Lipid and fatty acid composition of ovaries from wild fish and ovaries and eggs from captive fish of white sea bream (Diplodus sargus)

Cejas, J.R.; Almansa, E.; Villamandos, J.E.; Badía, P.; Bolaños, A.; Lorenzo, A.

doi:10.1016/s0044-8486(02)00525-2

Cited by 104 publications

(77 citation statements)

References 38 publications

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“…Comparative studies on gonad fatty acid composition of D. sargus, captured in natural environment and kept in confinement, demonstrated that the latter tend to have lower EPA and DHA concentration, and higher ARA concentration (Cejas et al, 2003). The reduction of EPA and DHA in the ovary of confined fish is considered a problem in artificial breeding (Ling et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Characterization of the ovary fatty acids composition of Rhamdia quelen (Quoy & Gaimard) (Teleostei: Siluriformes), throughout their reproductive cycle

et al. 2015

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Knowledge about gonad fatty acid composition is important for broodstock diet formulation. This study characterized ovary fatty acid composition of wild female jundiá catfish (Rhamdia quelen) in their different gonadal maturation stages. Female jundiá (n = 36, average weight= 383.8 + 208.8 g) were captured in the rio Uruguay, comprising all seasons. Ovaries were extracted and classified according to their gonadal maturation stage. Gonad-somatic ratio varied significantly among seasons, being higher in spring (3.7), followed by summer (2.2), winter (0.9) and autumn (0.6). Main fatty acids groups detected were: saturated (SFA= 35.5%), monounsaturated (MUFA= 28.1%) and polyunsaturated fatty acids (PUFA= 33.5%). Over the four seasons, palmitic acid was recorded in large quantities, followed by docosahexaenoic acid (DHA) and arachidonic acid (ARA). ARA was present in higher concentrations in immature or maturing ovaries, and its content decreased along the maturation process. Conversely, DHA and eicosapentaenoic acid (EPA) contents increased during maturation. Such variation resulted in an increase in EPA/ARA and DHA/ARA ratios in mature gonads, which can be important for successful breeding. Such findings suggest that jundiá broodstock diets should contain lipids that provide long chain polyunsaturated fatty acids from both the n-3 and n-6 series to ensure gonadal maturation completion.O conhecimento da composição de ácidos graxos da gônada, como dos fatores que a influenciam são importantes na formulação de dietas para reprodutores de qualquer espécie. O presente estudo caracteriza a composição de ácidos graxos da gônada de fêmeas de jundiá (Rhamdia quelen) selvagens em seus diferentes estágios de maturação gonadal. Fêmeas de jundiá (n = 36) com peso médio de 383,8 + 208,8 g foram capturadas no alto rio Uruguai, ao longo de um ano, abrangendo as quatro estações. As gônadas foram extraídas, classificadas e posteriormente sua composição de ácidos graxos foi determinada. A relação gônado-somática variou significativamente entre as estações, sendo maior na primavera (3,7), seguida de verão (2,2), inverno (0,9) e no outono (0,6). Os principais grupos de ácidos graxos detectados foram: saturados (35,5 + 3,5%), monoinsaturados (28,1 + 4,3%) e ácidos graxos poli-insaturados (33,5 + 3,0%), com aproximadamente 30% para cada grupo. Ao longo das quatro estações, o ácido palmítico foi registrado em grandes quantidades, seguido do ácido docosahexaenóico (DHA) e ácido araquidônico (ARA). O ácido araquidônico estava presente em concentrações mais elevadas nas gônadas imaturas que nas gônadas maturas, e seu conteúdo diminuído ao longo do processo de maturação. Inversamente, o conteúdo de DHA e ácido eicosapentaenoico (EPA) aumentaram durante o processo de maturação. Tal variação resultou num aumento das relações EPA/ARA e DHA/ARA nas gônadas maturas, fato que pode ser importante para o sucesso da reprodução no jundiá. Tais resultados sugerem que dietas para reprodutores da espécie devem conter fontes de lipídios que proporcionem ác...

