Organic and trace metal contaminants in sediments, seawater and organisms from two Bermudan harbours

Burns, Kathryn A.; Ehrhardt, Manfred; MacPherson, Jennifer C.; Tierney, Julie A.; Kananen, Gerald; Connelly, Douglas P.

doi:10.1016/0022-0981(90)90174-b

Cited by 33 publications

(5 citation statements)

References 21 publications

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“…2000). The total concentration of PAHs (Table 2) found at sites 1, 2, 3, 4, 5 and 6 were similar to concentrations measured at highly polluted areas or areas impacted by oil spills, such as the Persian Gulf (Burns et al. 1990; Maher and Aislabie 1992; Ehrhardt and Burns 1993).…”

Section: Discussionsupporting

confidence: 73%

Diversity of hydrocarbon-degradingKlebsiellastrains isolated from hydrocarbon-contaminated estuaries

Rodrigues

Sakata

Comasseto

et al. 2009

Journal of Applied Microbiology

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Aims: To investigate the diversity and the catabolic capacity of oil‐degrading Klebsiella strains isolated from hydrocarbon‐contaminated sediments in Santos–São Vicente estuary systems in Brazil. Methods and Results: Klebsiella strains obtained from the estuary were characterized using 16S rRNA gene sequencing and BOX‐PCR patterns, testing their catabolic capacity to degrade toluene, xylene, naphthalene and nonane, and identifying the catabolic genes present in the oil‐degrading strains. Results show that Klebsiella strains were widespread in the estuary. Twenty‐one isolates from the Klebsiella genus were obtained; 14 had unique BOX patterns and were further investigated. Among four distinct catabolic genes tested (todC1, ndoB, xylE and alkB1), only the todC1 gene could be amplified in two Klebsiella strains. The biodegradation assay showed that most of the strains had the ability to degrade all of the tested hydrocarbons; however, the strains displayed different efficiencies. Conclusions: The oil‐degrading Klebsiella isolates obtained from the estuary were closely related to Klebsiella pneumoniae and Klebsiella ornithinolytica. The isolates demonstrated a substantial degree of catabolic plasticity for hydrocarbon degradation. Significance and Impact of the Study: The results of this study show that several strains from the Klebsiella genus are able to degrade diverse hydrocarbon compounds. These findings indicate that Klebsiella spp. can be an important part of the oil‐degrading microbial community in estuarine areas exposed to sewage.

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Section: Discussionsupporting

confidence: 73%

Diversity of hydrocarbon-degradingKlebsiellastrains isolated from hydrocarbon-contaminated estuaries

Rodrigues

Sakata

Comasseto

et al. 2009

Journal of Applied Microbiology

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“…The dissolution and leaching of contaminants from the CH marine landfill have led to elevated levels of trace metals in the water, sediment, and mussel tissue samples from CH (Jickells and Knap, 1984;Burns et al, 1990;Knap et al, 1991;Smith et al, 1998;Flood et al, 2005;Jones, 2010). Elevated metal:Ca ratios in the proximal CH corals relative to those measured from distal JSB appear to reflect input from land-based activities, specifically leaching of contaminants from the municipal landfill and surrounding sediment.…”

Section: Castle Harbourmentioning

confidence: 99%

Environmental assessment of metal exposure to corals living in Castle Harbour, Bermuda

et al. 2013

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Environmental contamination in Castle Harbour, Bermuda, has been linked to the dissolution and leaching of contaminants from the adjacent marine landfill. This study expands the evidence for environmental impact of leachate from the landfill by quantitatively demonstrating elevated metal uptake over the last 30 years in corals growing in Castle Harbour. Coral Pb/Ca, Zn/Ca and Mn/Ca ratios and total Hg concentrations are elevated relative to an adjacent control site in John Smith's Bay. The temporal variability in the Castle Harbour coral records suggests that while the landfill has increased in size over the last 35 years, the dominant input of metals is through periodic leaching of contaminants from the municipal landfill and surrounding sediment. Elevated contaminants in the surrounding sediment suggest that resuspension is an important transport medium for transferring heavy metals to corals. Increased winds, particularly during the 1990s, were accompanied by higher coral metal composition at Castle Harbour. Coupled with wind-induced resuspension, interannual changes in sea level within the Harbour can lead to increased bioavailability of sediment-bound metals and subsequent coral metal assimilation. At John Smith's Bay, large scale convective mixing may be driving interannual metal variability in the coral record rather than impacts from land-based activities. Results from this study provide important insights into the coupling of natural variability and anthropogenic input of contaminants to the nearshore environment.Published by Elsevier B.V.

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“…It is characterized by a strong ability for bio accumulation and bio-concentration of toxicants, a motionless endobenthic life style and a rather widespread distribution. Consequently, bivalve mollusks serve as bio-indicators and they have been widely used as sentinel species to monitor environmental contamination [75] as well as in biomarker studies to examine the effects of municipal effluents [76,77], pesticides [78] and heavy metals [79][80][81]. Table 4 lists quality and performance indicators for air.…”

Section: Marine Biota Indicatorsmentioning

confidence: 99%

Maritime pollutants in shipping and commercial European ports based on relevant physical and biogeochemical environmental parameters (IUPAC Technical Report)

Sakellariadou

2015

Pure and Applied Chemistry

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Organic and trace metal contaminants in sediments, seawater and organisms from two Bermudan harbours

Cited by 33 publications

References 21 publications

Diversity of hydrocarbon-degradingKlebsiellastrains isolated from hydrocarbon-contaminated estuaries

Diversity of hydrocarbon-degradingKlebsiellastrains isolated from hydrocarbon-contaminated estuaries

Environmental assessment of metal exposure to corals living in Castle Harbour, Bermuda

Maritime pollutants in shipping and commercial European ports based on relevant physical and biogeochemical environmental parameters (IUPAC Technical Report)

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