Combining the use of gradients and reference areas to study bioaccumulation in wild oysters in the Hunter River estuary, New South Wales, Australia

Lincoln-Smith, Marcus P.; Cooper, Timothy F.

doi:10.1016/j.marpolbul.2003.11.003

Cited by 11 publications

(4 citation statements)

References 21 publications

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“…Fluoranthene and pyrene comprised 24±19% and 27±7% of total-PAHs in bivalve tissues, respectively. This was consistent with the greater concentrations of these PAHs in the sediments, and with a previous study that measured greater concentrations of fluoranthene and pyrene than other PAHs in rock oysters (Saccostrea glomerata) collected from the same region of the Hunter River (Lincoln-Smith and Cooper, 2004). No accumulation of low-MW PAHs was detected in the bivalves from the DC sediment exposures.…”

Section: Toxicity and Bioaccumulation Of Pah By Tellina Deltoidalissupporting

confidence: 92%

Application of surrogate methods for assessing the bioavailability of PAHs in sediments to a sediment ingesting bivalve

et al. 2006

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The usefulness of two surrogate methods for rapidly determining the bioavailability of PAHs in hydrocarbon-contaminated marine sediments was assessed. Comparisons are made between the PAHs accumulated by the benthic bivalve, Tellina deltoidalis, and the extractable-PAHs determined using a 6-h XAD-2 resin desorption method and a 4-h gut fluid mimic (GFM) extraction method. There were significant positive relationships between PAH bioaccumulation by the bivalves and sediment PAH concentrations. These relationships were not improved by normalising the sediment PAH concentrations to the organic carbon concentration. The average percentage lipid content of the bivalves was 1.47+/-0.22% and BSAFs for total-PAHs ranged from 0.06 to 0.80 (kgOC/kg lipid). The XAD-2 and GFM methods both extracted varying amounts of PAHs from the sediments. Low concentrations of PAHs were extracted by the GFM method (0.2-3.6% of total-PAHs in sediments) and the GFM results were inadequate for generalising about the bioavailability of the PAHs in the sediments. The XAD-2 method extracted greater amounts of PAHs (3-34% of total-PAHs in sediments), however, the total-PAH concentrations in the sediments provided a better, or equally good, prediction of PAH bioaccumulation by T. deltoidalis. The results indicated that these methods required further development before they can be applied routinely as surrogate methods for assessing the bioavailability of PAHs in sediments. Future research should be directed towards lowering detection limits and obtaining comparative data for a greater range of sediment types, contaminant classes and concentrations, and organisms of different feeding guilds and with different gut chemistry.

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Section: Toxicity and Bioaccumulation Of Pah By Tellina Deltoidalissupporting

confidence: 92%

Application of surrogate methods for assessing the bioavailability of PAHs in sediments to a sediment ingesting bivalve

et al. 2006

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“…We used the Sydney rock oyster, Saccostrea glomerata, as a biomonitor because it is sedentary, known to be a poor regulator of metals and since tissue metal concentrations have been shown to clearly relate to gradients of pollution. [27][28][29] Oysters are filter-feeders and may take-up metals both dissolved in the watercolumn and bound to particulate matter. 8 We therefore expect routes of exposure to be similar between the monitoring organism and members of the focal community.…”

Section: Environmental Impactmentioning

confidence: 99%

A biomonitor as a measure of an ecologically-significant fraction of metals in an industrialized harbour

2012

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Biomonitors are commonly used to assess levels of bioavailable contaminants in the environment, however the relationships between biomonitor tissue concentrations and ecological effects are rarely assessed. The present study investigated metal contamination within a highly industrialised harbour and ecological effects on sessile invertebrates. The native oyster Saccostrea glomerata was deployed as a biomonitor across twenty-six sites to test for correlations between metal levels in their tissues and the recruitment of hard-substrate invertebrates. Concentrations of lead and copper in oyster tissues were negatively correlated with densities of the dominant barnacle, Amphibalanus variegatus, and positively correlated with densities of the dominant polychaete, Hydroides elegans, and the two native encrusting bryozoans Celloporaria nodulosa and Arachnopusia unicornis. Results suggest that highly localised events drive contaminant availability and that these events pose a significant risk to fauna. Biomonitoring studies may be enhanced by running concurrent ecological surveys.

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“…Bivalves are adequate bioindicator species because they are sessile and filter feeders, they have a cosmopolitan distribution and they accumulate trace metals from the surrounding environment in their soft tissues (Ahn et al, 1996;Franco et al, 2002;Lincon-Smith and Cooper, 2002;Andral et al, 2004). In this study, the ribbed mussel Aulacomya atra was chosen as native bioindicator species to provide information about realistic environmental levels of trace metals and its effects.…”

Section: Introductionmentioning

confidence: 99%

Effect of seasonality on oxidative stress responses and metal accumulation in soft tissues of Aulacomya atra, a mussel from the South Atlantic Patagonian coast

Salvatore

Calcagno

Ortíz

et al. 2013

Marine Environmental Research

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Combining the use of gradients and reference areas to study bioaccumulation in wild oysters in the Hunter River estuary, New South Wales, Australia

Cited by 11 publications

References 21 publications

Application of surrogate methods for assessing the bioavailability of PAHs in sediments to a sediment ingesting bivalve

Application of surrogate methods for assessing the bioavailability of PAHs in sediments to a sediment ingesting bivalve

A biomonitor as a measure of an ecologically-significant fraction of metals in an industrialized harbour

Effect of seasonality on oxidative stress responses and metal accumulation in soft tissues of Aulacomya atra, a mussel from the South Atlantic Patagonian coast

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