| Avaa | Heggberget, Tor G. Hesthagen, Trygve
| Population estimates of young Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., by electrofishing in two small streams in North Norway | linkki | artikkeli | arviointi, atlantinlohi, kalakannat, lohi - salmo salar, Norja, sähkökalastus, taimen, virtavedet | | | 1979 | 7 | | | Eripainos: Institute of Freshw... | I-Kalatutkimus: Lohi (avokotelo 8) ; I-Kalatutkimus: Taimen (avokotelo 7) |
| Avaa | Hesthagen, Trygve Hansen, Lars Petter
| Estimates of the annual loss of Atlantic salmon, Salmo salar L., in Norway due to acidification | linkki | artikkeli | atlantinlohi, happamoituminen, lohi - salmo salar, Norja | | | 1991 | 7 | | | Eripainos: Aquaculture and Fis... | I-Kalatutkimus: Lohi (avokotelo 8) |
| Avaa | Hesthagen, Trygve Jonsson, Bror Ugedal, Ola Forseth, Torbjø̞rn
| Habitat use and life history of brown trout (Salmo trutta) and Arctic charr (Salvelinus alpinus) in some acidity lakes in central Norway | | artikkeli | happamoituminen, nieriä - rautu, Norja, taimen | | | 1997 | 14 | | | Eripainos: Hydrobiologia 348: ... | I-Kalatutkimus: Nieriä (avokotelo 4) |
| Avaa | Hesthagen, Trygve
| Movements of brown trout, Salmo trutta, and juvenile Atlantic salmon, Salmo salar, in a coastal stream in northern Norway | linkki | artikkeli | atlantinlohi, lohi - salmo salar, Norja, rannikkovedet, taimen, virtavedet | | | 1988 | 15 | | | Eripainos: J. Fish Biol. (1988... | I-Kalatutkimus: Lohi (avokotelo 8) |