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Junger PC, Sarmento H, Giner CR, Mestre M, Sebastián M, Morán XAG, Arístegui J, Agustí S, Duarte CM, Acinas SG, Massana R, Gasol JM, Logares R. Global biogeography of the smallest plankton across ocean depths. Sci Adv 2023; 9:eadg9763. [PMID: 37939185 PMCID: PMC10631730 DOI: 10.1126/sciadv.adg9763] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 10/05/2023] [Indexed: 11/10/2023]
Abstract
Tiny ocean plankton (picoplankton) are fundamental for the functioning of the biosphere, but the ecological mechanisms shaping their biogeography were partially understood. Comprehending whether these microorganisms are structured by niche versus neutral processes is relevant in the context of global change. We investigate the ecological processes (selection, dispersal, and drift) structuring global-ocean picoplanktonic communities inhabiting the epipelagic (0 to 200 meters), mesopelagic (200 to 1000 meters), and bathypelagic (1000 to 4000 meters) zones. We found that selection decreased, while dispersal limitation increased with depth, possibly due to differences in habitat heterogeneity and dispersal barriers such as water masses and bottom topography. Picoplankton β-diversity positively correlated with environmental heterogeneity and water mass variability, but this relationship tended to be weaker for eukaryotes than for prokaryotes. Community patterns were more pronounced in the Mediterranean Sea, probably because of its cross-basin environmental heterogeneity and deep-water isolation. We conclude that different combinations of ecological mechanisms shape the biogeography of the ocean microbiome across depths.
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Affiliation(s)
- Pedro C. Junger
- Department of Hydrobiology, Universidade Federal de São Carlos (UFSCar), São Carlos, SP 13565-905, Brazil
- Programa de Pós-Graduação em Ecologia e Recursos Naturais, Centro de Ciências Biológicas e da Saúde, Universidade Federal de São Carlos (UFSCar), São Carlos, SP 13565-905, Brazil
| | - Hugo Sarmento
- Department of Hydrobiology, Universidade Federal de São Carlos (UFSCar), São Carlos, SP 13565-905, Brazil
| | - Caterina R. Giner
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Catalunya 08003, Spain
| | - Mireia Mestre
- Centro COPAS-COASTAL, Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Marta Sebastián
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Catalunya 08003, Spain
| | - Xosé Anxelu G. Morán
- Centro Oceanográfico de Gijón/Xixón (IEO, CSIC), Gijón/Xixón, Asturias 33212, Spain
| | - Javier Arístegui
- Instituto de Oceanografía y Cambio Global (IOCAG), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria 35214, Spain
| | - Susana Agustí
- King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal 23955-6900, Saudi Arabia
| | - Carlos M. Duarte
- King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal 23955-6900, Saudi Arabia
| | - Silvia G. Acinas
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Catalunya 08003, Spain
| | - Ramon Massana
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Catalunya 08003, Spain
| | - Josep M. Gasol
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Catalunya 08003, Spain
| | - Ramiro Logares
- Institut de Ciències del Mar (ICM), CSIC, Barcelona, Catalunya 08003, Spain
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Gazulla CR, Auladell A, Ruiz-González C, Junger PC, Royo-Llonch M, Duarte CM, Gasol JM, Sánchez O, Ferrera I. Global diversity and distribution of aerobic anoxygenic phototrophs in the tropical and subtropical oceans. Environ Microbiol 2022; 24:2222-2238. [PMID: 35084095 DOI: 10.1111/1462-2920.15835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/17/2021] [Accepted: 10/29/2021] [Indexed: 01/04/2023]
Abstract
The aerobic anoxygenic phototrophic (AAP) bacteria are common in most marine environments but their global diversity and biogeography remain poorly characterized. Here, we analyzed AAP communities across 113 globally-distributed surface ocean stations sampled during the Malaspina Expedition in the tropical and subtropical ocean. By means of amplicon sequencing of the pufM gene, a genetic marker for this functional group, we show that AAP communities along the surface ocean were mainly composed of members of the Halieaceae (Gammaproteobacteria), which were adapted to a large range of environmental conditions, and of different clades of the Alphaproteobacteria, which seemed to dominate under particular circumstances, such as in the oligotrophic gyres. AAP taxa were spatially structured within each of the studied oceans, with communities from adjacent stations sharing more taxonomic similarities. AAP communities were composed of a large pool of rare members and several habitat specialists. When compared to the surface ocean prokaryotic and picoeukaryotic communities, it appears that AAP communities display an idiosyncratic global biogeographical pattern, dominated by selection processes and less influenced by dispersal limitation. Our study contributes to the understanding of how AAP communities are distributed in the horizontal dimension and the mechanisms underlying their distribution across the global surface ocean.
