"False"
Skip to content
printicon
Main menu hidden.
Staff photo Johan Wikner

Johan Wikner

My research focuses on understanding what controls respiration and growth in Bacteria and Archaea in the ocean with relevance to the carbon and oxygen cycles in the biosphere.

Research qualifications: Docent

Contact

E-mail
Phone

Works at

Affiliation
Location
KBC-Fysiologihuset, Linnaeus väg 6, Umeå, A3 44 15 Umeå universitet, 901 87 Umeå

Marine microbial ecology

My research is focused on control of Prokaryotes (Bacteria and Archea) and their abundance, growth, and respiration in the Sea. This is relevant for decomposition of organic matter, associated oxygen consumption and transformation of elements in the biosphere. Special interest is in how discharge of carbon and nutrients influence prokaryotic activity in the coastal sea. In addition, how shrinking ice cover in the Arctic ocean will influence the prokaryotic transformation of carbon compounds. Development of a precise method for estimation of oxygen consumption with sensor technique and Peltier-elements has been crucial for this research. Time series from monitoring programs are used to understand controlling factors for bacterial abundance, growth on large spatial and temporal scales.

As associated with the University unit for the Swedish Institute of the Marine Environment I contribute to analyse and synthesize the environmental status of the marine environment. This is done with focus on the national environmental goals No eutrophication and Limited climate impact, and the global sustainable goal Life below water. The results are used for scientific advice to water authorities and are communicated to the public and decision makers.

Contact me for degree projects within these subject fields.

