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Interspecific Interactions between Native Brown Trout and Invasive Brook Trout: Insights into Behaviour and Morphology


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Title: Interspecific Interactions between Native Brown Trout and Invasive Brook Trout: Insights into Behaviour and Morphology
Authors: Lovén Wallerius, Magnus
E-mail: magnus.loven.wallerius@bioenv.gu.se
magnus.wallerius@gmail.com
Issue Date: 28-Apr-2021
University: University of Gothenburg. Faculty of Science
Institution: Department of Biological and Environmental Sciences ; Institutionen för biologi och miljövetenskap
Parts of work: Lovén Wallerius, M., Näslund, J., Koeck, B., and Johnsson, J.I. 2017. Interspecific association of brown trout (Salmo trutta) with non-native brook trout (Salvelinus fontinalis) at the fry stage. Ethology, 123: 933-941.
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Lovén Wallerius, M., Moran, V., Závorka, L., and Höjesjö, J. Asymmetric competition over space use and territory between native brown trout (Salmo trutta) and invasive brook trout (Salvelinus fontinalis). Manuscript.

Larranaga, N., Lovén Wallerius M., Guo H., Cucherousset J., and Johnsson, J.I. 2018. Invasive brook trout disrupts the diel activity and aggregation patterns of native brown trout. Canadian Journal of Fisheries and Aquatic Sciences, 76: 1052–1059.
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Závorka, L., Larranaga, N., Lovén Wallerius M., Näslund, J., Koeck, B., Wengström, N., Cucherousset, J., and Johnsson, J.I. 2020. Within-stream phenotypic divergence in head shape of brown trout associated with invasive brook trout. Biological Journal of the Linnean Society, 129: 347-355.
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Závorka, L., Lovén Wallerius, M., Kainz, M., Höjesjö, J. Linking brain volume in wild stream-dwelling brown trout with dietary supply of omega-3 fatty acids. Submitted to OIKOS, 12-04-2021.
Date of Defence: 2021-05-21
Disputation: Fredagen den 21 Maj 2021, kl. 10.00 via Zoom i föreläsningssalen, Institutionen för biologi och miljövetenskap, Medicinaregatan 18A, Göteborg.
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Keywords: Invasive species
Fish
Competition
Foraging
Management
Abstract: The introduction of non-native species represents a global threat to ecosystems and biodiversity. In Europe, the introduction of the invasive brook trout (Salvelinus fontinalis) has led to species displacement and local extinction of native brown trout (Salmo trutta) populations. Additionally, several studies have documented a convergence in feeding niche, where brown trout in sympatry with brook trout utilise terrestrial insects to a larger extent. This conflicts with the competitive exclusion ... more
ISBN: 978-91-8009-336-1
978-91-8009-337-8
URI: http://hdl.handle.net/2077/68122
Appears in Collections:Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet
Doctoral Theses / Doktorsavhandlingar Institutionen för biologi och miljövetenskap

 

 

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