Seasonal variation in some of the lipid components of sprats (<i>Sprattus sprattus</i>)

Hardy, R.; Mackie, P. R.

doi:10.1002/jsfa.2740200401

Cited by 27 publications

(14 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, 18:1n-9 was the only major individual FA whose proportions were related to the species but not to the season or area. Sprat in the Atlantic [56] have been found to contain lower proportions of 18:1n-9 than sprat in the Baltic Sea [35]. However, the Atlantic specimens instead contained more of the long-chain MUFAs 20:1n-9 and 22:1n-11 [56].…”

Section: Discussionmentioning

confidence: 96%

“…Sprat in the Atlantic [56] have been found to contain lower proportions of 18:1n-9 than sprat in the Baltic Sea [35]. However, the Atlantic specimens instead contained more of the long-chain MUFAs 20:1n-9 and 22:1n-11 [56]. The percentage of MUFAs in the muscle of adult sprat has been found to vary in the southern Baltic Sea from the west to the east; it was lowest in the western ICES subdivision 24 and highest in the most eastern subdivision 26 [39].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Fatty acid composition of sprat (Sprattus sprattus) and herring (Clupea harengus) in the Baltic Sea as potential prey for salmon (Salmo salar)

et al. 2017

View full text Add to dashboard Cite

Sprat (Sprattus sprattus) and small herring (Clupea harengus) are the dominant prey fish of Atlantic salmon (Salmo salar) in the Baltic Sea. If the fatty acid (FA) proportions of sprat and herring differ, the dietary history of ascending salmon could be determined from their FA profiles. Therefore, we investigated the FA composition of several age groups of whole sprat and small herring, caught from the three main feeding areas of salmon in autumn and spring. Oleic acid (18:1n-9) was the most prevalent FA in sprat and characteristic of this species. In herring, palmitic acid (16:0) was the most common FA, but herring lipid was characterized by n-6 polyunsaturated FAs, and moreover, by palmitoleic acid (16:1n-7) and vaccenic acid (18:1n-7). Due to the higher lipid content of sprat, the concentrations of all other FAs, excluding these, were higher in sprat than in herring. The concentration of docosahexaenoic acid (DHA, 22:6n-3) increased with an increase in the lipid content and was consequently highest in the youngest specimens, being in young sprat almost double that of young herring, and 2.6 times higher in the sprat biomass than in that of herring. As a result of a decrease in the DHA concentration with age, the ratio thiamine/DHA increased with respect to age in both species, and was lower in sprat than in herring. It is concluded that an abundance of DHA in the diet of salmon most likely increases oxidative stress because of the susceptibility of DHA to peroxidation, and thus decreases thiamine resources of fasting, prespawning salmon. Because the FA composition of sprat and herring differs, and the relative abundancies of prey fish differ between the feeding areas of salmon, the feeding area of ascending salmon can most probably be derived by comparing their FA profiles.

show abstract

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Fatty acid composition of sprat (Sprattus sprattus) and herring (Clupea harengus) in the Baltic Sea as potential prey for salmon (Salmo salar)

et al. 2017

View full text Add to dashboard Cite

show abstract

“…This method of extraction was adequate to investigate triacylglycerol levels, the main energy reserves in the fish of the family Clupeidae (Hardy & Mackie 1969, Ackman 1980, Minyuk et al 1997, and a very appreciable component of the extracted lipids. A comparison of the results obtained by ether and chloroformmethanol (2:1) extractions was carried out (Minyuk et al.…”

Section: Methodsmentioning

confidence: 99%

Fat content in Black Sea sprat as an indicator of fish food supply and ecosystem condition

Shulman¹,

Nikolsky²,

Yuneva³

et al. 2005

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Fat content (as % of total body wet wt) of the sprat Sprattus sprattus phalericus in the Black Sea was determined annually during the peak feeding period (i.e. summer) between 1960 and 2001. Interannual variations of this characteristic were quite high (from 8.0 to 16.0%). Sprat fat content can be used as an indicator of food supply (or recent feeding history). In the Black Sea, different periods could be distinguished with respect to food supply of this species: Period I (1960 to 1964) with stable sprat fat content values of 11.2 to 13.7%; Period II (1965II ( to 1972

show abstract

“…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

Seasonal variation in some of the lipid components of sprats (Sprattus sprattus)

Cited by 27 publications

References 16 publications

Fatty acid composition of sprat (Sprattus sprattus) and herring (Clupea harengus) in the Baltic Sea as potential prey for salmon (Salmo salar)

Fatty acid composition of sprat (Sprattus sprattus) and herring (Clupea harengus) in the Baltic Sea as potential prey for salmon (Salmo salar)

Fat content in Black Sea sprat as an indicator of fish food supply and ecosystem condition

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

Contact Info

Product

Resources

About