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Affiliation(s)
- Carlota R Gazulla
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, Catalunya, 08193, Spain.,Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, Barcelona, Catalunya, 08003, Spain
| | - Adrià Auladell
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, Barcelona, Catalunya, 08003, Spain
| | - Clara Ruiz-González
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, Barcelona, Catalunya, 08003, Spain
| | - Pedro C Junger
- Department of Hydrobiology (DHB), Laboratory of Microbial Processes and Biodiversity (LMPB), Universidade Federal de São Carlos (UFSCar), São Carlos, SP, 13565-905, Brazil
| | - Marta Royo-Llonch
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, Barcelona, Catalunya, 08003, Spain
| | - Carlos M Duarte
- Red Sea Research Center (RSRC) and Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Josep M Gasol
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar, ICM-CSIC, Barcelona, Catalunya, 08003, Spain.,Centre for Marine Ecosystems Research, School of Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Olga Sánchez
- Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Bellaterra, Catalunya, 08193, Spain
| | - Isabel Ferrera
- Centro Oceanográfico de Málaga, Instituto Español de Oceanografía, IEO-CSIC, 29640 Fuengirola, Málaga, Spain
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Chaffron S, Delage E, Budinich M, Vintache D, Henry N, Nef C, Ardyna M, Zayed AA, Junger PC, Galand PE, Lovejoy C, Murray AE, Sarmento H, Acinas SG, Babin M, Iudicone D, Jaillon O, Karsenti E, Wincker P, Karp-Boss L, Sullivan MB, Bowler C, de Vargas C, Eveillard D. Environmental vulnerability of the global ocean epipelagic plankton community interactome. Sci Adv 2021; 7:eabg1921. [PMID: 34452910 PMCID: PMC8397264 DOI: 10.1126/sciadv.abg1921] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 07/09/2021] [Indexed: 05/05/2023]
Abstract
Marine plankton form complex communities of interacting organisms at the base of the food web, which sustain oceanic biogeochemical cycles and help regulate climate. Although global surveys are starting to reveal ecological drivers underlying planktonic community structure and predicted climate change responses, it is unclear how community-scale species interactions will be affected by climate change. Here, we leveraged Tara Oceans sampling to infer a global ocean cross-domain plankton co-occurrence network-the community interactome-and used niche modeling to assess its vulnerabilities to environmental change. Globally, this revealed a plankton interactome self-organized latitudinally into marine biomes (Trades, Westerlies, Polar) and more connected poleward. Integrated niche modeling revealed biome-specific community interactome responses to environmental change and forecasted the most affected lineages for each community. These results provide baseline approaches to assess community structure and organismal interactions under climate scenarios while identifying plausible plankton bioindicators for ocean monitoring of climate change.
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Affiliation(s)
- Samuel Chaffron
- Université de Nantes, CNRS UMR 6004, LS2N, F-44000 Nantes, France.
