Articles | Volume 18, issue 12
https://doi.org/10.5194/bg-18-3733-2021
© 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-18-3733-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Jun 2021
Research article |
| 22 Jun 2021
| 22 Jun 2021
Hydrographic fronts shape productivity, nitrogen fixation, and microbial community composition in the southern Indian Ocean and the Southern Ocean
Alfred Wegener Institute for Polar and Marine Science, Bremerhaven,
Germany
Department of Life Sciences and Chemistry, Jacobs University, Bremen,
Germany
Eric J. Raes
Ocean Frontier Institute and Department of Oceanography, Dalhousie
University, Halifax, NS, Canada
CSIRO Oceans and Atmosphere, Hobart, Tasmania, Australia
Alfred Wegener Institute for Polar and Marine Science, Bremerhaven,
Germany
Pier Luigi Buttigieg
Helmholtz Metadata Collaboration, GEOMAR, Kiel, Germany
Claire Lo Monaco
LOCEAN-IPSL, Sorbonne Université, Paris, France
Alfred Wegener Institute for Polar and Marine Science, Bremerhaven,
Germany
Helmholtz Institute for Functional Marine Biodiversity, Oldenburg,
Germany
Anya M. Waite
Ocean Frontier Institute and Department of Oceanography, Dalhousie
University, Halifax, NS, Canada
Alfred Wegener Institute for Polar and Marine Science, Bremerhaven,
Germany
Related authors
Wilken-Jon von Appen, Volker H. Strass, Astrid Bracher, Hongyan Xi, Cora Hörstmann, Morten H. Iversen, and Anya M. Waite
Ocean Sci., 16, 253–270, https://doi.org/10.5194/os-16-253-2020, https://doi.org/10.5194/os-16-253-2020, 2020
Short summary
Short summary
Nutrient-rich water is moved to the surface near continental margins. Then it forms rich but difficult to observe spatial structures of physical and biological/biogeochemical properties. Here we present a high resolution (2.5 km) section through such features obtained in May 2018 with a vehicle towed behind a ship. Considering that such interactions of physics and biology are common in the ocean, they likely strongly influence the productivity of such systems and their role in CO2 uptake.
Bjorn Stevens, Stefan Adami, Tariq Ali, Hartwig Anzt, Zafer Aslan, Sabine Attinger, Jaana Bäck, Johanna Baehr, Peter Bauer, Natacha Bernier, Bob Bishop, Hendryk Bockelmann, Sandrine Bony, Guy Brasseur, David N. Bresch, Sean Breyer, Gilbert Brunet, Pier Luigi Buttigieg, Junji Cao, Christelle Castet, Yafang Cheng, Ayantika Dey Choudhury, Deborah Coen, Susanne Crewell, Atish Dabholkar, Qing Dai, Francisco Doblas-Reyes, Dale Durran, Ayoub El Gaidi, Charlie Ewen, Eleftheria Exarchou, Veronika Eyring, Florencia Falkinhoff, David Farrell, Piers M. Forster, Ariane Frassoni, Claudia Frauen, Oliver Fuhrer, Shahzad Gani, Edwin Gerber, Debra Goldfarb, Jens Grieger, Nicolas Gruber, Wilco Hazeleger, Rolf Herken, Chris Hewitt, Torsten Hoefler, Huang-Hsiung Hsu, Daniela Jacob, Alexandra Jahn, Christian Jakob, Thomas Jung, Christopher Kadow, In-Sik Kang, Sarah Kang, Karthik Kashinath, Katharina Kleinen-von Königslöw, Daniel Klocke, Uta Kloenne, Milan Klöwer, Chihiro Kodama, Stefan Kollet, Tobias Kölling, Jenni Kontkanen, Steve Kopp, Michal Koran, Markku Kulmala, Hanna Lappalainen, Fakhria Latifi, Bryan Lawrence, June Yi Lee, Quentin Lejeun, Christian Lessig, Chao Li, Thomas Lippert, Jürg Luterbacher, Pekka Manninen, Jochem Marotzke, Satoshi Matsouoka, Charlotte Merchant, Peter Messmer, Gero Michel, Kristel Michielsen, Tomoki Miyakawa, Jens Müller, Ramsha Munir, Sandeep Narayanasetti, Ousmane Ndiaye, Carlos Nobre, Achim Oberg, Riko Oki, Tuba Özkan-Haller, Tim Palmer, Stan Posey, Andreas Prein, Odessa Primus, Mike Pritchard, Julie Pullen, Dian Putrasahan, Johannes Quaas, Krishnan Raghavan, Venkatachalam Ramaswamy, Markus Rapp, Florian Rauser, Markus Reichstein, Aromar Revi, Sonakshi Saluja, Masaki Satoh, Vera Schemann, Sebastian Schemm, Christina Schnadt Poberaj, Thomas Schulthess, Cath Senior, Jagadish Shukla, Manmeet Singh, Julia Slingo, Adam Sobel, Silvina Solman, Jenna Spitzer, Philip Stier, Thomas Stocker, Sarah Strock, Hang Su, Petteri Taalas, John Taylor, Susann Tegtmeier, Georg Teutsch, Adrian Tompkins, Uwe Ulbrich, Pier-Luigi Vidale, Chien-Ming Wu, Hao Xu, Najibullah Zaki, Laure Zanna, Tianjun Zhou, and Florian Ziemen
Earth Syst. Sci. Data, 16, 2113–2122, https://doi.org/10.5194/essd-16-2113-2024, https://doi.org/10.5194/essd-16-2113-2024, 2024
Short summary
Short summary
To manage Earth in the Anthropocene, new tools, new institutions, and new forms of international cooperation will be required. Earth Virtualization Engines is proposed as an international federation of centers of excellence to empower all people to respond to the immense and urgent challenges posed by climate change.
Nico Lange, Björn Fiedler, Marta Álvarez, Alice Benoit-Cattin, Heather Benway, Pier Luigi Buttigieg, Laurent Coppola, Kim Currie, Susana Flecha, Dana S. Gerlach, Makio Honda, I. Emma Huertas, Siv K. Lauvset, Frank Muller-Karger, Arne Körtzinger, Kevin M. O'Brien, Sólveig R. Ólafsdóttir, Fernando C. Pacheco, Digna Rueda-Roa, Ingunn Skjelvan, Masahide Wakita, Angelicque White, and Toste Tanhua
Earth Syst. Sci. Data, 16, 1901–1931, https://doi.org/10.5194/essd-16-1901-2024, https://doi.org/10.5194/essd-16-1901-2024, 2024
Short summary
Short summary
The Synthesis Product for Ocean Time Series (SPOTS) is a novel achievement expanding and complementing the biogeochemical data landscape by providing consistent and high-quality biogeochemical time-series data from 12 ship-based fixed time-series programs. SPOTS covers multiple unique marine environments and time-series ranges, including data from 1983 to 2021. All in all, it facilitates a variety of applications that benefit from the collective value of biogeochemical time-series observations.
Siv K. Lauvset, Nico Lange, Toste Tanhua, Henry C. Bittig, Are Olsen, Alex Kozyr, Simone Alin, Marta Álvarez, Kumiko Azetsu-Scott, Leticia Barbero, Susan Becker, Peter J. Brown, Brendan R. Carter, Leticia Cotrim da Cunha, Richard A. Feely, Mario Hoppema, Matthew P. Humphreys, Masao Ishii, Emil Jeansson, Li-Qing Jiang, Steve D. Jones, Claire Lo Monaco, Akihiko Murata, Jens Daniel Müller, Fiz F. Pérez, Benjamin Pfeil, Carsten Schirnick, Reiner Steinfeldt, Toru Suzuki, Bronte Tilbrook, Adam Ulfsbo, Anton Velo, Ryan J. Woosley, and Robert M. Key
Earth Syst. Sci. Data, 14, 5543–5572, https://doi.org/10.5194/essd-14-5543-2022, https://doi.org/10.5194/essd-14-5543-2022, 2022
Short summary
Short summary
GLODAP is a data product for ocean inorganic carbon and related biogeochemical variables measured by the chemical analysis of water bottle samples from scientific cruises. GLODAPv2.2022 is the fourth update of GLODAPv2 from 2016. The data that are included have been subjected to extensive quality controlling, including systematic evaluation of measurement biases. This version contains data from 1085 hydrographic cruises covering the world's oceans from 1972 to 2021.
Rainer Kiko, Marc Picheral, David Antoine, Marcel Babin, Léo Berline, Tristan Biard, Emmanuel Boss, Peter Brandt, Francois Carlotti, Svenja Christiansen, Laurent Coppola, Leandro de la Cruz, Emilie Diamond-Riquier, Xavier Durrieu de Madron, Amanda Elineau, Gabriel Gorsky, Lionel Guidi, Helena Hauss, Jean-Olivier Irisson, Lee Karp-Boss, Johannes Karstensen, Dong-gyun Kim, Rachel M. Lekanoff, Fabien Lombard, Rubens M. Lopes, Claudie Marec, Andrew M. P. McDonnell, Daniela Niemeyer, Margaux Noyon, Stephanie H. O'Daly, Mark D. Ohman, Jessica L. Pretty, Andreas Rogge, Sarah Searson, Masashi Shibata, Yuji Tanaka, Toste Tanhua, Jan Taucher, Emilia Trudnowska, Jessica S. Turner, Anya Waite, and Lars Stemmann
Earth Syst. Sci. Data, 14, 4315–4337, https://doi.org/10.5194/essd-14-4315-2022, https://doi.org/10.5194/essd-14-4315-2022, 2022
Short summary
Short summary
The term
marine particlescomprises detrital aggregates; fecal pellets; bacterioplankton, phytoplankton and zooplankton; and even fish. Here, we present a global dataset that contains 8805 vertical particle size distribution profiles obtained with Underwater Vision Profiler 5 (UVP5) camera systems. These data are valuable to the scientific community, as they can be used to constrain important biogeochemical processes in the ocean, such as the flux of carbon to the deep sea.
Siv K. Lauvset, Nico Lange, Toste Tanhua, Henry C. Bittig, Are Olsen, Alex Kozyr, Marta Álvarez, Susan Becker, Peter J. Brown, Brendan R. Carter, Leticia Cotrim da Cunha, Richard A. Feely, Steven van Heuven, Mario Hoppema, Masao Ishii, Emil Jeansson, Sara Jutterström, Steve D. Jones, Maren K. Karlsen, Claire Lo Monaco, Patrick Michaelis, Akihiko Murata, Fiz F. Pérez, Benjamin Pfeil, Carsten Schirnick, Reiner Steinfeldt, Toru Suzuki, Bronte Tilbrook, Anton Velo, Rik Wanninkhof, Ryan J. Woosley, and Robert M. Key
Earth Syst. Sci. Data, 13, 5565–5589, https://doi.org/10.5194/essd-13-5565-2021, https://doi.org/10.5194/essd-13-5565-2021, 2021
Short summary
Short summary
GLODAP is a data product for ocean inorganic carbon and related biogeochemical variables measured by the chemical analysis of water bottle samples from scientific cruises. GLODAPv2.2021 is the third update of GLODAPv2 from 2016. The data that are included have been subjected to extensive quality control, including systematic evaluation of measurement biases. This version contains data from 989 hydrographic cruises covering the world's oceans from 1972 to 2020.
