scholarly journals Feeding of juvenile Atlantic Salmon Salmo salar L. and its trophic relations with other fish species in rivers of the Barents and White sea drainage basins (Kola peninsula)

2018 ◽  
pp. 65
Author(s):  
Максим Юрьевич Алексеев ◽  
Артем Моисеевич Николаев ◽  
Александр Васильевич Зубченко ◽  
Елена Николаевна Распутина ◽  
Анна Григорьевна Легун ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Kola Peninsula ◽  
Salmo Salar ◽  
Fish Species ◽  
White Sea ◽  
Drainage Basins ◽  
Trophic Relations ◽  
Atlantic Salmon Salmo Salar ◽  
Juvenile Atlantic Salmon

Methods for Nonlethal Gill Biopsy and Measurement of Na+, K+-ATPase Activity

1993 ◽  
Vol 50 (3) ◽  
pp. 656-658 ◽  
Author(s):  
Stephen D. McCormick
Keyword(s):  
Atlantic Salmon ◽  
Atpase Activity ◽  
Salmo Salar ◽  
Salinity Tolerance ◽  
Fish Species ◽  
Detrimental Effect ◽  
Physiological Ecology ◽  
Gill Tissue ◽  
Atlantic Salmon Salmo Salar ◽  
Juvenile Atlantic Salmon

A gill biopsy, in which a small portion of gill tissue was removed from anesthetized fish, was shown to have no detrimental effect on subsequent survival, growth, and salinity tolerance of juvenile Atlantic salmon (Salmo salar). A method for measurement of Na+, K+ -ATPase activity in this small amount of gill tissue is presented. These methods are useful for nonlethal monitoring of physiological smolt characteristics in salmonids and may have applications in the study of disease, toxicology, and physiological ecology of many fish species.

scholarly journals Sulphated glycosaminoglycans and proteoglycans in the developing vertebral column of juvenile Atlantic salmon (Salmo salar)

2015 ◽  
Vol 41 (4) ◽  
pp. 1029-1051 ◽  
Author(s):  
Kirsten O. Hannesson ◽  
Elisabeth Ytteborg ◽  
Harald Takle ◽  
Grethe Enersen ◽  
Grete Bæverfjord ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Vertebral Column ◽  
Atlantic Salmon Salmo Salar ◽  
Juvenile Atlantic Salmon ◽  
Sulphated Glycosaminoglycans

Effect of time of day, time of year, and life history strategy on time budgeting in juvenile Atlantic salmon, Salmo salar

1999 ◽  
Vol 56 (12) ◽  
pp. 2397-2403 ◽  
Author(s):  
Sveinn K Valdimarsson ◽  
Neil B Metcalfe
Keyword(s):  
Life History ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Life History Strategy ◽  
Time Of Day ◽  
Life History Strategies ◽  
Foraging Efficiency ◽  
Atlantic Salmon Salmo Salar ◽  
Juvenile Atlantic Salmon ◽  
Time Of Year

Traditionally, behavioural studies on juvenile Atlantic salmon, Salmo salar, have been conducted during the day in summer. It is known that Atlantic salmon become nocturnal in winter, but very little is known about their behaviour at that time. Therefore, observations in a seminatural stream were carried out during the day and night, from February to June, comparing diel and seasonal differences in behaviour between fish adopting alternative life history strategies. The results showed a general trend for more activity in spring than in winter, and the fish were found to be foraging at surprisingly low light levels. There were differences in relative feeding rate between the life history strategies; the early migrant fish foraged mostly during the day whereas the delayed migrant fish did more foraging at night. There is some evidence that the early migrant fish made fewer feeding attempts over the winter, which is surprising, since they grow faster over that period. This suggests differences in foraging efficiency, which could contribute to the separation into these two life history strategies.

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