zone dynamics. Our data suggest that ENSO was active and influenced rainfall seasonality over the covered time interval. Rainfall seasonality was subdued during active ENSO phases
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We identified the provenance, (post)depositional history, weathering conditions and hydroclimate that formed the detrital and authigenic silicates and soil carbonates of the Valley of Lakes sediments in Central Asia during the Cenozoic (~34 to 21 Ma). Aridification pulses in continental Central Asia coincide with marine glaciation events and are caused by Cenozoic climate forcing and the exhumation of the Tian Shan, Hangay and Altai mountains, which reduced the moisture influx by westerly winds.
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The success of the geological storage of carbon dioxide is linked to the availability at depth of a capable reservoir and an impermeable caprock. The sealing capacity of the caprock is a key parameter for long-term CO2 containment. Faults crosscutting the caprock might represent preferential pathways for CO2 to escape. A decameter-scale experiment on injection in a fault, monitored by an integrated network of multiparamerter sensors, sheds light on the mobility of fluids within the fault.
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Hydrol. Earth Syst. Sci., 24, 2105–2120, https://doi.org/10.5194/hess-24-2105-2020, https://doi.org/10.5194/hess-24-2105-2020, 2020
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Annika Fiskal, Longhui Deng, Anja Michel, Philip Eickenbusch, Xingguo Han, Lorenzo Lagostina, Rong Zhu, Michael Sander, Martin H. Schroth, Stefano M. Bernasconi, Nathalie Dubois, and Mark A. Lever
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Hydrol. Earth Syst. Sci., 23, 3219–3232, https://doi.org/10.5194/hess-23-3219-2019, https://doi.org/10.5194/hess-23-3219-2019, 2019
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Maximilian Rieder, Wencke Wegner, Monika Horschinegg, Stefanie Klackl, Nereo Preto, Anna Breda, Susanne Gier, Urs Klötzli, Stefano M. Bernasconi, Gernot Arp, and Patrick Meister
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The formation of dolomite (CaMg(CO3)2), an abundant mineral in Earth's geological record, is still incompletely understood. We studied dolomites embedded in a 100 m thick succession of coastal alluvial clays of Triassic age in the southern Alps. Observation by light microscopy and Sr isotopes suggests that dolomites may spontaneously from concentrated evaporating seawater, in coastal ephemeral lakes or tidal flats along the western margin of the Triassic Tethys sea.
Sonja Geilert, Christian Hensen, Mark Schmidt, Volker Liebetrau, Florian Scholz, Mechthild Doll, Longhui Deng, Annika Fiskal, Mark A. Lever, Chih-Chieh Su, Stefan Schloemer, Sudipta Sarkar, Volker Thiel, and Christian Berndt
Biogeosciences, 15, 5715–5731, https://doi.org/10.5194/bg-15-5715-2018, https://doi.org/10.5194/bg-15-5715-2018, 2018
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Abrupt climate changes in Earth’s history might have been triggered by magmatic intrusions into organic-rich sediments, which can potentially release large amounts of greenhouse gases. In the Guaymas Basin, vigorous hydrothermal venting at the ridge axis and off-axis inactive vents show that magmatic intrusions are an effective way to release carbon but must be considered as very short-lived processes in a geological sense. These results need to be taken into account in future climate models.
S. Nemiah Ladd, Nathalie Dubois, and Carsten J. Schubert
Biogeosciences, 14, 3979–3994, https://doi.org/10.5194/bg-14-3979-2017, https://doi.org/10.5194/bg-14-3979-2017, 2017
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Hydrogen isotopes of lipids provide valuable information about microbial activity, climate, and environmental stress. We show that heavy hydrogen in fatty acids declines from spring to summer in a nutrient-rich and a nutrient-poor lake and that the effect is nearly 3 times as big in the former. This effect is likely a combination of increased biomass from algae, warmer temperatures, and higher algal growth rates.
F. Kobierska, T. Jonas, J. W. Kirchner, and S. M. Bernasconi
Hydrol. Earth Syst. Sci., 19, 3681–3693, https://doi.org/10.5194/hess-19-3681-2015, https://doi.org/10.5194/hess-19-3681-2015, 2015
C. von Sperber, F. Tamburini, B. Brunner, S. M. Bernasconi, and E. Frossard
Biogeosciences, 12, 4175–4184, https://doi.org/10.5194/bg-12-4175-2015, https://doi.org/10.5194/bg-12-4175-2015, 2015
R. Zhu, Y.-S. Lin, J. S. Lipp, T. B. Meador, and K.-U. Hinrichs
Biogeosciences, 11, 4869–4880, https://doi.org/10.5194/bg-11-4869-2014, https://doi.org/10.5194/bg-11-4869-2014, 2014
R. V. Hiller, D. Bretscher, T. DelSontro, T. Diem, W. Eugster, R. Henneberger, S. Hobi, E. Hodson, D. Imer, M. Kreuzer, T. Künzle, L. Merbold, P. A. Niklaus, B. Rihm, A. Schellenberger, M. H. Schroth, C. J. Schubert, H. Siegrist, J. Stieger, N. Buchmann, and D. Brunner
Biogeosciences, 11, 1941–1959, https://doi.org/10.5194/bg-11-1941-2014, https://doi.org/10.5194/bg-11-1941-2014, 2014
J. Friedrich, F. Janssen, D. Aleynik, H. W. Bange, N. Boltacheva, M. N. Çagatay, A. W. Dale, G. Etiope, Z. Erdem, M. Geraga, A. Gilli, M. T. Gomoiu, P. O. J. Hall, D. Hansson, Y. He, M. Holtappels, M. K. Kirf, M. Kononets, S. Konovalov, A. Lichtschlag, D. M. Livingstone, G. Marinaro, S. Mazlumyan, S. Naeher, R. P. North, G. Papatheodorou, O. Pfannkuche, R. Prien, G. Rehder, C. J. Schubert, T. Soltwedel, S. Sommer, H. Stahl, E. V. Stanev, A. Teaca, A. Tengberg, C. Waldmann, B. Wehrli, and F. Wenzhöfer
Biogeosciences, 11, 1215–1259, https://doi.org/10.5194/bg-11-1215-2014, https://doi.org/10.5194/bg-11-1215-2014, 2014
S. Naeher, M. Geraga, G. Papatheodorou, G. Ferentinos, H. Kaberi, and C. J. Schubert
Biogeosciences, 9, 5081–5094, https://doi.org/10.5194/bg-9-5081-2012, https://doi.org/10.5194/bg-9-5081-2012, 2012
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Biogeosciences, 22, 3533–3546, https://doi.org/10.5194/bg-22-3533-2025, https://doi.org/10.5194/bg-22-3533-2025, 2025
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We present the first coupled record of radiolarian silicon isotopes (δ30Sirad) from paired water column and surface sediment samples, along with the fractionation factor for δ30Sirad in the South China Sea. No significant discrepancies in δ30Sirad values were observed between plankton and sediment samples, implying minimal dissolution impact on δ30Sirad during sinking. This indicates faithful preservation of the δ30Sirad signature and its potential for studying past marine silicon cycle changes.
Vanessa M. Alfonso, Peter M. Groffman, Zhongqi Cheng, and David E. Seidemann
Biogeosciences, 22, 3357–3373, https://doi.org/10.5194/bg-22-3357-2025, https://doi.org/10.5194/bg-22-3357-2025, 2025
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Major questions in Critical Zone science center on the ability of ancient materials to support biogeochemical processes related to the cycling of carbon and nitrogen. This study sought to explore organomineral interactions by investigating the functional performance of clays through measurements of biogeochemical processes occurring on these materials. Results indicate that ancient clays are contributing to contemporary Critical Zone biogeochemical processes at ecosystem and landscape scales.
Frieda P. Giest, Maren Jenrich, Guido Grosse, Benjamin M. Jones, Kai Mangelsdorf, Torben Windirsch, and Jens Strauss
Biogeosciences, 22, 2871–2887, https://doi.org/10.5194/bg-22-2871-2025, https://doi.org/10.5194/bg-22-2871-2025, 2025
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Climate warming causes permafrost to thaw, releasing greenhouse gases and affecting ecosystems. We studied sediments from Arctic coastal landscapes, including land, lakes, lagoons, and the ocean, finding that organic carbon storage and quality vary with landscape features and saltwater influence. Freshwater and land areas store more carbon, while saltwater reduces its quality. These findings improve predictions of Arctic responses to climate change and their impact on global carbon cycling.
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EGUsphere, https://doi.org/10.5194/egusphere-2025-1255, https://doi.org/10.5194/egusphere-2025-1255, 2025
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This study aims to understand the impacts of deoxygenation and coastal eutrophication on sedimentary biogeochemical processes in the Marmara Sea. Our results showed that the dynamics of porewater nutrients, redox-sensitive elements, major ions involved in the diagenetic processes and also solid-state geochemistry in the Marmara Sea have been influenced by eutrophication and bottom water hypoxia/anoxia.