Puthenveettil Narayana Menon Vinayachandran, Yukio Masumoto, Michael J. Roberts, Jenny A. Huggett, Issufo Halo, Abhisek Chatterjee, Prakash Amol, Garuda V. M. Gupta, Arvind Singh, Arnab Mukherjee, Satya Prakash, Lynnath E. Beckley, Eric Jorden Raes, and Raleigh Hood
Biogeosciences, 18, 5967–6029, https://doi.org/10.5194/bg-18-5967-2021, https://doi.org/10.5194/bg-18-5967-2021, 2021
Short summary
Short summary
Upwelling in the coastal ocean triggers biological productivity and thus enhances fisheries. Therefore, understanding the phenomenon of upwelling and the underlying mechanisms is important. In this paper, the present understanding of the upwelling along the coastline of the Indian Ocean from the coast of Africa all the way up to the coast of Australia is reviewed. The review provides a synthesis of the physical processes associated with upwelling and its impact on the marine ecosystem.
Elianne Egge, Stephanie Elferink, Daniel Vaulot, Uwe John, Gunnar Bratbak, Aud Larsen, and Bente Edvardsen
Earth Syst. Sci. Data, 13, 4913–4928, https://doi.org/10.5194/essd-13-4913-2021, https://doi.org/10.5194/essd-13-4913-2021, 2021
Short summary
Short summary
Here we present a dataset of DNA sequences obtained from size-fractionated seawater samples from the Arctic Ocean that are used to identify taxonomic groups of unicellular plankton. This dataset can be used to investigate the diversity and distribution of plankton groups both by season and by depth and thus increase our understanding of the factors influencing the dynamics of this important part of the Arctic marine ecosystem.
Léo Mahieu, Claire Lo Monaco, Nicolas Metzl, Jonathan Fin, and Claude Mignon
Ocean Sci., 16, 1559–1576, https://doi.org/10.5194/os-16-1559-2020, https://doi.org/10.5194/os-16-1559-2020, 2020
Short summary
Short summary
We investigated the evolution of anthropogenic CO2 (Cant) in the Antarctic Bottom Water in the southern Indian Ocean since 1978 based on observations from 16 reocupations. We found that the Cant and dissolved inorganic carbon increased at about the same rate over the 40-year period. However, the data also show large interannual variations and a surprising stability of Cant in the last decade, likely reflecting the variability of bottom water formation and circulation in the Southern Ocean.
Wilken-Jon von Appen, Volker H. Strass, Astrid Bracher, Hongyan Xi, Cora Hörstmann, Morten H. Iversen, and Anya M. Waite
Ocean Sci., 16, 253–270, https://doi.org/10.5194/os-16-253-2020, https://doi.org/10.5194/os-16-253-2020, 2020
Short summary
Short summary
Nutrient-rich water is moved to the surface near continental margins. Then it forms rich but difficult to observe spatial structures of physical and biological/biogeochemical properties. Here we present a high resolution (2.5 km) section through such features obtained in May 2018 with a vehicle towed behind a ship. Considering that such interactions of physics and biology are common in the ocean, they likely strongly influence the productivity of such systems and their role in CO2 uptake.
Peter von Dassow, Francisco Díaz-Rosas, El Mahdi Bendif, Juan-Diego Gaitán-Espitia, Daniella Mella-Flores, Sebastian Rokitta, Uwe John, and Rodrigo Torres
Biogeosciences, 15, 1515–1534, https://doi.org/10.5194/bg-15-1515-2018, https://doi.org/10.5194/bg-15-1515-2018, 2018
Short summary
Short summary
Coccolithophores are microalgae which produce much of the calcium carbonate in the ocean, important to making organic carbon sink to great depths, and they may be negatively affected by the decline in ocean pH as CO2 rises. Can these important microbes adapt? This study found that coccolithophores inhabiting waters naturally low in pH may have already reached the limit of their ability to adapt. This suggests that how the ocean's biota sequester carbon will be strongly affected in the future.
Related subject area
Biogeochemistry: Environmental Microbiology
Technical note: Flow cytometry assays for the detection, counting and cell sorting of polyphosphate-accumulating bacteria
Animal burrowing at cold seep ecotones boosts productivity by linking macromolecule turnover with chemosynthesis and nutrient cycling
Clouds influence the functioning of airborne microorganisms
Grazing mortality as a controlling factor in the uncultured non-cyanobacterial diazotroph (Gamma A) around the Kuroshio region
Ideas and perspectives: Microorganisms in the air through the lenses of atmospheric chemistry and microphysics
Effects of surface water interactions with karst groundwater on microbial biomass, metabolism, and production
Overview: Global change effects on terrestrial biogeochemistry at the plant–soil interface
Changes in diazotrophic community structure associated with Kuroshio succession in the northern South China Sea
Technical note: A comparison of methods for estimating coccolith mass
Fractionation of stable carbon isotopes during formate consumption in anoxic rice paddy soils and lake sediments
Characteristics of bacterial and fungal communities and their associations with sugar compounds in atmospheric aerosols at a rural site in northern China
Responses of globally important phytoplankton species to olivine dissolution products and implications for carbon dioxide removal via ocean alkalinity enhancement
Differentiation of cognate bacterial communities in thermokarst landscapes: implications for ecological consequences of permafrost degradation
A multi-phase biogeochemical model for mitigating earthquake-induced liquefaction via microbially induced desaturation and calcium carbonate precipitation
Phosphorus regulates ectomycorrhizal fungi biomass production in a Norway spruce forest
Reallocation of elemental content and macromolecules in the coccolithophore Emiliania huxleyi to acclimate to climate change
Abrasion of sedimentary rocks as a source of hydrogen peroxide and nutrients to subglacial ecosystems
Nitrous oxide (N2O) synthesis by the freshwater cyanobacterium Microcystis aeruginosa
Interdisciplinary strategy to assess the impact of meteorological variables on the biochemical composition of the rain and the dynamics of a small eutrophic lake under rain forcing
Depth-related patterns in microbial community responses to complex organic matter in the western North Atlantic Ocean
Assessing the influence of ocean alkalinity enhancement on a coastal phytoplankton community
Eddy-enhanced primary production sustains heterotrophic microbial activities in the Eastern Tropical North Atlantic
Composition and niche-specific characteristics of microbial consortia colonizing Marsberg copper mine in the Rhenish Massif
Diversity and assembly processes of microbial eukaryotic communities in Fildes Peninsula Lakes (West Antarctica)
Nitrophobic ectomycorrhizal fungi are associated with enhanced hydrophobicity of soil organic matter in a Norway spruce forest
Physiological control on carbon isotope fractionation in marine phytoplankton
Implementation of mycorrhizal mechanisms into soil carbon model improves the prediction of long-term processes of plant litter decomposition
Impact of dust addition on the microbial food web under present and future conditions of pH and temperature
Fractionation of stable carbon isotopes during acetate consumption by methanogenic and sulfidogenic microbial communities in rice paddy soils and lake sediments
Hydrothermal trace metal release and microbial metabolism in the northeastern Lau Basin of the South Pacific Ocean
Sedimentation rate and organic matter dynamics shape microbiomes across a continental margin
Disturbance triggers non-linear microbe–environment feedbacks
Microbial and geo-archaeological records reveal the growth rate, origin and composition of desert rock surface communities
Metagenomic insights into the metabolism of microbial communities that mediate iron and methane cycling in Lake Kinneret iron-rich methanic sediments
Spatiotemporal patterns of N2 fixation in coastal waters derived from rate measurements and remote sensing
Biotic and abiotic transformation of amino acids in cloud water: experimental studies and atmospheric implications
Potential bioavailability of organic matter from atmospheric particles to marine heterotrophic bacteria
Microbial functional signature in the atmospheric boundary layer
New insight to niche partitioning and ecological function of ammonia oxidizing archaea in subtropical estuarine ecosystem
Impact of reactive surfaces on the abiotic reaction between nitrite and ferrous iron and associated nitrogen and oxygen isotope dynamics
Reviews and syntheses: Bacterial bioluminescence – ecology and impact in the biological carbon pump
Salinity-dependent algae uptake and subsequent carbon and nitrogen metabolisms of two intertidal foraminifera (Ammonia tepida and Haynesina germanica)
On giant shoulders: how a seamount affects the microbial community composition of seawater and sponges
Spatial variations in sedimentary N-transformation rates in the North Sea (German Bight)
Patterns of (trace) metals and microorganisms in the Rainbow hydrothermal vent plume at the Mid-Atlantic Ridge
Co-occurrence of Fe and P stress in natural populations of the marine diazotroph Trichodesmium
Senescence as the main driver of iodide release from a diverse range of marine phytoplankton
Reviews and syntheses: Biological weathering and its consequences at different spatial levels – from nanoscale to global scale
Deep-sea sponge grounds as nutrient sinks: denitrification is common in boreo-Arctic sponges
Inducing the attachment of cable bacteria on oxidizing electrodes
Clémentin Bouquet, Hermine Billard, Cécile C. Bidaud, Jonathan Colombet, Young-Tae Chang, Joan Artigas, Isabelle Batisson, Karim Benzerara, Fériel Skouri-Panet, Elodie Duprat, and Anne-Catherine Lehours
Biogeosciences, 22, 1729–1744, https://doi.org/10.5194/bg-22-1729-2025, https://doi.org/10.5194/bg-22-1729-2025, 2025
Short summary
Short summary
In the context of the ecological sustainability of phosphorus, the ubiquitous presence of polyphosphate-accumulating bacteria in natural environments invites efforts to reveal their unknown roles in the biogeochemical cycle of phosphorus. In this study, we evaluated the potential of combining the staining of intracellular polyphosphate granules and their subsequent detection by flow cytometry for the detection, quantification and cell sorting of polyphosphate-accumulating bacteria.
Maxim Rubin-Blum, Eyal Rahav, Guy Sisma-Ventura, Yana Yudkovski, Zoya Harbuzov, Or M. Bialik, Oded Ezra, Anneleen Foubert, Barak Herut, and Yizhaq Makovsky
Biogeosciences, 22, 1321–1340, https://doi.org/10.5194/bg-22-1321-2025, https://doi.org/10.5194/bg-22-1321-2025, 2025
Short summary
Short summary
Chemotones, transition zones in chemosynthetic ecosystems, alter geochemical cycles and biodiversity. We studied seep chemotones, which are heavily burrowed by ghost shrimp. To investigate if burrowing affects habitat functionality, we surveyed the seafloor with deep-sea vehicles, analyzed sediment, and explored microbial communities in burrows. We found chemosynthetic biofilms, linking them to macromolecule turnover and nutrient cycling. This process may play a crucial role in deep-sea cycles.
Raphaëlle Péguilhan, Florent Rossi, Muriel Joly, Engy Nasr, Bérénice Batut, François Enault, Barbara Ervens, and Pierre Amato
Biogeosciences, 22, 1257–1275, https://doi.org/10.5194/bg-22-1257-2025, https://doi.org/10.5194/bg-22-1257-2025, 2025
Short summary
Short summary
Using comparative metagenomics and metatranscriptomics, we examined the functioning of airborne microorganisms in clouds and a clear atmosphere. Clouds are atmospheric masses where multiple microbial processes are promoted compared with a clear atmosphere. Overrepresented microbial functions of interest include the processing of chemical compounds, biomass production, and regulation of oxidants. This has implications for biogeochemical cycles and microbial ecology.
Takuya Sato, Tamaha Yamaguchi, Kiyotaka Hidataka, Sayaka Sogawa, Takashi Setou, Taketoshi Kodama, Takuhei Shiozaki, and Kazutaka Takahashi
Biogeosciences, 22, 625–639, https://doi.org/10.5194/bg-22-625-2025, https://doi.org/10.5194/bg-22-625-2025, 2025
Short summary
Short summary
Gamma A is a widespread non-cyanobacterial diazotroph that plays a crucial role in marine ecosystems, but its controlling factors are still largely unknown. This study, for the first time, quantified microzooplankton grazing on Gamma A and revealed the significance of grazing pressure on Gamma A distribution around the Kuroshio region. It highlights the importance of top-down controls on Gamma A abundance and the associated nitrogen cycle.
