Assessing sediment contamination using six toxicity assays

Burton, Allen G.; Baudo, Renato; Beltrami, Monica; Rowland, Carolyn D.

doi:10.4081/jlimnol.2001.1.263

Cited by 41 publications

(22 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…1992) to 997 mg.kg -1 in 1996 (and the maximum values increased from 1978 to 2440 mg.kg -1 ) . Several toxicity tests ran in the years following liming (1992)(1993)(1994)(1995)(1996)(1997)(1998) confirmed that the sediments were contaminated enough to induce either a direct short term mortality or sublethal effects on crustacean species (Rossi and Beltrami, 1998;Beltrami et al, 1999;Barbero et al, 2001;Baudo et al, 2001b;Burton et al, 2001). This likely hindered the re-colonization by most benthic taxa resulting in a benthic community that was both poorly structured and scanty and with a small number of taxa, and whole groups of organisms, such as Mollusca, missing (Tesauro et al, 1995;Baudo et al, 2001a;Nocentini et al, 2001;Bielli and Tesauro, 2001).…”

Section: Study Areamentioning

confidence: 99%

When and how? Freshwater mussel recolonization in Lake Orta

et al. 2016

View full text Add to dashboard Cite

Thanks to a video posted on a social network, live mussels of Unio elongatulus, have been recorded from Lake Orta (Italy) over one century after the last (and only) report. With its long and well documented history of pollution, Lake Orta offers the opportunity to document the post-extirpation recovery of freshwater unionid mussels. This case evidences that recovery/recolonization is possible despite a high devastation in the past, and permits to evaluate how fast recolonization may occur, in which way, and in what conditions. The answer to the how fast was sought by estimating the age of the larger and seemingly older individuals of the population. To address the in which way we compared the haplotypes of Lake Orta specimens of Unio elongatulus (the only species present) with those of surrounding populations. We concluded that, since Lake Orta lacks a direct connection with the putative source populations, colonizing mussels were almost certainly transported by fish carrying glochidia that were used for lake restocking after liming. Data from the long-term monitoring of water chemistry and sediments have allowed defining what conditions proved to be suitable for survival making possible the start of mussels recovery. But not only water and sediment quality matters for mussels recovery, which was delayed by nearly ten years after the reappearance of fish. This delay reflects the need of the whole trophic chain to be reestablished to allow the survival of the suitable and healthy host-fish populations necessary for mussels reproduction.

show abstract

Section: Study Areamentioning

confidence: 99%

When and how? Freshwater mussel recolonization in Lake Orta

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Furthermore, according to previous studies, toxicity may exist for some species but not others (Burton et al 2001). Under our experimental conditions, the interaction between Cd and As was synergistic to the growth of both roots and shoots.…”

Section: Phytotoxic Effects Of Combined Metalsmentioning

confidence: 99%

Individual and combined phytotoxic effects of cadmium, lead and arsenic on soybean in Phaeozem

Luan¹,

Cao²,

Yan³

2008

PLANT SOIL ENVIRON

View full text Add to dashboard Cite

Acute laboratory toxicity tests were carried out to assess the individual and combined toxic effects of metals including cadmium (Cd), lead (Pb) and the metalloid arsenic (As) in Phaeozem on the seed germination and seedling growth of soybean, Glycine max. Seeds were exposed to varied concentrations of Cd, Pb and As individually and in mixtures including Cd + Pb, Cd + As, Pb + As and Cd + Pb + As. The sum of toxic units (TU) for medium effective concentration of the mixture (EC 50mix ) was calculated based on the dose (TU-based)-response relationship using the Trimmed Spearman-Karber method. Binary metal combinations of Cd + Pb, Cd + As and Pb + As produced additive, synergistic and antagonistic effects, respectively, on shoot growth and synergistic, synergistic and antagonistic effects on root growth. Ternary combination of Cd + Pb + As had a synergistic effect on shoot growth and an additive effect on root growth. Bioaccumulation of metals was observed in soybean and inhibited or enhanced bioaccumulations of individual metals were found in mixtures due to different combinations of metals.

show abstract

“…Microtox® and Daphnia IQ toxicity tests are rapid screening assays that have shown good prediction with more standard acute toxicity bioassays (Hayes et al 1993;Toussaint et al 1995;Burton et al 2001). Evaluation of porewater toxicity can be informative because sediments integrate contaminant fluctuations over time (Nipper et al 2003).…”

Section: Bioassays (Microtox® and Daphnia Iq Tests)mentioning

confidence: 99%

Survey of Potential Hanford Site Contaminants in the Upper Sediment for the Reservoirs at McNary, John Day, The Dalles, and Bonneville Dams, 2003

Patton¹,

Priddy²,

Yokel³

et al. 2005

View full text Add to dashboard Cite

Samples were analyzed for radionuclides, chemicals, and physical parameters. In addition, sediment porewater (i.e., the water associated with the sediments) bioassays were conducted. This report presents the results from this multi-agency study.Sediment was readily available at the McNary, John Day, and The Dalles dams; however, there was only limited sediment available at Bonneville Dam. Beach sediment was limited in the sections of the lower reservoirs adjacent to the sampling locations with sediment only available at McNary Dam and at the mouth of Eagle Creek near Bonneville Dam. In general, the river sediment samples were composed primarily of very fine sand, silt, and clay, whereas the beach sediment was composed primarily of medium and coarse sand.

show abstract

Assessing sediment contamination using six toxicity assays

Abstract: ABSTRACT

Cited by 41 publications

References 12 publications

When and how? Freshwater mussel recolonization in Lake Orta

When and how? Freshwater mussel recolonization in Lake Orta

Individual and combined phytotoxic effects of cadmium, lead and arsenic on soybean in Phaeozem

Survey of Potential Hanford Site Contaminants in the Upper Sediment for the Reservoirs at McNary, John Day, The Dalles, and Bonneville Dams, 2003

Contact Info

Product

Resources

About