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Section: Discussionmentioning

confidence: 99%

Characterization of the ovary fatty acids composition of Rhamdia quelen (Quoy & Gaimard) (Teleostei: Siluriformes), throughout their reproductive cycle

et al. 2015

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“…However, the n-3 and n-6 FAs (LA and ALA) which are stored for gonad maturation would have mobilized during vitellogenesis in the females (Cejas et al 2003;Medford and Mackay 1978). Sargent and Henderson (1995) reported that MUFAs are catabolized to in order to supply metabolic energy during gonad development.…”

Section: Fa Composition Of Total Lipidmentioning

confidence: 99%

Effect of seasonal variation on lipid and fatty acid profile in muscle tissue of male and female Silurus triostegus

2016

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Fatty acid (FA) compositions of total lipid, phospholipid (PL) and triacylglycerol (TAG) fractions have been determined in muscle tissues of Silurus triostegus. The distributions of saturated fatty acid (SFA), monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA) proportions were found to be different among total lipid, PL and TAG fractions from lipids in muscle tissues of the male and female S. triostegus in all seasons. Triacylglycerol contained a lower proportion of PUFA and a higher proportion of MUFA and SFA than PL while PL contained higher proportion of PUFA than proportion of MUFA and SFA compared to TAG. Triacylglycerol and PL fatty acid compositions in muscle tissues of the male and female fish species were found different. The most abundant fatty acids in the investigated seasons were palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1 n-9), palmitoleic acid (C16:1 n-7) and docosahexaenoic acid (C22:6 n-3). It was shown that the total lipid content and FA compositions in muscle tissues of the male and female S. triostegus were influenced by reproduction period and season.

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“…In fact, for PCBs and OCPs the mean level on w.w. basis of contamination in the examined tissues always have a linear relationship with their mean lipid content [11]. Generally, lipid content of fish tissue in net mass is about 15%, mainly being composed of phospholipids, triacylglycerolipids, and cholesterol and sterol esters [12].…”

Section: Resultsmentioning

confidence: 97%

Pesticides (OCPs) and Polychlorinated Biphenyls (PCBs) Concentration in Various Fish Species Along the Chesapeake Bay Near Virginia Beach on the Atlantic Coastline

Munshi¹,

Boardman²,

Flick³

et al. 2009

TOOCEAJ

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Abstract:The accumulation of polychlorinated biphenyls (PCBs), DDTs, chlordanes, BHCs, dieldrin, heptachlor epoxide and other organochlorinated pesticides (OCPs) was measured in the tissues of different edible fishes collected along the Virginia Coast by employing the methods: MSPD (Matrix Solid Phase Dispersion) and GC-ECD (Gas Chromatography with Electron Capture Detector). BHC4s were the most predominant contaminants, followed by PCBs, chlordanes, dieldrin and the other OCPs. This study revealed that over the last decade, the concentrations of OCPs have declined in these regions. Even with this decline, the measured concentrations of PCBs and OCPs in edible fish are still worth reporting. It was observed, that concentrations of organochlorines were significantly in same range (low-high) with one another and were in the range of a few to several ngg 1 on a wet weight basis. and Aroclor 1242 were the dominant components. The redox conditions and the decay processes which affect the organic matter, control the concentrations of PCBs and OCPs in edible fish. These preliminary results suggest that the variations in PCBs and OCPs content in edible fish result largely from digenetic processes rather than changes in pesticide input resulting from local human activities.

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Lipid and fatty acid composition of ovaries from wild fish and ovaries and eggs from captive fish of white sea bream (Diplodus sargus)

Cited by 104 publications

References 38 publications

Characterization of the ovary fatty acids composition of Rhamdia quelen (Quoy & Gaimard) (Teleostei: Siluriformes), throughout their reproductive cycle

Characterization of the ovary fatty acids composition of Rhamdia quelen (Quoy & Gaimard) (Teleostei: Siluriformes), throughout their reproductive cycle

Effect of seasonal variation on lipid and fatty acid profile in muscle tissue of male and female Silurus triostegus

Pesticides (OCPs) and Polychlorinated Biphenyls (PCBs) Concentration in Various Fish Species Along the Chesapeake Bay Near Virginia Beach on the Atlantic Coastline

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