Ellen Schnabel, Aurèle Vuillemin, Cédric C. Laczny, Benoit J. Kunath, André R. Soares, Alexander J. Probst, Rolando Di Primio, Jens Kallmeyer, and the PROSPECTOMICS Consortium
Biogeosciences, 22, 767–784, https://doi.org/10.5194/bg-22-767-2025, https://doi.org/10.5194/bg-22-767-2025, 2025
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This study analysed marine sediment samples from areas with and without minimal hydrocarbon seepage from reservoirs underneath. Depth profiles of dissolved chemical components in the pore water and molecular biological data revealed differences in microbial community composition and activity. These results indicate that even minor hydrocarbon seepage affects sedimentary biogeochemical cycling in marine sediments, potentially providing a new tool for the detection of hydrocarbon reservoirs.
Robin Klomp, Olga M. Żygadłowska, Mike S. M. Jetten, Véronique E. Oldham, Niels A. G. M. van Helmond, Caroline P. Slomp, and Wytze K. Lenstra
Biogeosciences, 22, 751–765, https://doi.org/10.5194/bg-22-751-2025, https://doi.org/10.5194/bg-22-751-2025, 2025
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In marine sediments, dissolved Mn is present as either Mn(III) or Mn(II). We apply a reactive transport model to geochemical data for a seasonally anoxic and sulfidic coastal basin to determine the pathways of formation and removal of dissolved Mn(III) in the sediment. We demonstrate a critical role for reactions with Fe(II) and show evidence for substantial benthic release of dissolved Mn(III). Given the mobility of Mn(III), these findings have important implications for marine Mn cycling.
Amanda C. Semler and Anne E. Dekas
Biogeosciences, 22, 385–403, https://doi.org/10.5194/bg-22-385-2025, https://doi.org/10.5194/bg-22-385-2025, 2025
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Marine hydrocarbon seeps typically host subsurface microorganisms capable of degrading methane before it is emitted to the water column. Here we describe a seep in Monterey Bay which virtually lacks known methanotrophs and where biological consumption of methane at depth is undetected. Our findings suggest that some seeps are missing this critical biofilter and that seeps may be a more significant source of methane to the water column than previously realized.
Thomas W. Garner, J. Andrew G. Cooper, Alan M. Smith, Gavin M. Rishworth, and Matt Forbes
Biogeosciences, 21, 4785–4807, https://doi.org/10.5194/bg-21-4785-2024, https://doi.org/10.5194/bg-21-4785-2024, 2024
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There is a diverse and often conflicting suite of terminologies, classifications, and nomenclature applicable to the study of terrestrial carbonate deposits and microbialites (deposits that wholly or primarily accrete as a result of microbial activity). We review existing schemes, identify duplication and redundancy, and present a new integrated approach applicable to tufa microbialites on rock coasts.
Catherine Brenan, Markus Kienast, Vittorio Maselli, Christopher K. Algar, Benjamin Misiuk, and Craig J. Brown
Biogeosciences, 21, 4569–4586, https://doi.org/10.5194/bg-21-4569-2024, https://doi.org/10.5194/bg-21-4569-2024, 2024
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Quantifying how much organic carbon is stored in seafloor sediments is key to assessing how human activities can accelerate the process of carbon storage at the seabed, an important consideration for climate change. This study uses seafloor sediment maps to model organic carbon content. Carbon estimates were 12 times higher when assuming the absence of detailed sediment maps, demonstrating that high-resolution seafloor mapping is critically important for improved estimates of organic carbon.
Sophie Hage, Megan L. Baker, Nathalie Babonneau, Guillaume Soulet, Bernard Dennielou, Ricardo Silva Jacinto, Robert G. Hilton, Valier Galy, François Baudin, Christophe Rabouille, Clément Vic, Sefa Sahin, Sanem Açikalin, and Peter J. Talling
Biogeosciences, 21, 4251–4272, https://doi.org/10.5194/bg-21-4251-2024, https://doi.org/10.5194/bg-21-4251-2024, 2024
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The land-to-ocean flux of particulate organic carbon (POC) is difficult to measure, inhibiting accurate modeling of the global carbon cycle. Here, we quantify the POC flux between one of the largest rivers on Earth (Congo) and the ocean. POC in the form of vegetation and soil is transported by episodic submarine avalanches in a 1000 km long canyon at up to 5 km water depth. The POC flux induced by avalanches is at least 3 times greater than that induced by the background flow related to tides.
Xuefeng Peng, David J. Yousavich, Annie Bourbonnais, Frank Wenzhöfer, Felix Janssen, Tina Treude, and David L. Valentine
Biogeosciences, 21, 3041–3052, https://doi.org/10.5194/bg-21-3041-2024, https://doi.org/10.5194/bg-21-3041-2024, 2024
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Biologically available (fixed) nitrogen (N) is a limiting nutrient for life in the ocean. Under low-oxygen conditions, fixed N is either removed via denitrification or retained via dissimilatory nitrate reduction to ammonia (DNRA). Using in situ incubations in the Santa Barbara Basin, which undergoes seasonal anoxia, we found that benthic denitrification was the dominant nitrate reduction process, while nitrate availability and organic carbon content control the relative importance of DNRA.
Nicole Burdanowitz, Gerhard Schmiedl, Birgit Gaye, Philipp M. Munz, and Hartmut Schulz
Biogeosciences, 21, 1477–1499, https://doi.org/10.5194/bg-21-1477-2024, https://doi.org/10.5194/bg-21-1477-2024, 2024
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We analyse benthic foraminifera, nitrogen isotopes and lipids in a sediment core from the Gulf of Oman to investigate how the oxygen minimum zone (OMZ) and bottom water (BW) oxygenation have reacted to climatic changes since 43 ka. The OMZ and BW deoxygenation was strong during the Holocene, but the OMZ was well ventilated during the LGM period. We found an unstable mode of oscillating oxygenation states, from moderately oxygenated in cold stadials to deoxygenated in warm interstadials in MIS 3.
Maxime Daviray, Emmanuelle Geslin, Nils Risgaard-Petersen, Vincent V. Scholz, Marie Fouet, and Edouard Metzger
Biogeosciences, 21, 911–928, https://doi.org/10.5194/bg-21-911-2024, https://doi.org/10.5194/bg-21-911-2024, 2024
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Coastal marine sediments are subject to major acidification processes because of climate change and human activities, but these processes can also result from biotic activity. We studied the sediment acidifcation effect on benthic calcareous foraminifera in intertidal mudflats. The strong pH decrease in sediments probably caused by cable bacteria led to calcareous test dissolution of living and dead foraminifera, threatening the test preservation and their robustness as environmental proxies.
Sebastian J. E. Krause, Jiarui Liu, David J. Yousavich, DeMarcus Robinson, David W. Hoyt, Qianhui Qin, Frank Wenzhöfer, Felix Janssen, David L. Valentine, and Tina Treude
Biogeosciences, 20, 4377–4390, https://doi.org/10.5194/bg-20-4377-2023, https://doi.org/10.5194/bg-20-4377-2023, 2023
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Methane is a potent greenhouse gas, and hence it is important to understand its sources and sinks in the environment. Here we present new data from organic-rich surface sediments below an oxygen minimum zone off the coast of California (Santa Barbara Basin) demonstrating the simultaneous microbial production and consumption of methane, which appears to be an important process preventing the build-up of methane in these sediments and the emission into the water column and atmosphere.
Sinan Xu, Bo Liu, Sandra Arndt, Sabine Kasten, and Zijun Wu
Biogeosciences, 20, 2251–2263, https://doi.org/10.5194/bg-20-2251-2023, https://doi.org/10.5194/bg-20-2251-2023, 2023
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We use a reactive continuum model based on a lognormal distribution (l-RCM) to inversely determine model parameters μ and σ at 123 sites across the global ocean. Our results show organic matter (OM) reactivity is more than 3 orders of magnitude higher in shelf than in abyssal regions. In addition, OM reactivity is higher than predicted in some specific regions, yet the l-RCM can still capture OM reactivity features in these regions.
Christiane Schmidt, Emmanuelle Geslin, Joan M. Bernhard, Charlotte LeKieffre, Mette Marianne Svenning, Helene Roberge, Magali Schweizer, and Giuliana Panieri
Biogeosciences, 19, 3897–3909, https://doi.org/10.5194/bg-19-3897-2022, https://doi.org/10.5194/bg-19-3897-2022, 2022
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This study is the first to show non-selective deposit feeding in the foraminifera Nonionella labradorica and the possible uptake of methanotrophic bacteria. We carried out a feeding experiment with a marine methanotroph to examine the ultrastructure of the cell and degradation vacuoles using transmission electron microscopy (TEM). The results revealed three putative methanotrophs at the outside of the cell/test, which could be taken up via non-targeted grazing in seeps or our experiment.
James P. J. Ward, Katharine R. Hendry, Sandra Arndt, Johan C. Faust, Felipe S. Freitas, Sian F. Henley, Jeffrey W. Krause, Christian März, Allyson C. Tessin, and Ruth L. Airs
Biogeosciences, 19, 3445–3467, https://doi.org/10.5194/bg-19-3445-2022, https://doi.org/10.5194/bg-19-3445-2022, 2022
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The seafloor plays an important role in the cycling of silicon (Si), a key nutrient that promotes marine primary productivity. In our model study, we disentangle major controls on the seafloor Si cycle to better anticipate the impacts of continued warming and sea ice melt in the Barents Sea. We uncover a coupling of the iron redox and Si cycles, dissolution of lithogenic silicates, and authigenic clay formation, comprising a Si sink that could have implications for the Arctic Ocean Si budget.
