Articles | Volume 10, issue 4
https://doi.org/10.5194/bg-10-2747-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-10-2747-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
25 Apr 2013
Research article |
| 25 Apr 2013
Spatial variability of particle-attached and free-living bacterial diversity in surface waters from the Mackenzie River to the Beaufort Sea (Canadian Arctic)
E. Ortega-Retuerta
UPMC Univ Paris 06, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
CNRS, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
present address: Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar-CSIC, Barcelona, Spain
F. Joux
UPMC Univ Paris 06, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
CNRS, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
W. H. Jeffrey
Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FL, USA
J. F. Ghiglione
UPMC Univ Paris 06, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
CNRS, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
Cora Hörstmann, Eric J. Raes, Pier Luigi Buttigieg, Claire Lo Monaco, Uwe John, and Anya M. Waite
Biogeosciences, 18, 3733–3749, https://doi.org/10.5194/bg-18-3733-2021, https://doi.org/10.5194/bg-18-3733-2021, 2021
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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.
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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.
Cited articles
Acinas, S. G., Rodriguez-Valera, F., and Pedrós-Alió, C.: Spatial and temporal variation in marine bacterioplankton diversity as shown by RFLP fingerprinting of PCR amplified 16S rDNA, FEMS Microbiol. Ecol., 24, 27–40, https://doi.org/10.1111/j.1574-6941.1997.tb00420.x, 1997.
Acinas, S. G., Antón, J., and Rodríguez-Valera, F.: Diversity of free-living and attached bacteria in offshore Western Mediterranean waters as depicted by analysis of genes encoding 16S rRNA, Appl. Environ. Microbiol., 65, 514–522, 1999.
Arrigo, K. R. and van Dijken, G. L.: Annual cycles of sea ice and phytoplankton in Cape Bathurst polynya, southeastern Beaufort Sea, Canadian Arctic, Geophys. Res. Lett., 31, L08304, https://doi.org/10.1029/2003gl018978, 2004.
Arrigo, K. R. and van Dijken, G. L.: Secular trends in Arctic Ocean net primary production, J. Geophys. Res.-Oceans, 116, C09011, https://doi.org/10.1029/2011jc007151, 2011.
Azam, F. and Malfatti, F.: Microbial structuring of marine ecosystems, Nat. Rev. Micro., 5, 782–791, 2007.
Azam, F., Smith, D. C., Steward, G. F., and Hagstrom, A.: Bacteria-organic matter coupling and its significance for oceanic carbon cycling Microb. Ecol., 28, 167–179, https://doi.org/10.1007/bf00166806, 1994.
Berdjeb, L., Ghiglione, J.-F., and Jacquet, S.: Bottom-up versus top-down control of hypo- and epilimnion Ffree-living bacterial community structures in two neighboring freshwater lakes, Appl. Environ. Microbiol., 77, 3591–3599, https://doi.org/10.1128/aem.02739-10, 2011.
Blais, M., Tremblay, J.-r., Jungblut, A. D., Gagnon, J., Martin, J., Thaler, M., and Lovejoy, C.: Nitrogen fixation and identification of potential diazotrophs in the Canadian Arctic, Global Biogeochem. Cy., 26, GB3022, https://doi.org/10.1029/2011gb004096, 2012.
Boeuf, D., Cottrell, M. T., Kirchman, D. L., Lebaron, P., and Jeanthon, C.: Summer community structure of aerobic anoxygenic phototrophic bacteria in the western Arctic Ocean, FEMS Microbiol. Ecol., in press, 2013.
Campbell, B. J. and Kirchman, D. L.: Bacterial diversity, community structure and potential growth rates along an estuarine salinity gradient, ISME J., 7, 10–220, 2012.
Caporaso, J. G., Bittinger, K., Bushman, F. D., DeSantis, T. Z., Andersen, G. L., and Knight, R.: PyNAST: a flexible tool for aligning sequences to a template alignment, Bioinformatics, 26, 266–267, https://doi.org/10.1093/bioinformatics/btp636, 2010.
