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  • 1
    Electronic Resource
    Electronic Resource
    Tributyltin speciation in aquatic matrices by CGC-FPD and CGC-MS confirmation (1992)
    Springer
    Microchimica acta 109 (1992), S. 87-91 
    Details
    ISSN: 1436-5073
    Keywords: Organotin speciation ; tetraalkyltin derivatives ; tin selective FPD ; CGC-SIM-MS, organotin cleanup
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract An analytical procedure for the determination of tributyltin (TBT) in seawater, sediments and biota is described. Extraction of TBT as chloride is achieved by hydrochloric acid treatment followed by a liquid extraction using a modified solvent with a metal coordinating ligand, and a Grignard derivatization (CH3MgCl). The organotin fraction was isolated from the derivatized extract by column chromatography. The final determination was accomplished by on-column capillary gas chromatography (CGC) coupled to a flame photometric detector (FPD) and mass spectrometry (MS) confirmation. The relative detection limits of the analytical procedure were dependent of the environmental compartment, 0.5 ng 1–1 (as TBT) for seawater, and 0.1 ng g–1 and 0.4 ng g–1 for sediments and biota, respectively. The TBT recovery of fortified samples was in the range of 90% for water and biota, and of 60% in case of sediments. The reproducibility (RSD) of the whole procedure for three independent replicates was around 15%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01243216
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Sterol content and composition in the CWC Dendrophyllia cornigera and sediment from the Cantabrian Sea (Northeast Atlantic Ocean) and the Menorca Channel (Western Mediterranean Sea) (2019)
    PANGAEA
    Details
    Publication Date: 2024-03-14
    Keywords: Area/locality; Cantabrian Sea; cold-water corals; DEPTH, sediment/rock; Event label; fatty acids; fatty alcohols; Garcia del Cid; INDEMARES-4; INDEMARES-4_Menorca-Corals; INDEMARES-4_Menorca-Sediment; JAGO; lipids; M84/5; M84/5_Cantabrian-Sea; Mediterranean Sea; Meteor (1986); Sample material; Species; sterols; Sterols; Submersible JAGO; Television-Grab; TVG; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 198 data points
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    DATA PANGAEA
  • 3
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    Fatty alcohol content and composition in the CWC Dendrophyllia cornigera and sediment from the Cantabrian Sea (Northeast Atlantic Ocean) and the Menorca Channel (Western Mediterranean Sea) (2019)
    PANGAEA
    Details
    Publication Date: 2024-03-14
    Keywords: Area/locality; Cantabrian Sea; cold-water corals; DEPTH, sediment/rock; Event label; fatty acids; fatty alcohols; Fatty alcohols; Garcia del Cid; INDEMARES-4; INDEMARES-4_Menorca-Corals; INDEMARES-4_Menorca-Sediment; JAGO; lipids; M84/5; M84/5_Cantabrian-Sea; Mediterranean Sea; Meteor (1986); Sample material; Species; sterols; Submersible JAGO; Television-Grab; TVG; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 198 data points
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    DATA PANGAEA
  • 4
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    Fatty acid content and composition in the CWC Dendrophyllia cornigera and sediment from the Cantabrian Sea (Northeast Atlantic Ocean) and the Menorca Channel (Western Mediterranean Sea) (2019)
    PANGAEA
    Details
    Publication Date: 2024-03-14
