Seasonal variations in the lipid composition of the steelhead trout, <i>Salmo gairdneri</i> Richardson, associated with the parr‐smolt transformation

Sheridan, Mark A.; Allen, William V.; Kerstetter, Theodore H.

doi:10.1111/j.1095-8649.1983.tb02887.x

Cited by 91 publications

(41 citation statements)

References 29 publications

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“…Alterations in tissue fatty acid composition of sea lamprey accompanying their metamorphosis from freshwater ammocoetes to freshwater macropthalmia reported here are unlike those associated with the smoltification of salmonid fishes which transform from freshwater parr to freshwater smolt (Sheridan et al, 1985). For example, fluctuating 18:2v6 levels, lower 22:6v3 levels, higher BCSFA levels and undetectable 20:5v3 occurred in the macropthalmia liver.…”

Section: Discussioncontrasting

confidence: 38%

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Differences in the fatty acid composition of larvae and metamorphosing sea lampreys, Petromyzon marinus

Kao

Youson

Vick

et al. 2002

Comparative Biochemistry and Physiology Part B: Biochemistry an

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This study was designed to evaluate biochemical changes in the fatty acid (FA) compositions of selected lipid depot (kidney and liver) and absorption (intestine) organs in larvae and metamorphosing sea lamprey, Petromyzon marinus. Palmitic or stearic acids were generally the predominant saturated fatty acids (SFA) before and during metamorphosis, but the greatest proportion of myristic acid occurred in renal triacylglycerol (TG). Monoenes, dienes, and polyenes consist mainly of 16:1, 18:1, and 20:1, 18:2 and 20:2v6, and 18:4v3, respectively. Alterations in these predominant fatty acids occurred during lamprey metamorphosis, but depended on tissue, lipid class, and developmental status. During metamorphosis, kidney TG and phospholipid (PL) classes tended to mobilize SFA and enhance the fatty acid unsaturation, as indicated by increased unsaturatedysaturated ratio, unsaturation index (USI), and total mean chain length (MCL). There was a tendency to increase saturation in the fatty acids of liver TG and PL classes and intestine TG, FA and monoacylglycerol (MG) classes, but to increase unsaturation in the fatty acids of liver cholesteryl ester (CE), FA and MG classes and intestine PL and CE classes from larva or stage 3 to stage 7. Increased polyunsaturated fatty acids in kidney TG and PL from larvae to stage 5 transformers and intestine PL and CE from stage 3 to stage 7 transformers may reflect an osmoregulatory pre-adaptation. The presence of branched-chain SFA (BCSFA) and the odd number of fatty acids (ONFA) indicated a significant role of detritivores in the benthic larvae. Decreased abundance of BCSFA, ONFA, and 18:2 dienes occurred in the transformed intestine TG as non-trophic metamorphosis proceeded. These data suggest that sea lamprey metamorphosis may proceed in a habitat, dietary, osmoregulatory, energetic, and developmental pre-adaptation of fatty acid composition from benthic filter-feeding larvae to pelagic parasitic juveniles. ᮊ

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Section: Discussioncontrasting

confidence: 38%

“…In teleost fish, fatty acid composition has been suggested to reflect osmoregulatory pre-adaptation (Sheridan et al, 1985), dietary source, nutritional status, lipid utilization, fatty acid metabolism, and, perhaps, other environmental (e.g. thermal) and physiological (e.g.…”

Section: Introductionmentioning

confidence: 99%

Differences in the fatty acid composition of larvae and metamorphosing sea lampreys, Petromyzon marinus

Kao

Youson

Vick

et al. 2002

Comparative Biochemistry and Physiology Part B: Biochemistry an

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“…the fatty acids that contributed for the separation of the three river basins were 16:0, 18:4ω3 and 24:1ω9 (table 5). diSCuSSion in teleost fish, fatty acid composition has been suggested to reflect osmo-regulatory pre-adaptation (Sheridan et al, 1985), dietary source, nutritional status, lipid utilisation, fatty acid metabolism and other environmental and physiological parameters (Henderson and tocher, 1987;Hoch, 1988). it is well known that in fish tissues the fatty acid composition of triacylglycerols, and to a lesser extent of phospholipids, is determined by diet composition and lipid metabolism (Henderson and tocher, 1987;Sargent et al, 1989;linko et al, 1992;Peng et al, 2003) and that the fatty acid composition of diet influences tissues differently, with great impact in triacylglycerol rich tissues (Joensen et al, 2000).…”

Section: Fatty Acid Composition Of the Pl Fraction Of Musclementioning

confidence: 99%

Comparison of the fatty acid profile of muscle neutral lipids and phospholipids of up-river anadromous sea lamprey (<i>Petromyzon marinus</i> L.) from three Portuguese river basins

Pinela¹,

Quintella²,

Almeida³

et al. 2009

Sci. Mar.

