PCBs and DDTs in Stenella coeruleoalba dolphins from the French Mediterranean coastal environment (2007–2009): Current state of contamination

Wafo, Emmanuel; Risoul, Véronique; Schembri, Thérèse; Lagadec, Véronique; Dhermain, Frank; Chacha, M.; Portugal, Henri

doi:10.1016/j.marpolbul.2012.07.034

Cited by 17 publications

(13 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Monochlorinated and dichlorinated biphenyls were scarcely represented. This type of homologue composition is found in other whales (Corsolini et al, 1995;Fair et al, 2010;Storelli et al, 2012;Wafo et al, 2012).…”

supporting

confidence: 67%

Concentration and congener pattern of polychlorinated biphenyls in blubber and liver of Hubbs' beaked whale (Mesoplodon carlhubbsi), using a sulfoxide and an Ag-ION solid phase extraction cartridge as a simplified cleanup technique for biological samples

Anezaki

Matsuda

Matsuishi

2016

Marine Pollution Bulletin

View full text Add to dashboard Cite

We performed the first known study of polychlorinated biphenyls (PCBs) concentrations and patterns in the blubber and liver of a Hubbs' beaked whale. Samples were pretreated with Supelclean™ sulfoxide and Discovery® Ag-ION solid phase extraction cartridges to remove whale oil. PCB concentrations in the blubber and liver were 13,000 and 7300ng/g lipid, respectively. Highly poisonous congeners such as dioxin-like (DL) PCBs tended to accumulate in the liver. The toxic equivalents (TEQ) of DL-PCBs in the liver (740pg-TEQ/g lipid) were higher than those in the blubber (74pg-TEQ/g lipid). The blubber and liver samples showed that hexachlorinated biphenyls were dominant among homologues, and PCB-153 was dominant among congeners. Several congeners accumulated disproportionately in the blubber and the liver (PCB-28, 52, 74, 99, and 118), while others did not persist (PCB-31, 70, and 110). This indicates that PCBs are metabolized differently according to their specific composition.

show abstract

supporting

confidence: 67%

Concentration and congener pattern of polychlorinated biphenyls in blubber and liver of Hubbs' beaked whale (Mesoplodon carlhubbsi), using a sulfoxide and an Ag-ION solid phase extraction cartridge as a simplified cleanup technique for biological samples

Anezaki

Matsuda

Matsuishi

2016

Marine Pollution Bulletin

View full text Add to dashboard Cite

show abstract

“…Congeners predominantly present in this mixture are C118, C138, C153 and C180. These represent 41 % of the total amount of PCBs (Wafo et al, 2012). PCBtot2 = (C118+ C138+C153+C180) / 0.41 For the pesticides, contamination can be characterized by the total concentration in DDT (∑DDT), the sum of pp'-DDD, pp'-DDE and pp'-DDT.…”

Section: Data Processingmentioning

confidence: 99%

Does trophic level drive organic and metallic contamination in coral reef organisms?

Fey

Bustamante

Bosserelle

et al. 2019

Science of The Total Environment

View full text Add to dashboard Cite

Metallic and organic pollutants constitute a serious threat for coral reef ecosystems, potentially affecting a great number of species interacting within complex trophodynamic processes.Pesticides, PCBs and trace elements were measured on coral reef communities of three Pacific islands (Moorea, Wallis and New Caledonia) in relation with  15 N values, a proxy of trophic level. Several potential sources of organic matter, benthic invertebrates and fish belonging to various trophic strategies were sampled at each island. Wallis and New Caledonia displayed, respectively, the highest concentrations of pesticides and trace elements. In the three islands, most trace element concentrations (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and V) decreased when  15 N was rising (i.e. bioreduction), whereas Hg and Se biomagnified with increasing  15 N values. Only few trace elements in some islands did not show any significant trend in relation with  15 N (i.e., Ag in New Caledonia, Zn in Wallis and As plus Zn in Moorea). PCBs concentrations showed a significant bioreduction in New Caledonia and in Moorea, but a significant biomagnification in Wallis. Aldrin and heptachlor were the only pesticides to show a similar significant bioreduction in the three islands. Other pesticides, such as chlordecone, diazinon, endosulfan I and II, heptachlor-epoxide A and B, lindane and pp'-DDE displayed contrasted patterns (e.g. chlordecone significantly biomagnified in New Caledonia, significantly bioreduced in Wallis and did not displayed any significant trend in Moorea).Finally, for unclear reasons, Moorea displayed only negative significant correlations between  15 N and all pesticides (except pp'-DDT). Our results highlight that trophic level, here assessed through  15 N values, is a good predictor of metallic trace elements biomagnification or bioreduction in coral reef organisms. However, at large spatial scale, trophic level relevance to predict pesticides and PCBs biomagnification or bioreduction should be considered with caution and studied in close relation with local characteristics.

show abstract

“…Cd and Hg) or organochlorine pollutants in their tissues (e.g. Adams and McMichael 1999;Wafo et al 2012). Fish are particularly useful to assess contamination status and distribution of pollutants; especially if they are site-attached or even territorial, living in benthic habitats and have a high trophic level (carnivorous) (e.g.…”

Section: Introductionmentioning

confidence: 99%

Spatial variability of metallic and organic contamination of anguilliform fish in New Caledonia

Briand

Letourneur

Bonnet

et al. 2013

Environ Sci Pollut Res

View full text Add to dashboard Cite

New Caledonia is one of the main hot spots of biodiversity on the planet. Large amounts of contaminants are discharged into the lagoon as a result of increasing anthropogenic activities such as intense mining, urbanization, and industrialization. Concentrations of 14 trace elements and 26 persistent organic pollutants (POPs: PCBs and pesticides) were measured in the muscles of two anguilliform fish species, over a coast to barrier reef gradient in two lagoon areas differently exposed to anthropic disturbances. This study emphasizes the high trace element contamination status of anguilliform fish and also highlights slight but perceptible organic pollution. The contamination extends throughout the lagoon, from coast to barrier reef, even in areas remote from emission points. High levels of trace elements, especially those linked to mining activities (i.e., Co, Cr, Fe, Mn, and Ni), were detected in coastal sites. Furthermore, the large dispersion of most POPs throughout the entire lagoon poses the question of their potential toxicity on marine organisms from numerous habitats. Our results underline the need for long-term monitoring of various contaminants over large spatial and time scales.

show abstract

PCBs and DDTs in Stenella coeruleoalba dolphins from the French Mediterranean coastal environment (2007–2009): Current state of contamination

Cited by 17 publications

References 24 publications

Concentration and congener pattern of polychlorinated biphenyls in blubber and liver of Hubbs' beaked whale (Mesoplodon carlhubbsi), using a sulfoxide and an Ag-ION solid phase extraction cartridge as a simplified cleanup technique for biological samples

Concentration and congener pattern of polychlorinated biphenyls in blubber and liver of Hubbs' beaked whale (Mesoplodon carlhubbsi), using a sulfoxide and an Ag-ION solid phase extraction cartridge as a simplified cleanup technique for biological samples

Does trophic level drive organic and metallic contamination in coral reef organisms?

Spatial variability of metallic and organic contamination of anguilliform fish in New Caledonia

Contact Info

Product

Resources

About