Corell, R. W. and Cleveland, C.: Arctic Climate Impact Assessment (ACIA), in: Encyclopedia of Earth, edited by: Cleveland, C. J., Environmental Information Coalition, National Council for Science and the Environment, Washington, DC, 2010.
Crespo, B. G., Pommier, T., Fernández-Gómez, B., and Pedrós-Alió, C. Taxonomic composition of the particle attached and free-living bacterial assemblages in the Northwest Mediterranean Sea analyzed by pyrosequencing of the 16S rRNA, FEMS Microbiol. Ecol., in press, https://doi.org/10.1111/1574-6941.12130, 2013.
Crump, B. C., Baross, J. A., and Simenstad, C. A.: Dominance of particle-attached bacteria in the Columbia River estuary, USA, Aquat. Microb. Ecol., 14, 7–18, 1998.
Crump, B. C., Armbrust, E. V., and Baross, J. A.: Phylogenetic analysis of particle-attached and free-living bacterial communities in the Columbia river, its estuary, and the adjacent coastal ocean, Appl. Environ. Microbiol., 65, 3192–3204, 1999.
Dittmar, T. and Kattner, G.: The biogeochemistry of the river and shelf ecosystem of the Arctic Ocean: a review, Mar. Chem., 83, 103–120, https://doi.org/10.1016/s0304-4203(03)00105-1, 2003.
Doxaran, D., Ehn, J., Bélanger, S., Matsuoka, A., Hooker, S., and Babin, M.: Optical characterisation of suspended particles in the Mackenzie River plume (Canadian Arctic Ocean) and implications for ocean colour remote sensing, Biogeosciences, 9, 3213–3229, https://doi.org/10.5194/bg-9-3213-2012, 2012.
Edgar, R. C.: Search and clustering orders of magnitude faster than BLAST, Bioinformatics, 26, 2460–2461, https://doi.org/10.1093/bioinformatics/btq461, 2010.
Eloe, E. A., Shulse, C. N., Fadrosh, D. W., Williamson, S. J., Allen, E. E., and Bartlett, D. H.: Compositional differences in particle-associated and free-living microbial assemblages from an extreme deep-ocean environment, Environ. Microbiol. Rep., 3, 449–458, https://doi.org/10.1111/j.1758-2229.2010.00223.x, 2011.
Forest, A., Sampei, M., Makabe, R., Sasaki, H., Barber, D. G., Gratton, Y., Wassmann, P., and Fortier, L.: The annual cycle of particulate organic carbon export in Franklin Bay (Canadian Arctic): Environmental control and food web implications, J. Geophys. Res.-Oceans, 113, C03505, https://doi.org/10.1029/2007jc004262, 2008.
Forest, A., Babin, M., Stemmann, L., Picheral, M., Sampei, M., Fortier, L., Gratton, Y., Bélanger, S., Devred, E., Sahlin, J., Doxaran, D., Joux, F., Ortega-Retuerta, E., Jeffrey, W. H., Martín, J., Gasser, B., and Miquel, J. C.: Ecosystem function and particle flux dynamics across the Mackenzie Shelf (Beaufort Sea, Arctic Ocean): an integrative analysis of spatial variability and biophysical forcings, Biogeosciences Discuss., 9, 10883–10960, https://doi.org/10.5194/bgd-9-10883-2012, 2012.
Fuchsman, C. A., Kirkpatrick, J. B., Brazelton, W. J., Murray, J. W., and Staley, J. T.: Metabolic strategies of free-living and aggregate-associated bacterial communities inferred from biologic and chemical profiles in the Black Sea suboxic zone, FEMS Microbiol.Ecol., 78, 586–603, 2012.
Galand, P. E., Lovejoy, C., Pouliot, J., Garneau, M. E., and Vincent, W. F.: Microbial community diversity and heterotrophic production in a coastal Arctic ecosystem: A stamukhi lake and its source waters, Limnol. Oceanogr., 53, 813–823, https://doi.org/10.4319/lo.2008.53.2.0813, 2008.
