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

Abstract

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...

Promoção Da Saúde E Da Alimentação Adequada E Saudável: Construção Histórica E Conceitual

“…The predominance of DHA (C22:6w3) relative to EPA (C20:5w3) in the sea lamprey´s fillets has been reported previously (Pinela et al, 2009;Lança et al, 2013) and verified in several species of fish (Ozogul et al, 2007;2011;Prato and Biandolino, 2012). Furthermore, for both river basin individuals, there was a negative correlation between DHA levels and total lipid content, which is common in some fish species (Tocher, 2003;Afonso, 2009).…”

“…The fatty acid profile of fillets was like that of several fish species because most fish primarily accumulate lipid reserves as SFA and MUFA (Tocher, 2003;Pinela et al, 2009).…”

Avaliação Do Impacto Da Covid-19 Na Aquisição De Suplemento Imunomoduladores: Análise De Uma Empresa Especialista No Mercado Nutricional

“…The predominance of DHA (C22:6w3) relative to EPA (C20:5w3) in the sea lamprey´s fillets has been reported previously (Pinela et al, 2009;Lança et al, 2013) and verified in several species of fish (Ozogul et al, 2007;2011;Prato and Biandolino, 2012). Furthermore, for both river basin individuals, there was a negative correlation between DHA levels and total lipid content, which is common in some fish species (Tocher, 2003;Afonso, 2009).…”

“…The fatty acid profile of fillets was like that of several fish species because most fish primarily accumulate lipid reserves as SFA and MUFA (Tocher, 2003;Pinela et al, 2009).…”

Comparative Study of Lipid and Fatty Acid Profile in Liver Tissues of Male and Female Silurus triostegus During the Catching Seasons

“…In fish caught in nature, in TAG mostly monoenes, then saturated followed by PUFA are found (Henderson & Tocher, 1987). Based on this, it has been found that fish species accumulate mainly SFA and MUFA as stored lipids (Pinela et al, 2009). The reason for the high rate of monoenes in triacylglycerol is that among the components in this group, the ratio of 18:1-9 is higher.…”