PLoS ONE 14(9):Įditor: Judi Hewitt, University of Waikato, NEW ZEALAND
oregonensis is a useful biomonitors for quantifying the impact of the decommissioned papermill, and are candidate biomonitors for assessing the impact of similar industrial development projects on intertidal ecosystems.Ĭitation: Sizmur T, Campbell L, Dracott K, Jones M, O’Driscoll NJ, Gerwing T (2019) Relationships between Potentially Toxic Elements in intertidal sediments and their bioaccumulation by benthic invertebrates. oregonensis, observed at all sites, feeds on the fibers associated with the papermill discharge. However, we did observe a negative relationship between sediment pH and the Biota-Sediment Accumulation Factor (BSAF) of most PTEs for Oregon pill bugs ( Gnorimosphaeroma oregonensis). Overall, we did not observe any relationship between PTE concentrations in the sediment and PTE concentrations in invertebrate tissues. Benthic invertebrate community assemblages confirm that sediments have mostly recovered from prior industrial development associated with discharge of papermill sludge. There was no indication that sediments of the salmon cannery were polluted, but acidic sediments adjacent to the papermill contained elevated concentrations of Cd, Cr, Hg and Pb. Our aim was to elucidate baseline levels of PTE concentrations at sites that may be recovering from disturbance associated with prior industrial development and identify organisms that could be used to biomonitor the impact of future industrial developments. We sampled and analysed PTEs in sediments and benthic invertebrates from five sites in the Skeena Estuary (British Columbia, Canada), including sites adjacent to an abandoned cannery and a decommissioned papermill. The bioaccumulation of Potentially Toxic Elements (PTEs) by benthic invertebrates in estuarine sediments is poorly understood.
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