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Staff photo Johan Wikner

Johan Wikner

My research focus on marine bacteria and their influence on the environmental status in the Sea. I am also director for Umeå Marine Sciences Center.

Contact

Works at

Affiliation
Location
KB. H3, Linnaeus väg 6, Umeå, A3.18.21 Umeå universitet, 901 87 Umeå
Affiliation
Affiliated as professor at Umeå Marine Sciences Centre (UMF) Role: Director
Location
Norrbyn, 905 71 Hörnefors Norrbyn, 90571 Hörnefors

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 manager for university unit of 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.

At Umeå Marine Sciences Centre, where I am the director, we support marine research and education with marine research infrastructure. This encompasses research vessels, boats, laboratories, and analyses of basic variables. Our mesocosm experiment facility can simulate stratification in the water column, include sediment and create ice cover.

Contact me for degree projects within these subject fields.

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
Global Biogeochemical Cycles, Washington, D.C: American Geophysical Union (AGU) 2004, Vol. 18 : 4021-4028
Algesten, Grete; Wikner, Johan; Sobek, Sobek; et al.
Bottniska viken: årsrapport från den marina miljöövervakningen. 2003, Skydd av havsområden gagnar fisken, Hörnefors: Umeå marina forskningscentrum (UMF) 2004 : 11-13
Andersson, Agneta; Wikner, Johan
Aquatic Microbial Ecology, Vol. 37, (2) : 137-148
Langenheder, Silke; Kisand, Veljo; Lindström, Eva S; et al.
Marine Ecology Progress Series, Inter-Research 2004, Vol. 268 : 13-29
Sandberg, Johannes; Andersson, Agneta; Johansson, S; et al.
Bottniska viken: årsrapport från den marina miljöövervakningen. 2003, Skydd av havsområden gagnar fisken, Hörnefors: Umeå marina forskningscentrum (UMF) 2004 : 31-35
Wikner, Johan; Andersson, Agneta; Johansson, Sif; et al.
Applied and Environmental Microbiology, American Society for Microbiology 2003, Vol. 69, (6) : 3607-3616
Kisand, Veljo; Wikner, Johan
Journal of Microbiological Methods, Vol. 54, (2) : 183-191
Kisand, Veljo; Wikner, Johan
FEMS Microbiology Ecology, Vol. 45, (2) : 189-202
Langenheder, Silke; Kisand, Veljo; Wikner, Johan; et al.
Applied and Environmental Microbiology, American Society of Microbiology 2002, Vol. 68, (1) : 379-388
Kisand, Veljo; Cuadros, Rocio; Wikner, Johan
Aquatic Microbial Ecology, Oldendorf: Inter-Research 1999, Vol. 19, (1) : 47-56
Bertilsson, Stefan; Stepanauskas, Ramonas; Cuadros-Hansson, Rocio; et al.
Aquatic Microbial Ecology, Oldendorf: Inter-Research 1999, Vol. 17, (3) : 289-299
Wikner, Johan; Cuadros, Rocio; Jansson, Mats
Aquatic Microbial Ecology, Oldendorf: Inter-Research 1999, Vol. 20, (3) : 245-260
Wikner, Johan; Hagström, Åke
Applied and Environmental Microbiology, American Society for Microbiology 1998, Vol. 64, (9) : 3246-3255
Blackburn, Nicholas; Hagström, Åke; Wikner, Johan; et al.

Research groups

Group member
Published: 03 Jun, 2021
Published: 08 Nov, 2019