Barbara Ervens, Pierre Amato, Kifle Aregahegn, Muriel Joly, Amina Khaled, Tiphaine Labed-Veydert, Frédéric Mathonat, Leslie Nuñez López, Raphaëlle Péguilhan, and Minghui Zhang
Biogeosciences, 22, 243–256, https://doi.org/10.5194/bg-22-243-2025, https://doi.org/10.5194/bg-22-243-2025, 2025
Short summary
Short summary
Atmospheric microorganisms are a small fraction of Earth's microbiome, with bacteria being a significant part. Aerosolized bacteria are airborne for a few days, encountering unique chemical and physical conditions affecting stress levels and survival. We explore chemical and microphysical conditions bacteria encounter, highlighting potential nutrient and oxidant limitations and diverse effects by pollutants, which may ultimately impact the microbiome's role in global ecosystems and biodiversity.
Adrian Barry-Sosa, Madison K. Flint, Justin C. Ellena, Jonathan B. Martin, and Brent C. Christner
Biogeosciences, 21, 3965–3984, https://doi.org/10.5194/bg-21-3965-2024, https://doi.org/10.5194/bg-21-3965-2024, 2024
Short summary
Short summary
This study examined springs in north central Florida focusing on how interactions between the surface and subsurface affected the properties of groundwater microbes. We found that microbes reproduced at rates that greatly exceed those documented for any other aquifer. Although the groundwater discharged to spring runs contains low concentrations of nutrients, our results indicate that microbes have access to sources of energy and produce new cells at rates similar to surface waterbodies.
Lucia Fuchslueger, Emily Francesca Solly, Alberto Canarini, and Albert Carles Brangarí
Biogeosciences, 21, 3959–3964, https://doi.org/10.5194/bg-21-3959-2024, https://doi.org/10.5194/bg-21-3959-2024, 2024
Short summary
Short summary
This overview of the special issue “Global change effects on terrestrial biogeochemistry at the plant–soil interface” features empirical, conceptual and modelling-based studies and outlines key findings on plant responses to elevated CO2; soil organism responses to warming; impacts on soil organic carbon, nitrogen and mineral nutrient cycling; and water level changes affecting greenhouse gas emissions, from the Arctic to the tropics, which are crucial for deciphering feedbacks to global change.
Han Zhang, Guangming Mai, Weicheng Luo, Meng Chen, Ran Duan, and Tuo Shi
Biogeosciences, 21, 2529–2546, https://doi.org/10.5194/bg-21-2529-2024, https://doi.org/10.5194/bg-21-2529-2024, 2024
Short summary
Short summary
We report taxon-specific biogeography of N2-fixing microbes (diazotrophs) driven by Kuroshio intrusion (Kl) into the South China Sea. We show that the composition and distribution of distinct diazotrophic taxa shift with Kl-induced variations in physicochemical parameters of seawater and that Kl shapes diazotrophic community primarily as a stochastic process. This study thus has implications for the distribution of diazotrophs in a future warming ocean, as Kls are projected to intensify.
Celina Rebeca Valença, Luc Beaufort, Gustaaf Marinus Hallegraeff, and Marius Nils Müller
Biogeosciences, 21, 1601–1611, https://doi.org/10.5194/bg-21-1601-2024, https://doi.org/10.5194/bg-21-1601-2024, 2024
Short summary
Short summary
Coccolithophores contribute to the global carbon cycle and their calcite structures (coccoliths) are used as a palaeoproxy to understand past oceanographic conditions. Here, we compared three frequently used methods to estimate coccolith mass from the model species Emiliania huxleyi and the results allow for a high level of comparability between the methods, facilitating future comparisons and consolidation of mass changes observed from ecophysiological and biogeochemical studies.
Ralf Conrad and Peter Claus
Biogeosciences, 21, 1161–1172, https://doi.org/10.5194/bg-21-1161-2024, https://doi.org/10.5194/bg-21-1161-2024, 2024
Short summary
Short summary
Knowledge of carbon isotope fractionation is important for the assessment of the pathways involved in the degradation of organic matter. Formate is an important intermediate during this process. It was mainly converted to carbon dioxide and acetate both in the presence and absence of sulfate. Methane was only a minor product and was mainly formed from the acetate. The acetate was depleted in the heavy carbon atom relative to formate, while the carbon dioxide was enriched.
Mutong Niu, Shu Huang, Wei Hu, Yajie Wang, Wanyun Xu, Wan Wei, Qiang Zhang, Zihan Wang, Donghuan Zhang, Rui Jin, Libin Wu, Junjun Deng, Fangxia Shen, and Pingqing Fu
Biogeosciences, 20, 4915–4930, https://doi.org/10.5194/bg-20-4915-2023, https://doi.org/10.5194/bg-20-4915-2023, 2023
Short summary
Short summary
Sugar compounds in air can trace the source of bioaerosols that affect public health and climate. In rural north China, we observed increased fungal activity at night and less variable bacterial community diversity. Certain night-increasing sugar compounds were more closely related to fungi than bacteria. The fungal community greatly influenced sugar compounds, while bacteria played a limited role. Caution is advised when using sugar compounds to trace airborne microbes, particularly bacteria.
David A. Hutchins, Fei-Xue Fu, Shun-Chung Yang, Seth G. John, Stephen J. Romaniello, M. Grace Andrews, and Nathan G. Walworth
Biogeosciences, 20, 4669–4682, https://doi.org/10.5194/bg-20-4669-2023, https://doi.org/10.5194/bg-20-4669-2023, 2023
Short summary
Short summary
Applications of the mineral olivine are a promising means to capture carbon dioxide via coastal enhanced weathering, but little is known about the impacts on important marine phytoplankton. We examined the effects of olivine dissolution products on species from three major phytoplankton groups: diatoms, coccolithophores, and cyanobacteria. Growth and productivity were generally either unaffected or stimulated, suggesting the effects of olivine on key phytoplankton are negligible or positive.
Ze Ren, Shudan Ye, Hongxuan Li, Xilei Huang, and Luyao Chen
Biogeosciences, 20, 4241–4258, https://doi.org/10.5194/bg-20-4241-2023, https://doi.org/10.5194/bg-20-4241-2023, 2023
Short summary
Short summary
Permafrost thaw initiates thermokarst landscape formation, resulting in distinct new habitats, including degraded permafrost soil, thermokarst lake sediments, and lake water. These distinct habitats harbored differentiated bacterial communities that originated from the same source, differing in diversity, assembly mechanisms, and environmental influences. The results imply ecological consequences of permafrost degradation in the face of further climate change.
Caitlyn A. Hall, Andre van Turnhout, Edward Kavazanjian Jr., Leon A. van Paassen, and Bruce Rittmann
Biogeosciences, 20, 2903–2917, https://doi.org/10.5194/bg-20-2903-2023, https://doi.org/10.5194/bg-20-2903-2023, 2023
Short summary
Short summary
Earthquake-induced soil liquefaction poses a significant global threat. Microbially induced desaturation and precipitation (MIDP) via denitrification is a potentially sustainable, non-disruptive bacteria-driven ground improvement technique under existing structures. We developed a next-generation biogeochemical model to understand and predict the behavior of MIDP in the natural environment to design field-based hazard mitigation treatments.
Juan Pablo Almeida, Lorenzo Menichetti, Alf Ekblad, Nicholas P. Rosenstock, and Håkan Wallander
Biogeosciences, 20, 1443–1458, https://doi.org/10.5194/bg-20-1443-2023, https://doi.org/10.5194/bg-20-1443-2023, 2023
Short summary
Short summary
In forests, trees allocate a significant amount of carbon belowground to support mycorrhizal symbiosis. In northern forests nitrogen normally regulates this allocation and consequently mycorrhizal fungi growth. In this study we demonstrate that in a conifer forest from Sweden, fungal growth is regulated by phosphorus instead of nitrogen. This is probably due to an increase in nitrogen deposition to soils caused by decades of human pollution that has altered the ecosystem nutrient regime.
Yong Zhang, Yong Zhang, Shuai Ma, Hanbing Chen, Jiabing Li, Zhengke Li, Kui Xu, Ruiping Huang, Hong Zhang, Yonghe Han, and Jun Sun
Biogeosciences, 20, 1299–1312, https://doi.org/10.5194/bg-20-1299-2023, https://doi.org/10.5194/bg-20-1299-2023, 2023
Short summary
Short summary
We found that increasing light intensity compensates for the negative effects of low phosphorus (P) availability on cellular protein and nitrogen contents. Reduced P availability, increasing light intensity, and ocean acidification act synergistically to increase cellular contents of carbohydrate and POC and the allocation of POC to carbohydrate. These regulation mechanisms in Emiliania huxleyi could provide vital information for evaluating carbon cycle in marine ecosystems under global change.
Beatriz Gill-Olivas, Jon Telling, Mark Skidmore, and Martyn Tranter
Biogeosciences, 20, 929–943, https://doi.org/10.5194/bg-20-929-2023, https://doi.org/10.5194/bg-20-929-2023, 2023
Short summary
Short summary
Microbial ecosystems have been found in all subglacial environments sampled to date. Yet, little is known of the sources of energy and nutrients that sustain these microbial populations. This study shows that crushing of sedimentary rocks, which contain organic carbon, carbonate and sulfide minerals, along with previously weathered silicate minerals, produces a range of compounds and nutrients which can be utilised by the diverse suite of microbes that inhabit glacier beds.
Federico Fabisik, Benoit Guieysse, Jonathan Procter, and Maxence Plouviez
Biogeosciences, 20, 687–693, https://doi.org/10.5194/bg-20-687-2023, https://doi.org/10.5194/bg-20-687-2023, 2023
Short summary
Short summary
We show, for the first time, that pure cultures of the cyanobacterium Microcystis aeruginosa can synthesize the potent greenhouse gas N2O using nitrite as substrate. Our findings have broad environmental implications because M. aeruginosa is globally found in freshwater ecosystems and is often the dominant species found in algae blooms. Further research is now needed to determine the occurrence and significance of N2O emissions from ecosystems rich with M. aeruginosa.
Fanny Noirmain, Jean-Luc Baray, Frédéric Tridon, Philippe Cacault, Hermine Billard, Guillaume Voyard, Joël Van Baelen, and Delphine Latour
Biogeosciences, 19, 5729–5749, https://doi.org/10.5194/bg-19-5729-2022, https://doi.org/10.5194/bg-19-5729-2022, 2022
Short summary
Short summary
We present a study linking rain, meteorology, and mountain lake phytoplankton dynamics on the basis of a case study at Aydat (France) in September 2020. The air mass origin mainly influences the rain chemical composition, which depends on the type of rain, convective or stratiform. Our results also highlighted a non-negligible presence of photosynthetic cells in rainwater. The impact of the atmospheric forcing on the lake could play a key role in phytoplankton dynamics in the temperate zone.
Sarah A. Brown, John Paul Balmonte, Adrienne Hoarfrost, Sherif Ghobrial, and Carol Arnosti
Biogeosciences, 19, 5617–5631, https://doi.org/10.5194/bg-19-5617-2022, https://doi.org/10.5194/bg-19-5617-2022, 2022
Short summary
Short summary
Bacteria use extracellular enzymes to cut large organic matter to sizes small enough for uptake. We compared the enzymatic response of surface, mid-water, and deep-ocean bacteria to complex natural substrates. Bacteria in surface and mid-depth waters produced a much wider range of enzymes than those in the deep ocean and may therefore consume a broader range of organic matter. The extent to which organic matter is recycled by bacteria depends in part on its residence time at different depths.