Hanni Vigderovich, Werner Eckert, Michal Elul, Maxim Rubin-Blum, Marcus Elvert, and Orit Sivan
Biogeosciences, 19, 2313–2331, https://doi.org/10.5194/bg-19-2313-2022, https://doi.org/10.5194/bg-19-2313-2022, 2022
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Anaerobic oxidation of methane (AOM) is one of the major processes limiting the release of the greenhouse gas methane from natural environments. Here we show that significant AOM exists in the methane zone of lake sediments in natural conditions and even after long-term (ca. 18 months) anaerobic slurry incubations with two stages. Methanogens were most likely responsible for oxidizing the methane, and humic substances and iron oxides are likely electron acceptors to support this oxidation.
Bjorn Sundby, Pierre Anschutz, Pascal Lecroart, and Alfonso Mucci
Biogeosciences, 19, 1421–1434, https://doi.org/10.5194/bg-19-1421-2022, https://doi.org/10.5194/bg-19-1421-2022, 2022
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A glacial–interglacial methane-fuelled redistribution of reactive phosphorus between the oceanic and sedimentary phosphorus reservoirs can occur in the ocean when falling sea level lowers the pressure on the seafloor, destabilizes methane hydrates, and triggers the dissolution of P-bearing iron oxides. The mass of phosphate potentially mobilizable from the sediment is similar to the size of the current oceanic reservoir. Hence, this process may play a major role in the marine phosphorus cycle.
Florian Lauryssen, Philippe Crombé, Tom Maris, Elliot Van Maldegem, Marijn Van de Broek, Stijn Temmerman, and Erik Smolders
Biogeosciences, 19, 763–776, https://doi.org/10.5194/bg-19-763-2022, https://doi.org/10.5194/bg-19-763-2022, 2022
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Surface waters in lowland regions have a poor surface water quality, mainly due to excess nutrients like phosphate. Therefore, we wanted to know the phosphate levels without humans, also called the pre-industrial background. Phosphate binds strongly to sediment particles, suspended in the river water. In this research we used sediments deposited by a river as an archive for surface water phosphate back to 1800 CE. Pre-industrial phosphate levels were estimated at one-third of the modern levels.
Gerard J. M. Versteegh, Andrea Koschinsky, Thomas Kuhn, Inken Preuss, and Sabine Kasten
Biogeosciences, 18, 4965–4984, https://doi.org/10.5194/bg-18-4965-2021, https://doi.org/10.5194/bg-18-4965-2021, 2021
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Oxygen penetrates sediments not only from the ocean bottom waters but also from the basement. The impact of the latter is poorly understood. We show that this basement oxygen has a clear impact on the nitrogen cycle, the redox state, and the distribution of manganese, nickel cobalt and organic matter in the sediments. This is important for (1) global biogeochemical cycles, (2) understanding sedimentary life and (3) the interpretation of the sediment record to reconstruct the past.
Astrid Hylén, Sebastiaan J. van de Velde, Mikhail Kononets, Mingyue Luo, Elin Almroth-Rosell, and Per O. J. Hall
Biogeosciences, 18, 2981–3004, https://doi.org/10.5194/bg-18-2981-2021, https://doi.org/10.5194/bg-18-2981-2021, 2021
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Sediments in oxygen-depleted ocean areas release high amounts of phosphorus, feeding algae that consume oxygen upon degradation, leading to further phosphorus release. Oxygenation is thought to trap phosphorus in the sediment and break this feedback. We studied the sediment phosphorus cycle in a previously anoxic area after an inflow of oxic water. Surprisingly, the sediment phosphorus release increased, showing that feedbacks between phosphorus release and oxygen depletion can be hard to break.
Sebastiaan J. van de Velde, Rebecca K. James, Ine Callebaut, Silvia Hidalgo-Martinez, and Filip J. R. Meysman
Biogeosciences, 18, 1451–1461, https://doi.org/10.5194/bg-18-1451-2021, https://doi.org/10.5194/bg-18-1451-2021, 2021
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Some 540 Myr ago, animal life evolved in the ocean. Previous research suggested that when these early animals started inhabiting the seafloor, they retained phosphorus in the seafloor, thereby limiting photosynthesis in the ocean. We studied salt marsh sediments with and without animals and found that their impact on phosphorus retention is limited, which implies that their impact on the global environment might have been less drastic than previously assumed.
Martijn Hermans, Nils Risgaard-Petersen, Filip J. R. Meysman, and Caroline P. Slomp
Biogeosciences, 17, 5919–5938, https://doi.org/10.5194/bg-17-5919-2020, https://doi.org/10.5194/bg-17-5919-2020, 2020
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This paper demonstrates that the recently discovered cable bacteria are capable of using a mineral, known as siderite, as a source for the formation of iron oxides. This work also demonstrates that the activity of cable bacteria can lead to a distinct subsurface layer in the sediment that can be used as a marker for their activity.
Torben Windirsch, Guido Grosse, Mathias Ulrich, Lutz Schirrmeister, Alexander N. Fedorov, Pavel Y. Konstantinov, Matthias Fuchs, Loeka L. Jongejans, Juliane Wolter, Thomas Opel, and Jens Strauss
Biogeosciences, 17, 3797–3814, https://doi.org/10.5194/bg-17-3797-2020, https://doi.org/10.5194/bg-17-3797-2020, 2020
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To extend the knowledge on circumpolar deep permafrost carbon storage, we examined two deep permafrost deposit types (Yedoma and alas) in central Yakutia. We found little but partially undecomposed organic carbon as a result of largely changing sedimentation processes. The carbon stock of the examined Yedoma deposits is about 50 % lower than the general Yedoma domain mean, implying a very hetererogeneous Yedoma composition, while the alas is approximately 80 % below the thermokarst deposit mean.
Anna Plass, Christian Schlosser, Stefan Sommer, Andrew W. Dale, Eric P. Achterberg, and Florian Scholz
Biogeosciences, 17, 3685–3704, https://doi.org/10.5194/bg-17-3685-2020, https://doi.org/10.5194/bg-17-3685-2020, 2020
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We compare the cycling of Fe and Cd in sulfidic sediments of the Peruvian oxygen minimum zone. Due to the contrasting solubility of their sulfide minerals, the sedimentary Fe release and Cd burial fluxes covary with spatial and temporal distributions of H2S. Depending on the solubility of their sulfide minerals, sedimentary trace metal fluxes will respond differently to ocean deoxygenation/expansion of H2S concentrations, which may change trace metal stoichiometry of upwelling water masses.
Biqing Zhu, Manuel Kübler, Melanie Ridoli, Daniel Breitenstein, and Martin H. Schroth
Biogeosciences, 17, 3613–3630, https://doi.org/10.5194/bg-17-3613-2020, https://doi.org/10.5194/bg-17-3613-2020, 2020
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We provide evidence that the greenhouse gas methane (CH4) is enclosed in calcareous glacier-forefield sediments across Switzerland. Geochemical analyses confirmed that this ancient CH4 has its origin in the calcareous parent bedrock. Our estimate of the total quantity of CH4 enclosed in sediments across Switzerland indicates a large CH4 mass (~105 t CH4). We produced evidence that CH4 is stable in its enclosed state, but additional experiments are needed to elucidate its long-term fate.
Matteo Puglini, Victor Brovkin, Pierre Regnier, and Sandra Arndt
Biogeosciences, 17, 3247–3275, https://doi.org/10.5194/bg-17-3247-2020, https://doi.org/10.5194/bg-17-3247-2020, 2020
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A reaction-transport model to assess the potential non-turbulent methane flux from the East Siberian Arctic sediments to water columns is applied here. We show that anaerobic oxidation of methane (AOM) is an efficient filter except for high values of sedimentation rate and advective flow, which enable considerable non-turbulent steady-state methane fluxes. Significant transient methane fluxes can also occur during the building-up phase of the AOM-performing biomass microbial community.
Kyle Delwiche, Junyao Gu, Harold Hemond, and Sarah P. Preheim
Biogeosciences, 17, 3135–3147, https://doi.org/10.5194/bg-17-3135-2020, https://doi.org/10.5194/bg-17-3135-2020, 2020
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In this study, we investigate whether bubbles transport sediments containing arsenic and cyanobacteria from the bottom to the top of a polluted lake. We measured arsenic and cyanobacteria from bubble traps in the lake and from an experimental bubble column in the laboratory. We found that bubble transport was not an important source of arsenic in the surface waters but that bubbles could transport enough cyanobacteria to the surface to exacerbate harmful algal blooms.
Nathaniel Kemnitz, William M. Berelson, Douglas E. Hammond, Laura Morine, Maria Figueroa, Timothy W. Lyons, Simon Scharf, Nick Rollins, Elizabeth Petsios, Sydnie Lemieux, and Tina Treude
Biogeosciences, 17, 2381–2396, https://doi.org/10.5194/bg-17-2381-2020, https://doi.org/10.5194/bg-17-2381-2020, 2020
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Our paper shows how sedimentation in a very low oxygen setting provides a unique record of environmental change. We look at the past 250 years through the filter of sediment accumulation via radioisotope dating and other physical and chemical analyses of these sediments. We conclude, remarkably, that there has been very little change in net sediment mass accumulation through the past 100–150 years, yet just prior to 1900 CE, sediments were accumulating at 50 %–70 % of today's rate.