    Keywords: Area/locality; Cantabrian Sea; cold-water corals; DEPTH, sediment/rock; Event label; fatty acids; Fatty acids; fatty alcohols; Garcia del Cid; INDEMARES-4; INDEMARES-4_Menorca-Corals; INDEMARES-4_Menorca-Sediment; JAGO; lipids; M84/5; M84/5_Cantabrian-Sea; Mediterranean Sea; Meteor (1986); Monounsaturated fatty acids; Polyunsaturated fatty acids; Sample material; Saturated fatty acids; Species; sterols; Submersible JAGO; Television-Grab; TVG; van Veen Grab; VGRAB
    Type: Dataset
    Format: text/tab-separated-values, 550 data points
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    DATA PANGAEA
  • 5
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    Fatty acid, fatty alcohol and sterol content and composition in the CWC Dendrophyllia cornigera and sediment from the Cantabrian Sea (Northeast Atlantic Ocean) and the Menorca Channel (Western Mediterranean Sea) (2019)
    PANGAEA
    In:  Supplement to: Gori, Andrea; Tolosa, Imma; Orejas, Covadonga; Rueda, Lucia; Viladrich, Nuria; Grinyó, Jordi; Flögel, Sascha; Grover, Renaud; Ferrier-Pagès, Christine (2018): Biochemical composition of the cold-water coral Dendrophyllia cornigera under contrasting productivity regimes: Insights from lipid biomarkers and compound-specific isotopes. Deep Sea Research Part I: Oceanographic Research Papers, 141, 106-117, https://doi.org/10.1016/j.dsr.2018.08.010
    Details
    Publication Date: 2024-03-14
    Description: The cold-water coral (CWC) Dendrophyllia cornigera is widely distributed in areas of both high and low productivity, suggesting a significant trophic plasticity of this coral depending on the food available in the environment. In this study, lipid biomarkers and their isotopic signature were compared in colonies of D. cornigera and sediment from the highly productive Cantabrian Sea (Northeast Atlantic Ocean) and the less productive Menorca Channel (Western Mediterranean Sea). Lipid content and composition in coral tissue clearly reflected the contrasting productivity in the two areas. Cantabrian corals presented higher content in fatty acids (FA), fatty alcohols and sterols than Menorca corals. Energy storage (saturated + mono-unsaturated FA) to structural (poly-unsaturated FA) ratio was higher in Cantabrian than in Menorca corals. The high ΣC20:1 content as well as PUFA(n-3)/PUFA(n-6) ratio suggest that Cantabrian corals mainly feed on phytoplankton and herbivorous grazers. This is also supported by the higher mono-unsaturated fatty alcohols (MUOH) and long chain mono-unsaturated fatty alcohols (LCMUOH) content in Cantabrian compared to Menorca corals. Conversely, higher PUFA(n-6) content in Menorca corals, with the dominance of C22:4(n-6) and C20:4(n-6), as well as the dominance of cholesterol and norC27Δ5,22 among sterols, point to a higher trophic role of dinoflagellates and invertebrates. The observed geographical variability in trophic ecology supports a high trophic plasticity of D. cornigera, which may favour the wide distribution of this CWC in areas with highly contrasted food availability.
    Keywords: Cantabrian Sea; cold-water corals; fatty acids; fatty alcohols; lipids; Mediterranean Sea; sterols
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
  • 6
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    Biochemical composition of the cold-water coral Dendrophyllia cornigera under contrasting productivity regimes: insights from lipid biomarkers and compound-specific isotopes (2018)
    Elsevier
    In:  Deep Sea Research Part I: Oceanographic Research Papers, 141 . pp. 106-117.