Aaron Ferderer, Zanna Chase, Fraser Kennedy, Kai G. Schulz, and Lennart T. Bach
Biogeosciences, 19, 5375–5399, https://doi.org/10.5194/bg-19-5375-2022, https://doi.org/10.5194/bg-19-5375-2022, 2022
Short summary
Short summary
Ocean alkalinity enhancement has the capacity to remove vast quantities of carbon from the atmosphere, but its effect on marine ecosystems is largely unknown. We assessed the effect of increased alkalinity on a coastal phytoplankton community when seawater was equilibrated and not equilibrated with atmospheric CO2. We found that the phytoplankton community was moderately affected by increased alkalinity and equilibration with atmospheric CO2 had little influence on this effect.
Quentin Devresse, Kevin W. Becker, Arne Bendinger, Johannes Hahn, and Anja Engel
Biogeosciences, 19, 5199–5219, https://doi.org/10.5194/bg-19-5199-2022, https://doi.org/10.5194/bg-19-5199-2022, 2022
Short summary
Short summary
Eddies are ubiquitous in the ocean and alter physical, chemical, and biological processes. However, how they affect organic carbon production and consumption is largely unknown. Here we show how an eddy triggers a cascade effect on biomass production and metabolic activities of phyto- and bacterioplankton. Our results may contribute to the improvement of biogeochemical models used to estimate carbon fluxes in the ocean.
Sania Arif, Heiko Nacke, Elias Schliekmann, Andreas Reimer, Gernot Arp, and Michael Hoppert
Biogeosciences, 19, 4883–4902, https://doi.org/10.5194/bg-19-4883-2022, https://doi.org/10.5194/bg-19-4883-2022, 2022
Short summary
Short summary
The natural enrichment of Chloroflexi (Ktedonobacteria) at the Kilianstollen Marsberg copper mine rocks being exposed to the acidic sulfate-rich leachate led to an investigation of eight metagenomically assembled genomes (MAGs) involved in copper and other transition heavy metal resistance in addition to low pH resistance and aromatic compounds degradation. The present study offers functional insights about a novel cold-adapted Ktedonobacteria MAG extremophily along with other phyla MAGs.
Chunmei Zhang, Huirong Li, Yinxin Zeng, Haitao Ding, Bin Wang, Yangjie Li, Zhongqiang Ji, Yonghong Bi, and Wei Luo
Biogeosciences, 19, 4639–4654, https://doi.org/10.5194/bg-19-4639-2022, https://doi.org/10.5194/bg-19-4639-2022, 2022
Short summary
Short summary
The unique microbial eukaryotic community structure and lower diversity have been demonstrated in five freshwater lakes of the Fildes Peninsula, Antarctica. Stochastic processes and biotic co-occurrence patterns were shown to be important in shaping microbial eukaryotic communities in the area. Our study provides a better understanding of the dynamic patterns and ecological assembly processes of microbial eukaryotic communities in Antarctic oligotrophic lakes (Fildes Peninsula).
Juan Pablo Almeida, Nicholas P. Rosenstock, Susanne K. Woche, Georg Guggenberger, and Håkan Wallander
Biogeosciences, 19, 3713–3726, https://doi.org/10.5194/bg-19-3713-2022, https://doi.org/10.5194/bg-19-3713-2022, 2022
Short summary
Short summary
Fungi living in symbiosis with tree roots can accumulate belowground, forming special tissues than can repel water. We measured the water repellency of organic material incubated belowground and correlated it with fungal growth. We found a positive association between water repellency and root symbiotic fungi. These results are important because an increase in soil water repellency can reduce the release of CO2 from soils into the atmosphere and mitigate the effects of greenhouse gasses.
Karen M. Brandenburg, Björn Rost, Dedmer B. Van de Waal, Mirja Hoins, and Appy Sluijs
Biogeosciences, 19, 3305–3315, https://doi.org/10.5194/bg-19-3305-2022, https://doi.org/10.5194/bg-19-3305-2022, 2022
Short summary
Short summary
Reconstructions of past CO2 concentrations rely on proxy estimates, with one line of proxies relying on the CO2-dependence of stable carbon isotope fractionation in marine phytoplankton. Culturing experiments provide insights into which processes may impact this. We found, however, that the methods with which these culturing experiments are performed also influence 13C fractionation. Caution should therefore be taken when extrapolating results from these experiments to proxy applications.
Weilin Huang, Peter M. van Bodegom, Toni Viskari, Jari Liski, and Nadejda A. Soudzilovskaia
Biogeosciences, 19, 1469–1490, https://doi.org/10.5194/bg-19-1469-2022, https://doi.org/10.5194/bg-19-1469-2022, 2022
Short summary
Short summary
This work focuses on one of the essential pathways of mycorrhizal impact on C cycles: the mediation of plant litter decomposition. We present a model based on litter chemical quality which precludes a conclusive examination of mycorrhizal impacts on soil C. It improves long-term decomposition predictions and advances our understanding of litter decomposition dynamics. It creates a benchmark in quantitatively examining the impacts of plant–microbe interactions on soil C dynamics.
Julie Dinasquet, Estelle Bigeard, Frédéric Gazeau, Farooq Azam, Cécile Guieu, Emilio Marañón, Céline Ridame, France Van Wambeke, Ingrid Obernosterer, and Anne-Claire Baudoux
Biogeosciences, 19, 1303–1319, https://doi.org/10.5194/bg-19-1303-2022, https://doi.org/10.5194/bg-19-1303-2022, 2022
Short summary
Short summary
Saharan dust deposition of nutrients and trace metals is crucial to microbes in the Mediterranean Sea. Here, we tested the response of microbial and viral communities to simulated dust deposition under present and future conditions of temperature and pH. Overall, the effect of the deposition was dependent on the initial microbial assemblage, and future conditions will intensify microbial responses. We observed effects on trophic interactions, cascading all the way down to viral processes.
Ralf Conrad, Pengfei Liu, and Peter Claus
Biogeosciences, 18, 6533–6546, https://doi.org/10.5194/bg-18-6533-2021, https://doi.org/10.5194/bg-18-6533-2021, 2021
Short summary
Short summary
Acetate is an important intermediate during the anaerobic degradation of organic matter. It is consumed by methanogenic and sulfidogenic microorganisms accompanied by stable carbon isotope fractionation. We determined isotope fractionation under different conditions in two paddy soils and two lake sediments and also determined the composition of the microbial communities. Despite a relatively wide range of experimental conditions, the range of fractionation factors was quite moderate.
Natalie R. Cohen, Abigail E. Noble, Dawn M. Moran, Matthew R. McIlvin, Tyler J. Goepfert, Nicholas J. Hawco, Christopher R. German, Tristan J. Horner, Carl H. Lamborg, John P. McCrow, Andrew E. Allen, and Mak A. Saito
Biogeosciences, 18, 5397–5422, https://doi.org/10.5194/bg-18-5397-2021, https://doi.org/10.5194/bg-18-5397-2021, 2021
Short summary
Short summary
A previous study documented an intense hydrothermal plume in the South Pacific Ocean; however, the iron release associated with this plume and the impact on microbiology were unclear. We describe metal concentrations associated with multiple hydrothermal plumes in this region and protein signatures of plume-influenced microbes. Our findings demonstrate that resources released from these systems can be transported away from their source and may alter the physiology of surrounding microbes.
Sabyasachi Bhattacharya, Tarunendu Mapder, Svetlana Fernandes, Chayan Roy, Jagannath Sarkar, Moidu Jameela Rameez, Subhrangshu Mandal, Abhijit Sar, Amit Kumar Chakraborty, Nibendu Mondal, Sumit Chatterjee, Bomba Dam, Aditya Peketi, Ranadhir Chakraborty, Aninda Mazumdar, and Wriddhiman Ghosh
Biogeosciences, 18, 5203–5222, https://doi.org/10.5194/bg-18-5203-2021, https://doi.org/10.5194/bg-18-5203-2021, 2021
Short summary
Short summary
Physicochemical determinants of microbiome architecture across continental shelves–slopes are unknown, so we explored the geomicrobiology along 3 m sediment horizons of seasonal (shallow coastal) and perennial (deep sea) hypoxic zones of the Arabian Sea. Nature, concentration, and fate of the organic matter delivered to the sea floor were found to shape the microbiome across the western Indian margin, under direct–indirect influence of sedimentation rate and water column O2 level.
Aditi Sengupta, Sarah J. Fansler, Rosalie K. Chu, Robert E. Danczak, Vanessa A. Garayburu-Caruso, Lupita Renteria, Hyun-Seob Song, Jason Toyoda, Jacqueline Hager, and James C. Stegen
Biogeosciences, 18, 4773–4789, https://doi.org/10.5194/bg-18-4773-2021, https://doi.org/10.5194/bg-18-4773-2021, 2021
Short summary
Short summary
Conceptual models link microbes with the environment but are untested. We test a recent model using riverbed sediments. We exposed sediments to disturbances, going dry and becoming wet again. As the length of dry conditions got longer, there was a sudden shift in the ecology of microbes, chemistry of organic matter, and rates of microbial metabolism. We propose a new model based on feedbacks initiated by disturbance that cascade across biological, chemical, and functional aspects of the system.
Nimrod Wieler, Tali Erickson Gini, Osnat Gillor, and Roey Angel
Biogeosciences, 18, 3331–3342, https://doi.org/10.5194/bg-18-3331-2021, https://doi.org/10.5194/bg-18-3331-2021, 2021
Short summary
Short summary
Biological rock crusts (BRCs) are common microbial-based assemblages covering rocks in drylands. BRCs play a crucial role in arid environments because of the limited activity of plants and soil. Nevertheless, BRC development rates have never been dated. Here we integrated archaeological, microbiological and geological methods to provide a first estimation of the growth rate of BRCs under natural conditions. This can serve as an affordable dating tool in archaeological sites in arid regions.
Michal Elul, Maxim Rubin-Blum, Zeev Ronen, Itay Bar-Or, Werner Eckert, and Orit Sivan
Biogeosciences, 18, 2091–2106, https://doi.org/10.5194/bg-18-2091-2021, https://doi.org/10.5194/bg-18-2091-2021, 2021
Mindaugas Zilius, Irma Vybernaite-Lubiene, Diana Vaiciute, Donata Overlingė, Evelina Grinienė, Anastasija Zaiko, Stefano Bonaglia, Iris Liskow, Maren Voss, Agneta Andersson, Sonia Brugel, Tobia Politi, and Paul A. Bukaveckas
Biogeosciences, 18, 1857–1871, https://doi.org/10.5194/bg-18-1857-2021, https://doi.org/10.5194/bg-18-1857-2021, 2021
Short summary
Short summary
In fresh and brackish waters, algal blooms are often dominated by cyanobacteria, which have the ability to utilize atmospheric nitrogen. Cyanobacteria are also unusual in that they float to the surface and are dispersed by wind-driven currents. Their patchy and dynamic distribution makes it difficult to track their abundance and quantify their effects on nutrient cycling. We used remote sensing to map the distribution of cyanobacteria in a large Baltic lagoon and quantify their contributions.
Saly Jaber, Muriel Joly, Maxence Brissy, Martin Leremboure, Amina Khaled, Barbara Ervens, and Anne-Marie Delort
Biogeosciences, 18, 1067–1080, https://doi.org/10.5194/bg-18-1067-2021, https://doi.org/10.5194/bg-18-1067-2021, 2021
Short summary
Short summary
Our study is of interest to atmospheric scientists and environmental microbiologists, as we show that clouds can be considered a medium where bacteria efficiently degrade and transform amino acids, in competition with chemical processes. As current atmospheric multiphase models are restricted to chemical degradation of organic compounds, our conclusions motivate further model development.
