Ultimate upper lethal temperature of Atlantic salmon Salmo salar L.

1973 ◽  
Vol 51 (8) ◽  
pp. 898-900 ◽  
Author(s):  
E. T. Garside
Keyword(s):  
Atlantic Salmon ◽  
Fresh Water ◽  
Salmo Salar ◽  
National Park ◽  
Probit Analysis ◽  
Lethal Temperature ◽  
Atlantic Salmon Salmo Salar ◽  
Terra Nova

Parr (70–147 mm) of Atlantic salmon Salmo salar L. from Big Brook, Terra Nova National Park, Newfoundland, were progressively acclimated to 27.5C in fresh water of the home stream, and the upper lethal temperature was determined by probit analysis to be 27.80C ± 0.41. This is essentially the ultimate upper lethal temperature.

scholarly journals Comparison of the Fatty Acid and Triglyceride Profiles of Big Eye Tuna (Thunnus obesus), Atlantic salmon (Salmo salar) and Bighead Carp (Aristichthysnobilis) Heads

Molecules ◽  
2019 ◽  
Vol 24 (21) ◽  
pp. 3983 ◽  
Author(s):  
Jing Zhang ◽  
Ningping Tao ◽  
Yueliang Zhao ◽  
Xichang Wang ◽  
Mingfu Wang
Keyword(s):  
Fatty Acid ◽  
Atlantic Salmon ◽  
Fresh Water ◽  
Salmo Salar ◽  
Bighead Carp ◽  
Fresh Water Fish ◽  
Atlantic Salmon Salmo Salar ◽  
Thunnus Obesus ◽  
Significant Difference ◽  
Latent Structures

Big eye tuna (Thunnus obesus), Atlantic salmon (Salmo salar) and bighead carp (Aristichthys nobilis) are three representative marine and fresh water fishes. In this study, the content of total lipids (TL), triglyceride (TG) fraction, and the fatty acid profiles in the corresponding fish heads were analyzed. Meanwhile, their complicated TG molecular species were further characterized. The results showed that TG was the major lipid in these three fish heads (60.58–86.69%). Compared with other two fish heads, big eye tuna head was the most abundant in polyunsaturated fatty acids, among which eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA) accounted for 64.29% and 32.77% in the TL and TG fraction, respectively. It is also worth noting that EPA+DHA/total fatty acid (TFA) value of TL and TG fraction from bighead carp head showed no significant difference with Atlantic salmon head, a typical marine fish. There were 146 TG molecules detected in big eye tuna head, 90 in Atlantic salmon and 87 in bighead carp heads. DHA or EPA accounted for 56.12%, 22.88%, and 5.46% of the total TG molecules in these three fish heads, respectively. According to principal component analysis, orthogonal projection to latent structures-discriminant analysis and the constructed heat map, the three samples could be completely differentiated based on their TG molecule fingerprints. This study is the first to compare marine and fresh water fish from the perspective of their heads’ fatty acid and TG molecule profiles.

Trace Element Analysis of Scales from Four Populations of Norwegian Atlantic Salmon (Salmo Salar L.) for Stock Identification Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry

2005 ◽  
Vol 59 (2) ◽  
pp. 245-251 ◽  
Author(s):  
Belinda Flem ◽  
Vidar Moen ◽  
Andreas Grimstvedt
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Atlantic Salmon ◽  
Elemental Composition ◽  
Fresh Water ◽  
Salmo Salar ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled ◽  
Atlantic Salmon Salmo Salar ◽  
Plasma Mass Spectrometry

The pre-smolt stage of the scale of adult Norwegian Atlantic salmon from four populations, encompassing both farmed and wild hatchery stocks, has been analyzed by laser ablation inductively coupled plasma mass spectrometry (LA-HR-ICP-MS). The purpose of this study was to test for differences in elemental composition between stocks of Atlantic salmon that have lived in separate fresh water locations until the smoltification and natural run out or transportation to the sea-cages. The populations studied were from fish farms located at Bremanger and Sørfold, a cultivated stock from Mossa, and one wild local stock from the river Gaula. The following elements were included in the analytical protocol: Li, Mg, Ca, Cr, Mn, Fe, Zn, Sr, Ba, Pb, and U. Calcium was used as a natural internal standard. Classification of the analytical data is studied by multivariate statistical techniques such as principal component analysis (PCA). We have been able to delineate the population of Atlantic salmon ( Salmo salar L.) from Gaula and Mossa from the Bremanger and the Sørfold stock based on the ten elements analyzed. The Bremanger and Sørfold stocks were partially delineated. The differences in elemental composition in the scales, which makes the delineating of the four stocks possible, probably reflects geological differences in the bedrock at the four fresh water locations experienced by the salmon during the pre-smolt stage.

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