Information for students, faculty and staff regarding COVID-19. (Updated: 1 July 2020)

Skip to content
printicon
Staff photo Pär Byström

Pär Byström

I study size-dependent interactions within and between fish species and effects of fishing and climate change on population dynamics and ecological processes.

Works at

Affiliation
Location
KB. H4, Linneus väg 6, Umeå, A4.42.15 Umeå universitet, 901 87 Umeå

My general research focus on size dependent predatory and competitive interactions within and between fish species and how these, together with abiotic factors, affect the size structure, density, production and dynamics of fish populations and fish communities. More specifically, present main research approaches focus on how fish populations, fish communities and ecosystems are affected by climate change and fisheries. The climate change research integrates studies of abiotic factors and its impact on biotic processes, focusing on identifying mechanisms and thresholds of climate change effects on fish production and ecosystem productivity. Key aspects of this research are how temperature, light availability and concentrations of terrestrial organic carbon affect productivity, resource use and energy pathways in aquatic food webs, from algae and bacteria at the base of the food web, through intermediate consumers (zooplankton and macroinvertebrates) to top consumers like fish.

The research on the effects of fishing focuses on how different types of fisheries and fishing mortality, size-dependent interactions between fish individuals and the variation in productivity between different habitats(and resources)affect the densities and size structure of fish populations. Another part of this research study the potential use of estimated concentrations of species-specific fish DNA in water samples as measures of fish abundance. The purpose of this research is to identify sustainable harvest regimes and to developed long-term monitoring methods and management strategies of lake fish top consumer populations.

Systems studied are mainly the Bothnian bay and Bothnian sea and boreal and arctic lakes and streams. The research includes comparative field studies along different climate gradients and experimental studies at different temporal and spatial scales from aquaria, to experimental pond ecosystems and whole lake experiments. Fish species mainly studied are three- and nine-spined sticklebacks, perch, brown trout and Arctic char.

 

Research area

Freshwater ecology

Research projects

Climate change induced regime shifts in Northern lake ecosystems

Monitoring and management of Arctic lakes in a changing climate

Estimating fish abundance in lakes via molecular methods based on environmental DNA (eDNA

