Influence of natural organic matter (NOM) quality on Cu–gill binding in the rainbow trout (Oncorhynchus mykiss)

Gheorghiu, Cristina; Smith, D. Scott; Al-Reasi, Hassan A.; McGeer, James C.; Wilkie, Michael P.

doi:10.1016/j.aquatox.2010.01.003

Cited by 27 publications

(17 citation statements)

References 34 publications

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“…These stock solutions, along with a terrestrial reverse osmosis organic matter isolate, Luther Marsh (LM) organic matter, were used to prepare daily fluorescence standards. Details on LM organic matter sample location as well as chemical characteristics are found in Gheorghiu et al 2010. Daily standards were prepared from these stock solutions with a composition of 5µM tryptophan, 0.250µM tyrosine and 5mg C/L.…”

Section: Methodsmentioning

confidence: 99%

Molecular Variability in Wastewater Organic Matter and Implications for Phosphorus Removal Across a Range of Treatment Technologies

Gray¹,

Gu²,

Houweling³

et al. 2011

proc water environ fed

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The results obtained by fluorescence characterization of dissolved organic matter in 44 wastewater samples are presented. The samples were collected from 12 wastewater treatment plants across the United States. Samples from several wastewater treatment plants are from various steps in the wastewater treatment process and allow us to observe the effects of these processes on dissolved organic matter and the implications for phosphorus removal. Overall, wastewater DOM is highly variable with variations due to source as well as within a treatment plant. In terms of non-reactive phosphorus (nRP) removal it was found that tryptophan (Trp) fluorescence correlated well with nRP concentrations. The overall correlation coefficient for a logarithmic relationship yielded r 2 =0.301, p<0.001 (for dissolved organic phosphorus (DOP) and Trp the values are r 2 =0.243, p=0.002). The steepest relationship between Trp and nRP was for plants with some aspect of biological treatment. The steepest data on a logarithmic scale have an r 2 of 0.842 (p=0.009) in terms of nRP and Trp correlation. Other biological treatment plants have a more moderate slope and a correlation coefficient r 2 =0.683, p<0.001 for nRP and Trp. These same treatment plants yield a correlation of r 2 =0.403, p=0.008 when DOP data is considered instead of nRP. For treatment plants with predominatly chemical treatment and low biological component, there is essentially no relationship between nRP and Trp (r 2 of 0.047 and a p value of 0.417).

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Section: Methodsmentioning

confidence: 99%

Molecular Variability in Wastewater Organic Matter and Implications for Phosphorus Removal Across a Range of Treatment Technologies

Gray¹,

Gu²,

Houweling³

et al. 2011

proc water environ fed

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“…Parallel Factor Analysis (PARAFAC) was then used to identify and quantify the component peaks in the EEMs, as implemented in the PLS Toolbox (Eigen vectors Research Inc, Mason, WA, USA) running on a Matlab™ platform. PARAFAC resolves this information into component spectra and relative component concentrations (Nadella et al, 2009; Gheorghiu et al, 2010; DePalma et al, 2011a; DePalma et al, 2011b). PARAFAC assigned the fluorescence on a percentage basis based on the a priori assumption that there were three components (humic substance-like, tyrosine-like, and tryptophan-like; for details, see Al-Reasi, Wood & Smith (2011), Al-Reasi, Smith & Wood (2012), Al-Reasi, Wood & Scott (2013), and Tait et al (2016).…”

Section: Methodsmentioning

confidence: 99%

“…These organisms are cultured commercially on the west coast of Vancouver Island, British Columbia, close to the sites where most of the NOMs were collected. The various NOMs were characterized by excitation-emission fluorescence (Nadella et al, 2009; Gheorghiu et al, 2010; DePalma et al, 2011a; DePalma et al, 2011b; Tait et al, 2016). The sites selected for collection ranged from inshore to offshore, and according to fluorescence analysis, the resulting NOM isolates ranged from terrigenous to autochthonous.…”

Section: Introductionmentioning

confidence: 99%

Physiological effects of five different marine natural organic matters (NOMs) and three different metals (Cu, Pb, Zn) on early life stages of the blue mussel (Mytilus galloprovincialis)