FEMS Microbiology Ecology, Oxford University Press 2024, Vol. 100, (8)
Vass, Mate; Székely, Anna J.; Carlsson-Graner, Ulla; et al.
Swedish National Data Service 2024
Wikner, Johan
PANGAEA 2024
Wikner, Johan; Vikström, Kevin
Environmental Microbiology,Prokaryotic variables from a indoor-mesocosm experiment measured during the winter in the Northern Bothnian Sea, John Wiley & Sons 2023, Vol. 25, (3) : 721-737
Verma, Ashish; Amnebrink, Dennis; Pinhassi, Jarone; et al.
AQUACOSM-plus, D8.5
Wikner, Johan; Larsson, Henrik; Vikström, Kevin; et al.
AQUACOSM-plus, D4.16
Wikner, Johan; Ramnefält, Richard; Simon, Keeble; et al.
Frontiers in Marine Science,Prokaryotic respiration and growth in Baltic and north Seas 2017, Frontiers Media S.A. 2023, Vol. 10
Wikner, Johan; Vikström, Kevin
Frontiers in Marine Science, Frontiers Media S.A. 2023, Vol. 10
Wikner, Johan; Vikström, Kevin; Verma, Ashish
Aquacosm-plus, D4.9
Ramnefält, Richard; Wikner, Johan
FEMS Microbiology Ecology, Oxford University Press 2022, Vol. 98, (11)
Vass, Máté; Eriksson, Karolina; Carlsson-Graner, Ulla; et al.
Climate change in the baltic sea: 2021 fact sheet, Helsinki: Helsinki Commission (HELCOM) 2021 : 39-39
Jürgens, Klaus; Wikner, Johan
Aquacosm-plus, D4.1
Ramnefält, Richard; Wikner, Johan
Frontiers in Marine Science, FRONTIERS MEDIA SA 2020, Vol. 6
Muelbert, Jose H.; Nidzieko, Nicholas J.; Acosta, Alicia T. R.; et al.
Frontiers in Marine Science, Frontiers Media S.A. 2020, Vol. 7
Vikström, Kevin; Bartl, Ines; Karlsson, Jan; et al.
Frontiers in Marine Science, Frontiers Media S.A. 2019, Vol. 6
Muelbert, Jose H.; Nidzieko, Nicholas J.; Acosta, Alicia T. R.; et al.
Limnology and Oceanography: Methods, John Wiley & Sons 2019, Vol. 17, (3) : 179-189
Vikström, Kevin; Tengberg, Anders; Wikner, Johan
Havsutsikt, Havsmiljöinstitutet 2019, (2) : 6-8
Vikström, Kevin; Wikner, Johan
Microbial Ecology, Springer 2019, Vol. 77, (3) : 574-586
Vikström, Kevin; Wikner, Johan
Helcom 2018
Huseby, Siv; Wikner, Johan
Journal of Marine Systems, Vol. 170 : 22-30
Ahlgren, Joakim; Grimvall, Anders; Omstedt, Anders; et al.
Havsmiljöinstitutets rapport, 2017:5
Ahlgren, Joakim; Rolff, Carl; Grimvall, Anders; et al.
Havet: om miljötillståndet i svenska havsområden. 2015/2016, Göteborg: Havs- och vattenmyndigheten 2016 : 25-28
Andersson, Agneta; Wikner, Johan
Marine Ecology Progress Series, Oldendorf/Luhe: 2016, Vol. 561 : 17-29
Båmstedt, Ulf; Wikner, Johan
Ambio, Springer 2015, Vol. 44, (Suppl 3) : S345-S356
Andersson, Agneta; Meier, H.E. Markus; Ripszam, Matyas; et al.
Second Assessment of Climate Change for the Baltic Sea Basin, London: Springer 2015 : 363-380
Viitasalo, Markku; Blenckner, Thorsten; Gårdmark, Anna; et al.
Havsmiljöinstitutets rapport, 3
Moksnes, Per-Olav; Albertsson, Jan; Elfwing, Tina; et al.
FEMS Microbiology Ecology, Hoboken: Wiley-Blackwell 2013, Vol. 85, (2) : 338-347
Nydahl, Anna; Panigrahi, Satya; Wikner, Johan
Estuarine, Coastal and Shelf Science, Academia Press 2013, Vol. 136 : 269-279
Panigrahi, Satya; Nydahl, Anna; Anton, Peter; et al.
Limnology and Oceanography: Methods, Association for the Sciences of Limnology and Oceanography 2013, Vol. 11 : 1-15
Wikner, Johan; Panigrahi, Satya; Nydahl, Anna; et al.
Marine Ecology Progress Series, Vol. 453 : 37-48
Grubisic, Lorena M.; Brutemark, Andreas; Weyhenmeyer, Gesa A.; et al.
Global Change Biology, Vol. 18, (8) : 2509-2519
Wikner, Johan; Andersson, Agneta
Havet 2012: om miljötillståndet i svenska havsområden, Stockholm / Göteborg: Havsmiljöinstitutet och Havs- och vattenmyndigheten 2012 : 46-46
Wikner, Johan; Karlsson, Chatarina; Andersson, Agneta; et al.
Havet 2011: om miljötillståndet i svenska havsområden, Göteborg ; Stockholm: Havs-och vattenmyndigheten, Naturvårdsverket och Havsmiljöinstitutet 2011 : 6-12
Nilsson, Jonas; Moksnes, Per-Olav; Elfwing, Tina; et al.
Havet 2011: om miljötillståndet i svenska havsområden. 2011, Stockholm: Naturvårdsverket, Havsmiljöinstitutet och Havs- och vattenmyndigheten 2011 : 30-30
Wikner, Johan; Andersson, Agneta; Karlsson, Chatarina; et al.
Havet: om miljötillståndet i svenska havsområden. 2010, Stockholm: Naturvårdsverket och Havsmiljöinstitutet 2010 : 26-29
Larsson, Ulf; Nyberg, Svante; Andreasson, Kristin; et al.
JRC scientific and technical reports
Rogers, Stuart; Casini, Michele; Cury, Philippe; et al.
HAVET: 2010, Stockholm: Naturvårdsverket 2010 : 34-34
Wikner, Johan
Havet: om miljötillståndet i svenska havsområden. 2010, Stockholm: Naturvårdsverket 2010 : 30-30
Wikner, Johan; Andersson, Agneta; Albertsson, Jan; et al.
Limnology, Vol. 10, (2) : 73-85
Panigrahi, Satya; Wikner, Johan; Panigrahy, R. C.; et al.
Havet 2009: Nationell marin tillståndsrapport, Stockholm: Naturvårdsverket 2009 : 39-39
Wikner, Johan
Länsstyrelsens rapporter, 2008:10
Andersson, Agneta; Hansen, W; Wänstrand, I; et al.
Gävle: Länsstyrelsen Gävleborg 2008
Andersson, Agneta; Hansen, Wenche; Wänstrand, Ingrid; et al.
Havet: Nationell marin tillståndsrapport, Stockholm: Naturvårdsverket 2008 : 52-52
Wikner, Johan
Meddelanden / Länsstyrelsen, Västerbottens län, 1
Wikner, Johan; Kronholm, Malin; Sedin, Anneli; et al.
Stockholm: Naturvårdsverket 2007
Båmstedt, Ulf; Andersson, Agneta; Wikner, Johan; et al.
Havet: Nationell marin tillståndsrapport, Stockholm: Naturvårdsverket 2007 : 45-46
Wikner, Johan
Journal of Marine Systems, Elsevier 2006, Vol. 63, (3-4) : 155-161
Algesten, Grete; Brydsten, Lars; Jonsson, Per; et al.
Limnology and Oceanography, American Society of Limnology and Oceanography 2005, Vol. 50, (3) : 945-956
Kisand, Veljo; Andersson, Nina; Wikner, Johan
Luleå: Länsstyrelsen i Norrbottens län 2005
Wikner, Johan

Research groups

Head of research
Johan Wikner Lab
Group member
Published: 08 Jun, 2022
Published: 03 Jun, 2021
Published: 08 Nov, 2019