Feeding trial on rainbow trout: comparison of dry fish feed and Baltic herring as a source of PCDD/Fs and PCBs

Isosaari, Pirjo; Vartiainen, Terttu; Hallikainen, Anja; Ruohonen, Kari

doi:10.1016/s0045-6535(02)00128-5

Cited by 49 publications

(36 citation statements)

References 26 publications

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“…Although scientists have revealed DL-PCBs to bioaccumulate more efficiently than PCDD/Fs (Blanco et al 2007;Isosaari et al 2002), uptake factors of PCDD/Fs in roach were comparable to those determined for DL-PCBs and exhibited values between 1.2 and 4.3, which slightly correlated (r 2 = 0.44) with their initial concentrations in the sediments. This might demonstrate that the uptake kinetics of PCDD/Fs and DL-PCBs follow different principles and that the uptake of dioxin is a function of how much sediment is ingested.…”

Section: Congener-specific Uptake Following 28 Days Of Exposurementioning

confidence: 70%

Bioanalytical and instrumental screening of the uptake of sediment-borne, dioxin-like compounds in roach (Rutilus rutilus)

Eichbaum

Brinkmann

Nuesser

et al. 2016

Environ Sci Pollut Res

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To examine the uptake of dioxin-like compounds (DLCs), common roaches (Rutilus rutilus) were exposed for 28 days to differently contaminated sediments from two major European rivers in a purpose-built facility. Dietary transfer of DLCs was investigated by exposing fish to sediments inoculated or non-inoculated with black worms (Lumbriculus variegatus). Dioxin-like polychlorinated biphenyls (DL-PCBs), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), measured via high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS) in sediments and whole fish, were used to calculate toxicity equivalent quotients (TEQs). TEQs were compared with biological toxicity equivalent quotients (BEQs) determined via the 7-ethoxyresorufin-O-deethylase (EROD) assay, performed with mammalian (H4IIE) and fish (RTL-W1) liver cell lines. TEQs and BEQs indicated an uptake of sediment-borne DLCs by roach, which was independent of sediment contamination levels, but rather reflected sediment-specific characteristics. For most sediment treatments, DLC uptake did not increase with time. Highest congener-specific uptake (DL-PCB 123) was 10-fold compared to control. Exposure to worm-inoculated sediment of highest overall DLC contamination caused a 2-fold (TEQ and H4IIE BEQ) greater uptake of DLCs by fish compared to the respective non-inoculated treatment. H4IIE cells showed the greatest sensitivity (0.37 ± 0.25 pM TCDD) and the strongest correlation with TEQs (r (2) = 0.79), hence, they seem to be best suited for DLC screening of sediments and biota, amended by compound-specific instrumental analysis if required.

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Section: Congener-specific Uptake Following 28 Days Of Exposurementioning

confidence: 70%

Bioanalytical and instrumental screening of the uptake of sediment-borne, dioxin-like compounds in roach (Rutilus rutilus)

Eichbaum

Brinkmann

Nuesser

et al. 2016

Environ Sci Pollut Res

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show abstract

“…The transfer rate for DL-PCBs was shown to be higher than that of PCDD/F in Atlantic salmon Lundebye et al, 2004) and rainbow trout (Isosaari et al, 2002). Table 4 shows dioxin and DL-PCBs contamination matter of Atlantic salmon due to feeding differently contaminated feed.…”

Section: Dioxins and Dioxin-like Pcbs (Dl-pcbs)mentioning

confidence: 98%

Opinion of the Scientific Panel on contaminants in the food chain [CONTAM] related to the safety assessment of wild and farmed fish

2005

EFSA Journal

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“…The mean transfer rate of PCDDs/Fs from commercial fish feed into the flesh of rainbow trout increased with the duration of exposure and ranged from 11.1 % at 6 months to 30.7 % at 19 months; there was a direct correlation between concentration in the lipid fraction of feed and that in fish flesh [70]. The feed-tissue transfer rate for DL-PCBs was higher than that of PCDDs/Fs in Atlantic salmon [71,72] and rainbow trout [73]. Interestingly, dioxins might accumulate also in fish eggs [70], a favoured delicacy for several consumer groups.…”

Section: )mentioning

confidence: 92%

Sustainability, Security and Safety in the Feed-to-Fish Chain: Focus on Toxic Contamination

Mantovani¹

2015

IJNFS

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Abstract:The paper discusses the issue of feed ingredients in aquaculture as a telling example of implementation of a sustainable food safety strategy, aimed at protecting the health of next generation, under the One Health paradigm. Finfish and fishery products are a main nutrition security component as a valuable source of animal protein, particularly in developing countries. In addition, they are a critical source of essential oligo-nutrients, such as polyunsaturated fatty acids (PUFAs) and iodine. Production and consumption of fish has greatly increased in the last decade, mostly due to the growth of aquaculture. While the demand for aquaculture products continues to increase, there is the need to address consumers' concerns related to the nutritional quality and safety. In fact, both wild and farmed finfish can represent a significant source of exposure to contaminants for the consumer: noticeably, caught and farmed fish have a comparable content of nutrients and contaminants. Aquaculture feeds made of fish meal and fish oil are the main vehicle for transfer of environmental pollutants to farmed fish. The main fish contaminants (e.g., methylmercury, PCBs, PBDE) can bioaccumulate and affect development in humans. Feed ingredients as well fish species have a different liability to contamination depending, e.g., on the lipophilicity of the specific chemicals. Up-to-date risk-benefit assessments show that high intake of fish may lead to an undesirable intake of pollutants which is not sufficiently balanced by the concurrent intake of protective nutrients, such as PUFA. The use of vegetable-based feed ingredients in aquaculture has been explored from the standpoints of economic sustainability and fish productivity to a greater extent than from those of food safety and nutritional value. Available data show that vegetable oils can significantly modulate the lipid profile in fish flesh, depending on the oil and fish species. The use of vegetable ingredients can drastically reduce the accumulation of the main contaminants in fish; likewise the presence of other "unconventional" contaminants (e.g. PAHs) and the nutritional value of fish flesh could deserve more attention in the assessment of novel aquaculture feeds.

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Feeding trial on rainbow trout: comparison of dry fish feed and Baltic herring as a source of PCDD/Fs and PCBs

Cited by 49 publications

References 26 publications

Bioanalytical and instrumental screening of the uptake of sediment-borne, dioxin-like compounds in roach (Rutilus rutilus)

Bioanalytical and instrumental screening of the uptake of sediment-borne, dioxin-like compounds in roach (Rutilus rutilus)

Opinion of the Scientific Panel on contaminants in the food chain [CONTAM] related to the safety assessment of wild and farmed fish

Sustainability, Security and Safety in the Feed-to-Fish Chain: Focus on Toxic Contamination

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