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
| | - Erwan Delage
- Université de Nantes, CNRS UMR 6004, LS2N, F-44000 Nantes, France
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
| | - Marko Budinich
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Sorbonne Université, CNRS, Laboratoire Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Damien Vintache
- Université de Nantes, CNRS UMR 6004, LS2N, F-44000 Nantes, France
| | - Nicolas Henry
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Sorbonne Université, CNRS, Laboratoire Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Charlotte Nef
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, PSL Université Paris, 75005 Paris, France
| | - Mathieu Ardyna
- Department of Earth System Science, Stanford University, Stanford, CA 94305, USA
- Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230, Villefranche-sur-Mer, Paris, France
| | - Ahmed A Zayed
- Department of Microbiology, Ohio State University, Columbus, OH 43210, USA
| | - Pedro C Junger
- Department of Hydrobiology, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luiz, 13565-905 São Carlos, SP, Brazil
| | - Pierre E Galand
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Sorbonne Université, CNRS, Laboratoire d'Ecogéochimie des Environnements Benthiques, LECOB, Banyuls-sur-Mer, 66500 Paris, France
| | - Connie Lovejoy
- Département de biologie, Faculté des sciences et Institut de biologie intégrative et des systèmes (IBIS) 1030, ave de la Médecine, Université Laval, Québec, QC, Canada
| | - Alison E Murray
- Division of Earth and Ecosystem Science, Desert Research Institute, Reno, NV 89512, USA
| | - Hugo Sarmento
- Department of Hydrobiology, Universidade Federal de São Carlos (UFSCar), Rodovia Washington Luiz, 13565-905 São Carlos, SP, Brazil
| | - Silvia G Acinas
- Department of Marine Biology and Oceanography, Institut de Ciències del Mar (CSIC), Barcelona 08003, Spain
| | - Marcel Babin
- Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230, Villefranche-sur-Mer, Paris, France
- Takuvik International Research Laboratory, Université Laval and CNRS, Québec, QC, Canada
| | - Daniele Iudicone
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy
| | - Olivier Jaillon
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Université Evry, Université Paris-Saclay, Evry, 91057 Paris, France
| | - Eric Karsenti
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, PSL Université Paris, 75005 Paris, France
| | - Patrick Wincker
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Université Evry, Université Paris-Saclay, Evry, 91057 Paris, France
| | - Lee Karp-Boss
- School of Marine Sciences, University of Maine, Orono, ME, USA
| | - Matthew B Sullivan
- Department of Microbiology, Ohio State University, Columbus, OH 43210, USA
- Department of Civil, Environmental and Geodetic Engineering, Ohio State University, Columbus, OH 43210, USA
| | - Chris Bowler
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Institut de Biologie de l'École Normale Supérieure (IBENS), École Normale Supérieure, CNRS, INSERM, PSL Université Paris, 75005 Paris, France
| | - Colomban de Vargas
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
- Sorbonne Université, CNRS, Laboratoire Adaptation et Diversité en Milieu Marin, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Damien Eveillard
- Université de Nantes, CNRS UMR 6004, LS2N, F-44000 Nantes, France
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara Oceans, Paris, France
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Logares R, Deutschmann IM, Junger PC, Giner CR, Krabberød AK, Schmidt TSB, Rubinat-Ripoll L, Mestre M, Salazar G, Ruiz-González C, Sebastián M, de Vargas C, Acinas SG, Duarte CM, Gasol JM, Massana R. Disentangling the mechanisms shaping the surface ocean microbiota. Microbiome 2020; 8:55. [PMID: 32312331 PMCID: PMC7171866 DOI: 10.1186/s40168-020-00827-8] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 03/13/2020] [Indexed: 05/19/2023]
Abstract
BACKGROUND The ocean microbiota modulates global biogeochemical cycles and changes in its configuration may have large-scale consequences. Yet, the underlying ecological mechanisms structuring it are unclear. Here, we investigate how fundamental ecological mechanisms (selection, dispersal and ecological drift) shape the smallest members of the tropical and subtropical surface-ocean microbiota: prokaryotes and minute eukaryotes (picoeukaryotes). Furthermore, we investigate the agents exerting abiotic selection on this assemblage as well as the spatial patterns emerging from the action of ecological mechanisms. To explore this, we analysed the composition of surface-ocean prokaryotic and picoeukaryotic communities using DNA-sequence data (16S- and 18S-rRNA genes) collected during the circumglobal expeditions Malaspina-2010 and TARA-Oceans. RESULTS We found that the two main components of the tropical and subtropical surface-ocean microbiota, prokaryotes and picoeukaryotes, appear to be structured by different ecological mechanisms. Picoeukaryotic communities were predominantly structured by dispersal-limitation, while prokaryotic counterparts appeared to be shaped by the combined action of dispersal-limitation, selection and drift. Temperature-driven selection appeared as a major factor, out of a few selected factors, influencing species co-occurrence networks in prokaryotes but not in picoeukaryotes, indicating that association patterns may contribute to understand ocean microbiota structure and response to selection. Other measured abiotic variables seemed to have limited selective effects on community structure in the tropical and subtropical ocean. Picoeukaryotes displayed a higher spatial differentiation between communities and a higher distance decay when compared to prokaryotes, consistent with a scenario of higher dispersal limitation in the former after considering environmental heterogeneity. Lastly, random dynamics or drift seemed to have a more important role in structuring prokaryotic communities than picoeukaryotic counterparts. CONCLUSIONS The differential action of ecological mechanisms seems to cause contrasting biogeography, in the tropical and subtropical ocean, among the smallest surface plankton, prokaryotes and picoeukaryotes. This suggests that the idiosyncrasy of the main constituents of the ocean microbiota should be considered in order to understand its current and future configuration, which is especially relevant in a context of global change, where the reaction of surface ocean plankton to temperature increase is still unclear. Video Abstract.
