Stable isotope profiling for large-scale evaluation of feed efficiency in Atlantic salmon (Salmo salar )

2019 ◽  
Vol 50 (4) ◽  
pp. 1153-1161 ◽  
Author(s):  
Hanne Dvergedal ◽  
Jørgen Ødegård ◽  
Liv Torunn Mydland ◽  
Margareth Øverland ◽  
Jon Øvrum Hansen ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Feed Efficiency ◽  
Large Scale ◽  
Scale Evaluation ◽  
Atlantic Salmon Salmo Salar

Large-Scale Escapes of Farmed Atlantic Salmon (Salmo salar) into Norwegian Rivers Threaten Natural Populations

1991 ◽  
Vol 48 (3) ◽  
pp. 426-428 ◽  
Author(s):  
D. Gausen ◽  
V. Moen
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Large Scale ◽  
Natural Populations ◽  
Genetic Introgression ◽  
Fish Farms ◽  
Farmed Salmon ◽  
Atlantic Salmon Salmo Salar ◽  
Farmed Atlantic Salmon ◽  
And Behavior

We present data on Atlantic salmon (Salmo salar) which show that escaped farmed salmon enter Norwegian rivers in great numbers. Escaped farmed salmon comprised a substantial proportion of the mature salmon present on the spawning grounds in autumn. A potential for large-scale genetic introgression thus exists. The sex ratios, length distributions, and times of ascent of wild and farmed salmon differed significantly, reflecting major variations in biology and behavior. High proportions of farmed salmon (> 20%) were found only in rivers having fish farms situated closer than 20 km from the outlet.

Parentage and grandparentage assignment with known and unknown matings: application to Connecticut River Atlantic salmon restoration

2001 ◽  
Vol 58 (9) ◽  
pp. 1812-1821 ◽  
Author(s):  
Benjamin H Letcher ◽  
Tim L King
Keyword(s):  
Genetic Diversity ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Computer Simulations ◽  
Large Scale ◽  
Parentage Assignment ◽  
Connecticut River ◽  
Atlantic Salmon Salmo Salar ◽  
In The Wild ◽  
Assignment Success

Large-scale use of parentage assignment of stocked Connecticut River, U.S.A., Atlantic salmon (Salmo salar) fry to determine stocking tributary of emigrating smolts and returning adults requires both parentage assignment and grandparentage assignment. Using computer simulations, we explored the levels of genetic diversity necessary to provide adequate parentage and grandparentage assignment. When matings were known, as in a hatchery, 95% correct grandparentage assignment typically required at least twofold more alleles per locus than did 95% correct parentage assignment. Parentage assignment with unknown matings (as in the wild when parental genotypes can be assayed) required an intermediate number of alleles per locus and grandparentage assignment with unknown matings required the greatest genetic diversity. Computer simulations using empirical parental genotypes (14 loci) and known P1 matings indicated that the genetic diversity of Connecticut River Atlantic salmon broodstock is sufficient to assign all F1 and 97% of F2 offspring to the correct set of two parents or four grandparents, respectively. Grandparentage assignment with unknown P1 matings was ineffective (assignment success = 20%). These results indicate that the combination of parentage and grandparentage assignment can be used as a non-lethal, permanent, heritable "mark" to identify stocking tributary or other management directed characteristics of stocked fry.

Family differences in feed efficiency in Atlantic salmon (Salmo salar)

Aquaculture ◽  
2004 ◽  
Vol 241 (1-4) ◽  
pp. 169-177 ◽  
Author(s):  
Kari Kolstad ◽  
Barbara Grisdale-Helland ◽  
Bjarne Gjerde
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Feed Efficiency ◽  
Atlantic Salmon Salmo Salar

Development of a large-scale juvenile density model to inform the assessment and management of Atlantic salmon (Salmo salar) populations in Scotland

2019 ◽  
Vol 96 ◽  
pp. 303-316 ◽  
Author(s):  
Iain A. Malcolm ◽  
Karen J. Millidine ◽  
Ross S. Glover ◽  
Faye L. Jackson ◽  
Colin P. Millar ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Large Scale ◽  
Density Model ◽  
Atlantic Salmon Salmo Salar ◽  
Juvenile Density

Effects of high-ash diets on growth, feed efficiency, and zinc status of juvenile Atlantic salmon (Salmo salar)

Aquaculture ◽  
1992 ◽  
Vol 106 (3-4) ◽  
pp. 345-355 ◽  
Author(s):  
Karl D. Shearer ◽  
Amund Maage ◽  
Johannes Opstvedt ◽  
Harald Mundheim
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Feed Efficiency ◽  
Zinc Status ◽  
Atlantic Salmon Salmo Salar ◽  
Juvenile Atlantic Salmon
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