Dario Fussmann, Avril Jean Elisabeth von Hoyningen-Huene, Andreas Reimer, Dominik Schneider, Hana Babková, Robert Peticzka, Andreas Maier, Gernot Arp, Rolf Daniel, and Patrick Meister
Biogeosciences, 17, 2085–2106, https://doi.org/10.5194/bg-17-2085-2020, https://doi.org/10.5194/bg-17-2085-2020, 2020
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Dolomite (CaMg(CO3)2) is supersaturated in many aquatic settings (e.g., seawater) on modern Earth but does not precipitate directly from the fluid, a fact known as the dolomite problem. The widely acknowledged concept of dolomite precipitation involves microbial extracellular polymeric substances (EPSs) and anoxic conditions as important drivers. In contrast, results from Lake Neusiedl support an alternative concept of Ca–Mg carbonate precipitation under aerobic and alkaline conditions.
Aurèle Vuillemin, André Friese, Richard Wirth, Jan A. Schuessler, Anja M. Schleicher, Helga Kemnitz, Andreas Lücke, Kohen W. Bauer, Sulung Nomosatryo, Friedhelm von Blanckenburg, Rachel Simister, Luis G. Ordoñez, Daniel Ariztegui, Cynthia Henny, James M. Russell, Satria Bijaksana, Hendrik Vogel, Sean A. Crowe, Jens Kallmeyer, and the Towuti Drilling Project
Science team
Biogeosciences, 17, 1955–1973, https://doi.org/10.5194/bg-17-1955-2020, https://doi.org/10.5194/bg-17-1955-2020, 2020
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Ferruginous lakes experience restricted primary production due to phosphorus trapping by ferric iron oxides under oxic conditions. We report the presence of large crystals of vivianite, a ferrous iron phosphate, in sediments from Lake Towuti, Indonesia. We address processes of P retention linked to diagenesis of iron phases. Vivianite crystals had light Fe2+ isotope signatures and contained mineral inclusions consistent with antecedent processes of microbial sulfate and iron reduction.
Sonja Geilert, Patricia Grasse, Kristin Doering, Klaus Wallmann, Claudia Ehlert, Florian Scholz, Martin Frank, Mark Schmidt, and Christian Hensen
Biogeosciences, 17, 1745–1763, https://doi.org/10.5194/bg-17-1745-2020, https://doi.org/10.5194/bg-17-1745-2020, 2020
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Marine silicate weathering is a key process of the marine silica cycle; however, its controlling processes are not well understood. In the Guaymas Basin, silicate weathering has been studied under markedly differing ambient conditions. Environmental settings like redox conditions or terrigenous input of reactive silicates appear to be major factors controlling marine silicate weathering. These factors need to be taken into account in future oceanic mass balances of Si and in modeling studies.
Jessica B. Volz, Laura Haffert, Matthias Haeckel, Andrea Koschinsky, and Sabine Kasten
Biogeosciences, 17, 1113–1131, https://doi.org/10.5194/bg-17-1113-2020, https://doi.org/10.5194/bg-17-1113-2020, 2020
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Potential future deep-sea mining of polymetallic nodules at the seafloor is expected to severely harm the marine environment. However, the consequences on deep-sea ecosystems are still poorly understood. This study on surface sediments from man-made disturbance tracks in the Pacific Ocean shows that due to the removal of the uppermost sediment layer and thereby the loss of organic matter, the geochemical system in the sediments is disturbed for millennia before reaching a new equilibrium.
Ralf Conrad, Melanie Klose, and Alex Enrich-Prast
Biogeosciences, 17, 1063–1069, https://doi.org/10.5194/bg-17-1063-2020, https://doi.org/10.5194/bg-17-1063-2020, 2020
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Lake sediments release the greenhouse gas CH4. Acetate is an important precursor. Although Amazonian lake sediments all contained acetate-consuming methanogens, measurement of the turnover of labeled acetate showed that some sediments converted acetate not to CH4 plus CO2, as expected, but only to CO2. Our results indicate the operation of acetate-oxidizing microorganisms couples the oxidation process to syntrophic methanogenic partners and/or to the reduction of organic compounds.
Jens Rassmann, Eryn M. Eitel, Bruno Lansard, Cécile Cathalot, Christophe Brandily, Martial Taillefert, and Christophe Rabouille
Biogeosciences, 17, 13–33, https://doi.org/10.5194/bg-17-13-2020, https://doi.org/10.5194/bg-17-13-2020, 2020
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In this paper, we use a large set of measurements made using in situ and lab techniques to elucidate the cause of dissolved inorganic carbon fluxes in sediments from the Rhône delta and its companion compound alkalinity, which carries the absorption capacity of coastal waters with respect to atmospheric CO2. We show that sediment processes (sulfate reduction, FeS precipitation and accumulation) are crucial in generating the alkalinity fluxes observed in this study by in situ incubation chambers.
Sophie A. L. Paul, Matthias Haeckel, Michael Bau, Rajina Bajracharya, and Andrea Koschinsky
Biogeosciences, 16, 4829–4849, https://doi.org/10.5194/bg-16-4829-2019, https://doi.org/10.5194/bg-16-4829-2019, 2019
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We studied the upper 10 m of deep-sea sediments, including pore water, in the Peru Basin to understand small-scale variability of trace metals. Our results show high spatial variability related to topographical variations, which in turn impact organic matter contents, degradation processes, and trace metal cycling. Another interesting finding was the influence of dissolving buried nodules on the surrounding sediment and trace metal cycling.
Sarah Paradis, Antonio Pusceddu, Pere Masqué, Pere Puig, Davide Moccia, Tommaso Russo, and Claudio Lo Iacono
Biogeosciences, 16, 4307–4320, https://doi.org/10.5194/bg-16-4307-2019, https://doi.org/10.5194/bg-16-4307-2019, 2019
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Chronic deep bottom trawling in the Gulf of Castellammare (SW Mediterranean) erodes large volumes of sediment, exposing over-century-old sediment depleted in organic matter. Nevertheless, the arrival of fresh and nutritious sediment recovers superficial organic matter in trawling grounds and leads to high turnover rates, partially and temporarily mitigating the impacts of bottom trawling. However, this deposition is ephemeral and it will be swiftly eroded by the passage of the next trawler.
Zhichao Zhou, Bo Liang, Li-Ying Wang, Jin-Feng Liu, Bo-Zhong Mu, Hojae Shim, and Ji-Dong Gu
Biogeosciences, 16, 4229–4241, https://doi.org/10.5194/bg-16-4229-2019, https://doi.org/10.5194/bg-16-4229-2019, 2019
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This study shows a core bacterial microbiome with a small proportion of shared operational taxonomic units of common sequences among all oil reservoirs. Dominant methanogenesis shifts from the hydrogenotrophic pathway in water phase to the acetoclastic pathway in the oil phase at high temperatures, but the opposite is true at low temperatures. There are also major functional metabolism differences between the two phases for amino acids, hydrocarbons, and carbohydrates.
Annika Fiskal, Longhui Deng, Anja Michel, Philip Eickenbusch, Xingguo Han, Lorenzo Lagostina, Rong Zhu, Michael Sander, Martin H. Schroth, Stefano M. Bernasconi, Nathalie Dubois, and Mark A. Lever
Biogeosciences, 16, 3725–3746, https://doi.org/10.5194/bg-16-3725-2019, https://doi.org/10.5194/bg-16-3725-2019, 2019
Hanni Vigderovich, Lewen Liang, Barak Herut, Fengping Wang, Eyal Wurgaft, Maxim Rubin-Blum, and Orit Sivan
Biogeosciences, 16, 3165–3181, https://doi.org/10.5194/bg-16-3165-2019, https://doi.org/10.5194/bg-16-3165-2019, 2019
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Microbial iron reduction participates in important biogeochemical cycles. In the last decade iron reduction has been observed in many aquatic sediments below its classical zone, in the methane production zone, suggesting a link between the two cycles. Here we present evidence for microbial iron reduction in the methanogenic depth of the oligotrophic SE Mediterranean continental shelf using mainly geochemical and microbial sedimentary profiles and suggest possible mechanisms for this process.
Haoyi Yao, Wei-Li Hong, Giuliana Panieri, Simone Sauer, Marta E. Torres, Moritz F. Lehmann, Friederike Gründger, and Helge Niemann
Biogeosciences, 16, 2221–2232, https://doi.org/10.5194/bg-16-2221-2019, https://doi.org/10.5194/bg-16-2221-2019, 2019
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How methane is transported in the sediment is important for the microbial community living on methane. Here we report an observation of a mini-fracture that facilitates the advective gas transport of methane in the sediment, compared to the diffusive fluid transport without a fracture. We found contrasting bio-geochemical signals in these different transport modes. This finding can help to fill the gap in the fracture network system in modulating methane dynamics in surface sediments.
Laura A. Casella, Sixin He, Erika Griesshaber, Lourdes Fernández-Díaz, Martina Greiner, Elizabeth M. Harper, Daniel J. Jackson, Andreas Ziegler, Vasileios Mavromatis, Martin Dietzel, Anton Eisenhauer, Sabino Veintemillas-Verdaguer, Uwe Brand, and Wolfgang W. Schmahl
Biogeosciences, 15, 7451–7484, https://doi.org/10.5194/bg-15-7451-2018, https://doi.org/10.5194/bg-15-7451-2018, 2018
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Biogenic carbonates record past environmental conditions. Fossil shell chemistry and microstructure change as metastable biogenic carbonates are replaced by inorganic calcite. Simulated diagenetic alteration at 175 °C of different shell microstructures showed that (nacreous) shell aragonite and calcite were partially replaced by coarse inorganic calcite crystals due to dissolution–reprecipitation reactions. EBSD maps allowed for qualitative assessment of the degree of diagenetic overprint.
