Biological and environmental influence on tissue fatty acid compositions in wild tropical tunas

Sardenne, Fany; Kraffe, Edouard; Amiel, Aurélien; Fouché, Edwin; Debrauwer, Laurent; Ménard, Frédéric; Bodin, Nathalie

doi:10.1016/j.cbpa.2016.11.007

Cited by 26 publications

(22 citation statements)

References 47 publications

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“…Fish polar lipids are commonly considered as a physiologically crucial lipid class that are rich in LC-PUFA, mostly in DHA and, to a lesser extent, in EPA [19,37,39]. Indeed, percentages of DHA and EPA in PL of various wild marine and freshwater species ranged as 11.5-55.7% and 2.6-14.6%, with average values of 31.4% and 7.4%, respectively [40][41][42][43][44][45][46]. The average levels of EPA and DHA in the fish species from our study coincided with the above ranges, except the EPA value of whitefish, 16.6%, which was a bit higher than the known values.…”

Section: Content Of Essential Lc-pufa In Fish Pl and Tagmentioning

confidence: 99%

“…Triacylglycerols are considered to be relatively poor in LC-PUFA and preferably accumulate monoenoic C16-22 FA [18,19,37]. According to the available data, levels of DHA and EPA in fish TAG varied in intervals of 2.3%-23.3% and 1.1%-14.1%, with average values of 8.8% and 5.3%, respectively [40][41][42][43][44][45][46]. The percentages of both EPA and DHA of TAG in the fish species from our study well coincided with the above ranges (Table 5).…”

Section: Content Of Essential Lc-pufa In Fish Pl and Tagmentioning

confidence: 99%

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Comparison of Fatty Acid Contents in Major Lipid Classes of Seven Salmonid Species from Siberian Arctic Lakes

et al. 2020

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Long-chain omega-3 polyunsaturated fatty acids (LC-PUFA) essential for human nutrition are mostly obtained from wild-caught fish. To sustain the LC-PUFA supply from natural populations, one needs to know how environmental and intrinsic factors affect fish fatty acid (FA) profiles and contents. We studied seven Salmoniformes species from two arctic lakes. We aimed to estimate differences in the FA composition of total lipids and two major lipid classes, polar lipids (PL) and triacylglycerols (TAG), among the species and to evaluate LC-PUFA contents corresponding to PL and TAG in muscles. Fatty acid profiles of PL and TAG in all species were characterized by the prevalence of omega-3 LC-PUFA and C16-C18 monoenoic FA, respectively. Fish with similar feeding spectra were identified similarly in multivariate analyses of total lipids, TAG and PL, due to differences in levels of mostly the same FA. Thus, the suitability of both TAG and total lipids for the identification of the feeding spectra of fish was confirmed. All species had similar content of LC-PUFA esterified as PL, 1.9-3.5 mg g −1 , while the content of the TAG form strongly varied, from 0.9 to 9.8 mg g −1 . The LC-PUFA-rich fish species accumulated these valuable compounds predominately in the TAG form.

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Section: Content Of Essential Lc-pufa In Fish Pl and Tagmentioning

confidence: 99%

Section: Content Of Essential Lc-pufa In Fish Pl and Tagmentioning

confidence: 99%

Comparison of Fatty Acid Contents in Major Lipid Classes of Seven Salmonid Species from Siberian Arctic Lakes

et al. 2020

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“…The fatty acid composition of fish lipids is influenced by diet, reproductive cycle, species, salinity, season, water temperature, individualspecific behaviors, spawning, geographical location and sex (Akpinar, Görgün, & Akpinar, 2009;Bayır et al, 2010;Çelik, Diler, & Küçükgülmez, 2005;Guler, Aktumsek, Cakmak, Zengin, & Citil, 2011;Haliloǧlu, Bayır, Sirkecioǧlu, Aras, & Atamanalp, 2004;Henderson & Tocher, 1987;Sardenne et al, 2017;Shirai, Suzuki, Tokairin, Ehara, & Wada, 2002;Sushchik, Rudchenko, & Gladyshev, 2017;Uysal, Yerlikaya, Aksoylar, Yöntem, & Ulupinar, 2006). Another important factor affecting fatty acid composition is whether the fish is wild or cultured.…”

Section: Introductionmentioning

confidence: 99%

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Güler¹,

Zengin²,

Çakmak³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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Fish are a unique dietary source beneficial to human health. These valuable effects originate from ω3 polyunsaturated fatty acids, particularly the eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in the fish oil. In this study, fatty acid composition of the muscle lipids of Salmo trutta macrostigma (wild brown trout) and Oncorhynchus mykiss (cultured rainbow trout) in Gezende Dam Lake were determined by gas chromatographic technique. In both species, palmitic acid (16.26-18.94%), oleic acid (17.88-20.49%) and DHA (14.08-18.49%) were identified as major saturated fatty acid (SFA), monounsaturated fatty acid (MUFA) and polyunsaturated fatty acid (PUFA), respectively. Wild fish contained significantly more linolenic acid, arachidonic acid, eicosapentaenoic acid, docosapentaenoic acid, total ω3 fatty acids and has higher ω3/ω6 ratio than cultured fish. In conclusion, wild brown trout may have a higher nutritional value considering total ω3 fatty acids (35.52-27.43%) and ω3/ω6 ratio (3.84-1.56) compared to cultured rainbow trout.

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“…SI analyses were performed on white muscle, the less variable tissue and the most extensively used in fish ecology (Pinnegar and Polunin 1999), while FA profiles were examined from liver tissue, the richest tissue in storage lipids in tropical tunas (Sardenne et al 2017). In addition, we recorded the muscle lipid content as a proxy of fish body condition (Tocher 2003), thereafter included in the term 'ecological tracers'.…”

Section: Ecological Tracers Analysismentioning

confidence: 99%

Seasonal habitat and length influence on the trophic niche of co-occurring tropical tunas in the eastern Atlantic Ocean

Sardenne

Diaha

Amandé

et al. 2019

Can. J. Fish. Aquat. Sci.

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In the Gulf of Guinea, bigeye tuna (Thunnus obesus; BET) and yellowfin tuna (Thunnus albacares; YFT) are an important part of commercial fisheries and play a prominent ecological role as top predators. Using fatty acid profiles and carbon and nitrogen stable isotopes, we examined their trophic niche partitioning in this understudied region. Trophic niche overlap was high (>70%), similar to percentages in other ocean basins. BET occupied a higher trophic position than YFT and fed on deeper prey (high δ15N values and high proportions of monounsaturated fatty acids). The trophic position of YFT decreased slightly in the last 15 years (δ15N values decreased by ∼0.5‰), suggesting a change in epipelagic communities, as observed in the eastern Pacific Ocean. Ontogenic changes were limited to BET. For both species, the dietary proportion of the diatom marker 20:5(n-3) increased in the seasonal upwelling area, highlighting the influence of seasonal habitat on the diet of tuna. The relatively lipid-rich muscle (∼6% dry mass) of Atlantic tropical tuna suggests a richer diet in this region than that of Indian Ocean tropical tuna and (or) differences in energy allocation strategies.

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Biological and environmental influence on tissue fatty acid compositions in wild tropical tunas

Cited by 26 publications

References 47 publications

Comparison of Fatty Acid Contents in Major Lipid Classes of Seven Salmonid Species from Siberian Arctic Lakes

Comparison of Fatty Acid Contents in Major Lipid Classes of Seven Salmonid Species from Siberian Arctic Lakes

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Seasonal habitat and length influence on the trophic niche of co-occurring tropical tunas in the eastern Atlantic Ocean

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