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Affiliation(s)
- Ramiro Logares
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Department of Biosciences, Section for Genetics and Evolutionary Biology, University of Oslo, 0316 Oslo, Norway
| | - Ina M. Deutschmann
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
| | - Pedro C. Junger
- Laboratory of Microbial Processes & Biodiversity (LMPB), Department of Hydrobiology (DHB), Universidade Federal de São Carlos (UFSCar), São Carlos, 13565-905 SP Brazil
| | - Caterina R. Giner
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Institute for the Oceans and Fisheries, University of British Columbia, 2202 Main Mall, Vancouver, BC V6T 1Z4 Canada
| | - Anders K. Krabberød
- Department of Biosciences, Section for Genetics and Evolutionary Biology, University of Oslo, 0316 Oslo, Norway
| | - Thomas S. B. Schmidt
- European Molecular Biology Laboratory, Meyerhofstr. 1, 69117 Heidelberg, Germany
| | - Laura Rubinat-Ripoll
- Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7144, Adaptation et Diversité en Milieu Marin, Equipe EPEP, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Mireia Mestre
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Centro de Investigación Oceanográfica COPAS Sur-Austral, Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile
- Centro FONDAP de Investigación Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de Chile, Valdivia, Chile
| | - Guillem Salazar
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Department of Biology, Institute of Microbiology and Swiss Institute of Bioinformatics, ETH Zürich, 8093 Zürich, Switzerland
| | | | - Marta Sebastián
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Oceanography and Global Change Institute, IOCAG, University of Las Palmas de Gran Canaria, ULPGC, 35214 Gran Canaria, Spain
| | - Colomban de Vargas
- Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7144, Adaptation et Diversité en Milieu Marin, Equipe EPEP, Station Biologique de Roscoff, 29680 Roscoff, France
| | - Silvia G. Acinas
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
| | - Carlos M. Duarte
- King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal, Saudi Arabia
| | - Josep M. Gasol
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
- Centre for Marine Ecosystems Research, School of Science, Edith Cowan University, Joondalup, WA Australia
| | - Ramon Massana
- Institute of Marine Sciences (ICM), CSIC, 08003 Barcelona, Catalonia Spain
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Almeida RM, Hamilton SK, Rosi EJ, Arantes JD, Barros N, Boemer G, Gripp A, Huszar VLM, Junger PC, Lima M, Pacheco F, Carvalho D, Reisinger AJ, Silva LHS, Roland F. Limnological effects of a large Amazonian run-of-river dam on the main river and drowned tributary valleys. Sci Rep 2019; 9:16846. [PMID: 31727931 PMCID: PMC6856549 DOI: 10.1038/s41598-019-53060-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 10/18/2019] [Indexed: 11/09/2022] Open
Abstract
Run-of-river dams are often considered to have lower environmental impacts than storage dams due to their smaller reservoirs and low potential for flow alteration. However, this has been questioned for projects recently built on large rivers around the world. Two of the world's largest run-of-river dams-Santo Antônio and Jirau-were recently constructed on the Madeira River, a major tributary to the Amazon River in Brazil. Here we evaluate the effects of the creation of the Santo Antônio dam on the water chemistry and thermal structure of the Madeira River mainstem and back-flooded valleys of tributaries within the reservoir inundated area. In contrast to the mainstem river, some back-flooded tributaries periodically developed thermal stratification, which is associated with higher water residence times. Additionally, biochemical oxygen demand, partial pressure of CO2, and organic carbon all increased in the tributary valleys inundated by the reservoir, possibly due to increased input of allochthonous organic matter and its subsequent mineralization upon back-flooding-a common feature of newly flooded impoundments. The mainstem did not show detectable dam-related changes in water chemistry and thermal structure. Although the majority of the reservoir area maintained riverine conditions, the lateral valleys formed upon back-flooding-corresponding to ~30% of the Santo Antônio reservoir area-developed lake-like conditions akin to a typical reservoir of a storage dam.
