Blar i NIVA Open Access Archive på forfatter "Höglund, Erik"
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Neuroendocrine indicators of allostatic load reveal the impact of environmental acidification in fish
Höglund, Erik; Korzan, Wayne; Åtland, Åse; Haraldstad, Tormod; Høgberget, Rolf; Mayer, Ian; Øverli, Øyvind (Peer reviewed; Journal article, 2020)When mobilized from surrounding soils and binding to gills at moderately low pH, aluminum (Al) cations can adversely affect fish populations. Furthermore, acidification may lead to allostatic overload, a situation in which ... -
No additional stress of sublethal gas supersaturation in a landlocked population of Atlantic salmon (Salmo salar) exposed to environmental acidification
Höglund, Erik; Loland, Lifen Zhou; Høgberget, Rolf; Skov, Peter Vilhelm; Velle, Gaute (Peer reviewed; Journal article, 2024)The landlocked Atlantic salmon population “bleke” faces extinction due to environmental acidification (EA) and hydropower expansion in the Norwegian river Otra. Despite of restoration, unexpected mortality has been reported ... -
Proactive avoidance behaviour and pace-of-life syndrome in Atlantic salmon
Damsgård, Børge; Evensen, Tor Hatten; Øverli, Øyvind; Gorissen, Marnix; Ebbesson, Lars O.E.; Rey, Sonia; Höglund, Erik (Journal article; Peer reviewed, 2019)Individuals in a fish population differ in key life-history traits such as growth rate and body size. This raises the question of whether such traits cluster along a fast-slow growth continuum according to a pace-of-life ... -
The social-ecological value of recreational fishing for sea trout; a potential for further development of the experience industry in Aust-Agder? (TROUT XP)
Johansen, Kurt; Moland, Esben; Höglund, Erik (NIVA-rapport;7356, Research report, 2019)Prosjektet undersøkte hvilken betydning det å få sjøørret har for fritidsfiskere i form av fiskeglede og videre hva som er viktig for en god fiskeopplevelse. Bakgrunnen for dette er å få i stand et europeisk samarbeid og ... -
Tryptophan metabolic pathways and brain serotonergic activity: A comparative review
Höglund, Erik; Øverli, Øyvind; Winberg, Svante (Journal article; Peer reviewed, 2019)The essential amino acid L-tryptophan (Trp) is the precursor of the monoaminergic neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). Numerous studies have shown that elevated dietary Trp has a suppressive effect on ...