The usefulness of transplantation studies in monitoring of metals in the marine environment: South African experience

Greenfield, Richard; Brink, Kerry; Degger, Natalie; Wepener, Victor

doi:10.1016/j.marpolbul.2014.03.032

Cited by 20 publications

(11 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results suggest also the presence of other contaminant sources in the Marennes-Oléron Bay, such as local inputs from agricultural or industrial activities, as more deeply discussed in Luna-Acosta et al (submitted to this volume) and are in agreement with different studies (e.g. Greenfield et al 2014, Hédouin et al 2011, Orbea & Cajaraville 2006) that show that transplant experiments with bivalves could be useful to assess the origin of chemical pollution.…”

Section: Pah and Pop Body Burdens In Transplanted Juvenile Oystersupporting

confidence: 89%

Persistent organic pollutants in a marine bivalve on the Marennes–Oléron Bay and the Gironde Estuary (French Atlantic Coast)—Part 2: Potential biological effects

Luna‐Acosta

Bustamante

Budzinski

et al. 2015

Science of The Total Environment

View full text Add to dashboard Cite

Contaminant effects on defence responses of ecologically and economically important organisms, such as the Pacific oyster Crassostrea gigas, are likely to influence their ability to resist infectious diseases, particularly at the young stages. The aim of this study was to explore the potential relationships between organic contaminants accumulated in the soft tissues of juvenile oysters, defence responses and physiological condition. Oysters were transplanted during summer and winter periods in different sites in the Marennes-Oléron Bay, the first area of oyster production in France, and in the Gironde Estuary, the biggest estuary in Occidental Europe. Amongst the battery of biochemical and physiological biomarkers applied in the present work [superoxide dismutase (SOD), catalase, glutathione peroxidase (GPx), malondyaldehyde (MDA), catecholase, laccase and lysozyme in gills, digestive glands, mantle and haemolymph, glycogen, proteins and lipids in the digestive gland and the condition index at the whole-organism level], MDA and lysozyme in the digestive gland and SOD, GPx and laccase in plasma contributed in order to significantly discriminate the sites in which oysters bioaccumulated different levels of heavy polycyclic aromatic hydrocarbons (HPAHs), polychlorobiphenyls (PCBs), polybromodiphenylethers (PBDEs), dichlorodiphenyltrichloroethanes (DDTs) and lindane. These results strengthen the hypothesis that it is possible to differentiate sites depending on their contamination levels and biological effects by carrying out studies with transplanted juvenile oysters. In addition, correlations were found between antioxidant and immune-defence responses, and PAH and DDT body burdens in the first area of oyster production in France (the Marennes-Oléron Bay) and where considerable oyster mortalities have been reported. This result suggests that the presence of organic chemical contaminants in the Marennes-Oléron Bay may influence defence responses in juveniles of C. gigas, and, therefore, could influence their ability to resist infectious diseases.

show abstract

Section: Pah and Pop Body Burdens In Transplanted Juvenile Oystersupporting

confidence: 89%

Persistent organic pollutants in a marine bivalve on the Marennes–Oléron Bay and the Gironde Estuary (French Atlantic Coast)—Part 2: Potential biological effects

Luna‐Acosta

Bustamante

Budzinski

et al. 2015

Science of The Total Environment

View full text Add to dashboard Cite

show abstract

“…Several studies have previously reported differences in response between caged and native organisms exposed to environmental pollution. Observed differences were attributed to several factors: absence of cumulative long-term effects of pollutants in caged organisms (Nigro et al, 2006); or the existence of adaptive traits or compensatory mechanisms in native mussels chronically exposed to pollution, leading for example to lower bioaccumulation levels than in short-term caged organisms or to significant differences in biomarker responses (Regoli and Principato, 1995;Marigómez et al, 2013;Greenfield et al, 2014).…”

Section: Comparison Of Native and Caged Mussels Responsesmentioning

confidence: 99%

Active and passive biomonitoring suggest metabolic adaptation in blue mussels ( Mytilus spp.) chronically exposed to a moderate contamination in Brest harbor (France)

