Browsing Brage IMR by Author "Hansen, Tom"
Now showing items 41-45 of 45
-
The effect of different photoperiods on growth and smoltification in Atlantic salmon (Salmo salar)
Stefansson, Sigurd O.; Hansen, Tom; Nævdal, Gunnar; Torrissen, Ole (ICES CM Documents;1985/F:32, Working paper, 1985)Photoperiod has been implicated as an effective mediator of growth and smelting in Atlantic salmon (Salmo salar). To investigate this 0+ parr of Atlantic salmon were treated with three different photoperiods: 24Light:0Dark; ... -
The effect of illumination on alevins of Atlantic salmon (Salmo salar) and rainbow trout (S. gairdneri), incubated on different substrates
Nortvedt, Ragnar; Hansen, Tom; Holm, Marianne; Torrissen, Ole (ICES CM Documents;1985/F:27, Working paper, 1985)Atlantic salmon (Salmo salar) and rainbow trout (S. gairdneri) eggs were incubated in plexi-glass aquariums. After hatching, alevins were kept in darkness, two groups of each species without substrate, two groups in ... -
The transfer of Atlantic salmon (Salmo salar) with constricted yolk sacs to an artificial hatching substrate
Hansen, Tom (ICES CM Documents;1985/F:25, Working paper, 1985)Atlantic salmon larvae were transferred from a flat screened hatching tray to an artificial hatching substrate when all larvae had developed yolk sac constrictions. The transfer increased the growth rate and the yolk ... -
Time of vaccination influences development of adhesions, growth and spinal deformities in Atlantic salmon Salmo salar
Berg, Arne; Rødseth, Odd Magne; Tangerås, Arild; Hansen, Tom (Journal article; Peer reviewed, 2006-04-06)In August 1998, 3000 Atlantic salmon Salmo salar L. parr were divided into 7 groups with 2 replicates. Every 6 wk until March of the following year 1 group was vaccinated. One group was held as an unvaccinated control. The ... -
Vekstmønster hos laksepar - styring og konsekvenser
Skilbrei, Ove; Hansen, Tom (Rapport fra senter for havbruk;1993 Nr. 10, Working paper, 1993)