Wytze K. Lenstra, Matthias Egger, Niels A. G. M. van Helmond, Emma Kritzberg, Daniel J. Conley, and Caroline P. Slomp
Biogeosciences, 15, 6979–6996, https://doi.org/10.5194/bg-15-6979-2018, https://doi.org/10.5194/bg-15-6979-2018, 2018
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We show that burial rates of phosphorus (P) in an estuary in the northern Baltic Sea are very high. We demonstrate that at high sedimentation rates, P retention in the sediment is related to the formation of vivianite. With a reactive transport model, we assess the sensitivity of sedimentary vivianite formation. We suggest that enrichments of iron and P in the sediment are linked to periods of enhanced riverine input of Fe, which subsequently strongly enhances P burial in coastal sediments.
Jiarui Liu, Gareth Izon, Jiasheng Wang, Gilad Antler, Zhou Wang, Jie Zhao, and Matthias Egger
Biogeosciences, 15, 6329–6348, https://doi.org/10.5194/bg-15-6329-2018, https://doi.org/10.5194/bg-15-6329-2018, 2018
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Our work provides new insights into the biogeochemical cycling of iron, methane and phosphorus. We found that vivianite, an iron-phosphate mineral, is pervasive in methane-rich sediments, suggesting that iron reduction at depth is coupled to phosphorus and methane cycling on a much greater spatial scale than previously assumed. Acting as an important burial mechanism for iron and phosphorus, vivianite authigenesis may be an under-considered process in both modern and ancient settings alike.
Marc A. Besseling, Ellen C. Hopmans, R. Christine Boschman, Jaap S. Sinninghe Damsté, and Laura Villanueva
Biogeosciences, 15, 4047–4064, https://doi.org/10.5194/bg-15-4047-2018, https://doi.org/10.5194/bg-15-4047-2018, 2018
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Benthic archaea comprise a significant part of the total prokaryotic biomass in marine sediments. Here, we compared the archaeal diversity and intact polar lipid (IPL) composition in both surface and subsurface sediments with different oxygen regimes in the Arabian Sea oxygen minimum zone. The oxygenated sediments were dominated by Thaumarchaeota and IPL-GDGT-0. The anoxic sediment contained highly diverse archaeal communities and high relative abundances of IPL-GDGT-1 to -4.
Georgina Robinson, Thomas MacTavish, Candida Savage, Gary S. Caldwell, Clifford L. W. Jones, Trevor Probyn, Bradley D. Eyre, and Selina M. Stead
Biogeosciences, 15, 1863–1878, https://doi.org/10.5194/bg-15-1863-2018, https://doi.org/10.5194/bg-15-1863-2018, 2018
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This study examined the effect of adding carbon to a sediment-based effluent treatment system to treat nitrogen-rich aquaculture waste. The research was conducted in incubation chambers to measure the exchange of gases and nutrients across the sediment–water interface and examine changes in the sediment microbial community. Adding carbon increased the amount of nitrogen retained in the treatment system, thereby reducing the levels of nitrogen needing to be discharged to the environment.
Daniele Brigolin, Christophe Rabouille, Bruno Bombled, Silvia Colla, Salvatrice Vizzini, Roberto Pastres, and Fabio Pranovi
Biogeosciences, 15, 1347–1366, https://doi.org/10.5194/bg-15-1347-2018, https://doi.org/10.5194/bg-15-1347-2018, 2018
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We present the result of a study carried out in the north-western Adriatic Sea by combining two different types of models with field sampling. A mussel farm was taken as a local source of perturbation to the natural flux of particulate organic carbon to the sediment. Differences in fluxes were primarily associated with mussel physiological conditions. Although restricted, these changes in particulate organic carbon fluxes induced visible effects on sediment biogeochemistry.
Volker Brüchert, Lisa Bröder, Joanna E. Sawicka, Tommaso Tesi, Samantha P. Joye, Xiaole Sun, Igor P. Semiletov, and Vladimir A. Samarkin
Biogeosciences, 15, 471–490, https://doi.org/10.5194/bg-15-471-2018, https://doi.org/10.5194/bg-15-471-2018, 2018
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We determined the aerobic and anaerobic degradation rates of land- and marine-derived organic material in East Siberian shelf sediment. Marine plankton-derived organic carbon was the main source for the oxic dissolved carbon dioxide production, whereas terrestrial organic material significantly contributed to the production of carbon dioxide under anoxic conditions. Our direct degradation rate measurements provide new constraints for the present-day Arctic marine carbon budget.
Jack J. Middelburg
Biogeosciences, 15, 413–427, https://doi.org/10.5194/bg-15-413-2018, https://doi.org/10.5194/bg-15-413-2018, 2018
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Organic carbon processing at the seafloor is studied by geologists to better understand the sedimentary record, by biogeochemists to quantify burial and respiration, by organic geochemists to elucidate compositional changes, and by ecologists to follow carbon transfers within food webs. These disciplinary approaches have their strengths and weaknesses. This award talk provides a synthesis, highlights the role of animals in sediment carbon processing and presents some new concepts.
Cited articles
Anderson, N. J., Dietz, R. D., and Engstrom, D. R.: Land-use change, not climate, controls organic carbon burial in lakes, P. Roy. Soc. B-Biol. Sci., 280, ARTN 20131278 https://doi.org/10.1098/rspb.2013.1278, 2013.
Anderson, N. J., Bennion, H., and Lotter, A. F.: Lake eutrophication and its implications for organic carbon sequestration in Europe, Global Change Biol., 20, 2741–2751, https://doi.org/10.1111/gcb.12584, 2014.
Andersson, G., Graneli, W., and Stenson, J.: The Influence of Animals on Phosphorus Cycling in Lake Ecosystems, Hydrobiologia, 170, 267–284, https://doi.org/10.1007/Bf00024909, 1988.
Armitage, P. D., Pardo, I., and Brown, A.: Temporal Constancy of Faunal Assemblages in Mesohabitats – Application to Management, Arch. Hydrobiol., 133, 367–387, 1995.
Aston, R.: Tubificids and water quality: a review, Environ. Pollut., 5, 1–10, 1973.
Baranov, V., Lewandowski, J., Romeijn, P., Singer, G., and Krause, S.: Effects of bioirrigation of non-biting midges (Diptera: Chironomidae) on lake sediment respiration, Sci. Rep.-UK, 6, ARTN 27329 https://doi.org/10.1038/srep27329, 2016.
Bastviken, D., Cole, J., Pace, M., and Tranvik, L.: Methane emissions from lakes: Dependence of lake characteristics, two regional assessments, and a global estimate, Global Biogeochem. Cy., 18, Artn Gb4009 https://doi.org/10.1029/2004gb002238, 2004.
Brinkhurst, R. O. and Chua, K. E.: Preliminary investigation of the exploitation of some potential nutritional resources by three sympatric tubificid oligochaetes, J. Fis. Res. Board Can, 26, 2659–2668, 1969.
Brinkhurst, R. O.: Evolution in the Annelida, Can. J. Zool., 60, 1043–1059, https://doi.org/10.1139/z82-145, 1982.
Brinkhurst, R. O.: On the role of tubificid oligochaetes in relation to fish disease with special reference to the Myxozoa, Annual Review of Fish Diseases, 6, 29–40, 1996.
Brodersen, K. P., Pedersen, O., Walker, I. R., and Jensen, M. T.: Respiration of midges (Diptera; Chironomidae) in British Columbian lakes: oxy-regulation, temperature and their role as palaeo-indicator, Freshwater Biol., 53, 593–602, 2008.
Brown, C. T., Hug, L. A., Thomas, B. C., Sharon, I., Castelle, C. J., Singh, A., Wilkins, M. J., Wrighton, K. C., Williams, K. H., and Banfield, J. F.: Unusual biology across a group comprising more than 15 % of domain Bacteria, Nature, 523, 208–211, 2015.
Brune, A., Frenzel, P., and Cypionka, H.: Life at the oxic–anoxic interface: microbial activities and adaptations, Fems Microbiol. Rev., 24, 691–710, 2000.
Bürgi, H. and Stadelmann, P.: Change of phytoplankton composition and biodiversity in Lake Sempach before and during restoration, Hydrobiologia, 469, 33–48, 2002.
Bussmann, I.: Methane release through resuspension of littoral sediment, Biogeochemistry, 74, 283–302, 2005.
Chapman, P. M., Farrell, M. A., and Brinkhurst, R. O.: Relative Tolerances of Selected Aquatic Oligochaetes to Individual Pollutants and Environmental-Factors, Aquat. Toxicol., 2, 47–67, https://doi.org/10.1016/0166-445x(82)90005-4, 1982.
