Effect of natural and artificial diets on seasonal changes in fatty acid composition and total body lipid content of wild and hatchery-reared Atlantic salmon (Salmo salar L.) parr-smolt

Bergström, Eva

doi:10.1016/0044-8486(89)90409-2

Cited by 49 publications

(32 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Vice versa, under conditions of low fish density and high individual growth rates, the proportion of residents increased. Due to sustained high growth rates in hatcheries, cultured fish generally have higher CF and lipid concentrations than wild fish (Bergström, 1989;Poole et al, 2003;this investigation). This may result in a higher propensity to residency and might be the reason to why a larger fraction of the released hatchery fish (c. 40%) than wild fish (c. 10%) was not detected at any station.…”

Section: Discussionmentioning

confidence: 98%

Migration performance of wild and hatchery sea trout (Salmo trutta L.) smolts—Implications for compensatory hatchery programs

2009

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 98%

Migration performance of wild and hatchery sea trout (Salmo trutta L.) smolts—Implications for compensatory hatchery programs

2009

View full text Add to dashboard Cite

“…Although a few studies have examined seasonal changes in the fatty acid composition of fish, those studies have limitations which make them unsuitable for evaluating seasonal reallocations of EFA among body compartments. These limitations include the measurement of fatty acid composition on only total tissue lipids (Jangaard et al 1967;Henderson et al 1984;Bergstrom 1989), on few sampling dates (Roche and Peres 1984;Dutta et al 1985;Agren et al 1987), and in only one or two body compartments (Hardy and Mackie 1969;Eaton et al 1975;Yuneva et al 1987;Henderson and Almatar 1989;Tidwell and Robinette 1990). 9…”

Section: Monthmentioning

confidence: 99%

Seasonal dynamics of fatty acid composition in female northern pike (Esox lucius L.)

1993

View full text Add to dashboard Cite

Abstract. Seasonal changes in the fatty acid composition of neutral and polar lipids were measured in the ovary, liver, white muscle, and adipopancreatic tissue of northern pike. The role of environmental and physiological factors underlying these changes was evaluated. From late summer (August-September) to winter (JanuaryMarch), the weight percentage of n-3 polyunsaturated fatty acids (especially 22: 6n3) declined significantly in the neutral lipids of all somatic tissues examined. However, large quantities of n-3 polyunsaturated fatty acids accumulated in the recrudescing ovaries during fall and the weight percentage of n-3 polyunsaturated fatty acids in ovary polar lipids also increased significantly. Additionally, the n-3 polyunsaturated fatty acid content of somatic polar lipids increased significantly during fall due to increases in the total polar lipid content of the somatic tissues. This suggests that during fall n-3 polyunsaturated fatty acid, are diverted away from somatic neutral lipids and thereby conserved for use in ovary construction and for incorporation into tissue polar lipids. The percentage of n-3 polyunsaturated fatty acid in ovary neutral lipids also declined during fall and early winter, perhaps as an adaptation to conserve these fatty acids for storage in oocyte polar lipids and later incorporation into cellular membranes of the developing embryo. Reductions in the n-3 polyunsaturated fatty acids content of somatic and ovarian neutral lipids during fall were compensated for specifically by increases in the percentage of monounsaturated fatty acids rather than saturated fatty acids. This suggests that the ratio of saturated to unsaturated fatty acids in pike neutral lipid, is regulated physiologically, and hence may influence the physiological functioning of these lipids. During fall and early winter the percentage of saturated fatty acids declined significantly in the polar Abbreviations: AP, adipopancreatic; BHT, butylated hydroxytoluene; CI, confidence interval; EFA, essential fatty acids; MUFA, monounsaturated fatty acids; NL, neutral lipids; PL, polar lipids; PUFA, polyunsaturated fatty acids; SFA, saturated fatty acids Correspondence to: K. Schwalme, Alberta Environmental Centre, Bag 4000, Vegreville, Alberta, Canada, TOB-4L0 lipids of all tissues examined. This change was consistent with the known effects of cold acclimation on the fatty acid composition of cellular membranes. As the ovaries were recrudescing from September to January, liver polar lipids exhibited significant decreases in the percentage of total polyunsaturated fatty acids and n-3 polyunsaturated fatty acids and increases in monounsaturated fatty acids, and acquired a fatty acid composition very similar to that of ovary polar lipids. Therefore, seasonal changes in the percentage of polyunsaturated and monounsaturated fatty acids in liver polar lipids probably reflect the liver's role in vitellogenesis rather than the effects of temperature on membrane fatty acid composition. At all times of year, the fatty acid com...

show abstract

“…Many investigations on human health are focussing on lipid content of fish and the total lipid amount has been investigated by various authors [1][2][3][4][5][6][7]. Fish lipids are particularly rich of polyunsaturated fatty acids (PUFA) that are only slowly synthesized in humans.…”

Section: Introductionmentioning

confidence: 99%

Fatty acid composition of wild and cultivated gilthead seabream (Sparus aurata) and sea bass (Dicentrarchus labrax)

Sağglık

Alpaslan

Gezgin

et al. 2003

Euro J Lipid Sci & Tech

View full text Add to dashboard Cite

Short communicationTotal lipid content and fatty acid composition were determined for wild and cultivated gilthead seabream and sea bass. Fatty acid analyses were carried out by gas chromatography-mass spectrometry. Respective total lipid content of flesh in cultivated gilthead seabream and sea bass were 1.7-5.0-times those of wild samples. Palmitic acid (C16:0) and oleic acid (C18:1n-9) were the major fatty acids respectively among the saturated fatty acids and monounsaturated fatty acids of each fish species. It is noteworthy that both linoleic acid (C18:2n-6) and arachidonic acid (C20:4n-6) were predominant in total n-6 polyunsaturated fatty acids in the respective cultivated and wild types. Eicosapentaenoic acid (C20:5n-3) and docosahexaenoic acid (C22:6n-3) amounts were significantly higher in flesh of cultivated fish than in wild fish.

show abstract

Effect of natural and artificial diets on seasonal changes in fatty acid composition and total body lipid content of wild and hatchery-reared Atlantic salmon (Salmo salar L.) parr-smolt

Cited by 49 publications

References 31 publications

Migration performance of wild and hatchery sea trout (Salmo trutta L.) smolts—Implications for compensatory hatchery programs

Migration performance of wild and hatchery sea trout (Salmo trutta L.) smolts—Implications for compensatory hatchery programs

Seasonal dynamics of fatty acid composition in female northern pike (Esox lucius L.)

Fatty acid composition of wild and cultivated gilthead seabream (Sparus aurata) and sea bass (Dicentrarchus labrax)

Contact Info

Product

Resources

About