Garneau, M. E., Vincent, W. F., Alonso-Saez, L., Gratton, Y., and Lovejoy, C.: Prokaryotic community structure and heterotrophic production in a river-influenced coastal arctic ecosystem, Aquat. Microb. Ecol., 42, 27–40, https://doi.org/10.3354/ame042027, 2006.
Garneau, M. E., Vincent, W. F., Terrado, R., and Lovejoy, C.: Importance of particle-associated bacterial heterotrophy in a coastal Arctic ecosystem, J. Mar. Syst., 75, 185–197, https://doi.org/10.1016/j.jmarsys.2008.09.002, 2009.
Ghiglione, J. F. and Murray, A. E.: Pronounced summer to winter differences and higher wintertime richness in coastal Antarctic marine bacterioplankton, Environ. Microbiol., 14, 617–629, https://doi.org/10.1111/j.1462-2920.2011.02601.x, 2012.
Ghiglione, J. F., Larcher, M., and Lebaron, P.: Spatial and temporal scales of variation in bacterioplankton community structure in the NW Mediterranean Sea, Aquat. Microb. Ecol., 40, 229–240, https://doi.org/10.3354/ame040229, 2005.
Ghiglione, J. F., Mevel, G., Pujo-Pay, M., Mousseau, L., Lebaron, P., and Goutx, M.: Diel and seasonal variations in abundance, activity, and community structure of particle-attached and free-living bacteria in NW Mediterranean Sea, Microb. Ecol., 54, 217–231, 2007.
Ghiglione, J. F., Palacios, C., Marty, J. C., Mével, G., Labrune, C., Conan, P., Pujo-Pay, M., Garcia, N., and Goutx, M.: Role of environmental factors for the vertical distribution (0–1000 m) of marine bacterial communities in the NW Mediterranean Sea, Biogeosciences, 5, 1751–1764, https://doi.org/10.5194/bg-5-1751-2008, 2008.
Ghiglione, J. F., Conan, P., and Pujo-Pay, M.: Diversity of total and active free-living vs. particle-attached bacteria in the euphotic zone of the NW Mediterranean Sea, FEMS Microbiol. Lett., 299, 9–21, https://doi.org/10.1111/j.1574-6968.2009.01694.x, 2009.
Ghiglione, J.-F., Galand, P. E., Pommier, T., Pedrós-Alió, C., Maas, E. W., Bakker, K., Bertilson, S., Kirchman, D. L., Lovejoy, C., Yager, P. L., and Murray, A. E.: Pole-to-pole biogeography of surface and deep marine bacterial communities, Proc. Natl. Acad. Sci., 109, 17633–17638, https://doi.org/10.1073/pnas.1208160109, 2012.
Gilbert, J. A., Field, D., Swift, P., Newbold, L., Oliver, A., Smyth, T., Somerfield, P. J., Huse, S., and Joint, I.: The seasonal structure of microbial communities in the Western English Channel, Environ. Microbiol., 11, 3132–3139, https://doi.org/10.1111/j.1462-2920.2009.02017.x, 2009.
Ginige, M. P., Hugenholtz, P., Daims, H., Wagner, M., Keller, J., and Blackall, L. L.: Use of stable-isotope probing, full-cycle rRNA analysis, and fluorescence in situ hybridization-microautoradiography to study a methanol-fed denitrifying microbial community, Appl. Environ. Microbiol., 70, 588–596, https://doi.org/10.1128/aem.70.1.588-596.2004, 2004.
Guo, L. D. and Macdonald, R. W.: Source and transport of terrigenous organic matter in the upper Yukon River: Evidence from isotope (delta C-13, Delta C-14, and delta N-15) composition of dissolved, colloidal, and particulate phases, Glob. Biogeochem. Cy., 20, GB2011, https://doi.org/10.1029/2005gb002593, 2006.