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Affiliation(s)
- Rafael M Almeida
- Department of Biology, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil.
- Cary Institute of Ecosystem Studies, Millbrook, NY, USA.
- Department of Ecology and Evolutionary Biology, Cornell University, Ithaca, NY, USA.
| | - Stephen K Hamilton
- Cary Institute of Ecosystem Studies, Millbrook, NY, USA
- W.K. Kellogg Biological Station and Department of Integrative Biology, Michigan State University, Hickory Corners, MI, USA
| | - Emma J Rosi
- Cary Institute of Ecosystem Studies, Millbrook, NY, USA
| | | | - Nathan Barros
- Department of Biology, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
| | - Gina Boemer
- Ecology and Environment do Brasil Ltda., Rio de Janeiro, RJ, Brazil
| | - Anderson Gripp
- Institute of Biodiversity and Sustainability, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Vera L M Huszar
- National Museum, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Pedro C Junger
- Department of Hydrobiology, Federal University of São Carlos, São Carlos, SP, Brazil
| | - Michele Lima
- Ecology and Environment do Brasil Ltda., Rio de Janeiro, RJ, Brazil
| | - Felipe Pacheco
- Earth System Science Center, National Institute for Space Research, São José dos Campos, SP, Brazil
| | | | | | - Lúcia H S Silva
- National Museum, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Fábio Roland
- Department of Biology, Federal University of Juiz de Fora, Juiz de Fora, MG, Brazil
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Junger PC, Amado AM, Paranhos R, Cabral AS, Jacques SMS, Farjalla VF. Salinity Drives the Virioplankton Abundance but Not Production in Tropical Coastal Lagoons. Microb Ecol 2018; 75:52-63. [PMID: 28721503 DOI: 10.1007/s00248-017-1038-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 07/04/2017] [Indexed: 06/07/2023]
Abstract
Viruses are the most abundant components of microbial food webs and play important ecological and biogeochemical roles in aquatic ecosystems. Virioplankton is regulated by several environmental factors, such as salinity, turbidity, and humic substances. However, most of the studies aimed to investigate virioplankton regulation were conducted in temperate systems combining a limited range of environmental variables. In this study, virus abundance and production were determined and their relation to bacterial and limnological variables was assessed in 20 neighboring shallow tropical coastal lagoons that present wide environmental gradients of turbidity (2.32-571 NTU), water color (1.82-92.49 m-1), dissolved organic carbon (0.71-16.7 mM), salinity (0.13-332.1‰), and chlorophyll-a (0.28 to 134.5 μg L-1). Virus abundance varied from 0.37 × 108 to 117 × 108 virus-like-particle (VLP) mL-1, with the highest values observed in highly salty aquatic systems. Salinity and heterotrophic bacterial abundance were the main variables positively driving viral abundances in these lagoons. We suggest that, with increased salinity, there is a decrease in the protozoan control on bacterial populations and lower bacterial diversity (higher encounter rates with virus specific hosts), both factors positively affecting virus abundance. Virus production varied from 0.68 × 107 to 56.5 × 107 VLP mL-1 h-1 and was regulated by bacterial production and total phosphorus, but it was not directly affected by salinity. The uncoupling between virus abundance and virus production supports that the hypothesis that the lack of grazing pressure on viral and bacterial populations is an important mechanism causing virus abundance to escalate with increasing salt concentrations.
