Browsing NINA Brage by Author "Heggenes, Jan"
Now showing items 1-7 of 7
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Faglige innspill til tiltaksplan for Tokke-Vinjevassdraget
Myrvold, Knut Marius; Brabrand, Åge; Heggenes, Jan; Taugbøl, Annette; Karlsson, Sten; Saltveit, Svein Jakob (NINA Rapport;2505, Research report, 2024)Rapporten publiseres 9. desember 2024. -
Ferskvannsbiologiske undersøkelser i Tokkeåi og Bandakdeltaet. Sluttrapport for perioden 2010-2013
Kraabøl, Morten; Braband, Åge; Bremnes, Trond; Heggenes, Jan; Johnsen, Stein Ivar; Saltveit, Svein Jakob; Pavels, Henning (NINA rapport;1050, Research report, 2015)Kraabøl, M., Brabrand, Å, Bremnes, T., Heggenes, J., Johnsen, S. I., Pavels, H., Saltveit, S. J. 2015. Ferskvannsbiologiske undersøkelser i Tokkeåi. Sluttrapport for perioden 2010-2013 - NINA Rap-port 1050. 99 sider + ... -
Fiskebiologiske undersøkelser i Tokkeåi. Undersøkelser i perioden 2020 - 2022
Myrvold, Knut Marius; Brabrand, Åge; Heggenes, Jan; Taugbøl, Annette; Karlsson, Sten; Bremnes, Trond; Saltveit, Svein Jakob; Pavels, Henning (NINA Rapport;2272, Research report, 2023)Myrvold, K.M., Brabrand, Å., Heggenes, J., Taugbøl, A., Karlsson, S., Bremnes, T., Saltveit, S.J. & Pavels, H. 2023. Fiskebiologiske undersøkelser i Tokkeåi. Undersøkelser i perioden 2020 – 2022. NINA Rapport 2272. Norsk ... -
Genetic diversity, gene flow, and landscape resistance in a pond-breeding amphibian in agricultural and natural forested landscapes in Norway
Haugen, Hanne; Dervo, Børre Kind; Østbye, Kjartan; Heggenes, Jan; Devineau, Olivier; Linløkken, Arne N. (Peer reviewed; Journal article, 2023)Genetic diversity is a key part of biodiversity, threatened by human activities that lead to loss of gene flow and reduction of effective population sizes. Gene flow is a result of both landscape connectivity and ... -
Groundwater, critical habitats, and behaviour of Atlantic salmon, brown trout and Arctic char in streams
Heggenes, Jan; Bremset, Gunnbjørn; Brabrand, Åge (NINA rapport;654, Research report, 2010)Heggenes, J., Bremset, G. & Brabrand, Å. 2010. Groundwater, critical habitats, and behaviour of Atlantic salmon, brown trout and Arctic char in streams. – NINA Report 654, 28 pp Streams are characterized by turbulent ... -
Storørret i Norge. Definisjon, status, påvirkningsfaktorer og kunnskapsbehov
Museth, Jon; Dervo, Børre; Brabrand, Åge; Heggenes, Jan; Karlsson, Sten; Kraabøl, Morten (NINA Rapport;1498, Research report, 2018)Museth, J., Dervo, B., Brabrand, Å., Heggenes, J., Karlsson, S. & Kraabøl, M. 2018. Storørret i Norge. Definisjon, status, påvirkningsfaktorer og kunnskapsbehov. NINA Rapport 1498. Norsk institutt for naturforskning. ... -
Wild Mountain reindeer Rangifer tarandus tarandus winter foraging: snow-free areas a key resource for feeding
Holtan, Marijanne; Strand, Olav; Kastdalen, Leif; Bjerketvedt, Dag Kjartan; Odland, Arvid; Pape, Roland; Heggenes, Jan (Peer reviewed; Journal article, 2023)In a landscape with patchily distributed forage resources, an animal’s distribution may reflect the distribution of the resources if the population is forage-limited in time or space. This may be particularly explicit in ...