2020
DOI: 10.1002/ieam.4240
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Copper Concentrations in the Upper Columbia River as a Limiting Factor in White Sturgeon Recruitment and Recovery

Abstract: Currently there is little natural recruitment of white sturgeon (Acipenser transmontanus) in the Upper Columbia River located in British Columbia, Canada and Washington, USA. This review of life history, physiology, and behavior of white sturgeon, along with data from recent toxicological studies, suggest that trace metals, especially Cu, affect survival and behavior of early life stage fish. Sturgeon free embryos, first feeding embryos, and mixed feeding embryos utilize interstitial spaces between gravel. Alt… Show more

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Cited by 2 publications
(6 citation statements)
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“…However, all metal mixture models, with some exceptions for Pb, predict that Cu is the major contributor (>80%) to toxicity at >20% adverse response of juvenile white sturgeon exposed to porewater in Upper Columbia River Basin shallow sediment. This result, as well as comparisons of free Cu ion activities in porewater with EC20 activities determined from bioassay studies (see the section, In situ porewater: Compositions) and previous studies of metal fluxes across the sediment-water interface and sturgeon life cycles in the Upper Columbia River Basin, point to Cu as the element of toxicity to young sturgeon in the Upper Columbia River Basin (Balistrieri et al, 2018;Puglis et al, 2020).…”
Section: In Situ Porewater: Relative Contributions Of Metals To Adver...supporting
confidence: 62%
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“…However, all metal mixture models, with some exceptions for Pb, predict that Cu is the major contributor (>80%) to toxicity at >20% adverse response of juvenile white sturgeon exposed to porewater in Upper Columbia River Basin shallow sediment. This result, as well as comparisons of free Cu ion activities in porewater with EC20 activities determined from bioassay studies (see the section, In situ porewater: Compositions) and previous studies of metal fluxes across the sediment-water interface and sturgeon life cycles in the Upper Columbia River Basin, point to Cu as the element of toxicity to young sturgeon in the Upper Columbia River Basin (Balistrieri et al, 2018;Puglis et al, 2020).…”
Section: In Situ Porewater: Relative Contributions Of Metals To Adver...supporting
confidence: 62%
“…Laboratory bioassay studies indicate that increasing concentrations of bioavailable dissolved metals result in effective mortality and biomass reduction of juvenile white sturgeon (Ingersoll et al, 2014; Wang et al, 2014). Early life stages of sturgeon are exposed to bioavailable dissolved metals, especially Cu, in near‐surface porewater during their vulnerable hiding stage, resulting in potential adverse impacts on their growth and survival (Balistrieri et al, 2018; Puglis et al, 2020).…”
Section: Methodsmentioning
confidence: 99%
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“…The equilibrium partitioning (EqP) approach presented by the US Environmental Protection Agency (USEPA) in 2005 provides a framework for assessing whether metal concentrations in sediment and porewater (i.e., interstitial water) are expected to be associated with toxicological effects on benthic organisms (USEPA, 2005). There are many examples of the application of the EqP approach to sediment (DeForest et al, 2021), but fewer exist for porewater (Puglis et al, 2020; Santore & Ryan, 2015); to the best of our knowledge, there are no published examples wherein both approaches were applied and the accuracy of each approach was compared with that of the other. In this analysis, EqP evaluations of porewater and sediment chemistry are used in concert to understand the contributions of metals to toxicity observed in bioassays of field‐collected sediments.…”
Section: Introductionmentioning
confidence: 99%