Changes in Proximate Composition and Estimates of Energetic Costs During Upstream Migration and Spawning in Atlantic Salmon Salmo salar

10.2307/5987 ◽  
1997 ◽  
Vol 66 (3) ◽  
pp. 425 ◽  
Author(s):  
N. Jonsson ◽  
B. Jonsson ◽  
L. P. Hansen
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Proximate Composition ◽  
Upstream Migration ◽  
Energetic Costs ◽  
Atlantic Salmon Salmo Salar

Atlantic Salmon Salmo salar upstream migration delay in a large hydropower reservoir

2020 ◽  
Author(s):  
Amanda B. Babin ◽  
Stephan Peake ◽  
Tommi Linnansaari ◽  
R. Allen Curry ◽  
Mouhamed Ndong ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Upstream Migration ◽  
Atlantic Salmon Salmo Salar ◽  
Hydropower Reservoir

Evidence of Adaptive Polygenic Variation Between Two Populations of Atlantic Salmon (Salmo salar) Native to Tributaries of the S. W. Miramichi River, N.B.

1981 ◽  
Vol 38 (3) ◽  
pp. 321-333 ◽  
Author(s):  
Brian E. Riddell ◽  
William C. Leggett ◽  
Richard L. Saunders
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Proximate Composition ◽  
Phenotypic Expression ◽  
Directional Selection ◽  
Heritable Variation ◽  
Body Morphology ◽  
Atlantic Salmon Salmo Salar ◽  
Two Populations ◽  
Polygenic Variation

Breeding experiments were conducted to test the hypothesis that spatial homeostasis in growth and proximate composition and geographic variation in body morphology and timing of migration in juvenile Atlantic salmon (Salmo salar) have an adaptive basis. The populations studied were Rocky Brook and Sabbies River, tributaries of the Southwest Miramichi River, New Brunswick. Growth rates and proximate composition were very similar in the two populations under hatchery conditions. Genetic contributions to homeostasis in these traits were largely additive. The phenotypic expression of migratory behavior and the genetic control of timing were not quantifiable. A genetic basis to interpopulation variation in body morphology was demonstrated. Progeny from Rocky Brook which exhibits higher flows had more fusiform bodies and longer fins than progeny from Sabbies River when reared under identical conditions. Heritable variation in morphology and a demonstrated directional selection for greater fin size in high velocity environments support the hypothesis that these traits are adaptive. Adaptive polygenic variation between local populations stresses the need to delineate stocks on a functional basis so that species can be managed without significant loss of fitness and/or depletion of genetic variation in natural populations.Key words: quantitative genetics, heritability, adaptation, morphology, growth, proximate composition, migration, Atlantic salmon, interdemic variation, directional selection

Atlantic Salmon (Salmo salar) of the Leaf River, Ungava Bay

1976 ◽  
Vol 33 (11) ◽  
pp. 2616-2621 ◽  
Author(s):  
R. L.G. Lee ◽  
G. Power
Keyword(s):  
Atlantic Salmon ◽  
Fresh Water ◽  
Salmo Salar ◽  
Sex Ratios ◽  
Fork Length ◽  
Upstream Migration ◽  
Atlantic Salmon Salmo Salar ◽  
Length Range ◽  
Heavy Mortality

The Leaf River supports the most northerly known population of anadromous Atlantic salmon (Salmo salar) in Canada. River growth averaged 40–50 mm/yr, smolts averaged 258 mm fork length (range 190–300 mm) and 5.3 yr (range 4+ to 7+). Many males matured in fresh water and either incurred heavy mortality or became residual. Sex ratios among smolts were 5:1 in favor of females and among adults 3:1 in favor of females. Female 2-sea-winter salmon accounted for 75% of the fresh-run fish. Upstream migration peaked in August: kelts were still resident in the river 11 and 12 mo later.

scholarly journals Proximate and mineral analysis of Atlantic salmon (Salmo Salar) cultivated in Bulgaria

2013 ◽  
Vol 29 (3) ◽  
pp. 571-579 ◽  
Author(s):  
A. Atanasoff ◽  
G. Nikolov ◽  
Y. Staykov ◽  
G. Zhelyazkov ◽  
I. Sirakov
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Proximate Composition ◽  
Microwave Digestion ◽  
Nutrient Composition ◽  
Potassium Sodium ◽  
Composition Data ◽  
Atlantic Salmon Salmo Salar ◽  
Sodium Calcium ◽  
Calcium Phosphorus

Problem statement: Only limited information exists on nutrients in salmonoids meat in Bulgaria, which may to be different and vary to a greater extent than the nutrient composition of other fish items. The present paper is aimed to determine the proximate composition, macro and trace elements of Atlantic salmon`s meat. These data could be helpful in judging the value of nutrient composition data as a base for dietary recommendations. Organisms: 12 species of Atlantic salmon (Salmo salar). Approach: The aim of this study was to determine the proximate composition and levels of iron, potassium, sodium, calcium, phosphorus, magnesium, copper, selenium and zinc in Atlantic salmon cultivated for the first time in Bulgaria. The content of protein, fat and ash and concentrations of iron, potassium, sodium, calcium, phosphorus, magnesium, copper, selenium and zinc were determined by automatic systems and electro thermal atomic absorption spectrometry (ETAAS) after microwave digestion. Mean values and their respective coefficients of variation were calculated from the measured concentrations. Conclusion: In order to provide an accurate overview and to be able to calculate reliable dietary intakes, it is important to know the fish composition data.

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