Hodges, L. R., Bano, N., Hollibaugh, J. T., and Yager, P. L.: Illustrating the importance of particulate organic matter to pelagic microbial abundance and community structure – an Arctic case study, Aquat. Microb. Ecol., 40, 217–227, https://doi.org/10.3354/ame040217, 2005.
Hollibaugh, J. T., Wong, P. S., and Murrell, M. C.: Similarity of particle-associated and free-living bacterial communities in northern San Francisco Bay, California, Aquat. Microb. Ecol., 21, 103–114, https://doi.org/10.3354/ame021103, 2000.
Holmfeldt, K., Dziallas, C., Titelman, J., Pohlmann, K., Grossart, H. P., and Riemann, L.: Diversity and abundance of freshwater Actinobacteria along environmental gradients in the brackish northern Baltic Sea, Environ. Microbiol., 11, 2042–2054, https://doi.org/10.1111/j.1462-2920.2009.01925.x, 2009.
Huse, S. M., Welch, D. M., Morrison, H. G., and Sogin, M. L.: Ironing out the wrinkles in the rare biosphere through improved OTU clustering, Environ. Microbiol., 12, 1889–1898, https://doi.org/10.1111/j.1462-2920.2010.02193.x, 2010.
Ishii, S., Yamamoto, M., Kikuchi, M., Oshima, K., Hattori, M., Otsuka, S., and Senoo, K.: Microbial populations responsive to denitrification-inducing conditions in rice paddy soil, as revealed by comparative 16S rRNA gene analysis, Appl. Environ. Microbiol., 75, 7070–7078, https://doi.org/10.1128/aem.01481-09, 2009.
Kellogg, C. T. E. and Deming, J. W.: Comparison of free-living, suspended particle, and aggregate-associated bacterial and archaeal communities in the Laptev Sea, Aquat. Microb. Ecol., 57, 1–18, https://doi.org/10.3354/ame01317, 2009.
Kellogg, C. T. E., Carpenter, S., Renfro, A., Sallon, A., Michel, C., Cochran, J., and Deming, J.: Evidence for microbial attenuation of particle flux in the Amundsen Gulf and Beaufort Sea: elevated hydrolytic enzyme activity on sinking aggregates, Polar Biol., 34, 2007–2023, 2011.
Kemp, P. F., Lee, S., and Laroche, J.: Estimating the growth rate of slowly-growing marine bacteria from RNA content, Appl. Environ. Microbiol., 59, 2594–2601, 1993.
Kernegger, L., Zweimuller, I., and Peduzzi, P.: Effects of suspended matter quality and virus abundance on microbial parameters: experimental evidence from a large European river, Aquat. Microb. Ecol., 57, 161–173, https://doi.org/10.3354/ame01341, 2009.
Lapoussiere, A., Michel, C., Starr, M., Gosselin, M., and Poulin, M.: Role of free-living and particle-attached bacteria in the recycling and export of organic material in the Hudson Bay system, J. Mar. Syst., 88, 434–445, 2011.
Lavoie, D., Denman, K. L., and Macdonald, R. W.: Effects of future climate change on primary productivity and export fluxes in the Beaufort Sea, J. Geophys. Res.-Oceans, 115, C04018, https://doi.org/10.1029/2009jc005493, 2010.
Le Fouest, V., Babin, M., and Tremblay, J.-É.: The fate of riverine nutrients on Arctic shelves, Biogeosciences Discuss., 9, 13397–13437, https://doi.org/10.5194/bgd-9-13397-2012, 2012.
Macdonald, R. W., Solomon, S. M., Cranston, R. E., Welch, H. E., Yunker, M. B., and Gobeil, C.: A sediment and organic carbon budget for the Canadian Beaufort shelf, Mar. Geol., 144, 255–273, https://doi.org/10.1016/s0025-3227(97)00106-0, 1998.