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Affiliation(s)
- Pedro C Junger
- Lab. Limnologia, Departamento de Ecologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, 21941-590, Brazil.
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-971, Brazil.
| | - André M Amado
- Departamento de Biologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, 36036-900, Brazil
- Departamento de Oceanografia e Limnologia, Instituto de Biociências, Universidade Federal do Rio Grande do Norte, Natal, RN, 59014-002, Brazil
| | - Rodolfo Paranhos
- Laboratório de Hidrobiologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-617, Brazil
| | - Anderson S Cabral
- Laboratório de Hidrobiologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-617, Brazil
| | - Saulo M S Jacques
- Lab. Limnologia, Departamento de Ecologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, 21941-590, Brazil
- Programa de Pós-Graduação em Ecologia e Evolução, Universidade Estadual do Rio de Janeiro, Rio de Janeiro, RJ, 20550-013, Brazil
| | - Vinicius F Farjalla
- Lab. Limnologia, Departamento de Ecologia, Instituto de Biologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro, RJ, 21941-590, Brazil
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Almeida RM, Nóbrega GN, Junger PC, Figueiredo AV, Andrade AS, de Moura CGB, Tonetta D, Oliveira ES, Araújo F, Rust F, Piñeiro-Guerra JM, Mendonça JR, Medeiros LR, Pinheiro L, Miranda M, Costa MRA, Melo ML, Nobre RLG, Benevides T, Roland F, de Klein J, Barros NO, Mendonça R, Becker V, Huszar VLM, Kosten S. High Primary Production Contrasts with Intense Carbon Emission in a Eutrophic Tropical Reservoir. Front Microbiol 2016; 7:717. [PMID: 27242737 PMCID: PMC4870258 DOI: 10.3389/fmicb.2016.00717] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 04/29/2016] [Indexed: 11/18/2022] Open
Abstract
Recent studies from temperate lakes indicate that eutrophic systems tend to emit less carbon dioxide (CO2) and bury more organic carbon (OC) than oligotrophic ones, rendering them CO2 sinks in some cases. However, the scarcity of data from tropical systems is critical for a complete understanding of the interplay between eutrophication and aquatic carbon (C) fluxes in warm waters. We test the hypothesis that a warm eutrophic system is a source of both CO2 and CH4 to the atmosphere, and that atmospheric emissions are larger than the burial of OC in sediments. This hypothesis was based on the following assumptions: (i) OC mineralization rates are high in warm water systems, so that water column CO2 production overrides the high C uptake by primary producers, and (ii) increasing trophic status creates favorable conditions for CH4 production. We measured water-air and sediment-water CO2 fluxes, CH4 diffusion, ebullition and oxidation, net ecosystem production (NEP) and sediment OC burial during the dry season in a eutrophic reservoir in the semiarid northeastern Brazil. The reservoir was stratified during daytime and mixed during nighttime. In spite of the high rates of primary production (4858 ± 934 mg C m-2 d-1), net heterotrophy was prevalent due to high ecosystem respiration (5209 ± 992 mg C m-2 d-1). Consequently, the reservoir was a source of atmospheric CO2 (518 ± 182 mg C m-2 d-1). In addition, the reservoir was a source of ebullitive (17 ± 10 mg C m-2 d-1) and diffusive CH4 (11 ± 6 mg C m-2 d-1). OC sedimentation was high (1162 mg C m-2 d-1), but our results suggest that the majority of it is mineralized to CO2 (722 ± 182 mg C m-2 d-1) rather than buried as OC (440 mg C m-2 d-1). Although temporally resolved data would render our findings more conclusive, our results suggest that despite being a primary production and OC burial hotspot, the tropical eutrophic system studied here was a stronger CO2 and CH4 source than a C sink, mainly because of high rates of OC mineralization in the water column and sediments.