Nogueira

Bianchini

Smith

et al. 2017

PeerJ

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Metals are present in aquatic environments as a result of natural and anthropogenic inputs, and may induce toxicity to organisms. One of the main factors that influence this toxicity in fresh water is natural organic matter (NOM) but all NOMs are not the same in this regard. In sea water, possible protection by marine NOMs is not well understood. Thus, our study isolated marine NOMs by solid-phase extraction from five different sites and characterized them by excitation-emission fluorescence analysis—one inshore (terrigenous origin), two offshore (autochthonous origin), and two intermediate in composition (indicative of a mixed origin). The physiological effects of these five NOMS alone (at 8 mg/L), of three metals alone (copper, lead and zinc at 6 µg Cu/L, 20 µg Pb/L, and 25 µg Zn/L respectively), and of each metal in combination with each NOM, were evaluated in 48-h exposures of mussel larvae. Endpoints were whole body Ca2++Mg2+-ATPase activity, carbonic anhydrase activity and lipid peroxidation. By themselves, NOMs increased lipid peroxidation, Ca2++Mg2+-ATPase, and/or carbonic anhydrase activities (significant in seven of 15 NOM-endpoint combinations), whereas metals by themselves did not affect the first two endpoints, but Cu and Pb increased carbonic anhydrase activities. In combination, the effects of NOMs predominated, with the metal exerting no additional effect in 33 out of 45 combinations. While NOM effects varied amongst different isolates, there was no clear pattern with respect to optical or chemical properties. When NOMs were treated as a single source by data averaging, NOM had no effect on Ca2++Mg2+-ATPase activity but markedly stimulated carbonic anhydrase activity and lipid peroxidation, and there were no additional effects of any metal. Our results indicate that marine NOMs may have direct effects on this model marine organism, as well as protective effects against metal toxicity, and the quality of marine NOMs may be an important factor in these actions.

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“…Lorenzo et al, 2002;Arnold et al, 2010a), bivalves (e.g. Zamuda and Sunda, 1982;Arnold et al, 2006Arnold et al, , 2010aBrooks et al, 2007) and fish (Gheorghiu et al, 2010). DOC concentrations in natural marine and estuarine waters show large variations, as illustrated by the analysis of 72 water samples from coastal marine and estuarine sites in the USA and Canada, with DOC levels ranging between 0.8 and 21 mg C/L (DePalma et al, 2011b).…”

Section: Introductionmentioning

confidence: 98%

Mesocosm validation of the marine No Effect Concentration of dissolved copper derived from a species sensitivity distribution

Foekema¹,

Kaag²,

Kramer³

et al. 2015

Science of The Total Environment

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The Predicted No Effect Concentration (PNEC) for dissolved copper based on the species sensitivity distribution (SSD) of 24 marine single species tests was validated in marine mesocosms. To achieve this, the impact of actively maintained concentrations of dissolved copper on a marine benthic and planktonic community was studied in 18 outdoor 4.6m(3) mesocosms. Five treatment levels, ranging from 2.9 to 31μg dissolved Cu/L, were created in triplicate and maintained for 82days. Clear effects were observed on gastropod and bivalve molluscs, phytoplankton, zooplankton, sponges and sessile algae. The most sensitive biological endpoints; reproduction success of the bivalve Cerastoderma edule, copepod population development and periphyton growth were significantly affected at concentrations of 9.9μg Cu/L and higher. The No Observed Effect Concentration (NOEC) derived from this study was 5.7μg dissolved Cu/L. Taking into account the DOC concentration of the mesocosm water this NOEC is comparable to the PNEC derived from the SSD.

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Influence of natural organic matter (NOM) quality on Cu–gill binding in the rainbow trout (Oncorhynchus mykiss)

Cited by 27 publications

References 34 publications

Molecular Variability in Wastewater Organic Matter and Implications for Phosphorus Removal Across a Range of Treatment Technologies

Molecular Variability in Wastewater Organic Matter and Implications for Phosphorus Removal Across a Range of Treatment Technologies

Physiological effects of five different marine natural organic matters (NOMs) and three different metals (Cu, Pb, Zn) on early life stages of the blue mussel (Mytilus galloprovincialis)

Mesocosm validation of the marine No Effect Concentration of dissolved copper derived from a species sensitivity distribution

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