• Nettverk for biologisk mangfold i ferskvann – samlerapport 2010. Atna- og Vikedalsvassdragene 

      Bongard, Terje; Brettum, Pål; Finstad, Anders Gravbrøt; Fjellheim, Arne; Halvorsen, Godtfred A.; Halvorsen, Gunnar; Hesthagen, Trygve H.; Hindar, Atle; Papinska, Katarzyna; Saksgård, Randi J.; Schneider, Susanne; Skancke, Liv Bente; Skjelbred, Birger; Walseng, Bjørn (NINA rapport;598, Research report, 2010)
      Denne rapporten oppsummerer resultatene fra overvåkingen av Atna- og Vikedalsvassdragene i programmet for overvåking av biologisk mangfold i ferskvann, fram til 2009. Kvalitetselementene som overvåkes er påvekstalger, ...
    • Ontogenetic timing of density dependence: location-specific patterns reflect distribution of a limiting resource 

      Teichert, Maxim; Einum, Sigurd; Finstad, Anders Gravbrøt; Ugedal, Ola; Forseth, Torbjørn (Journal article; Peer reviewed, 2013)
      Theoretical considerations suggest that the relative abundance of age-specific limiting resources determines the ontogenetic timing of density dependence. Structural shelters may represent one such resource which can become ...
    • Population regulation in the tadpole shrimp Lepidurus arcticus 

      Klausen, Torstein Rød (Master thesis, 2012)
      A metapopulation consists of several subpopulations that show limited degree of internal regulation, and are not viable alone in the long term. Instead, each subpopulation is sustained over time by migration and re-colonization ...
    • Salmonid fishes in a changing climate : the winter challenge 

      Finstad, Anders Gravbrøt (Doktoravhandlinger ved NTNU, 1503-8181; 2005:199, Doctoral thesis, 2005)
      In the present thesis, winter mortality was linked to levels of stored energy by a field study from a northern Atlantic salmon population where population frequency distributions for specific somatic energy were compared ...
    • When soft waters becomes softer; drivers of critically low levels of Ca in Norwegian lakes 

      Hessen, Dag Olav; Andersen, Tom; Tominaga, Koji; Finstad, Anders Gravbrøt (Journal article; Peer reviewed, 2017)
      In this study, we analyzed long-term trends in calcium (Ca) concentrations for 70 Norwegian lakes spanning a broad geographical range and for a wide range of ambient drivers. A striking decline in Ca concentrations was ...
    • Ørekyt i Namsenvassdraget. Utbredelse, spredningsrisiko og tiltak 

      Thorstad, Eva Bonsak; Sandlund, Odd Terje; Heggberget, Tor Gravråk; Finstad, Anders Gravbrøt; Museth, Jon; Berger, Hans Mack; Hesthagen, Trygve H.; Berg, Ole Kristian (NINA rapport;155, Research report, 2006)
      Undersøkelser i Namsenvassdraget i 2005 viste at ørekyt forekommer i tette bestander i innsjøer og flyer øverst i vassdraget. I Otersjøen øverst i Sanddøla har ørekyt forekommet i solide bestander siden 1960-tallet. I ...