Claesson, M. J., O'Sullivan, O., Wang, Q., Nikkila, J., Marchesi, J. R., Smidt, H., de Vos, W. M., Ross, R. P., and O'Toole, P. W.: Comparative Analysis of Pyrosequencing and a Phylogenetic Microarray for Exploring Microbial Community Structures in the Human Distal Intestine, PloS ONE, 4, e6669, https://doi.org/10.1371/journal.pone.0006669, 2009.
Correa, C. C. and Ballard, J.: Wolbachia associations with insects: winning or losing against a master manipulator, Front. Ecol. Evol., 3, 153, https://doi.org/10.3389/fevo.2015.00153, 2016.
Davis, R. B.: Tubificids alter profiles of redox potential and pH in profundal lake sediment 1, Limnol. Oceanogr., 19, 342–346, 1974.
de Valk, S., Khadem, A. F., Foreman, C. M., van Lier, J. B., and de Kreuk, M. K.: Physical and biochemical changes in sludge upon Tubifex tubifex predation, Environ. Technol., 38, 1524–1538, 2017.
Dean, W. E. and Gorham, E.: Magnitude and significance of carbon burial in lakes, reservoirs, and peatlands, Geology, 26, 535–538, 1998.
Deines, P. and Grey, J.: Site-specific methane production and subsequent midge mediation within Esthwaite Water, UK, Arch. Hydrobiol., 167, 317–334, https://doi.org/10.1127/0003-9136/2006/0167-0317, 2006.
Deines, P., Bodelier, P. L. E., and Eller, G.: Methane-derived carbon flows through methane-oxidizing bacteria to higher trophic levels in aquatic systems, Environ. Microbiol., 9, 1126–1134, https://doi.org/10.1111/j.1462-2920.2006.01235.x, 2007a.
Deines, P., Grey, J., Richnow, H. H., and Eller, G.: Linking larval chironomids to methane: seasonal variation of the microbial methane cycle and chironomid delta C-13, Aquat. Microb. Ecol., 46, 273–282, https://doi.org/10.3354/ame046273, 2007b.
DelSontro, T., Boutet, L., St-Pierre, A., del Giorgio, P. A., and Prairie, Y. T.: Methane ebullition and diffusion from northern ponds and lakes regulated by the interaction between temperature and system productivity, Limnol Oceanogr, 61, S62-S77, https://doi.org/10.1002/lno.10335, 2016.
Edgar, R. C. J. B.: UNOISE2: improved error-correction for Illumina 16S and ITS amplicon sequencing, bioRxiv, https://doi.org/10.1101/081257, 2016.
Einsele, G., Yan, J. P., and Hinderer, M.: Atmospheric carbon burial in modern lake basins and its significance for the global carbon budget, Global Planet. Change, 30, 167–195, https://doi.org/10.1016/S0921-8181(01)00105-9, 2001.
Eller, G., Deines, P., Grey, J., Richnow, H. H., and Kruger, M.: Methane
cycling in lake sediments and its influence on chironomid larval partial
derivative C-13, Fems Microbiol. Ecol., 54, 339–350,
https://doi.org/10.1016/j.femsec.2005.04.006, 2005.
Eller, G., Deines, P., and Kruger, M.: Possible sources of methane-derived carbon for chironomid larvae, Aquat. Microbiol. Ecol., 46, 283–293, https://doi.org/10.3354/ame046283, 2007.
Falls, E. Q.: A survey of fresh-water oligochaeta and their commensal ciliates from the Richmond, Virginia area, Master's Theses, Paper 343, 1972.
Figueiredo-Barros, M. P., Caliman, A., Leal, J. J., Bozelli, R. L., Farjalla, V. F., and Esteves, F. A.: Benthic bioturbator enhances CH4 fluxes among aquatic compartments and atmosphere in experimental microcosms, Can. J. Fish. Aquat. Sci., 66, 1649–1657, 2009.
Fisher, J., Lick, W., McCall, P., and Robbins, J.: Vertical mixing of lake sediments by tubificid oligochaetes, J. Geophys. Res.-Oceans, 85, 3997–4006, 1980.
Fiskal, A., Deng, L., Michel, A., Eickenbusch, P., Han, X., Lagostina, L., Zhu, R., Sander, M., Schroth, M. H., Bernasconi, S. M., Dubois, N., and Lever, M. A.: Effects of eutrophication on sedimentary organic carbon cycling in five temperate lakes, Biogeosciences, 16, 3725–3746, https://doi.org/10.5194/bg-16-3725-2019, 2019.
Fry, B. and Sherr, E. B.: δ13C measurements as indicators of carbon flow in marine and freshwater ecosystems, in: Stable isotopes in ecological research, edited by: Rundel, P. W., Ehleringer, J. R., and Nagy K. A., vol 68, Springer, New York, NY, https://doi.org/10.1007/978-1-4612-3498-2_12, 1989.
Gautreau, E., Volatier, L., Nogaro, G., Gouze, E., and Mermillod-Blondin, F.: The influence of bioturbation and water column oxygenation on nutrient recycling in reservoir sediments, Hydrobiologia, 847, 1027–1040, https://doi.org/10.1007/s10750-019-04166-0, 2020.
Gentzel, T., Hershey, A. E., Rublee, P. A., and Whalen, S. C.: Net sediment production of methane, distribution of methanogens and methane-oxidizing bacteria, and utilization of methane-derived carbon in an arctic lake, Inland Waters, 2, 77–88, https://doi.org/10.5268/Iw-2.2.416, 2012.
Grey, J., Kelly, A., Ward, S., Sommerwerk, N., and Jones, R. I.: Seasonal changes in the stable isotope values of lake-dwelling chironomid larvae in relation to feeding and life cycle variability, Freshwater Biol., 49, 681–689, https://doi.org/10.1111/j.1365-2427.2004.01217.x, 2004.
Grimont, F. and Grimont, P.: The genus Serratia, in: Dworkin, M. et al., The Prokaryotes, Vol. 6, Springer Science and Business Media, New York, NY, 2006.
Hamburger, K., Lindegaard, C., Dall, P. C., and Nilson, I.: Strategies of respiration and glycogen metabolism in oligochaetes and chironomids from habitats exposed to different oxygen deficits, SIL Proceedings, 1922–2010, 26, 2070–2075, https://doi.org/10.1080/03680770.1995.11901107, 1998.
Han, X. G., Schubert, C. J., Fiskal, A., Dubois, N., and Lever, M. A.: Eutrophication as a driver of microbial community structure in lake sediments, Environ. Microbiol., 22, 3446–3462, 2020.
Heathcote, A. J. and Downing, J. A.: Impacts of Eutrophication on Carbon Burial in Freshwater Lakes in an Intensively Agricultural Landscape, Ecosystems, 15, 60–70, https://doi.org/10.1007/s10021-011-9488-9, 2012.
Hershey, A. E., Beaty, S., Fortino, K., Kelly, S., Keyse, M., Luecke, C., O'Brien, W. J., and Whalen, S. C.: Stable isotope signatures of benthic invertebrates in arctic lakes indicate limited coupling to pelagic production, Limnol. Oceanogr., 51, 177–188, https://doi.org/10.4319/lo.2006.51.1.0177, 2006.
Hipp, E., Mustafa, T., and Hoffmann, K.: Integumentary uptake of volatile fatty acids by the freshwater oligochaete Tubifex, Naturwissenschaften, 72, 148–149, 1985.
Hipp, E., Bickel, U., Mustafa, T., and Hoffmann, K. H.: Integumentary uptake of acetate and propionate (VFA) by Tubifex sp, a freshwater oligochaete. I I. Role of VFA as nutritional resources and effects of anaerobiosis, J. Exp. Zool., 240, 299–308, 1986.
Holgerson, M. A. and Raymond, P. A.: Large contribution to inland water CO2 and CH4 emissions from very small ponds, Nat. Geosci., 9, 222-U150, https://doi.org/10.1038/Ngeo2654, 2016.
Holker, F., Vanni, M. J., Kuiper, J. J., Meile, C., Grossart, H. P., Stief, P., Adrian, R., Lorke, A., Dellwig, O., Brand, A., Hupfer, M., Mooij, W. M., Nutzmann, G., and Lewandowski, J.: Tube-dwelling invertebrates: tiny ecosystem engineers have large effects in lake ecosystems, Ecol. Monogr., 85, 333–351, https://doi.org/10.1890/14-1160.1, 2015.
Hollander, D. J., Mckenzie, J. A., and Lotenhaven, H.: A 200-Year Sedimentary Record of Progressive Eutrophication in Lake Greifen (Switzerland) – Implications for the Origin of Organic-Carbon-Rich Sediments, Geology, 20, 825–828, https://doi.org/10.1130/0091-7613(1992)020<0825:Aysrop>2.3.Co;2, 1992.
Hupfer, M. and Lewandowski, J.: Oxygen Controls the Phosphorus Release from Lake Sediments – a Long-Lasting Paradigm in Limnology, Int. Rev. Hydrobiol., 93, 415–432, https://doi.org/10.1002/iroh.200711054, 2008.
Hupfer, M., Jordan, S., Herzog, C., Ebeling, C., Ladwig, R., Rothe, M., and Lewandowski, J.: Chironomid larvae enhance phosphorus burial in lake sediments: Insights from long-term and short-term experiments, Sci. Total Environ., 663, 254–264, https://doi.org/10.1016/j.scitotenv.2019.01.274, 2019.
