Pär Byström
(Research Director, Associate Professor)

Climate Impacts Research Centre
Department of Ecology and Environmental Sciences

ORCID-ID: 0000-0001-7311-0989

Research Summary

My research focuses on the factors that determine the abundance, growth and size structure of predatory fish. I am particularly interested in how populations of Arctic char (Salvelinus alpinus) and brown trout (Salmo trutta) but also perch (Perca fluviatilis) and pike (Esox lucius) are influenced by the environment and the interactions within and between these species and their food resources. I work in temperate and arctic aquatic ecosystems from coast to mountains. My research also involves collaborations with Sami villages and county boards to understand how fish populations are affected by climate change and fishing for future preservation and sustainable use of fish population.

Current Projects

Our Projects

Big or small fish for harvesting? Effects of ontogenetic habitat shifts and bottlenecks in recruitment

Targeting managers of trout populations, the project will provide tools to predict how different brown trout populations respond to different levels of fishing mortality and different management interventions.

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LOREX (The Limnology and Oceanography Research Exchange)

The Limnology and Oceanography Research Exchange (LOREX) is a formal training and professional development program in international research collaboration in the aquatic sciences offered by the Association for the Sciences of Limnology and Oceanography (ASLO).

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Benthic and pelagic production in coastal ecosystems of the northern Baltic Sea

The northern basins of the Baltic Sea are relatively shallow systems, implying that coastal processes can be of great significance to this area. It is likely that benthic primary production is an important part of the basal production in coastal ecosystems.

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Climate change induced regime shifts in Northern lake ecosystems

This project brings together new tools and concepts in biogeochemistry and ecology, with the aims of understanding and predicting the effects of climate change on the delivery of two major ecosystem services, fish production and the net greenhouse gas balance of Northern lakes.

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Monitoring and management of Arctic lakes in a changing climate

The purpose of this study is to improve knowledge and monitoring of climate impacts on Arctic lakes. Specific aims include to quantify and provide threshold variables for climate change-induced regime shifts in fish resource use and production, and to develop tools and guidelines to be used in monitoring programs.

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