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Affiliation(s)
- Rafael M Almeida
- Laboratory of Aquatic Ecology, Department of Biology, Instituto de Ciências Biológicas, Federal University of Juiz de Fora Juiz de Fora, Brazil
| | - Gabriel N Nóbrega
- Departamento de Ciência do Solo, Escola Superior de Agricultura Luiz de Queiroz, University of São Paulo Piracicaba, Brazil
| | - Pedro C Junger
- Laboratory of Limnology, Federal University of Rio de Janeiro Rio de Janeiro, Brazil
| | - Aline V Figueiredo
- Laboratory of Water Resources and Environmental Sanitation, Federal University of Rio Grande do Norte Natal, Brazil
| | - Anízio S Andrade
- Laboratory of Limnology, Federal University of Rio Grande do Norte Natal, Brazil
| | | | - Denise Tonetta
- Laboratory of Freshwater Ecology, Federal University of Santa Catarina Florianópolis, Brazil
| | - Ernandes S Oliveira
- Department of Aquatic Ecology and Environmental Biology, Institute for Water and Wetland Research, Radboud University Nijmegen, Netherlands
| | - Fabiana Araújo
- Laboratory of Water Resources and Environmental Sanitation, Federal University of Rio Grande do Norte Natal, Brazil
| | - Felipe Rust
- Laboratory of Aquatic Ecology, Department of Biology, Instituto de Ciências Biológicas, Federal University of Juiz de Fora Juiz de Fora, Brazil
| | - Juan M Piñeiro-Guerra
- Departamento de Ecología Teórica y Aplicada, Centro Universitario Regional Este and Facultad de Ciencias, Universidad de la República Montevideo, Uruguay
| | - Jurandir R Mendonça
- Laboratory of Water Resources and Environmental Sanitation, Federal University of Rio Grande do Norte Natal, Brazil
| | - Leonardo R Medeiros
- Laboratory of Limnology, Federal University of Rio Grande do Norte Natal, Brazil
| | - Lorena Pinheiro
- Departamento de Ciências Naturais, Universidade Federal do Estado do Rio de Janeiro Rio de Janeiro, Brazil
| | - Marcela Miranda
- Laboratory of Aquatic Ecology, Department of Biology, Instituto de Ciências Biológicas, Federal University of Juiz de Fora Juiz de Fora, Brazil
| | - Mariana R A Costa
- Laboratory of Water Resources and Environmental Sanitation, Federal University of Rio Grande do Norte Natal, Brazil
| | - Michaela L Melo
- Laboratory of Microbial Processes and Biodiversity, Federal University of São Carlos São Carlos, Brazil
| | - Regina L G Nobre
- Laboratory of Limnology, Federal University of Rio Grande do Norte Natal, Brazil
| | - Thiago Benevides
- Laboratory of Limnology, Federal University of Rio de Janeiro Rio de Janeiro, Brazil
| | - Fábio Roland
- Laboratory of Aquatic Ecology, Department of Biology, Instituto de Ciências Biológicas, Federal University of Juiz de Fora Juiz de Fora, Brazil
| | - Jeroen de Klein
- Aquatic Ecology and Environmental Sciences, Wageningen University Wageningen, Netherlands
| | - Nathan O Barros
- Laboratory of Aquatic Ecology, Department of Biology, Instituto de Ciências Biológicas, Federal University of Juiz de Fora Juiz de Fora, Brazil
| | - Raquel Mendonça
- Laboratory of Aquatic Ecology, Department of Biology, Instituto de Ciências Biológicas, Federal University of Juiz de ForaJuiz de Fora, Brazil; Department of Ecology and Genetics, Uppsala UniversityUppsala, Sweden
| | - Vanessa Becker
- Laboratory of Water Resources and Environmental Sanitation, Federal University of Rio Grande do Norte Natal, Brazil
| | - Vera L M Huszar
- Laboratório de Ficologia, Museu Nacional, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Sarian Kosten
- Department of Aquatic Ecology and Environmental Biology, Institute for Water and Wetland Research, Radboud University Nijmegen, Netherlands
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