Huys, G.: The Family Aeromonadaceae, The Prokaryotes-Gammaproteobacteria Springer-Verlag, Berlin Heidelberg, 27–57, 2014.
Jeppesen, E., Søndergaard, M., Sortkjær, O., Mortensen, E., and Kristensen, P.: Interactions between phytoplankton, zooplankton and fish in a shallow, hypertrophic lake: a study of phytoplankton collapses in Lake Søbygård, Denmark, in: Trophic Relationships in Inland Waters, Springer, Dordrecht, 149–164, 1990.
Jeppesen, E., Jensen, J. P., Sondergaard, M., Lauridsen, T., Moller, F. P., and Sandby, K.: Changes in nitrogen retention in shallow eutrophic lakes following a decline in density of cyprinids, Arch. Hydrobiol., 142, 129–151, 1998.
Jeppesen, E., Jensen, J. P., Søndergaard, M., and Lauridsen, T.: Trophic dynamics in turbid and clearwater lakes with special emphasis on the role of zooplankton for water clarity, in: Shallow lakes' 98, Springer, Dordrecht, 217–231, 1999.
Jones, R. I., Carter, C. E., Kelly, A., Ward, S., Kelly, D. J., and Grey, J.: Widespread Contribution of Methane-Cycle Bacteria to the Diets of Lake Profundal Chironomid Larvae, Ecology, 89, 857–864, https://doi.org/10.1890/06-2010.1, 2008.
Jones, R. I. and Grey, J.: Biogenic methane in freshwater food webs, Freshwater Biol., 56, 213–229, https://doi.org/10.1111/j.1365-2427.2010.02494.x, 2011.
Kajan, R. and Frenzel, P.: The effect of chironomid larvae on production, oxidation and fluxes of methane in a flooded rice soil, Fems Microbiol. Ecology, 28, 121–129, 1999.
Kankaala, P., Taipale, S., Grey, J., Sonninen, E., Arvola, L., and Jones, R. I.: Experimental delta C-13 evidence for a contribution of methane to pelagic food webs in lakes, Limnol. Oceanogr., 51, 2821–2827, https://doi.org/10.4319/lo.2006.51.6.2821, 2006.
Kankaala, P., Taipale, S., Nykanen, H., and Jones, R. I.: Oxidation, efflux, and isotopic fractionation of methane during autumnal turnover in a polyhumic, boreal lake, J. Geophys. Res.-Biogeo., 112, Artn G02003 https://doi.org/10.1029/2006jg000336, 2007.
Katsev, S., Tsandev, I., L'Heureux, I., and Rancourt, D. G.: Factors controlling long-term phosphorus efflux from lake sediments: Exploratory reactive-transport modeling, Chem. Geol., 234, 127–147, https://doi.org/10.1016/j.chemgeo.2006.05.001, 2006.
Kelly, A., Jones, R., and Grey, J.: Stable isotope analysis provides fresh insights into dietary separation between Chironomus anthracinus and C. plumosus, J. N. Am. Benthol. Soc., 23, 287–296, 2004.
Kiyashko, S. I., Narita, T., and Wada, E.: Contribution of methanotrophs to freshwater macroinvertebrates: evidence from stable isotope ratios, Aquat. Microb. Ecol., 24, 203–207, https://doi.org/10.3354/ame024203, 2001.
Krezoski, J. R., Mozley, S. C., and Rohhins, J. A.: Influence of benthic macroinvertebrates on mixing of profundal sediments in southeastern Lake Huron 1, Limnol. Oceanogr., 23, 1011–1016, 1978.
Kristensen, E., Penha-Lopes, G., Delefosse, M., Valdemarsen, T., Quintana, C. O., and Banta, G. T.: What is bioturbation? The need for a precise definition for fauna in aquatic sciences, Mar. Ecol. Prog. Ser., 446, 285–302, 2012.
Kruger, M., Eller, G., Conrad, R., and Frenzel, P.: Seasonal variation in pathways of CH4 production and in CH4 oxidation in rice fields determined by stable carbon isotopes and specific inhibitors, Global Change Biol., 8, 265–280, https://doi.org/10.1046/j.1365-2486.2002.00476.x, 2002.
Lagauzère, S., Pischedda, L., Cuny, P., Gilbert, F., Stora, G., and Bonzom, J.-M.: Influence of Chironomus riparius (Diptera, Chironomidae) and Tubifex tubifex (Annelida, Oligochaeta) on oxygen uptake by sediments. Consequences of uranium contamination, Environ. Pollut., 157, 1234–1242, 2009.
Lang, C.: Eutrophication of Lake Geneva indicated by the oligochaete communities of the profundal, Hydrobiologia, 126, 237–243, 1985.
Lang, C.: Quantitative relationships between oligochaete communities and phosphorus concentrations in lakes, Freshwater Biol., 24, 327–334, 1990.
Lang, S. Q., Bernasconi, S. M., and Früh-Green, G. L.: Stable isotope analysis of organic carbon in small (µg C) samples and dissolved organic matter using a GasBench preparation device, Rapid Commun. Mass. Sp., 26, 9–16, 2012.
Lever, M. A., Torti, A., Eickenbusch, P., Michaud, A. B., Santl-Temkiv, T., and Jorgensen, B. B.: A modular method for the extraction of DNA and RNA, and the separation of DNA pools from diverse environmental sample types, Front. Microbiol., 6, UNSP 476 https://doi.org/10.3389/fmicb.2015.00476, 2015.
Lewandowski, J., Laskov, C., and Hupfer, M.: The relationship between Chironomus plumosus burrows and the spatial distribution of pore-water phosphate, iron and ammonium in lake sediments, Freshwater Biol., 52, 331–343, https://doi.org/10.1111/j.1365-2427.2006.01702.x, 2007.
Maerki, M., Muller, B., Dinkel, C., and Wehrli, B.: Mineralization pathways in lake sediments with different oxygen and organic carbon supply, Limnol. Oceanogr., 54, 428–438, https://doi.org/10.4319/lo.2009.54.2.0428, 2009.
Magoč, T. and Salzberg, S. L. J. B.: FLASH: fast length adjustment of short reads to improve genome assemblies, Bioinformatics, 27, 2957–2963, 2011.
Martin, P., Martinez-Ansemil, E., Pinder, A., Timm, T., and Wetzel, M. J.: Global diversity of oligochaetous clitellates (”Oligochaeta”; Clitellata) in freshwater, Hydrobiologia, 595, 117–127, https://doi.org/10.1007/s10750-007-9009-1, 2008.
Matisoff, G., Wang, X. S., and McCall, P. L.: Biological redistribution of lake sediments by tubificid oligochaetes: Branchiura sowerbyi and Limnodrilus hoffmeisteri/Tubifex tubifex, J. Great Lakes Res., 25, 205–219, https://doi.org/10.1016/S0380-1330(99)70729-X, 1999.
McCall, P. L. and Tevesz, M. J. S.: The Effects of Benthos on Physical Properties of Freshwater Sediments, in: Animal-Sediment Relations: The Biogenic Alteration of Sediments, edited by: McCall, P. L. and Tevesz, M. J. S., Topics in Geobiology, Springer US, Boston, MA, 105–176, 1982.
Mendonça, R., Müller, R. A., Clow, D., Verpoorter, C., Raymond, P., Tranvik, L. J., and Sobek, S.: Organic carbon burial in global lakes and reservoirs, Nat. Commun., 8, 1–7, 2017.
Mermillod-Blondin, F., Nogaro, G., Datry, T., Malard, F., and Gibert, J.: Do tubificid worms influence the fate of organic matter and pollutants in stormwater sediments?, Environ. Pollut., 134, 57–69, https://doi.org/10.1016/j.envpol.2004.07.024, 2005.
Meysman, F. J. R., Middelburg, J. J., and Heip, C. H. R.: Bioturbation: a fresh look at Darwin's last idea, Trends Ecol. Evol., 21, 688–695, https://doi.org/10.1016/j.tree.2006.08.002, 2006.
Milbrink, G.: An improved environmental index based on the relative abundance of oligochaete species, Hydrobiologia, 102, 89–97, 1983.
Mousavi, S. K.: Boreal chironomid communities and their relations to environmental factors – the impact of lake depth, size and acidity, Boreal Environ. Res., 7, 63–75, 2002.
Nelson, W. C. and Stegen, J. C.: The reduced genomes of Parcubacteria (OD1) contain signatures of a symbiotic lifestyle, Front. Microbiol., 6, 713, https://doi.org/10.3389/fmicb.2015.00713, 2015.
Nicacio, G. and Juen, L.: Chironomids as indicators in freshwater ecosystems: an assessment of the literature, Insect Conserv. Diver., 8, 393–403, 2015.
Olsen, I.: The Family Fusobacteriaceae, in: The Prokaryotes: Firmicutes and Tenericutes, edited by: Rosenberg, E., DeLong, E. F., Lory, S., Stackebrandt, E., and Thompson, F., Springer, Berlin, Heidelberg, 109–132, 2014.
Panis, L. I., Goddeeris, B., and Verheyen, R.: On the relationship between vertical microdistribution and adaptations to oxygen stress in littoral Chironomidae (Diptera), Hydrobiologia, 318, 61–67, 1996.