Kahina Djaoudi, France Van Wambeke, Aude Barani, Nagib Bhairy, Servanne Chevaillier, Karine Desboeufs, Sandra Nunige, Mohamed Labiadh, Thierry Henry des Tureaux, Dominique Lefèvre, Amel Nouara, Christos Panagiotopoulos, Marc Tedetti, and Elvira Pulido-Villena
Biogeosciences, 17, 6271–6285, https://doi.org/10.5194/bg-17-6271-2020, https://doi.org/10.5194/bg-17-6271-2020, 2020
Romie Tignat-Perrier, Aurélien Dommergue, Alban Thollot, Olivier Magand, Timothy M. Vogel, and Catherine Larose
Biogeosciences, 17, 6081–6095, https://doi.org/10.5194/bg-17-6081-2020, https://doi.org/10.5194/bg-17-6081-2020, 2020
Short summary
Short summary
The adverse atmospheric environmental conditions do not appear suited for microbial life. We conducted the first global comparative metagenomic analysis to find out if airborne microbial communities might be selected by their ability to resist these adverse conditions. The relatively higher concentration of fungi led to the observation of higher proportions of stress-related functions in air. Fungi might likely resist and survive atmospheric physical stress better than bacteria.
Yanhong Lu, Shunyan Cheung, Ling Chen, Shuh-Ji Kao, Xiaomin Xia, Jianping Gan, Minhan Dai, and Hongbin Liu
Biogeosciences, 17, 6017–6032, https://doi.org/10.5194/bg-17-6017-2020, https://doi.org/10.5194/bg-17-6017-2020, 2020
Short summary
Short summary
Through a comprehensive investigation, we observed differential niche partitioning among diverse ammonia-oxidizing archaea (AOA) sublineages in a typical subtropical estuary. Distinct AOA communities observed at DNA and RNA levels suggested that a strong divergence in ammonia-oxidizing activity among different AOA groups occurs. Our result highlights the importance of identifying major ammonia oxidizers at RNA level in future studies.
Anna-Neva Visser, Scott D. Wankel, Pascal A. Niklaus, James M. Byrne, Andreas A. Kappler, and Moritz F. Lehmann
Biogeosciences, 17, 4355–4374, https://doi.org/10.5194/bg-17-4355-2020, https://doi.org/10.5194/bg-17-4355-2020, 2020
Short summary
Short summary
This study focuses on the chemical reaction between Fe(II) and nitrite, which has been reported to produce high levels of the greenhouse gas N2O. We investigated the extent to which dead biomass and Fe(II) minerals might enhance this reaction. Here, nitrite reduction was highest when both additives were present but less pronounced if only Fe(II) minerals were added. Both reaction systems show distinct differences, rather low N2O levels, and indicated the abiotic production of N2.
Lisa Tanet, Séverine Martini, Laurie Casalot, and Christian Tamburini
Biogeosciences, 17, 3757–3778, https://doi.org/10.5194/bg-17-3757-2020, https://doi.org/10.5194/bg-17-3757-2020, 2020
Short summary
Short summary
Bioluminescent bacteria, the most abundant light-emitting organisms in the ocean, can be free-living, be symbiotic or colonize organic particles. This review suggests that they act as a visual target and may indirectly influence the sequestration of biogenic carbon in oceans by increasing the attraction rate for consumers. We summarize the instrumentation available to quantify this impact in future studies and propose synthetic figures integrating these ecological and biogeochemical concepts.
Michael Lintner, Bianca Biedrawa, Julia Wukovits, Wolfgang Wanek, and Petra Heinz
Biogeosciences, 17, 3723–3732, https://doi.org/10.5194/bg-17-3723-2020, https://doi.org/10.5194/bg-17-3723-2020, 2020
Short summary
Short summary
Foraminifera are unicellular marine organisms that play an important role in the marine element cycle. Changes of environmental parameters such as salinity or temperature have a significant impact on the faunal assemblages. Our experiments show that changing salinity in the German Wadden Sea immediately influences the foraminiferal community. It seems that A. tepida is better adapted to salinity fluctuations than H. germanica.
Kathrin Busch, Ulrike Hanz, Furu Mienis, Benjamin Mueller, Andre Franke, Emyr Martyn Roberts, Hans Tore Rapp, and Ute Hentschel
Biogeosciences, 17, 3471–3486, https://doi.org/10.5194/bg-17-3471-2020, https://doi.org/10.5194/bg-17-3471-2020, 2020
Short summary
Short summary
Seamounts are globally abundant submarine structures that offer great potential to study the impacts and interactions of environmental gradients at a single geographic location. In an exemplary way, we describe potential mechanisms by which a seamount can affect the structure of pelagic and benthic (sponge-)associated microbial communities. We conclude that the geology, physical oceanography, biogeochemistry, and microbiology of seamounts are even more closely linked than currently appreciated.
Alexander Bratek, Justus E. E. van
Beusekom, Andreas Neumann, Tina Sanders, Jana Friedrich, Kay-Christian Emeis, and Kirstin Dähnke
Biogeosciences, 17, 2839–2851, https://doi.org/10.5194/bg-17-2839-2020, https://doi.org/10.5194/bg-17-2839-2020, 2020
Short summary
Short summary
The following paper highlights the importance of benthic N-transformation rates in different sediment types in the southern North Sea as a source of fixed nitrogen for primary producers and also as a sink of fixed nitrogen. Sedimentary fluxes of dissolved inorganic nitrogen support ∼7 to 59 % of the average annual primary production. Semi-permeable and permeable sediments contribute ∼68 % of the total benthic N2 production rates, counteracting eutrophication in the southern North Sea.
Sabine Haalboom, David M. Price, Furu Mienis, Judith D. L. van Bleijswijk, Henko C. de Stigter, Harry J. Witte, Gert-Jan Reichart, and Gerard C. A. Duineveld
Biogeosciences, 17, 2499–2519, https://doi.org/10.5194/bg-17-2499-2020, https://doi.org/10.5194/bg-17-2499-2020, 2020
Short summary
Short summary
Mineral mining in deep-sea hydrothermal settings will lead to the formation of plumes of fine-grained, chemically reactive, suspended matter. Understanding how natural hydrothermal plumes evolve as they disperse from their source, and how they affect their surrounding environment, may help in characterising the behaviour of the diluted part of mining plumes. The natural plume provided a heterogeneous, geochemically enriched habitat conducive to the development of a distinct microbial ecology.
Noelle A. Held, Eric A. Webb, Matthew M. McIlvin, David A. Hutchins, Natalie R. Cohen, Dawn M. Moran, Korinna Kunde, Maeve C. Lohan, Claire Mahaffey, E. Malcolm S. Woodward, and Mak A. Saito
Biogeosciences, 17, 2537–2551, https://doi.org/10.5194/bg-17-2537-2020, https://doi.org/10.5194/bg-17-2537-2020, 2020
Short summary
Short summary
Trichodesmium is a globally important marine nitrogen fixer that stimulates primary production in the surface ocean. We surveyed metaproteomes of Trichodesmium populations across the North Atlantic and other oceans, and we found that they experience simultaneous phosphate and iron stress because of the biophysical limits of nutrient uptake. Importantly, nitrogenase was most abundant during co-stress, indicating the potential importance of this phenotype to global nitrogen and carbon cycling.
Helmke Hepach, Claire Hughes, Karen Hogg, Susannah Collings, and Rosie Chance
Biogeosciences, 17, 2453–2471, https://doi.org/10.5194/bg-17-2453-2020, https://doi.org/10.5194/bg-17-2453-2020, 2020
Short summary
Short summary
Tropospheric iodine takes part in numerous atmospheric chemical cycles, including tropospheric ozone destruction and aerosol formation. Due to its significance for atmospheric processes, it is crucial to constrain its sources and sinks. This paper aims at investigating and understanding features of biogenic iodate-to-iodide reduction in microalgal monocultures. We find that phytoplankton senescence may play a crucial role in the release of iodide to the marine environment.
Roger D. Finlay, Shahid Mahmood, Nicholas Rosenstock, Emile B. Bolou-Bi, Stephan J. Köhler, Zaenab Fahad, Anna Rosling, Håkan Wallander, Salim Belyazid, Kevin Bishop, and Bin Lian
Biogeosciences, 17, 1507–1533, https://doi.org/10.5194/bg-17-1507-2020, https://doi.org/10.5194/bg-17-1507-2020, 2020
Short summary
Short summary
Effects of biological activity on mineral weathering operate at scales ranging from short-term, microscopic interactions to global, evolutionary timescale processes. Microorganisms have had well-documented effects at large spatio-temporal scales, but to establish the quantitative significance of microscopic measurements for field-scale processes, higher-resolution studies of liquid chemistry at local weathering sites and improved upscaling to soil-scale dissolution rates are still required.
Christine Rooks, James Kar-Hei Fang, Pål Tore Mørkved, Rui Zhao, Hans Tore Rapp, Joana R. Xavier, and Friederike Hoffmann
Biogeosciences, 17, 1231–1245, https://doi.org/10.5194/bg-17-1231-2020, https://doi.org/10.5194/bg-17-1231-2020, 2020
Short summary
Short summary
Sponge grounds are known as nutrient sources, providing nitrate and ammonium to the ocean. We found that they also can do the opposite: in six species from Arctic and North Atlantic sponge grounds, we measured high rates of denitrification, which remove these nutrients from the sea. Rates were highest when the sponge tissue got low in oxygen, which happens when sponges stop pumping because of stress. Sponge grounds may become nutrient sinks when exposed to stress.
Cheng Li, Clare E. Reimers, and Yvan Alleau
Biogeosciences, 17, 597–607, https://doi.org/10.5194/bg-17-597-2020, https://doi.org/10.5194/bg-17-597-2020, 2020
Short summary
Short summary
Novel filamentous cable bacteria that grow in the top layer of intertidal mudflat sediment were attracted to electrodes poised at a positive electrical potential. Several diverse morphologies of Desulfobulbaceae filaments, cells, and colonies were observed on the electrode surface. These observations provide information to suggest conditions that will induce cable bacteria to perform electron donation to an electrode, informing future experiments that culture cable bacteria outside of sediment.
Cited articles
Acevedo-Trejos, E., Maran, E., and Merico, A.: Phytoplankton size diversity
and ecosystem function relationships across oceanic regions, P. Roy. Soc. B-Biol. Sci., 285, 20180621, https://doi.org/10.1098/rspb.2018.0621, 2018.
Aiken, J., Pradhan, Y., Barlow, R., Lavender, S., Poulton, A., Holligan, P.,
and Hardman-mountford, N.: Phytoplankton pigments and functional types in
the Atlantic Ocean: A decadal assessment, 1995–2005, Deep-Sea Res. Pt. II, 56, 899–917,
https://doi.org/10.1016/j.dsr2.2008.09.017, 2009.
Albuquerque, R., Bode, A., González-Gordillo, J. I., Duarte, C. M., and
Queiroga, H.: Trophic Structure of Neuston Across Tropical and Subtropical
Oceanic Provinces Assessed With Stable Isotopes, Front. Mar. Sci.,
7, 606088, https://doi.org/10.3389/fmars.2020.606088, 2021.
Alderkamp, A. C., Garcon, V., de Baar, H. J. W., and Arrigo, K. R.:
Short-term photoacclimation effects on photoinhibition of phytoplankton in
the Drake Passage (Southern Ocean), Deep-Sea Res. Pt. I,
58, 943–955, https://doi.org/10.1016/j.dsr.2011.07.001, 2011.
Anderson, M. J.: A new method for non-parametric multivariate analysis of
variance, Austral Ecol., 26, 32–46,
https://doi.org/10.1046/j.1442-9993.2001.01070.x, 2001.
