| 1. |
|
|
| 2. |
|
|
| 3. |
- Johnsson, JI, et al.
(författare)
-
Fitness-related effects of growth investment in brown trout under field and hatchery conditions
- 2000
-
Ingår i: JOURNAL OF FISH BIOLOGY. - : ACADEMIC PRESS LTD. - 0022-1112. ; 57:2, s. 326-336
-
Tidskriftsartikel (refereegranskat)abstract
- The mortality of brown trout Salmo trutta over winter in a near-natural stream was not significantly increased by growth hormone (GH) treatment, but lipid reserves were lower in GN-treated fish. As GH-treated trout grew Faster than controls. GH appears to
|
|
| 4. |
- Lepage, O, et al.
(författare)
-
Differential stress coping in wild and domesticated sea trout
- 2000
-
Ingår i: BRAIN BEHAVIOR AND EVOLUTION. - 0006-8977. ; 56:5, s. 259-268
-
Tidskriftsartikel (refereegranskat)abstract
- Offspring of wild and sea-ranched [domesticated) sea trout (Salmo trutta) originating from the same river, were reared under identical hatchery conditions from the time of fertilization. At one year of age individual fish were exposed to two standardized
|
|
| 5. |
|
|
| 6. |
- Petersson, E, et al.
(författare)
-
Male-male competition and female choice in brown trout
- 1999
-
Ingår i: ANIMAL BEHAVIOUR. - : ACADEMIC PRESS LTD. - 0003-3472. ; 57, s. 777-783
-
Tidskriftsartikel (refereegranskat)abstract
- In some salmonid species, the females have been assumed to choose their mates on the size of the male's adipose fin. This hypothesis was tested in a stream water aquarium, in which 19 brown trout, Salmo trutta, females were allowed to choose between two m
|
|
| 7. |
- Popok, Vladimir, 1966, et al.
(författare)
-
Stopping of energetic cobalt clusters and formation of radiation damage in graphite
- 2009
-
Ingår i: Physical Review B. ; 80:20
-
Tidskriftsartikel (refereegranskat)abstract
- The interaction of energetic (up to 200 eV/atom) size-selected Con clusters with HOPG is studied both experimentally and theoretically. Etching of the radiation damage areas introduced by cluster impacts provides a measure of the depth to which the collision cascades are developed and allowes a comparison of these data with the molecular dynamics simulations. Good agreement between the experimental results and modelling is obtained. It is shown that the projected range of the cluster constituents can be linearly scaled with the projected momentum (the cluster momentum divided by surface impact area). With decrease of cluster energies to ca. 10 eV/atom the transition from implantation to pinning is suggested. It is found that even after quite energetic impacts residual clusters remain intact in the shallow graphite layer. These clusters can catalyse reaction of atmospheric oxygen with damaged graphite areas under the thermal heating that leads to the formation of narrow (5-15 nm) random in shape surface channels (trenches) in the top few graphene layers. Thus, small imbedded Co nanoparticles can be used as a processing tool for graphene.
|
|
| 8. |
- Sundström, L. Fredrik, 1972, et al.
(författare)
-
Hatchery selection promotes boldness in newly hatched brown trout (Salmo trutta): implications for dominance
- 2004
-
Ingår i: Behavioral Ecology. - : Oxford University Press (OUP). - 1045-2249 .- 1465-7279. ; 15:2, s. 192-198
-
Tidskriftsartikel (refereegranskat)abstract
- By using newly hatched (approximately 2 weeks old) brown trout (Salmo trutta) from six families of wild and six families of sea-ranched origin (seventh generation), we tested the hypotheses that (1) the hatchery environment selects for increased boldness, and (2) boldness predicts dominance status. Sea-ranched trout spend their first 2 years in the hatchery before being released into the wild at the onset of seaward migration. Trout were presented with a novel object (tack) and with food (brine shrimp), and their responses were measured and scored in terms of boldness. Siblings with increasing difference in boldness were then paired in dyadic contests. Fish of sea-ranged origin were on average bolder than were fish of wild origin, and bolder individuals were more likely to become dominant regardless of origin. Boldness was not related to RNA levels, indicating that bold behavior was not a consequence of higher metabolism or growth rate. Neither was size a predictor of bold behavior or the outcome of dyadic contests. These results are consistent with studies on older life stages showing increased boldness toward predators in hatchery-selected fish, which suggests that behavioral consequences of hatchery selection are manifested very early in life. The concordance between boldness and dominance may suggest that these behaviors are linked in a risk prone-aggressive phenotype, which may be promoted by hatchery selection. However, we also found significant variation in behavioral and growth-related traits among families, suggesting that heritable variation has not been exhausted by sea-ranching procedures.
|
|