Pelegri, S. P., Nielsen, L. P., and Blackburn, T. H.: Denitrification in Estuarine Sediment Stimulated by the Irrigation Activity of the Amphipod Corophium-Volutator, Mar. Ecol. Prog. Ser., 105, 285–290, https://doi.org/10.3354/meps105285, 1994.
Pinder, L.: The habitats of chironomid larvae, in: The Chironomidae, edited by: Armitage, P. D., Cranston, P. S., and Pinder, L. C. V., Springer, Dordrecht, 107–135, https://doi.org/10.1007/978-94-011-0715-0_6, 1995.
Plante, C. J., Jumars, P. A., and Baross, J. A.: Rapid bacterial growth in the hindgut of a marine deposit feeder, Microb. Ecol., 18, 29–44, 1989.
Premke, K., Karlsson, J., Steger, K., Gudasz, C., von Wachenfeldt, E., and Tranvik, L. J.: Stable isotope analysis of benthic fauna and their food sources in boreal lakes, J. N. Am. Benthol. Soc., 29, 1339–1348, https://doi.org/10.1899/10-002.1, 2010.
Raymond, P. A., Hartmann, J., Lauerwald, R., Sobek, S., McDonald, C., Hoover, M., Butman, D., Striegl, R., Mayorga, E., Humborg, C., Kortelainen, P., Durr, H., Meybeck, M., Ciais, P., and Guth, P.: Global carbon dioxide emissions from inland waters, Nature, 503, 355–359, https://doi.org/10.1038/nature12760, 2013.
Reuss, N. S., Hamerlik, L., Velle, G., Michelsen, A., Pedersen, O., and Brodersen, K. P.: Stable isotopes reveal that chironomids occupy several trophic levels within West Greenland lakes: Implications for food web studies, Limnol. Oceanogr., 58, 1023–1034, https://doi.org/10.4319/lo.2013.58.3.1023, 2013.
Robbins, J. A., Krezoski, J. R., and Mozley, S.: Radioactivity in sediments of the Great Lakes: post-depositional redistribution by deposit-feeding organisms, Earth Planet. Sc. Lett., 36, 325–333, 1977.
Roskosch, A., Hette, N., Hupfer, M., and Lewandowski, J.: Alteration of Chironomus plumosus ventilation activity and bioirrigation-mediated benthic fluxes by changes in temperature, oxygen concentration, and seasonal variations, Freshw. Sci., 31, 269–281, https://doi.org/10.1899/11-043.1, 2012.
Sabri, A., Leroy, P., Haubruge, E., Hance, T., Frere, I., Destain, J., and Thonart, P.: Isolation, pure culture and characterization of Serratia symbiotica sp. nov., the R-type of secondary endosymbiont of the black bean aphid Aphis fabae, Int. J. Syst. Evol. Micr., 61, 2081–2088, 2011.
Saether, O. A.: Chironomid communities as water quality indicators, Ecography, 2, 65–74, 1979.
Saether, O. A.: The influence of eutrophication on deep lake benthic invertebrate communities, Prog. Water Technol., 12, 161–180,
https://doi.org/10.1016/B978-0-08-026024-2.50014-6, 1980.
Santos, H. A. and Massard, C. L.: The Family Holosporaceae, The Prokaryotes: Alphaproteobacteria and Betaproteobacteria, Springer, Berlin, Heidelberg, 237–246, 2014.
Scheffer, M., Hosper, S. H., Meijer, M. L., Moss, B., and Jeppesen, E.: Alternative Equilibria in Shallow Lakes, Trends Ecol. Evol., 8, 275–279, https://doi.org/10.1016/0169-5347(93)90254-M, 1993.
Schmieder, R. and Edwards, R. J. B.: Quality control and preprocessing of metagenomic datasets, Bioinformatics, 27, 863–864, 2011.
Sedlmeier, U. A. and Hoffmann, K. H.: Integumentary uptake of short-chain carboxylic acids by two freshwater oligochaetes, Tubifex tubifex and Lumbriculus variegatus: Specificity of uptake and characterization of transport carrier, J. Exp. Zool., 250, 128–134, 1989.
Senderovich, Y., Gershtein, Y., Halewa, E., and Halpern, M.: Vibrio cholerae and Aeromonas: do they share a mutual host?, ISME J., 2, 276–283, 2008.
Seuß, J., Hipp, E., and Hoffmann, K.: Oxygen consumption, glycogen content and the accumulation of metabolites in Tubifex during aerobic-anaerobic shift and under progressing anoxia, Comp. Biochem. Phys. A, 75, 557–562, 1983.
South, A.: Rworldmap: A New R package for Mapping Global Data, R J, 3, 35–43, 2011.
Stackebrandt, E., Lang, E., Cousin, S., Päuker, O., Brambilla, E., Kroppenstedt, R., and Lünsdorf, H.: Deefgea rivuli gen. nov., sp. nov., a member of the class Betaproteobacteria, Int. J. Syst. Evol. Micr., 57, 639–645, 2007.
Steinsberger, T., Schmid, M., Wüest, A., Schwefel, R., Wehrli, B., and Müller, B.: Organic carbon mass accumulation rate regulates the flux of reduced substances from the sediments of deep lakes, Biogeosciences, 14, 3275–3285, https://doi.org/10.5194/bg-14-3275-2017, 2017.
Stief, P., Nazarova, L., and de Beer, D.: Chimney construction by Chironomus riparius larvae in response to hypoxia: microbial implications for freshwater sediments, J. N. Am. Benthol. Soc., 24, 858–871, 2005.
Stief, P., Poulsen, M., Nielsen, L. P., Brix, H., and Schramm, A.: Nitrous oxide emission by aquatic macrofauna, P. Natl. Acad. Sci. USA, 106, 4296–4300, https://doi.org/10.1073/pnas.0808228106, 2009.
Stief, P.: Stimulation of microbial nitrogen cycling in aquatic ecosystems by benthic macrofauna: mechanisms and environmental implications, Biogeosciences, 10, 7829–7846, https://doi.org/10.5194/bg-10-7829-2013, 2013.
Svensson, J. M., Enrich-Prast, A., and Leonardson, L.: Nitrification and denitrification in a eutrophic lake sediment bioturbated by oligochaetes, Aquat. Microb. Ecol., 23, 177–186, 2001.
Tanner, A. and Paster, B. J.: The genus Wolinella, in: The Prokaryotes, Springer, New York, NY, 3512–3523, 1992.
Team, R. C.: R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. 2012, http://www.R-project.org (last access: 20 February 2018), 2018.
Teixeira, L. and Merquior, V.: The family Moraxellaceae, in: The prokaryotes: Gammaproteobacteria, Springer, Berlin Heidelberg, 443–476, 2014.
Templeton, A. S., Chu, K. H., Alvarez-Cohen, L., and Conrad, M. E.: Variable carbon isotope fractionation expressed by aerobic CH4-oxidizing bacteria, Geochim. Cosmochim. Ac., 70, 1739–1752, https://doi.org/10.1016/j.gca.2005.12.002, 2006.
Timm, T.: Tubifex tubifex (Müller, 1774)(Oligochaeta, Tubificidae) in the profundal of Estonian lakes, Int. Rev. Ges. Hydrobio., 81, 589–596, 1996.
Verdonschot, P. F.: Macrofaunal community types in ponds and small lakes (Overijssel, the Netherlands), Hydrobiologia, 232, 111–132, 1992.
Vollenweider, R. and Kerekes, J.: Eutrophication of Waters: Monitoring, Assessment and Control. OECD, Paris, 154, ISBN 92-64-12298-2, 1982.
Wang, Y. and Qian, P.-Y.: Conservative Fragments in Bacterial 16S rRNA Genes and Primer Design for 16S Ribosomal DNA Amplicons in Metagenomic Studies, PLoS ONE, 4, e7401, https://doi.org/10.1371/journal.pone.0007401, 2009.
Wexler, H.: The genus Bacteroides, in: The Prokaryotes, edited by: Rosenberg, E., DeLong, E. F., Lory, S., Stackebrandt, E., and Thompson, F., Springer, Berlin, Heidelberg, https://doi.org/10.1007/978-3-642-38954-2_129, 2014.
White, D. S. and Miller, M. F.: Benthic invertebrate activity in lakes: linking present and historical bioturbation patterns, Aquat. Biol., 2, 269–277, https://doi.org/10.3354/ab00056, 2008.
Wrighton, K. C., Thomas, B. C., Sharon, I., Miller, C. S., Castelle, C. J., VerBerkmoes, N. C., Wilkins, M. J., Hettich, R. L., Lipton, M. S., and Williams, K. H.: Fermentation, hydrogen, and sulfur metabolism in multiple uncultivated bacterial phyla, Science, 337, 1661–1665, 2012.
Yasuno, N., Shikano, S., Shimada, T., Shindo, K., and Kikuchi, E.: Comparison of the exploitation of methane-derived carbon by tubicolous and non-tubicoloUs chironomid larvae in a temperate eutrophic lake, Limnology, 14, 239–246, 2013.
Short summary
Microbially produced methane can serve as a carbon source for freshwater macrofauna most likely through grazing on methane-oxidizing bacteria. This study investigates the contributions of different carbon sources to macrofaunal biomass. Our data suggest that the average contribution of methane-derived carbon is similar between different fauna but overall remains low. This is further supported by the low abundance of methane-cycling microorganisms.
Microbially produced methane can serve as a carbon source for freshwater macrofauna most likely...
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