Mobility and home-range use of Atlantic salmon parr over short time scales
نویسندگان
چکیده
منابع مشابه
Transcriptional profiling of the parr-smolt transformation in Atlantic salmon.
The parr-smolt transformation in Atlantic salmon (Salmo salar) is a complex developmental process that culminates in the ability to migrate to and live in seawater. We used GRASP 16K cDNA microarrays to identify genes that are differentially expressed in the liver, gill, hypothalamus, pituitary, and olfactory rosettes of smolts compared to parr. Smolts had higher levels of gill Na(+)/K(+)-ATPas...
متن کاملEnvironmental and physiological factors shape the gut microbiota of Atlantic salmon parr (Salmo salar L.)
Gut microbes are key players in host immune system priming, protection and development, as well as providing nutrients to the host that would be otherwise unavailable. Due to this importance, studies investigating the link between host and microbe are being initiated in farmed fish. The establishment, maintenance and subsequent changes of the intestinal microbiota are central to define fish phy...
متن کاملEnvironmental effects on lipid nutrition of farmed Atlantic salmon (Salmo salar L.) parr and smolt
An experiment was conducted to investigate the effects of temperature, feed fat content and dietary oil source on growth and nutrient utilisation of Atlantic salmon parr (f 19 g). The fish were reared in freshwater at 2 or 8 jC for 6 months at light/dark cycles of 12 h:12 h. Each of four feeds was provided to triplicate groups of fish at each temperature. The feeds were formulated with marine f...
متن کاملMoon phase and nocturnal density of Atlantic salmon parr in the Sainte-Marguerite River, Québec
Nocturnal underwater counts of Atlantic salmon Salmo salar parr were made on four consecutive occasions (two lunar cycles, samplings at both the full and new moon) at four 40m long sites in the Sainte-Marguerite River, Québec, Canada, between 30 June and 14 August 2003. Atlantic salmon parr counts did not differ significantly between moon phases. Cloud cover ranged from 0 to 100% during the stu...
متن کاملAtlantic salmon smolts are more responsive to an acute handling and confinement stress than parr
Atlantic salmon parr and smolts reared under a natural temperature and photoperiod regime were subjected to an acute handling and confinement stress in early May. Smolts had a mean plasma cortisol concentration of 10 ngrml before stress and 242 ngrml 3 h after initiation of stress which returned to pre-stress levels within 8 h. Parr had a plasma cortisol concentration of 4 ngrml prior to stress...
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ژورنال
عنوان ژورنال: Aquatic Living Resources
سال: 2007
ISSN: 0990-7440,1765-2952
DOI: 10.1051/alr:2007020