scholarly journals The relationship between acute stress, food intake, endocrine status and life history stage in juvenile farmed Atlantic salmon, Salmo salar

Aquaculture ◽  
2008 ◽  
Vol 275 (1-4) ◽  
pp. 311-318 ◽  
Author(s):  
N.W. Pankhurst ◽  
S.L. Ludke ◽  
H.R. King ◽  
R.E. Peter
1999 ◽  
Vol 56 (12) ◽  
pp. 2397-2403 ◽  
Author(s):  
Sveinn K Valdimarsson ◽  
Neil B Metcalfe

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.


2015 ◽  
Vol 96 (7) ◽  
pp. 2426-2432 ◽  
Author(s):  
Giulia Secci ◽  
Andrea Serra ◽  
Anna Concollato ◽  
Giuseppe Conte ◽  
Marcello Mele ◽  
...  

BMC Genomics ◽  
2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Albert Caballero-Solares ◽  
Xi Xue ◽  
Christopher C. Parrish ◽  
Maryam Beheshti Foroutani ◽  
Richard G. Taylor ◽  
...  

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