Martinez-Garcia, M., Brazel, D. M., Swan, B. K., Arnosti, C., Chain, P. S. G., Reitenga, K. G., Xie, G., Poulton, N. J., Gomez, M. L., Masland, D. E. D., Thompson, B., Bellows, W. K., Ziervogel, K., Lo, C. C., Ahmed, S., Gleasner, C. D., Detter, C. J., and Stepanauskas, R.: Capturing single cell genomes of active polysaccharide degraders: an unexpected contribution of Verrucomicrobia, PLoS One, 7, e35314, https://doi.org/10.1371/journal.pone.0035314, 2012.
Matsuoka, A., Bricaud, A., Benner, R., Para, J., Sempéré, R., Prieur, L., Bélanger, S., and Babin, M.: Tracing the transport of colored dissolved organic matter in water masses of the Southern Beaufort Sea: relationship with hydrographic characteristics, Biogeosciences, 9, 925–940, https://doi.org/10.5194/bg-9-925-2012, 2012.
Mével, G., Vernet, M., Goutx, M., and Ghiglione, J. F.: Seasonal to hour variation scales in abundance and production of total and particle-attached bacteria in the open NW Mediterranean Sea (0–1000 m), Biogeosciences, 5, 1573–1586, https://doi.org/10.5194/bg-5-1573-2008, 2008.
Murrell, M. C., Hollibaugh, J. T., Silver, M. W., and Wong, P. S.: Bacterioplankton dynamics in northern San Francisco Bay: Role of particle association and seasonal freshwater flow, Limnol. Oceanogr., 44, 295–308, 1999.
Obernosterer, I., Lami, R., Larcher, M., Batailler, N., Catala, P., and Lebaron, P.: Linkage between bacterial carbon processing and the structure of the active bacterial community at a coastal site in the NW Mediterranean Sea, Microb. Ecol., 59, 428–435, https://doi.org/10.1007/s00248-009-9588-7, 2010.
Ortega-Retuerta, E., Jeffrey, W., Ghiglione, J., and Joux, F.: Evidence of heterotrophic prokaryotic activity limitation by nitrogen in the Western Arctic Ocean during summer, Polar Biol., 35, 785–794, 2012a.
Ortega-Retuerta, E., Jeffrey, W. H., Babin, M., Bélanger, S., Benner, R., Marie, D., Matsuoka, A., Raimbault, P., and Joux, F.: Carbon fluxes in the Canadian Arctic: patterns and drivers of bacterial abundance, production and respiration on the Beaufort Sea margin, Biogeosciences, 9, 3679–3692, https://doi.org/10.5194/bg-9-3679-2012, 2012b.
Perovich, D. K.: The changing Arctic sea ice cover, Oceanography, 24, 162–173, 2011.
Peterson, B. J., Holmes, R. M., McClelland, J. W., Vorosmarty, C. J., Lammers, R. B., Shiklomanov, A. I., Shiklomanov, I. A., and Rahmstorf, S.: Increasing river discharge to the Arctic Ocean, Science, 298, 2171–2173, https://doi.org/10.1126/science.1077445, 2002.
Quince, C., Lanzen, A., Davenport, R. J., and Turnbaugh, P. J.: Removing noise from pyrosequenced amplicons, BMC Bioinformatics, 12, 38, https://doi.org/10.1186/1471-2105-12-38, 2011.
Rath, J., Wu, K. Y., Herndl, G. J., and DeLong, E. F.: High phylogenetic diversity in a marine-snow-associated bacterial assemblage, Aquat. Microb. Ecol., 14, 261–269, https://doi.org/10.3354/ame014261, 1998.
Riemann, L. and Middelboe, M.: Stability of bacterial and viral community compositions in Danish coastal waters as depicted by DNA fingerprinting techniques, Aquat. Microb. Ecol., 27, 219–232, https://doi.org/10.3354/ame027219, 2002.
Rontani, J.-F., Charriere, B., Forest, A., Heussner, S., Vaultier, F., Petit, M., Delsaut, N., Fortier, L., and Sempéré, R.: Intense photooxidative degradation of planktonic and bacterial lipids in sinking particles collected with sediment traps across the Canadian Beaufort Shelf (Arctic Ocean), Biogeosciences, 9, 4787–4802, https://doi.org/10.5194/bg-9-4787-2012, 2012.
