Persistent Organic Pollutants in albacore tuna ( Thunnus alalunga ) from Reunion Island (Southwest Indian Ocean) and South Africa in relation to biological and trophic characteristics

Munschy, Catherine; Bodin, Nathalie; Potier, Marie‐Claude; Héas-Moisan, K.; Pollono, C.; Degroote, Maxime; West, Wendy; Hollanda, Stéphanie; Puech, Alexis; Bourjea, Jérôme; Nikolic, Natacha

doi:10.1016/j.envres.2016.03.042

Cited by 22 publications

(26 citation statements)

References 87 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mean TL in white muscle of female albacore was relatively low in our study (<1% ww ), as seen in other tunas [ 3 , 23 , 54 ], but lower than that reported in albacore sampled from the Pacific Ocean (1.2–2.6% ww ; [ 27 ]) and from Reunion Island in the Indian Ocean (0.8–6.4% ww ; [ 55 ]). The TL was even lower compared to smaller albacore from the Pacific Ocean (average fish weight: 6.07 kg; 0.67–18.74% ww ; [ 56 ]) and from the South African coast (average fish weight: 11.0 kg; 3.7–13.5% ww ; [ 55 ]). High amounts of lipids in the somatic tissue is a typical characteristic of capital breeder species from temperate regions, such as the bluefin tuna [ 2 ], where the lipid deposits may be used later for metabolic activity during migration or for reproduction.…”

Section: Discussionsupporting

confidence: 46%

Lipid and fatty acid dynamics in mature female albacore tuna (Thunnus alalunga) in the western Indian Ocean

et al. 2018

View full text Add to dashboard Cite

Lipid composition in the reproductive and somatic tissues were investigated for female albacore tuna, Thunnus alalunga, in the western Indian Ocean, between latitude 18–21°S and longitude 56–60°E, from January 2014 to March 2015. Highest total lipids (TL) were found in the gonads of spawning-capable females (SCP) (mainly phospholipids, PL, triacylglycerols, TAG and wax esters, WE) and in the liver of females in the late regressing and regenerating ovary phases (mainly TAG, PL and sterols, ST). Muscle TL was low but exhibited high inter-individual variability. Correlations between gonadosomatic and hepatosomatic indices with TL and the lipid classes in albacore gonads and liver describes a pattern of reallocation of energy from the liver to the gonads during SCP. Female albacore were also observed to pursue foraging activities even during this period. Therefore, female albacore can be considered as a capital-income breeder relying mostly on stored lipids before the onset of reproduction and to a lesser extent on energy derived from concurrent feeding during the spawning season. Overall, the three examined tissues had similar general fatty acid profiles with the dominance of 22:6ω3 (docosahexaenoic acid, DHA), 16:0, 18:0 and 18:1ω9. The proportions of fatty acids varied with maturity stage and ovary lobe, with the smaller lobe having significantly higher proportions of essential fatty acids, as well as 16:0 and 18:1n9, compared to the larger one. Our results provide new information on the life-history and energy allocation strategy of albacore which will assist fisheries managers.

show abstract

Section: Discussionsupporting

confidence: 46%

Lipid and fatty acid dynamics in mature female albacore tuna (Thunnus alalunga) in the western Indian Ocean

et al. 2018

View full text Add to dashboard Cite

show abstract

“…PCBs 153 (38.0%) and 138 (25.0%) were the most prominent congeners, followed by PCB 180 (14.5%), PCBs 101 and 118 which gave an almost equal contribution (8.0–8.1%), while congeners PCBs 52, 77, 105, 114, 123, 126, 156, and 157 collectively constituted a small fraction of the total (6.3%). A recent investigation on persistent organic pollutants in albacore tunas reported gender-related differences on the PCB profile [ 26 ]. A predominance of tri-to pentachlorinated congeners was observed in females, while males showed a higher contribution of hexa-to heptachlorinated PCBs [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

“…A recent investigation on persistent organic pollutants in albacore tunas reported gender-related differences on the PCB profile [ 26 ]. A predominance of tri-to pentachlorinated congeners was observed in females, while males showed a higher contribution of hexa-to heptachlorinated PCBs [ 26 ]. In our case no variation in the isomeric classes of PCBs was observed, having both sexes a coincident fingerprint with a higher contribution of the middle chlorinated congeners (84.2%), followed by hepta-chlorine substituted PCB 180 (14.5%), while the low-chlorinated congeners made up a very small quota of the total PCBs (1.2%).…”

Section: Resultsmentioning

confidence: 99%

PCBs and PCDD/Fs in Bluefin Tuna: Occurrence and Dietary Intake

Barone

Storelli

Garofalo

et al. 2018

IJERPH

View full text Add to dashboard Cite

Polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-furans (PCDD/Fs) were measured in Mediterranean bluefin tuna (Thunnus thynnus) to verify the compliance with the EU regulations for food commercialization. The estimated intakes were also evaluated. The analyses were performed by gas chromatography-ion trap tandem mass spectrometry (GC-MS-MS). The PCBs were dominant (1132.0 ng g−1 l.w.), followed by PCDFs (23.2 pg g−1 l.w.) and PCDDs (8.5 pg g−1 l.w.). The pollutant levels (dl-PCBs: 0.7 pg TEQ/g w.w.; PCDD/Fs: 1.9 pg TEQ/g w.w.) and their sum expressed as TEQ values (2.6 pg TEQ/g w.w.) remained below the limits for human consumption proposed by the European Union. On the contrary, the sum of the six indicator non-dioxin-like PCBs (84.2 ng g−1 w.w.) was slightly above the maximum level fixed by the in-force legislation. The estimated dietary intakes for PCDD/Fs plus dl-PCBs were below the toxicological reference values (TRVs) set by various international bodies, while non-cancer and cancer risk assessment revealed a safety concern. Additionally, the estimated intake of ndl-PCBs exceeded the maximum levels set by different European countries. These findings suggest caution in tuna consumption together with an active and frequent surveillance of the chemical quality of its flesh.

show abstract

“…Similarly, certain organic pollutants have a well-known high affinity with lipids (e.g. Munschy et al, 2016). Sardines have a far higher total lipid content than anchovies in the GoL (Pethybridge et al, 2014), although specific lipid content may vary according to season.…”

Section: Variability Of Metal Concentrations In Fishmentioning

confidence: 99%

Patterns of trace metal bioaccumulation and trophic transfer in a phytoplankton-zooplankton-small pelagic fish marine food web

Chouvelon

Strady

Harmelin-Vivien

et al. 2019

Marine Pollution Bulletin

View full text Add to dashboard Cite

HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Distributed under a Creative Commons Attribution-NonCommercial-NoDerivatives| 4.0 International License

show abstract

Persistent Organic Pollutants in albacore tuna ( Thunnus alalunga ) from Reunion Island (Southwest Indian Ocean) and South Africa in relation to biological and trophic characteristics

Cited by 22 publications

References 87 publications

Lipid and fatty acid dynamics in mature female albacore tuna (Thunnus alalunga) in the western Indian Ocean

Lipid and fatty acid dynamics in mature female albacore tuna (Thunnus alalunga) in the western Indian Ocean

PCBs and PCDD/Fs in Bluefin Tuna: Occurrence and Dietary Intake

Patterns of trace metal bioaccumulation and trophic transfer in a phytoplankton-zooplankton-small pelagic fish marine food web

Contact Info

Product

Resources

About