Responses of Atlantic Salmon Parr to Output of Pulsed Ultrasonic Transmitters
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 کاملDifferential hormonal responses of Atlantic salmon parr and smolt to increased daylength: A possible developmental basis for smolting
In order to elucidate the developmental basis for smolting, Atlantic salmon, Salmo salar, parr (b11.5 cm) and smolts (N12.5 cm) were exposed to natural daylength (LDN) and increased daylength (LD16:8) starting in late February and gill Na,K– ATPase activity and circulating hormone levels monitored from January to May. Gill Na,K–ATPase activity remained low and constant in both groups of parr. I...
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The effect of serial in vitro subculturing on three pathogenic strains of Saprolegnia parasitica was investigated. The isolates were passed through Atlantic salmon, Salmo salar L. parr, and then re-isolated as single spore colonies. All strains caused infection. The isolate obtained from diseased fish served as a virulent reference culture and was designated 'AP' ('activated through passage'). ...
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...
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...
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ژورنال
عنوان ژورنال: Transactions of the American Fisheries Society
سال: 1977
ISSN: 0002-8487,1548-8659
DOI: 10.1577/1548-8659(1977)106<489:roaspt>2.0.co;2