Cristin-resultat-ID: 1353642
Sist endret: 20. januar 2017 11:00
NVI-rapporteringsår: 2016
Resultat
Vitenskapelig artikkel
2016

Behaviour of spawning Atlantic salmon and brown trout during ramping events

Bidragsytere:
  • Christian Haas
  • Peggy Zinke
  • Knut Wiik Vollset
  • Julian Friedrich Sauterleute og
  • Helge Skoglund

Tidsskrift

Journal of Applied Water Engineering and Research
ISSN 2324-9676
e-ISSN 2324-9676
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2016
Publisert online: 2016
Trykket: 2016
Volum: 4
Hefte: 1
Sider: 25 - 30

Finansiering

  • Norges forskningsråd

    • Prosjektkode: 193818

Beskrivelse Beskrivelse

Tittel

Behaviour of spawning Atlantic salmon and brown trout during ramping events

Sammendrag

Under-water video was used to observe the behaviour of adult Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) on a spawning ground during ramping events in a hydro-peaked river. The water depth in the reach was continuously recorded at a stream gauge and water depths in front of the cameras were reconstructed by means of a hydrodynamic model. Fish species, size, spawning-related activity, chasing behaviour and a swimming-speed-related activity level were recorded for each camera in 10-min intervals. Decreases in flow occurring during down-ramping led to higher activity levels and spawning interruptions. Trout were observed in the reach down to 0.13 m and salmon down to 0.17 m. The salmon was observed preparing nests at a water level of 0.30 m. Salmon used on average 122 min after the beginning of an up-ramping event to return to the spawning site and start digging again.

Bidragsytere

Christian Haas

  • Tilknyttet:
    Forfatter
    ved Tyskland

Peggy Zinke

  • Tilknyttet:
    Forfatter
    ved Energisystemer ved SINTEF Energi AS

Knut Vollset

Bidragsyterens navn vises på dette resultatet som Knut Wiik Vollset
  • Tilknyttet:
    Forfatter
    ved Uni Research Miljø ved NORCE Norwegian Research Centre AS

Julian Sauterleute

Bidragsyterens navn vises på dette resultatet som Julian Friedrich Sauterleute
  • Tilknyttet:
    Forfatter
    ved Energisystemer ved SINTEF Energi AS

Helge Skoglund

  • Tilknyttet:
    Forfatter
    ved Uni Research Miljø ved NORCE Norwegian Research Centre AS
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