Armstrong, F. A. J.: The determination of silicate in sea water, J. Mar.
Biol. Assoc. UK, 30, 149–160,
https://doi.org/10.1017/S0025315400012649, 1951.
Baltar, F. and Arístegui, J.: Fronts at the Surface Ocean Can Shape
Distinct Regions of Microbial Activity and Community Assemblages Down to the
Bathypelagic Zone: The Azores Front as a Case Study, Front. Mar. Sci.,
4, 1–13, https://doi.org/10.3389/fmars.2017.00252, 2017.
Baltar, F., Currie, K., Stuck, E., Roosa, S., and Morales, S. E.: Oceanic
fronts: Transition zones for bacterioplankton community composition,
Environ. Microbiol. Rep., 8, 132–138,
https://doi.org/10.1111/1758-2229.12362, 2016.
Behrenfeld, M. J., O'Malley, R. T., Siegel, D. A., McClain, C. R.,
Sarmiento, J. L., Feldman, G. C., Milligan, A. J., Falkowski, P. G.,
Letelier, R. M., and Boss, E. S.: Climate-driven trends in contemporary ocean
productivity, Nature, 444, 752–755,
https://doi.org/10.1038/nature05317, 2006.
Behrenfeld, M. J., Halsey, K. H., and Milligan, A. J.: Evolved physiological
responses of phytoplankton to their integrated growth environment, Philos.
T. Roy. Soc. B, 363, 2687–2703,
https://doi.org/10.1098/rstb.2008.0019, 2008.
Belkin, I. M. and O'Reilly, J. E.: An algorithm for oceanic front detection
in chlorophyll and SST satellite imagery, J. Marine Syst., 78, 319–326,
https://doi.org/10.1016/j.jmarsys.2008.11.018, 2009.
Biers, E. J., Sun, S., and Howard, E. C.: Prokaryotic genomes and diversity
in surface ocean waters: Interrogating the global ocean sampling metagenome,
Appl. Environ. Microb., 75, 2221–2229,
https://doi.org/10.1128/AEM.02118-08, 2009.
Blain, S., Quéguiner, B., Armand, L., Belviso, S., Bombled, B., Bopp,
L., Bowie, A., Brunet, C., Brussaard, C., Carlotti, F., Christaki, U.,
Corbière, A., Durand, I., Ebersbach, F., Fuda, J.-L., Garcia, N.,
Gerringa, L., Griffiths, B., Guigue, C., Guillerm, C., Jacquet, S., Jeandel,
C., Laan, P., Lefèvre, D., Lo Monaco, C., Malits, A., Mosseri, J.,
Obernosterer, I., Park, Y.-H., Picheral, M., Pondaven, P., Remenyi, T.,
Sandroni, V., Sarthou, G., Savoye, N., Scouarnec, L., Souhaut, M., Thuiller,
D., Timmermans, K., Trull, T., Uitz, J., van Beek, P., Veldhuis, M.,
Vincent, D., Viollier, E., Vong, L., and Wagener, T.: Effect of natural iron
fertilization on carbon sequestration in the Southern Ocean, Nature,
446, 1070–1074, https://doi.org/10.1038/nature05700, 2007.
Blain, S., Sarthou, G., and Laan, P.: Distribution of dissolved iron during
the natural iron-fertilization experiment KEOPS (Kerguelen Plateau, Southern
Ocean), Deep-Sea Res. Pt. II, 55, 594–605,
https://doi.org/10.1016/j.dsr2.2007.12.028, 2008.
Boatman, T. G., Davey, P. A., Lawson, T., and Geider, R. J.: The
physiological cost of diazotrophy for Trichodesmium erythraeum IMS101, PLoS
One, 3, 1–24, 2018.
Bokulich, N. A., Kaehler, B. D., Rideout, J. R., Dillon, M., Bolyen, E.,
Knight, R., Huttley, G. A., and Gregory Caporaso, J.: Optimizing taxonomic
classification of marker-gene amplicon sequences with QIIME 2's
q2-feature-classifier plugin, Microbiome, 6, 1–17,
https://doi.org/10.1186/s40168-018-0470-z, 2018.
Boyd, P. W., Watson, A. J., Law, C. S., Abraham, E. R., Trull, T., Murdoch,
R., Bakker, D. C. E., Bowie, A. R., Buesseler, K. O., Chang, H., Charette,
M., Croot, P., Downing, K., Frew, R., Gall, M., Hadfield, M., Hall, J.,
Harvey, M., Jameson, G., LaRoche, J., Liddicoat, M., Ling, R., Maldonado, M.
T., McKay, R. M., Nodder, S., Pickmere, S., Pridmore, R., Rintoul, S., Safi,
K., Sutton, P., Strzepek, R., Tanneberger, K., Turner, S., Waite, A., and
Zeldis, J.: A mesoscale phytoplankton bloom in the polar Southern Ocean
stimulated by iron fertilization, Nature, 407, 695–702,
https://doi.org/10.1038/35037500, 2000.
Breitbarth, E., Oschlies, A., and LaRoche, J.: Physiological constraints on the global distribution of Trichodesmium – effect of temperature on diazotrophy, Biogeosciences, 4, 53–61, https://doi.org/10.5194/bg-4-53-2007, 2007.
Brown, S. L. and Landry, M. R.: Mesoscale variability in biological
community structure and biomass in the Antarctic Polar Front region at
170∘ W during austral spring 1997, J. Geophys. Res.-Ocean.,
106, 13917–13930, https://doi.org/10.1029/1999JC000188, 2001.
Caldeira, K. and Wickett, M.: Ocean model predictions of chemistry changes
from carbon dioxide emissions to the atmosphere and ocean, J. Geophys. Res.-Ocean., 110, 1–12, https://doi.org/10.1029/2004JC002671, 2005.
Callahan, B. J., McMurdie P. J., Rosen, M. J., Han, A. W., Johnson, A. J. A., and Holmes, S. P.: DADA2: High resolution sample inference from Illumina amplicon data, Nat. Methods, 13, 581–583, https://doi.org/10.1038/nmeth.3869, 2016.
Camacho, C., Coulouris, G., Avagyan, V., Ma, N., Papadopoulos, J., Bealer,
K., and Madden, T. L.: BLAST +: architecture and applications, BMC
Bioinformatics, 9, 1–9, https://doi.org/10.1186/1471-2105-10-421, 2009.
Chalup, M. S. and Laws, E. A.: A test of the assumptions and predictions of
recent microalgal growth models with the marine phytoplankter Pavlova
lutheri, Limnol. Oceanogr., 35, 583–596,
https://doi.org/10.4319/lo.1990.35.3.0583, 1990.
Chao, A., Gotelli, N. J., Hsieh, T. C., Sander, E. L., Colwell, R. K., and
Ellison, A. M.: Rarefaction and Extrapolation with Hill Numbers: A Framework
for Sampling and Estimation in Species Diversity Studies, Ecol. Monogr.,
84, 45–67, https://doi.org/10.1890/13-0133.1, 2014.
Chapman, C. C., Lea, M. A., Meyer, A., Sallée, J. B., and Hindell, M.:
Defining Southern Ocean fronts and their influence on biological and
physical processes in a changing climate, Nat. Clim. Change, 10,
209–219, https://doi.org/10.1038/s41558-020-0705-4, 2020.
Constable, A. J., Melbourne-Thomas, J., Corney, S. P., Arrigo, K. R., Barbraud, C., Barnes, D. K. A., Bindoff, N. L., Boyd, P. W., Brandt, A., Costa, D. P., Davidson, A. T., Ducklow, H. W., Emmerson, L., Fukuchi, M., Gutt, J., Hindell, M. A., Hofmann, E. E., Hosie, G. W., Iida, T., Jacob, S., Johnston, N. M., Kawaguchi, S., Kokubun, N., Koubbi, P., Lea, M. A., Makhado, A., Massom, R. A., Meiners, K., Meredith, M. P., Murphy, E. J., Nicol, S., Reid, K., Richerson, K., Riddle, M. J., Rintoul, S. R., Smith, W. O., Southwell, C., Stark, J. S., Sumner, M., Swadling, K. M., Takahashi, K. T., Trathan, P. N., Welsford, D. C., Weimerskirch, H., Westwood, K. J., Wienecke, B. C., Wolf-Gladrow, D., Wright, S. W., Xavier, J. C. and Ziegler, P.: Climate change and Southern Ocean ecosystems I: How changes in physical habitats directly affect marine biota, Glob. Change Biol., 20, 3004–3025, https://doi.org/10.1111/gcb.12623, 2014.
Conway, J. R., Lex, A., and Gehlenborg, N.: UpSetR: An R package for the
visualization of intersecting sets and their properties, Bioinformatics,
33, 2938–2940, https://doi.org/10.1093/bioinformatics/btx364, 2017.
Crawford, D. W., Wyatt, S. N., Wrohan, I. A., Cefarelli, A. O., Giesbrecht,
K. E., Kelly, B., and Varela, D. E.: Low particulate carbon to nitrogen
ratios in marine surface waters of the Arctic, Global Biogeochem. Cy.,
29, 2021–2033, https://doi.org/10.1002/2015GB005200, 2015.
Eichner, M., Kranz, S. A., and Rost, B.: Combined effects of different CO2
levels and N sources on the diazotrophic cyanobacterium Trichodesmium,
Physiol. Plant., 152, 316–330, https://doi.org/10.1111/ppl.12172, 2014.
Evans, C., Thomson, P. G., Davidson, A. T., Bowie, A. R., van den Enden, R.,
Witte, H., and Brussaard, C. P. D.: Potential climate change impacts on
microbial distribution and carbon cycling in the Australian Southern Ocean,
Deep-Sea Res. Pt. II, 58, 2150–2161,
https://doi.org/10.1016/j.dsr2.2011.05.019, 2011.
Fernández-Méndez, M., Turk-Kubo, K. A., Buttigieg, P. L., Rapp, J.
Z., Krumpen, T., Zehr, J. P., and Boetius, A.: Diazotroph diversity in the
sea ice, melt ponds, and surface waters of the eurasian basin of the Central
Arctic Ocean, Front. Microbiol., 7, 1–18,
https://doi.org/10.3389/fmicb.2016.01884, 2016.
Fernandez, C., Farías, L., and Ulloa, O.: Nitrogen fixation in
denitrified marine waters, PLoS One, 6, 20539,
https://doi.org/10.1371/journal.pone.0020539, 2011.
Gallet, A., Koubbi, P., Léger, N., Scheifler, M., Ruiz-Rodriguez, M.,
Suzuki, M. T., Desdevises, Y., and Duperron, S.: Low-diversity bacterial
microbiota in Southern Ocean representatives of lanternfish genera
Electrona, Protomyctophum and Gymnoscopelus (family Myctophidae), PLoS One,
14, 1–17, https://doi.org/10.1371/journal.pone.0226159, 2019.
Geider, R. J.: Light and Temperature Dependence of the Carbon to Chlorophyll
a Ratio in Microalgae and Cyanobacteria: Implications for Physiology and
Growth of Phytoplankton, New Phytol., 106, 1–34,
https://doi.org/10.1111/j.1469-8137.1987.tb04788.x, 1987.
Georgieva, M. N., Taboada, S., Riesgo, A., Díez-Vives, C., De Leo, F.
C., Jeffreys, R. M., Copley, J. T., Little, C. T. S., Ríos, P.,
Cristobo, J., Hestetun, J. T., and Glover, A. G.: Evidence of Vent-Adaptation
in Sponges Living at the Periphery of Hydrothermal Vent Environments:
Ecological and Evolutionary Implications, Front. Microbiol., 11, 1636,
https://doi.org/10.3389/fmicb.2020.01636, 2020.
