Geochemical factors complicating the use of aufwuchs to monitor bioaccumulation of arsenic, cadmium, chromium, copper and zinc

Newman, Michael C.; Alberts, James J.; Greenhut, Victor A.

doi:10.1016/0043-1354(85)90352-5

Cited by 53 publications

(12 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the significant correlation of metal concentrations in aufwuchs with those in fine-grained sediments is consistent with the observation that abiotic material can contribute a majority of the metal content measured in aufwuchs [12]. The biotic components of aufwuchs, however, may also accumulate divalent metals, such as Co and Cu, through passive adsorption [35,36], active uptake [37], or surface precipitation caused by photosynthetically induced increases in pH [8].…”

Section: Metals Exposure and Accumulationsupporting

confidence: 67%

Benthic invertebrate metals exposure, accumulation, and community‐level effects downstream from a hard‐rock mine site

Beltman¹,

Clements²,

Lipton³

et al. 1999

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Abstract-This study quantitatively evaluated the relationships among As, Co, and Cu concentrations in exposure media (surface water, sediment, and aufwuchs), As, Co, and Cu concentrations in aquatic macroinvertebrates, and invertebrate community structure in a mine-affected stream. Concentrations of As, Co, and Cu were significantly elevated in both exposure media and invertebrate tissue downstream from the mine. Copper in invertebrates was significantly correlated only with Cu in aufwuchs, and Co in invertebrates was significantly correlated only with dissolved Co in water, suggesting different mechanisms of invertebrate accumulation for these two metals. The invertebrate community was severely affected downstream from the mine, with a loss of metalssensitive species and reductions in both total biomass and number of species. Total abundance was not affected. Principal components analysis was performed on the invertebrate community data to develop a simplified description of community response to mine inputs. Based on this index, metal concentrations in invertebrates were poor predictors of community structure. Copper concentrations in water, combined with an estimate of invertebrate drift from clean tributaries, were statistically significant predictors of community structure.

show abstract

Section: Metals Exposure and Accumulationsupporting

confidence: 67%

Benthic invertebrate metals exposure, accumulation, and community‐level effects downstream from a hard‐rock mine site

Beltman¹,

Clements²,

Lipton³

et al. 1999

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

show abstract

“…Various organic compounds produced by periphyton communities, such as mucus and biomass, may prevent the diffusion of Cu and Zn to deeper layers of the biofilm, as has been demonstrated by studies based on autoradiography (Rose and Cushing 1970). In fact the inhibitory effects of a toxicant may be influenced by the sorptive capacities of biofilms (Newman et al 1985).…”

Section: Discussionmentioning

confidence: 97%

The effects of copper and zinc on biomass and taxonomic composition of algal periphyton communities from the River Gharasou, Western Iran

Atazadeh¹,

Kelly²,

Sharifi

et al. 2009

Oceanological and Hydrobiological Studies

View full text Add to dashboard Cite

Indoor artificial streams were used to evaluate the short-term (24 day) influence of copper and zinc, individually and in combination, on the biomass and taxonomic composition of algal periphyton communities. The effects of Cu (50 µg l -1 ) and Zn (1 mg l -1 ) were assessed using measurements of biomass, ash-free dry mass (AFDM), chlorophyll-a concentration, taxonomic composition and biovolume. In artificial streams with Cu, Zn and Cu+Zn, there were significant (p < 0.05) reductions of chlorophyll-a concentrations, dry mass and AFDM, and also changes in * Corresponding author: islam.atazadeh@gmail.com the species diversity and relative abundances of periphyton species. In artificial streams containing both Cu and Zn the taxonomic composition shifted from a Cyanophyceaen dominated community to one consisting mainly of Chlorophyceae, whilst the relative contribution of Bacillariophyceae was not significantly altered.

show abstract

“…and other pleurocerid snails feed primarily on periphyton, including algal cells (diatoms) and associated bacteria and detritus (Brown et al 2008). Due to the structural similarity between phosphate and arsenate, algal cells (including periphytic algae) actively take up As (Kuwabara et al 1990;Levy et al 2005) and inorganic matter incorporated in periphyton mats sorbs As (Newman et al 1985). These processes result in elevated concentrations of As in periphyton relative to overlying water (Farag et al 2007;Kuwabara et al 1990).…”

Section: Tissuementioning

confidence: 97%

Using watershed characteristics, sediment, and tissue of resident mollusks to identify potential sources of trace elements to streams in a complex agricultural landscape

Ciparis

Schreiber

Voshell

2011

Environ Monit Assess

View full text Add to dashboard Cite

Trace elements used in animal feed additives can be introduced to aquatic environments through application of manures from animal feeding operations to agricultural land as fertilizer. The use of poultry feed additives containing arsenic (As) is of particular concern in the Shenandoah River watershed (Virginia, USA), an agricultural landscape with a high density of poultry operations. This study investigated the relationship between watershed characteristics of Shenandoah River tributaries and trace element concentrations in streambed sediment and tissue of resident mollusks, including: Asian clams (Corbicula fluminea), which are commonly used biomonitors, and pleurocerid snails (Leptoxis carinata), which are generally understudied. Results failed to support the primary hypothesis of a predictive relationship between watershed densities of poultry operations and As concentrations in sediment and mollusk tissue. However, there were statistical relationships between land use in tributary watersheds and other trace elements in sediment (Cu, Mn, Pb, Zn) and tissue (Cd, Hg, Pb). Principal components analysis of the sediment data suggested a possible geologic source of As at some sites. Tissue concentrations of As were significantly higher in snails than in clams, but clams accumulated higher concentrations of other trace elements (Cd, Cr, Hg, Pb, Se). Snails may be useful biomonitors of environmental As, but appear to be less suitable than clams for studies of landscape sources of other trace elements.

show abstract

Geochemical factors complicating the use of aufwuchs to monitor bioaccumulation of arsenic, cadmium, chromium, copper and zinc

Cited by 53 publications

References 13 publications

Benthic invertebrate metals exposure, accumulation, and community‐level effects downstream from a hard‐rock mine site

Benthic invertebrate metals exposure, accumulation, and community‐level effects downstream from a hard‐rock mine site

The effects of copper and zinc on biomass and taxonomic composition of algal periphyton communities from the River Gharasou, Western Iran

Using watershed characteristics, sediment, and tissue of resident mollusks to identify potential sources of trace elements to streams in a complex agricultural landscape

Contact Info

Product

Resources

About