Document Detail

UVB Radiation Variably Affects n-3 Fatty Acids but Elevated Temperature Reduces n-3 Fatty Acids in Juvenile Atlantic Salmon (Salmo salar).
MedLine Citation:
PMID:  23108959     Owner:  NLM     Status:  Publisher    
Temperature and ultraviolet B radiation (UVB 290-320 nm) are inextricably linked to global climate change. These two variables may act separately, additively, or synergistically on specific aspects of fish biochemistry. We raised Atlantic Salmon (Salmo salar) parr for 54 days in outdoor tanks held at 12 and 19 °C and, at each temperature, we exposed them to three spectral treatments differing in UV radiation intensity. We quantified individual fatty acid (FA) mass fractions in four tissues (dorsal muscle, dorsal and ventral skin, and ocular tissue) at each temperature × UV combination. FA composition of dorsal muscle and dorsal and ventral skin was not affected by UV exposure. Mass fractions of 16:0, 18:0, and saturated fatty acids (SFA) were greater in dorsal muscle of warm-reared fish whereas 18:3n-3, 20:2, 20:4n-6, 22:5n-3, 22:6n-3, n-3, n-6, polyunsaturated fatty acids (PUFA), and total FA were significantly higher in cold-reared fish. Mass fractions of most of the FA were greater in the dorsal and ventral skin of warm-reared fish. Cold-reared salmon exposed to enhanced UVB had higher ocular tissue mass fractions of 20:2, 20:4n-6, 22:6n-3, n-3, n-6, and PUFA compared to fish in which UV had been removed. These observations forecast a host of ensuing physiological and ecological responses of juvenile Atlantic Salmon to increasing temperatures and UVB levels in native streams and rivers where they mature before smolting and returning to the sea.
Michael T Arts; Michelle E Palmer; Anne Berit Skiftesvik; Ilmari E Jokinen; Howard I Browman
Related Documents :
14729409 - Serum nitrite and nitrate levels in epileptic children using valproic acid or carbamaze...
23454819 - Effect of steam and lactic acid treatments on the survival of salmonella enteritidis an...
2506329 - Stereoselective synthesis of the diunsaturated metabolites of valproic acid.
12325069 - Valproic acid treatment results in increased accumulation of prion proteins.
1432619 - Pharmacokinetic analysis of ester prodrugs of valproic acid.
9579899 - Successful treatment by direct hemoperfusion of coma possibly resulting from mitochondr...
8103019 - Negative feedback regulation of acid secretion: linkage of acid secretion and mucosal d...
9543689 - Fatty acids inhibit adrenocorticotropin-induced adrenal steroidogenesis.
10867119 - A promoter polymorphism in the monoamine oxidase a gene and its relationships to monoam...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-30
Journal Detail:
Title:  Lipids     Volume:  -     ISSN:  1558-9307     ISO Abbreviation:  Lipids     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0060450     Medline TA:  Lipids     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
National Water Research Institute, Environment Canada, 867 Lakeshore Road, P.O. Box 5050, Burlington, ON, L7R 4A6, Canada,
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Effects of organoselenium compound 2-(5-selenocyanato-pentyl)-benzo[de]isoquinoline 1,3-dione on cis...
Next Document:  An Improved Method for Analysis of Glucosylceramide Species Having cis-8 and trans-8 Isomers of Sphi...