Giebel, H. A., Brinkhoff, T., Zwisler, W., Selje, N., and Simon, M.:
Distribution of Roseobacter RCA and SAR11 lineages and distinct bacterial
communities from the subtropics to the Southern Ocean, Environ. Microbiol.,
11, 2164–2178, https://doi.org/10.1111/j.1462-2920.2009.01942.x, 2009.
Gloor, G. B., Macklaim, J. M., Pawlowsky-Glahn, V., and Egozcue, J. J.:
Microbiome datasets are compositional: And this is not optional, Front.
Microbiol., 8, 1–6, https://doi.org/10.3389/fmicb.2017.02224, 2017.
González, M. L., Molina, V., Florez-Leiva, L., Oriol, L., Cavagna, A. J., Dehairs, F., Farias, L., and Fernandez, C.: Nitrogen fixation in the Southern Ocean: a case of study of the Fe-fertilized Kerguelen region (KEOPS II cruise), Biogeosciences Discuss., 11, 17151–17185, https://doi.org/10.5194/bgd-11-17151-2014, 2014.
Gradoville, M. R., Bombar, D., Crump, B. C., Letelier, R. M., Zehr, J. P.,
and White, A. E.: Diversity and activity of nitrogen-fixing communities
across ocean basins, Limnol. Oceanogr., 62, 1895–1909,
https://doi.org/10.1002/lno.10542, 2017.
Guillou, L., Bachar, D., Audic, S., Bass, D., Berney, C., Bittner, L.,
Boutte, C., Burgaud, G., De Vargas, C., Decelle, J., Del Campo, J., Dolan,
J. R., Dunthorn, M., Edvardsen, B., Holzmann, M., Kooistra, W. H. C. F.,
Lara, E., Le Bescot, N., Logares, R., Mahé, F., Massana, R., Montresor,
M., Morard, R., Not, F., Pawlowski, J., Probert, I., Sauvadet, A. L., Siano,
R., Stoeck, T., Vaulot, D., Zimmermann, P., and Christen, R.: The Protist
Ribosomal Reference database (PR2): A catalog of unicellular eukaryote Small
Sub-Unit rRNA sequences with curated taxonomy, Nucleic Acids Res., 41,
597–604, https://doi.org/10.1093/nar/gks1160, 2013.
Hager, S. W., Harmon, D. D., and Alpine, A. E.: Chemical Determination of
Particulate Nitrogen in San Francisco Bay. Nitrogen Chlorophyll a Ratios in
Plankton, Estuar. Coast. Shelf S., 19, 193–204,
https://doi.org/10.1016/0272-7714(84)90064-7, 1984.
Halm, H., Lam, P., Ferdelman, T. G., Lavik, G., Dittmar, T., Laroche, J.,
D'Hondt, S., and Kuypers, M. M. M.: Heterotrophic organisms dominate nitrogen
fixation in the south pacific gyre, ISME J., 6, 1238–1249,
https://doi.org/10.1038/ismej.2011.182, 2012.
Han, D., Kang, H. Y., Kang, C. K., Unno, T., and Hur, H. G.: Seasonal
Mixing-Driven System in Estuarine–Coastal Zone Triggers an Ecological Shift
in Bacterial Assemblages Involved in Phytoplankton-Derived DMSP Degradation,
Microb. Ecol., 79, 12–20, https://doi.org/10.1007/s00248-019-01392-w,
2020.
Hanson, C. A., Fuhrman, J. A., Horner-Devine, M. C., and Martiny, J. B. H.:
Beyond biogeographic patterns: Processes shaping the microbial landscape,
Nat. Rev. Microbiol., 10, 497–506, https://doi.org/10.1038/nrmicro2795,
2012.
Hernando-Morales, V., Ameneiro, J., and Teira, E.: Water mass mixing shapes
bacterial biogeography in a highly hydrodynamic region of the Southern
Ocean, Environ. Microbiol., 19, 1017–1029,
https://doi.org/10.1111/1462-2920.13538, 2017.
Hirata, T., Hardman-Mountford, N. J., Brewin, R. J. W., Aiken, J., Barlow, R., Suzuki, K., Isada, T., Howell, E., Hashioka, T., Noguchi-Aita, M., and Yamanaka, Y.: Synoptic relationships between surface Chlorophyll-a and diagnostic pigments specific to phytoplankton functional types, Biogeosciences, 8, 311–327, https://doi.org/10.5194/bg-8-311-2011, 2011.
Hörstmann, C.: CoraHoerstmann/MD206_Microbes: (Version 2.0), Zenodo, https://doi.org/10.5281/zenodo.5000001, 2021.
Hörstmann, C., Raes, E. J., and Waite, A. M.: Nitrogen and carbon processes in the South Indian Ocean and the French Southern and Antarctic Lands, PANGAEA, https://doi.org/10.1594/PANGAEA.885896, 2018.
Holm, S.: Board of the Foundation of the Scandinavian Journal of Statistics,
Scand. J. Stat., 6, 65–70, 1979.
Karl, D., Michaels, A., Bergman, B., Capone, D. G., Carpenter, E. J.,
Letelier, R., Lipschultz, F., Paerl, H., Sigman, D., and Stal, L.: Dinitrogen
fixation in the world's oceans, Biogeochemistry, 57–58, 47–98,
https://doi.org/10.1023/A:1015798105851, 2002.
Kérouel, R. and Aminot, A.: Fluorometric determination of ammonia in sea
and estuarine waters by direct segmented flow analysis, Mar. Chem.,
57, 265–275, https://doi.org/10.1016/S0304-4203(97)00040-6, 1997.
Kilias, E., Wolf, C., Nöthig, E. M., Peeken, I., and Metfies, K.: Protist
distribution in the Western Fram Strait in summer 2010 based on
454-pyrosequencing of 18S rDNA, J. Phycol., 49, 996–1010,
https://doi.org/10.1111/jpy.12109, 2013.
Klawonn, I., Lavik, G., Böning, P., Marchant, H. K., Dekaezemacker, J.,
Mohr, W., and Ploug, H.: Simple approach for the preparation of
15−15N2-enriched water for nitrogen fixation assessments: Evaluation,
application and recommendations, Front. Microbiol., 6, 1–11,
https://doi.org/10.3389/fmicb.2015.00769, 2015.
Knap, A., Michaels, A., Close, A., Ducklow, H., and Dickson, A.: Protocols
for the Joint Global Ocean Flux Study (JGFOS) Core Measurements, JGOFS
Reoprt Nr. 19, vi+170 pp., (Reprint of IOC MAnuals and Guides 29, UNESCO
1994), 198, http://hdl.handle.net/11329/220 (last access: 20 June 2021), 1996.
Knapp, A. N.: The sensitivity of marine N2 fixation to dissolved inorganic
nitrogen, Front. Microbiol., 3, 1–14,
https://doi.org/10.3389/fmicb.2012.00374, 2012.
Laubscher, R. K., Perissinotto, R., and McQuaid, C. D.: Phytoplankton
Production and Biomass at Frontal Zones in the Atlantic Sector of the
Southern-Ocean, Polar Biol., 13, 471–481,
https://doi.org/10.1007/BF00233138, 1993.
Le Fèvre, J.: Aspects of the Biology of Frontal Systems, in: Advances in
Marine Biology, Vol. 23, edited by: Blaxter, J. H. S. and Southward, A. J.,
163–299, Academic Press INC. (London) LTD,
https://doi.org/10.1016/S0065-2881(08)60109-1, 1987.
Lo Monaco, C., Álvarez, M., Key, R. M., Lin, X., Tanhua, T., Tilbrook, B., Bakker, D. C. E., van Heuven, S., Hoppema, M., Metzl, N., Ríos, A. F., Sabine, C. L., and Velo, A.: Assessing the internal consistency of the CARINA database in the Indian sector of the Southern Ocean, Earth Syst. Sci. Data, 2, 51–70, https://doi.org/10.5194/essd-2-51-2010, 2010.
Longhurst, A.: Ecological Geography of the sea, 2nd Edn., Academic Press, London,
2007.
Luo, Y.-W., Doney, S. C., Anderson, L. A., Benavides, M., Berman-Frank, I., Bode, A., Bonnet, S., Boström, K. H., Böttjer, D., Capone, D. G., Carpenter, E. J., Chen, Y. L., Church, M. J., Dore, J. E., Falcón, L. I., Fernández, A., Foster, R. A., Furuya, K., Gómez, F., Gundersen, K., Hynes, A. M., Karl, D. M., Kitajima, S., Langlois, R. J., LaRoche, J., Letelier, R. M., Marañón, E., McGillicuddy Jr., D. J., Moisander, P. H., Moore, C. M., Mouriño-Carballido, B., Mulholland, M. R., Needoba, J. A., Orcutt, K. M., Poulton, A. J., Rahav, E., Raimbault, P., Rees, A. P., Riemann, L., Shiozaki, T., Subramaniam, A., Tyrrell, T., Turk-Kubo, K. A., Varela, M., Villareal, T. A., Webb, E. A., White, A. E., Wu, J., and Zehr, J. P.: Database of diazotrophs in global ocean: abundance, biomass and nitrogen fixation rates, Earth Syst. Sci. Data, 4, 47–73, https://doi.org/10.5194/essd-4-47-2012, 2012.
Malviya, S., Scalco, E., Audic, S., Vincent, F., Veluchamy, A., Poulain, J.,
Wincker, P., Iudicone, D., de Vargas, C., Bittner, L., Zingone, A., and
Bowler, C.: Insights into global diatom distribution and diversity in the
world's ocean, P. Natl. Acad. Sci. USA, 113, E1516–E1525,
https://doi.org/10.1073/pnas.1509523113, 2016.
Martiny, J. B. H., Bohannan, B. J. M., Brown, J. H., Kane, M., Krumins, J.
A., Kuske, C. R., Morin, P. J., Naeem, S., Øvreås, L., Reysenbach, A.,
and Smith, V. H.: Microbial biogeography: putting microorganisms on the
map, Nature, 4, 102–112, https://doi.org/10.1038/nrmicro1341,
2006.
Metzl, N. and Lo Monaco, C.: VT 153/OISO-27 cruise, RV Marion Dufresne, https://doi.org/10.17600/17009700, 2017.
Milici, M., Tomasch, J., Wos-Oxley, M. L., Decelle, J., Jáuregui, R.,
Wang, H., Deng, Z. L., Plumeier, I., Giebel, H. A., Badewien, T. H., Wurst,
M., Pieper, D. H., Simon, M., and Wagner-Döbler, I.: Bacterioplankton
biogeography of the Atlantic ocean: A case study of the distance-decay
relationship, Front. Microbiol., 7, 1–15,
https://doi.org/10.3389/fmicb.2016.00590, 2016.
Mohr, W., Großkopf, T., Wallace, D. W. R., and LaRoche, J.:
Methodological underestimation of oceanic nitrogen fixation rates, PLoS One,
5, 1–7, https://doi.org/10.1371/journal.pone.0012583, 2010.
Mongin, M., Molina, E., and Trull, T. W.: Seasonality and scale of the
Kerguelen plateau phytoplankton bloom: A remote sensing and modeling
analysis of the influence of natural iron fertilization in the Southern
Ocean, Deep-Sea Res. Pt. II, 55, 880–892,
https://doi.org/10.1016/j.dsr2.2007.12.039, 2008.
Montoya, J. P., Voss, M., Kahler, P., and Capone, D. G.: A Simple,
High-Precision, High-Sensitivity Tracer Assay for N2 Fixation, Appl.
