I study size-dependent interactions within and between fish species and effects of fishing and climate change on size structures and fish population dynamics.
The unifying theme in my research is on size structured trophic interactions in ecosystems with special emphasis on emergent effects of variation in size dependent resource use and resource abundance on fish growth size structure, recruitment and population dynamics in lake and marine ecosystems.
My research explores fundamental ecological processes including cannibalistic and intra guild predation interactions between piscivores and small prey fish. More recent studies include how lake bathymetry and habitat specific primary production influence ontogenetic niche shifts, growth and size structure in Arctic char and brown trout populations and how availability of juvenile stream habitats influence growth and size structure of brown trout.
To end, present studies using intra guild predation theory to understand how invasive minnows and climate change interact to impact Arctic char and brown trout populations in Arctic lakes.