2019
Environmental Evidence, BioMed Central 2019, Vol. 8, (1)
Macura, Biljana; Byström, Pär; Airoldi, Laura; et al.
2019
ICES Journal of Marine Science, Oxford University Press 2019, Vol. 76, (6) : 1653-1665
Olsson, Jens; Jakubaviciute, Egle; Kaljuste, Olavi; et al.
2019
Global Change Biology, John Wiley & Sons 2019, Vol. 25 : 504-521
Vasconcelos, Francisco Rivera; Diehl, Sebastian; Rodríguez, Patricia; et al.
2018
Hydrobiologia, Vol. 805, (1) : 131-146
Degerman, Rickard; Lefébure, Robert; Byström, Pär; et al.
2018
Scientific Reports, Nature Publishing Group 2018, Vol. 8
Hamdan, Mohammed; Byström, Pär; Hotchkiss, Erin R.; et al.
2018
Science of the Total Environment, Elsevier 2018, Vol. 615 : 608-614
Lagesson, Annelie; Brodin, Tomas; Fahlman, Johan; et al.
2018
Limnology and Oceanography, Wiley-Blackwell 2018, Vol. 63, (5) : 2171-2178
Seekell, David A.; Byström, Pär; Karlsson, Jan
2018
Ecosystems (New York. Print), Springer 2018, Vol. 21, (6) : 1255-1268
Vasconcelos, Rivera Francisco; Diehl, Sebastian; Rodríguez, Patricia; et al.
2017
Oecologia, Vol. 183, (2) : 587-595
Hedström, Per; Bystedt, David; Karlsson, Jan; et al.
2016
Ambio, Vol. 45, (6) : 635-648
Ask, Jenny; Rowe, Owen; Brugel, Sonia; et al.
2016
Ecology and Evolution, Vol. 6, (14) : 4753-4760
Calboli, Federico C. F.; Byström, Pär; Merila, Juha
2016
Science of the Total Environment, Vol. 568 : 208-215
Lagesson, Annelie; Fahlman, Johan; Brodin, Tomas; et al.
2016
Environmental Evidence, BMC 2016, Vol. 5, (1) : 1-8
Macura, Biljana; Lonnstedt, Oona M.; Byström, Pär; et al.
2016
Freshwater Biology, Vol. 61, (4) : 472-485
Norlin, Linnea; Byström, Pär; Karlsson, Jan; et al.
2016
Aquatic Sciences, Vol. 78, (4) : 717-725
Rodriguez, Patricia; Byström, Pär; Geibrink, Erik; et al.
2016
Regional Studies in Marine Science, Vol. 3 : 8-17
Rowe, Owen F.; Guleikova, Liudmyla; Brugel, Sonia; et al.
2016
Ecology, Vol. 97, (10) : 2580-2592
Vasconcelos, Francisco Rivera; Diehl, Sebastian; Rodriguez, Patricia; et al.
2015
Ambio, Vol. 44, (Suppl 3) : S462-S471
Byström, Pär; Bergström, Ulf; Hjälten, Alexander; et al.
2015
Freshwater Biology, Wiley-Blackwell 2015, Vol. 60, (1) : 78-88
Jonsson, Micael; Hedström, Per; Stenroth, Karolina; et al.
2015
Ecology, Ecological Society of America 2015, Vol. 96, (11) : 2870-2876
Karlsson, Jan; Bergström, Ann-Kristin; Byström, Pär; et al.
2014
Limnology and Oceanography, Vol. 59, (5) : 1800-1803
Karlsson, Jan; Berggren, M.; Ask, Jenny; et al.
2014
Journal of Experimental Marine Biology and Ecology, Elsevier 2014, Vol. 451 : 82-90
Lefébure, Robert; Larsson, S.; Byström, Pär
2013
PLoS ONE, Vol. 8, (7) : e70404-
Byström, Pär; Ask, Per; Andersson, Jens; et al.
2013
BIOLOGY AND MANAGEMENT OF COREGONID FISHES - 2011 : 189-201
Larsson, Stefan; Byström, Pär; Berglund, Johnny; et al.
2013
Global Change Biology, John Wiley & Sons 2013, Vol. 19, (5) : 1358-1372
Lefebure, Robert; Degerman, Rickard; Andersson, Agneta; et al.
2012
Freshwater Biology, Vol. 57, (4) : 847-857
Byström, Pär; Huss, Magnus; Persson, Lennart
2012
Limnology and Oceanography, Vol. 57, (4) : 1042-1048
Karlsson, Jan; Berggren, Martin; Ask, Jenny; et al.
2011
Journal of Fish Biology, Vol. 79, (7) : 1815-1827
Lefébure, Robert; Larsson, S; Byström, Pär
2011
Fundamental and Applied Limnology, Stuttgart: E. Schweizerbart 2011, Vol. 178, (4) : 315-324
Åhlén, Emma; Byström, Pär; Korsman, Tom; et al.
2010
Oikos, John Wiley & Sons, Inc. 2010, Vol. 119, (2) : 384-392
Huss, Magnus; Byström, Pär; Persson, Lennart
2010
Oikos, Vol. 119 : 1796-1804
Huss, Magnus; Byström, Pär; Persson, Lennart
2010
Canadian Journal of Fisheries and Aquatic Sciences, Vol. 67, (2) : 401-416
van Kooten, Tobias; Andersson, Jens; Byström, Pär; et al.
2009
Ecology, Washington, DC, USA: Ecological Society of America 2009, Vol. 90, (7) : 1923-1932
Ask, Jenny; Karlsson, Jan; Persson, Lennart; et al.
2009
Limnology and Oceanography, American Society of Limnology and Oceanography, Inc. 2009, Vol. 54, (6) : 2034-2040
Ask, Jenny; Karlsson, Jan; Persson, Lennart; et al.
2009
Nature, Vol. 460 : 506-509
Karlsson, Jan; Byström, Pär; Ask, Jenny; et al.
2008
Oecologia, Berlin / Heidelberg: Springer 2008, Vol. 158, (2) : 249-257
Huss, Magnus; Byström, Pär; Persson, Lennart
2008
Canadian Journal of Fisheries and Aquatic Sciences, EBSCO Host 2008, Vol. 65, (10) : 2149-2156
Huss, Magnus; Byström, Pär; Strand, Åsa; et al.
2007
American Naturalist, Vol. 169 : 820-829
Andersson, Jens; Byström, Pär; Claessen, D; et al.
2007
Freshwater Biology, John Wiley & Sons, Inc 2007, Vol. 52, (7) : 1271–1280-
Byström, Pär; Karlsson, Jan; Nilsson, Per; et al.
2007
Oecologia, Berlin / Heidelberg: Springer 2007, Vol. 153, (1) : 57-67
Huss, Magnus; Persson, Lennart; Byström, Pär
2007
Journal of Animal Ecology, Vol. 76, (1) : 94-104
Persson, Lennart; de Roos, André M; Byström, Pär
2006
J Anim Ecol, Vol. 75, (2) : 434-44
Byström, Pär
2006
Oikos, Vol. 115 : 43-52
Byström, Pär; Andersson, J; Kiessling, A; et al.
2005
Limnol. Oceanogr., Vol. 50 : 538-543
Karlsson, J; Byström, P
2004
Oikos, Vol. 104 : 109-121
Byström, P; Andersson, J; Persson, L; et al.
2004
Oikos, Vol. 106 : 263-274
Persson, L; Byström, P; Wahlström, E; et al.
2004
Ecological Monographs, Vol. 74 : 135-157
Persson, L; Claessen, D; De Roos,, A M; et al.