et al. 2015

View full text Add to dashboard Cite

Brest harbor (Bay of Brest, Brittany, France) has a severe past of anthropogenic chemical contamination, but inputs tended to decrease, indicating a reassessment of its ecotoxicological status should be carried out. Here, native and caged mussels (Mytilus spp.) were used in combination to evaluate biological effects of chronic chemical contamination in Brest harbor. Polycyclic aromatic hydrocarbon (PAH) contamination was measured in mussel tissues as a proxy of harbor and urban pollution. Biochemical biomarkers of xenobiotic biotransformation, antioxidant defenses, generation of reducing equivalents, energy metabolism and oxidative damage were studied in both gills and digestive glands of native and caged mussels. In particular, activities of glutathione-S-transferase (GST), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione reductase (GR), NADP-dependent isocitrate dehydrogenase (IDP), pyruvate kinase (PK) and phosphoenolpyruvate carboxykinase (PEPCK) were measured and lipid peroxidation was assessed by malondialdehyde (MDA) quantification. In addition, a condition index was calculated to assess the overall health of the mussels. Moderate PAH contamination was detected in digestive glands of both native and caged individuals from the exposed site. Modulations of biomarkers were detected in digestive glands of native harbor mussels indicating the presence of a chemical pressure. In particular, results suggested increased biotransformation (GST), antioxidant defenses (CAT), NADPH generation (IDP) and gluconeogenesis (PEPCK), which could represent a coordinated response against chemically-induced cellular stress. Lipid peroxidation assessment and condition index indicated an absence of acute stress in the same mussels suggesting metabolic changes could, at least partially, offset the negative effects of contamination. In caged mussels, only GR was found modulated compared to non-exposed mussels but significant differences in oxidative stress and energy-related biomarkers were observed compared to native harbor mussels. Overall, these results suggested mussels chronically exposed to contamination have set up metabolic adaptation, which may contribute to their survival in the moderately contaminated harbor of Brest. Whether these adaptive traits result from phenotypic plasticity or genetic adaptation needs to be further investigated.

show abstract

“…Information on heavy metal pollution in RBH suggest that areas of concern include the Bhizolo Canal and the bulk terminal, with high sediment concentrations of Cu, Cr, Zn and Mn in these areas compared to other harbours in South Africa (Wepener and Vermeulen 2005;Greenfield et al 2014;Izegaegbe 2020). Although Cr concentrations in RBH were shown to be very high, the low bioavailability of this metal translated into a low risk of bioaccumulation (Wepener and Vermeulen 2005).…”

Section: Resultsmentioning

confidence: 99%

Bioaccumulation of trace metals in the ocypodid burrowing crab, Paratylodiplax blephariskios, in Richards Bay Harbour, South Africa

Izegaegbe

Vivier

Mzimela

2021

African Journal of Aquatic Science

View full text Add to dashboard Cite

Bioaccumulation of metals in an endemic ocypodid burrowing mud crab, Paratylodiplax blephariskios, was investigated in contaminated mudflats of the subtropical Richards Bay Harbour (RBH), South Africa. Following sampling of water, sediment and mud crabs from three sites (Bhizolo, Mzingazi and Richards Bay Coal Terminal) in RBH during 2016/2017, tissue and sediment samples were oven dried for 48 hours, weighed and digested in an advanced microwave digester. Samples were then analyzed in triplicate for Al, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn using inductively coupled plasma optical emission spectrometry (ICP-OES). Highest tissue concentrations of Co, Cu, Mn, Ni, Pb and Zn were recorded at Bhizolo. High Biota Sediment Accumulation Factor (BSAF) values for Cd, Cu, Mn, Ni and Zn at all sites confirmed that crabs bioaccumulated these metals. The high Cr concentration in sediment (Bhizolo: 104 ± 18.2 µg g −1 ; Richards Bay Coal Terminal (RBCT): 104 ± 29.2 µg g −1 ; Mzingazi: 94.1 ± 38.7 µg g −1 ) was not reflected in the biota-sediment accumulation factor (BSAF) value, suggesting low bioavailability of Cr. High BSAF values for Cd, Cu, Mn, Ni and Zn suggest that the threshold of regulation in P. blephariskios was exceeded, resulting in net bioaccumulation.

show abstract

The usefulness of transplantation studies in monitoring of metals in the marine environment: South African experience

Cited by 20 publications

References 16 publications

Persistent organic pollutants in a marine bivalve on the Marennes–Oléron Bay and the Gironde Estuary (French Atlantic Coast)—Part 2: Potential biological effects

Persistent organic pollutants in a marine bivalve on the Marennes–Oléron Bay and the Gironde Estuary (French Atlantic Coast)—Part 2: Potential biological effects

Active and passive biomonitoring suggest metabolic adaptation in blue mussels ( Mytilus spp.) chronically exposed to a moderate contamination in Brest harbor (France)

Bioaccumulation of trace metals in the ocypodid burrowing crab, Paratylodiplax blephariskios, in Richards Bay Harbour, South Africa

Contact Info

Product

Resources

About