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SummarY: Composition of fatty acid profile of muscle neutral lipids (nl) and phospholipids (Pl) of sea lamprey that enter the Portuguese rivers minho, tagus and Guadiana during their non-trophic spawning migration was analysed. the fatty acid profile exhibited differences in the percentage among nl and Pl and between river basins. Similarities were found in the fatty acid profile of nl. monounsaturated fatty acids (muFa) were the most representative, followed by saturated fatty acids (SFa) and finally by polyunsaturated fatty acids (PuFa). monoenic 16:1 and 18:1ω9 formed a considerable percentage of total fatty acids, followed by SFa 14:0 and 16:0. ePa and dHa were the dominant PuFa fatty acids. in terms of nl, the fatty acid that contributed for the discrimination between the three river basins was 18:1ω7. individuals from the minho river basin exhibited a different fatty acid profile of Pl characterised by a low PuFa percentage when compared with lampreys from the tagus and Guadiana river basins. muscle Pl fraction showed that the two monoenes, 16:1 and 18:1ω9, occurred at high percentage, followed by 16:0 and 14:0 (SFa). among PuFa, dHa was the most representative fatty acid. the fatty acids that contributed to the separation between the three river basins were 16:0, 18:4ω3 and 24:1ω9. although the results point in the direction of a possible difference between the fatty acid composition of the nl and Pl fractions in the muscle samples from the three river basins, further studies, especially in tissues where fatty acid composition will be less sensitive to diet and environmental factors, are necessary to confirm this hypothesis.Keywords: Petromyzon marinus, fatty acids, spawning migration, minho, tagus, Guadiana, Portugal.reSumen: Comparación del perfil de ácidos grasos en los lípidos neutrales y en los fosfolípidos de los músculos de la lamprea marina anádroma (Petromyzon marinus L.) (Agnatha) de la cuenca hidrográfica de tres ríos portugueses. -Se ha analizado la composición del perfil de ácidos grasos de los lípidos neutrales (nl) y fosfolípidos (Pl) en el músculo de la lamprea marina que entra en los ríos miño, tajo y Guadiana durante su migración reproductora, no-trófica. el perfil de ácidos grasos presentaba diferencias en los porcentajes entre nl y Pl y entre las distintas cuencas. Se encontraron semejanzas en el perfil de ácidos grasos de los nl. los ácidos grasos monoinsaturados (muFa) fueron los más representativos seguidos por los ácidos grasos saturados (SFa) y, finalmente, por los ácidos grasos poliinsaturados (PuFa). los monoenoicos 16:1 y 18:1ω9 representaban un porcentaje considerable del total de ácidos grasos, seguidos por los SFa 14:0 y 16:0. ePa y dHa fueron los ácidos grasos PuFa dominantes. a nivel de nl, el ácido graso que permitió la discriminación entre las cuencas de los tres ríos fue el 18:1ω7. los individuos de la cuenca del río miño, en comparación con las lampreas de las cuencas de los ríos tajo y Guadiana, presentaban un perfil de ácidos grasos distinto a nivel de los Pl, que se...

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“…The relationship of lipid features between muscle and liver is limited to some species of cultured fish. 4,7,[13][14][15] In the present study, we examined the characteristics of lipid accumulation in muscle and liver in five species of fish, which are im portant for cultured fish, and tried to classify them into two types with different lipid ratios of muscle to liver.…”

Section: Characteristics Of Lipid Accumulation Types In Five Species mentioning

confidence: 99%

Characteristics of Lipid Accumulation Types in Five Species of Fish.

Ando¹,

Mori²,

Nakamura³

et al. 1993

NIPPON SUISAN GAKKAISHI

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Seasonal variations in the lipid composition of the steelhead trout, Salmo gairdneri Richardson, associated with the parr‐smolt transformation

Cited by 91 publications

References 29 publications

Differences in the fatty acid composition of larvae and metamorphosing sea lampreys, Petromyzon marinus

Differences in the fatty acid composition of larvae and metamorphosing sea lampreys, Petromyzon marinus

Comparison of the fatty acid profile of muscle neutral lipids and phospholipids of up-river anadromous sea lamprey (<i>Petromyzon marinus</i> L.) from three Portuguese river basins

Characteristics of Lipid Accumulation Types in Five Species of Fish.

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