    Details
    Publication Date: 2021-06-04
    Description: Highlights • Higher lipid content in D. cornigera in Cantabrian Sea than in Menorca Channel. • Lipid composition and δ13C values reflected contrasted food captured by corals. • Feeding on phytoplankton and herbivorous grazers by Cantabrian D. cornigera. • Main trophic role of dinoflagellates and invertebrates for Menorca D. cornigera. • High trophic plasticity of D. cornigera. Abstract The cold-water coral (CWC) Dendrophyllia cornigera is widely distributed in areas of both high and low productivity, suggesting a significant trophic plasticity of this coral depending on the food available in the environment. In this study, lipid biomarkers and their isotopic signature were compared in colonies of D. cornigera and sediment from the highly productive Cantabrian Sea (Northeast Atlantic Ocean) and the less productive Menorca Channel (Western Mediterranean Sea). Lipid content and composition in coral tissue clearly reflected the contrasting productivity in the two areas. Cantabrian corals presented higher content in fatty acids (FA), fatty alcohols and sterols than Menorca corals. Energy storage (saturated + mono-unsaturated FA) to structural (poly-unsaturated FA) ratio was higher in Cantabrian than in Menorca corals. The high ΣC20:1 content as well as PUFA(n-3)/PUFA(n-6) ratio suggest that Cantabrian corals mainly feed on phytoplankton and herbivorous grazers. This is also supported by the higher mono-unsaturated fatty alcohols (MUOH) and long chain mono-unsaturated fatty alcohols (LCMUOH) content in Cantabrian compared to Menorca corals. Conversely, higher PUFA(n-6) content in Menorca corals, with the dominance of C22:4(n-6) and C20:4(n-6), as well as the dominance of cholesterol and norC27Δ5,22 among sterols, point to a higher trophic role of dinoflagellates and invertebrates. The observed geographical variability in trophic ecology supports a high trophic plasticity of D. cornigera, which may favour the wide distribution of this CWC in areas with highly contrasted food availability.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1016/j.dsr.2018.08.010
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 7
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    Survey of legacy and emerging per- and polyfluorinated alkyl substances in Mediterranean seafood from a North African ecosystem (2022)
    Elsevier
    Details
    Publication Date: 2024-02-07
    Description: Highlights • Investigation on PFAS in seafood was conducted for the first time in North Africa. • Long-chain PFAS were predominant in seafood from the study area. • Among seafood, crustaceans exhibited the highest concentrations of PFAS. • PFOS was the predominant PFAS compound in most marine species. • Human health risks for PFAS exposure via seafood consumption was minimal. Abstract Despite the ubiquity of per- and polyfluorinated alkyl substances (PFAS) in all environmental compartments, little is known about the pollution they cause on the African continent, neither on levels, nor effects. Here we examined the occurrence and levels of 21 legacy and emerging PFAS in 9 marine species (3 fish, 2 crustaceans and 4 mollusks) collected from Bizerte lagoon, Northern Tunisia. Furthermore, assessment of potential human health risks through consumption of contaminated seafood was examined. This is the first study assessing PFAS in Mediterranean coastal areas of North Africa. Twelve out of the 21 targeted PFAS were detected, evidencing the occurrence of PFAS in seafood from North Africa, albeit at low levels. The Ʃ21PFAS concentrations in all seafood samples ranged from 0.202 ng g−1 dry weight (dw) to 2.89 ng g−1 dw, with a mean value of 1.10 ± 0.89 ng g−1 dw. The profiles of PFAS varied significantly among different species, which might be related to their different trophic level, protein content, feeding behaviour and metabolism. Generally, current exposure to PFAS through seafood consumption indicates that it should not be of concern to the local consumers, at least for those PFAS for which information is available.
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 8
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    A review on per- and polyfluorinated alkyl substances (PFASs) in microplastic and food-contact materials (2022)
    IOP
    Details
    Publication Date: 2024-02-07
    Description: Plastic, paper and cardboard are widely used as food contact materials (FCMs), due to its numerous favourable characteristics. However, they are usually coated with hazardous substances, such as per- and polyfluorinated alkyl substances (PFASs). PFASs, with its functional properties of oil- and water-repellency, can migrate from FCMs into the food and cause potential risk to human health. There are also increasing concerns about the harm that FCMs can cause to the environment. These concerns include accumulation of non-degradable plastics in the environment, generation of microplastics (MPs) and nanoplastics, and release of PFASs from FCMs. While many reviews have been conducted on PFASs in the environment, including their occurrence, fate, toxicity, biodegradation, migration in ecosystems and remediation technologies, a systematic review of PFASs in FCMs and MPs is currently lacking. In addition, our knowledge of the PFAS sorption processes on MPs is rather limited, and in particular their desorption processes. Thus, this review aims to (1) review the presence of various classes of PFASs in FCMs and their migration into food, (2) review the PFASs in MPs and summarize the sorption mechanisms, and factors that influence their sorption behaviour on MPs in the aquatic environment, and (3) identify the current research gaps and future research directions to predict the risks associated with the presence and sorption of PFASs in FCMs and MPs.
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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