Endurance of farmed and sea‐ranched Atlantic salmon Salmo salar L. at spawning

Endurance of farmed and sea-ranched Atlantic salmon Salmo salar L. males was analysed during spawning time. The fish were endurance tested at different swimming speeds (1.6–2.1 m s−1) in forced swim trials. The sea-ranched males (51-65 cm, n= 20) fatigued significantly earlier than the farmed males(59-72 cm, n= 20),although the sea-ranched males were significantly smaller than the farmed males. When the size difference between the two groups were corrected for, no significant difference in the endurance of the two groups was found. Farmed salmon had a significant higher fat content in white muscle (4.7%) than sea-ranched salmon (1.1%).

[1]  Finn Økland,et al.  In situ measurement of swimming performance of wild Atlantic salmon ( Salmo salar ) using radio transmitted electromyogram signals , 1997 .

[2]  H. Lura,et al.  Timing of spawning in cultured and wild Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in the River Vosso, Norway , 1993 .

[3]  K. Hindar,et al.  Interactions between wild and cultured Atlantic salmon: a review of the Norwegian experience , 1993 .

[4]  Marit Aursand,et al.  Lipid distribution and composition of commercially farmed atlantic salmon (salmosalar) , 1994 .

[5]  B. Hammond,et al.  The Effect of Physical Conditioning on the Metabolism of Lactate, Phosphate, and Glucose in Rainbow Trout, Salmo gairdneri , 1966 .

[6]  D. Green.  A Comparison of Stamina of Brook Trout from Wild and Domestic Parents , 1964 .

[7]  J. R. Brett,et al.  The Effect of Temperature on the Cruising Speed of Young Sockeye and Coho Salmon , 1958 .

[8]  B. Jonsson,et al.  Migratory behaviour of wild and farmed Atlantic salmon (Salmo salar) during spawning , 1995 .

[9]  J. Vijverberg,et al.  Oxygen consumption and efficiency of swimming goldfish , 1971 .

[10]  R. Vincent.  Some Influences of Domestication upon Three Stocks of Brook Trout (Salvelinus fontinalis Mitchill) , 1960 .

[11]  R. Bainbridge,et al.  The Speed of Swimming of Fish as Related to Size and to the Frequency and Amplitude of the Tail Beat , 1958 .

[12]  W. J. Dyer,et al.  A rapid method of total lipid extraction and purification. , 1959, Canadian journal of biochemistry and physiology.

[13]  T. G. Heggberget.  Timing of Spawning in Norwegian Atlantic Salmon (Salmo salar) , 1988 .