Shen, Y., Fichot, C. G., and Benner, R.: Dissolved organic matter composition and bioavailability reflect ecosystem productivity in the Western Arctic Ocean, Biogeosciences, 9, 4993–5005, https://doi.org/10.5194/bg-9-4993-2012, 2012.
Smith, D. C. and Azam, F.: A simple, economical method for measuring bacterial protein synthesis rates in seawater using 3H-leucine, Mar. Microb. Food Webs, 6, 107–114, 1992.
Smith, D. C., Simon, M., Alldredge, A. L., and Azam, F.: Intense hydrolytic enzyme-activity on marine aggregates and implications for rapid particle dissolution, Nature, 359, 139–142, https://doi.org/10.1038/359139a0, 1992.
Sogin, M. L., Morrison, H. G., Huber, J. A., Mark Welch, D., Huse, S. M., Neal, P. R., Arrieta, J. M., and Herndl, G. J.: Microbial diversity in the deep sea and the underexplored "rare biosphere", Proc. Natl. Acad. Sci. USA, 103, 12115–12120, https://doi.org/10.1073/pnas.0605127103, 2006.
Sun, Y., Wolcott, R. D., and Dowd, S. E.: Tag-encoded FLX amplicon pyrosequencing for the elucidation of microbial and functional gene diversity in any environment, Methods Mol. Biol., 733, 129–141, 2011.
Tremblay, J. E. and Gagnon, J.: The effects of irradiance and nutrient supply on the productivity of Arctic waters: A perspective on climate change, in: Influence of Climate Change on the Changing Arctic and SubArctic Conditions, edited by: Nihoul, J. C. J. and Kostianoy, A. G., Springer, Dordrecht, Netherlands, 73–93, 2009.
Troussellier, M., Schafer, H., Batailler, N., Bernard, L., Courties, C., Lebaron, P., Muyzer, G., Servais, P., and Vives-Rego, J.: Bacterial activity and genetic richness along an estuarine gradient (Rhone River plume, France), Aquat. Microb. Ecol., 28, 13–24, https://doi.org/10.3354/ame028013, 2002.
Vallieres, C., Retamal, L., Ramlal, P., Osburn, C. L., and Vincent, W. F.: Bacterial production and microbial food web structure in a large arctic river and the coastal Arctic Ocean, J. Mar. Sys, 74, 756–773, https://doi.org/10.1016/j.jmarsys.2007.12.002, 2008.
Wang, Q., Garrity, G. M., Tiedje, J. M., and Cole, J. R.: Naive Bayesian classifier for rapid assignment of rRNA sequences into the new bacterial taxonomy, Appl. Environ. Microbiol., 73, 5261–5267, https://doi.org/10.1128/aem.00062-07, 2007.
Wassmann, P., Duarte, C. M., Agusti, S., and Sejr, M. K.: Footprints of climate change in the Arctic marine ecosystem, Glob. Change Biol., 17, 1235–1249, https://doi.org/10.1111/j.1365-2486.2010.02311.x, 2011.
Williams, T. J., Long, E., Evans, F., Demaere, M. Z., Lauro, F. M., Raftery, M. J., Ducklow, H., Grzymski, J. J., Murray, A. E., and Cavicchioli, R.: A metaproteomic assessment of winter and summer bacterioplankton from Antarctic Peninsula coastal surface waters, ISME J., 6, 1883–1900, https://doi.org/10.1038/ismej.2012.28, 2012.
Wozniak, S. B., Stramski, D., Stramska, M., Reynolds, R. A., Wright, V. M., Miksic, E. Y., Cichocka, M., and Cieplak, A. M.: Optical variability of seawater in relation to particle concentration, composition, and size distribution in the nearshore marine environment at Imperial Beach, California, J. Geophys. Res.-Oceans, 115, C08027, https://doi.org/10.1029/2009JC005554, 2010.
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