Environ. Microb., 62, 986–993,
https://doi.org/10.1128/AEM.62.3.986-993.1996, 1996.
Murphy, J. and Riley, J.: A modified single solution method for the
determination of phosphate in natural waters, Anal. Chem. ACTA, 27, 31–36,
https://doi.org/10.1016/S0003-2670(00)88444-5, 1962.
Padgham, M., Sumner, M. D., and Karney, C. F. F.: geodist R pacakge version
0.0.4, GitHub, https://github.com/hypertidy/geodist (last access: 20 June 2021), 2020.
Parada, A. E., Needham, D. M., and Fuhrman, J. A.: Every base matters:
Assessing small subunit rRNA primers for marine microbiomes with mock
communities, time series and global field samples, Environ. Microbiol.,
18, 1403–1414, https://doi.org/10.1111/1462-2920.13023, 2016.
Partensky, F., Blanchot, J., and Vaulot, D.: Differential distribution and
ecology of Prochlorococcus and Synechococcus in oceanic waters: a review,
Bull. l'Institut océanographique, 19, 457–475, 1999.
Pinhassi, J., Sala, M. M., Havskum, H., Peters, F., Guadayol, Ò.,
Malits, A., and Marrasé, C.: Changes in bacterioplankton composition
under different phytoplankton regimens, Appl. Environ. Microb., 70,
6753–6766, https://doi.org/10.1128/AEM.70.11.6753-6766.2004, 2004.
Pruesse, E., Peplies, J., Glöckner, F. O., Editor, A., and Wren, J.:
SINA: Accurate high-throughput multiple sequence alignment of ribosomal RNA
genes, 28, 1823–1829, https://doi.org/10.1093/bioinformatics/bts252,
2012.
Quast, C., Pruesse, E., Yilmaz, P., Gerken, J., Schweer, T., Glo, F. O., and
Yarza, P.: The SILVA ribosomal RNA gene database project: improved data
processing and web-based tools, Nucleic Acids Res., 41, D590–D596,
https://doi.org/10.1093/nar/gks1219, 2013.
Raes, E. J., Waite, A. M., McInnes, A. S., Olsen, H., Nguyen, H. M.,
Hardman-Mountford, N., and Thompson, P. A.: Changes in latitude and dominant
diazotrophic community alter N2 fixation, Mar. Ecol.-Prog. Ser., 516,
85–102, https://doi.org/10.3354/meps11009, 2014.
Raes, E. J., Thompson, P. A., McInnes, A. S., Nguyen, H. M.,
Hardman-mountford, N., and Waite, A. M.: Sources of new nitrogen in the
Indian Ocean, Global Biogeochem. Cy., 935, 1283–1297,
https://doi.org/10.1002/2015GB005194, 2015.
Raes, E. J., Bodrossy, L., Kamp, J. Van De, Bissett, A., Ostrowski, M., and
Brown, M. V: Oceanographic boundaries constrain microbial diversity
gradients in the South Pacific Ocean, P. Natl. Acad. Sci. USA, 115, E8266–E8275,
https://doi.org/10.1073/pnas.1719335115, 2018.
Raes, E. J., Kamp, J. Van De, Bodrossy, L., Fong, A. A., Riekenberg, J.,
Holmes, B. H., Erler, D. V, Eyre, B. D., Weil, S., and Waite, A. M.: N 2
Fixation and New Insights Into Nitrification From the Ice-Edge to the
Equator in the South Pacific Ocean, 7, 1–20,
https://doi.org/10.3389/fmars.2020.00389, 2020.
Ras, J., Claustre, H., and Uitz, J.: Spatial variability of phytoplankton pigment distributions in the Subtropical South Pacific Ocean: comparison between in situ and predicted data, Biogeosciences, 5, 353–369, https://doi.org/10.5194/bg-5-353-2008, 2008.
R Core Team: R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria, available at: https://www.R-project.org/ (last access: 20 June 2021), 2020.
Sambrotto, R. N. and Mace, B. J.: Coupling of biological and physical
regimes across the Antarctic Polar Front as reflected by nitrogen production
and recycling, Deep-Sea Res. Pt. II, 47, 3339–3367,
https://doi.org/10.1016/S0967-0645(00)00071-0, 2000.
Sarmento, H. and Gasol, J. M.: Use of phytoplankton-derived dissolved
organic carbon by different types of bacterioplankton, Environ. Microbiol.,
14, 2348–2360, https://doi.org/10.1111/j.1462-2920.2012.02787.x, 2012.
Shiozaki, T., Bombar, D., Riemann, L., Hashihama, F., Takeda, S., Yamaguchi,
T., Ehama, M., Hamasaki, K., and Furuya, K.: Basin scale variability of
active diazotrophs and nitrogen fixation in the North Pacific, from the
tropics to the subarctic Bering Sea, Global Biogeochem. Cy., 31,
996–1009, https://doi.org/10.1002/2017GB005681, 2017.
Shiozaki, T., Fujiwara, A., Ijichi, M., Harada, N., Nishino, S., Nishi, S.,
Nagata, T., and Hamasaki, K.: Diazotroph community structure and the role of
nitrogen fixation in the nitrogen cycle in the Chukchi Sea (western Arctic
Ocean), Limnol. Oceanogr., 63, 2191–2205, https://doi.org/10.1002/lno.10933, 2018.
Sipler, R. E., Gong, D., Baer, S. E., Sanderson, M. P., Roberts, Q. N.,
Mulholland, M. R., and Bronk, D. A.: Preliminary estimates of the
contribution of Arctic nitrogen fixation to the global nitrogen budget,
Limnol. Oceanogr. Lett., 159–166, https://doi.org/10.1002/lol2.10046, 2017.
Stoeck, T., Bass, D., Nebel, M., Christen, R., and Meredith, D.: Multiple
marker parallel tag environmental DNA sequencing reveals a highly complex
eukaryotic community in marine anoxic water, Mol. Ecol., 19, 21–31,
https://doi.org/10.1111/j.1365-294X.2009.04480.x, 2010.
Strass, V. H., Naveira Garabato, A. C., Pollard, R. T., Fischer, H. I.,
Hense, I., Allen, J. T., Read, J. F., Leach, H., and Smetacek, V.: Mesoscale
frontal dynamics: Shaping the environment of primary production in the
Antarctic Circumpolar Current, Deep-Sea Res. Pt. II,
49, 3735–3769, https://doi.org/10.1016/S0967-0645(02)00109-1, 2002.
Swart, N. C., Gille, S. T., Fyfe, J. C., and Gillett, N. P.: Recent Southern
Ocean warming and freshening driven by greenhouse gas emissions and ozone
depletion, Nat. Geosci., 11, 836–841,
https://doi.org/10.1038/s41561-018-0226-1, 2018.
Talaber, I., Francé, J., Flander-Putrle, V., and Mozetič, P.: Primary
production and community structure of coastal phytoplankton in the Adriatic
Sea: Insights on taxon-specific productivity, Mar. Ecol.-Prog. Ser., 604,
65–81, https://doi.org/10.3354/meps12721, 2018.
Tang, W., Li, Z., and Cassar, N.: Machine Learning Estimates of Global Marine
Nitrogen Fixation, J. Geophys. Res.-Biogeo., 2012, 717–730,
https://doi.org/10.1029/2018JG004828, 2019.
Teeling, H., Fuchs, B. M., Becher, D., Klockow, C., Gardebrecht, A., Bennke,
C. M., Kassabgy, M., Huang, S., Mann, A. J., Waldmann, J., Weber, M.,
Klindworth, A., Otto, A., Lange, J., Bernhardt, J., Reinsch, C., Hecker, M.,
Peplies, J., Bockelmann, F. D., Callies, U., Gerdts, G., Wichels, A.,
Wiltshire, K. H., Glöckner, F. O., Schweder, T., and Amann, R.:
Substrate-Controlled Succession of Marine Bacterioplankton Populations
Induced by a Phytoplankton Bloom, Science, 336, 608–611,
https://doi.org/10.1126/science.1218344, 2012.
Townsend, D. W. and Pettigrew, N. R.: Nitrogen limitation of secondary
production on Georges Bank, J. Plankton Res., 19, 221–235, 1997.
Uitz, J., Claustre, H., Morel, A., and Hooker, S. B.: Vertical distribution
of phytoplankton communities in open ocean: An assessment based on surface
chlorophyll, J. Geophys. Res.-Ocean., 111, C08005,
https://doi.org/10.1029/2005JC003207, 2006.
Vallina, S. M., Follows, M. J., Dutkiewicz, S., Montoya, J. M., Cermeno, P.
and Loreau, M.: Global relationship between phytoplankton diversity and
productivity in the ocean, Nat. Commun., 5, 1–10,
https://doi.org/10.1038/ncomms5299, 2014.
Vidussi, F., Claustre, H., Manca, B. B., Luchetta, A., and Marty, J.-C.:
Phytoplankton pigment distribution in relation to upper thermocline
circulation in the eastern Mediterranean Sea during winter, J. Geophys.
Res., 106, 939–956, https://doi.org/10.1029/1999JC000308, 2001.
Waite, A. M., Muhling, B. A., Holl, C. M., Beckley, L. E., Montoya, J. P.,
Strzelecki, J., Thompson, P. A., and Pesant, S.: Food web structure in two
counter-rotating eddies based on δ15N and δ13C isotopic
analyses, Deep-Sea Res. Pt. II, 54, 1055–1075,
https://doi.org/10.1016/j.dsr2.2006.12.010, 2007.
Wilkins, D., Lauro, F. M., Williams, T. J., Demaere, M. Z., Brown, M. V.,
Hoffman, J. M., Andrews-Pfannkoch, C., Mcquaid, J. B., Riddle, M. J.,
Rintoul, S. R., and Cavicchioli, R.: Biogeographic partitioning of Southern
Ocean microorganisms revealed by metagenomics, Environ. Microbiol., 15,
1318–1333, https://doi.org/10.1111/1462-2920.12035, 2013a.
Wilkins, D., Yau, S., Williams, T. J., Allen, M. A., Brown, M. V., Demaere,
M. Z., Lauro, F. M., and Cavicchioli, R.: Key microbial drivers in Antarctic
aquatic environments, FEMS Microbiol. Rev., 37, 303–335,
https://doi.org/10.1111/1574-6976.12007, 2013b.
Wood, E. D., Armstrong, F. A. J., and Richards, F. A.: Determination of
nitrate in sea water by cadmium-copper reduction to nitrite, J. Mar. Biol.
Assoc. UK, 47, 23–31,
https://doi.org/10.1017/S002531540003352X, 1967.
Yang, H., Lohmann, G., Krebs-Kanzow, U., Ionita, M., Shi, X., Sidorenko, D.,
Gong, X., Chen, X., and Gowan, E. J.: Poleward Shift of the Major Ocean Gyres
Detected in a Warming Climate, Geophys. Res. Lett., 47, e2019GL085868,
https://doi.org/10.1029/2019GL085868, 2020.
Download
The requested paper has a corresponding corrigendum published. Please read the corrigendum first before downloading the article.
- Article
(1853 KB) - Full-text XML
- Corrigendum
-
Supplement
(12450 KB) - BibTeX
- EndNote
Short summary
Microbes are the main drivers of productivity and nutrient cycling in the ocean. We present a combined approach assessing C and N uptake and microbial community diversity across ecological provinces in the Southern Ocean and southern Indian Ocean. Provinces showed distinct genetic fingerprints, but microbial activity varied gradually across regions, correlating with nutrient concentrations. Our study advances the biogeographic understanding of microbial diversity across C and N uptake regimes.
Microbes are the main drivers of productivity and nutrient cycling in the ocean. We present a...
Altmetrics
Final-revised paper
Preprint