Acute toxicity toDaphnia magna of effluents containing Cd, Zn, and a mixture Cd-Zn, after metal removal byChlorella vulgaris

Caizares-Villanueva, R. O.; Martnez-Jernimo, F.; Espinosa-Chvez, F.

doi:10.1002/1522-7278(2000)15:3<160::aid-tox2>3.0.co;2-7

Cited by 21 publications

(6 citation statements)

References 23 publications

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“…A similar antagonistic effect of Cu and Zn was observed in L. vannamei and Daphnia magna by Frías-Espericueta et al (2003) and by Cañizares-Villanueva et al (2000), although Negilski et al (1981) and Vanegas et al (1997) found a synergistic effect in the crustaceans Callianassa australiensis and Litopenaeus setiferus exposed to a mixture Cd-Zn, which could be explained by genetic differences or by different chemical characteristics of the respective aquatic environments.…”

Section: Discussionmentioning

confidence: 62%

Toxicity of metal mixtures to the Pacific white shrimp Litopenaeus vannamei postlarvae

Frías-Espericueta

Voltolina²,

Osuna-López

et al. 2009

Marine Environmental Research

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According to the literature, the safe level of a toxic substance for any given organism may be calculated from its median lethal concentration multiplied by a suitable application factor (AF: usually 0.1 and 0.01). The medial lethal concentrations for Litopenaeus vannamei postlarvae exposed to the mixtures in equitoxic proportions of Cd-Hg, Hg-Zn and Hg-Pb were close to one order of magnitude lower than the values calculated from individual toxicity tests, indicating a synergistic effect, while the mixture Cd-Zn showed an antagonistic effect. Exposure to the mixture of Cu, Fe, Mn, Zn, Cd, Hg and Pb caused 63.3% and 100% mortality after 21 and 13 days for 0.05 and 0.1 AF, showing that environmental safe concentrations of toxicants should not be calculated from individual toxicity tests.

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Section: Discussionmentioning

confidence: 62%

Toxicity of metal mixtures to the Pacific white shrimp Litopenaeus vannamei postlarvae

Frías-Espericueta

Voltolina²,

Osuna-López

et al. 2009

Marine Environmental Research

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“…However, the absence of this species in natural environments makes it an inappropriate bioindicator of natural and anthropogenic processes (Kammenga and Risken, 1996). Comparing with other invertebrate taxa, A. avenae and C. persegnis also seem to be more tolerant to the toxicity of either Cu or Zn than the water flea Daphnia magna (48 h LC50 of 4.13-11.48 mg Zn/L) (Cañizares-Villanueva et al, 2000), the pink hydra Hydra vulgaris (96 h LC50 of 2.3-7.4 mg Zn/L and 0.032 mg Cu/L) (Karntanut and Pascoe, 2000;Holdway et al 2001), the earthworm Enchytraeus bucholzi (48 h LC50 of 0.43 mg Cu/L) (Willuhn et al, 1996), and the sandy gastropod Nassarius festivus (96 h LC50 of 0.36 mg Cu/L and 1.76 mg Zn/L) (Cheung et al, 2002). This higher resistance of soil nematodes to heavy metals can explain the high capability of recovery after perturbation of nematode community (Bengtsson, 2002).…”

Section: Discussionmentioning

confidence: 89%

Ecotoxicological Assessment of the Impact of Residual Heavy Metals on Soil Nematodes in the Guadiamar River Basin (Southern Spain)

Sánchez‐Moreno

Camargo

Navas

2006

Environ Monit Assess

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On 25 April 1998, as a consequence of the breaking of a dam containing the tailings of a pyrite mine, a land strip of approximately 43 km in length was covered with a layer of black sludge, containing high levels of heavy metals, along the Guadiamar River Basin (southern Spain). In this investigation we carried out an ecotoxicological assessment (field and laboratory studies) of the impact of residual heavy metals (Cu, Pb, Zn, Ni) on soil nematodes in the impacted riparian zone, two years after the huge mine spillage. Concentrations of residual heavy metals were significantly (P<0.05) higher at the impacted sampling sectors (S-2, S-3, S-4, S-5) than at the unpolluted (reference) sampling sector (S-1). Nickel however exhibited the lowest increases at the impacted sectors. As a consequence, correlation coefficients between concentrations of heavy metals and values of ecological indices were not significant for Ni. In contrast, copper, lead and zinc exhibited significant (P<0.05) negative correlation coefficients with ecological indices, particularly with diversity indices (including the~number of taxa). In addition, the toxicity of Cu and Pb to nematode test species (Aphelenchus avenae and Cephalobus persegnis) during short-term toxicity bioassays was much higher than the toxicity of Zn and Ni. We conclude that residual heavy metals were still influencing adversely the community of soil nematodes in the impacted riparian zone of the Guadiamar River Basin. Cu, Pb and, to a lesser extent, Zn would be major responsible for the observed impact.

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“…These results are consistent with previous reports of a protective effect of Zn against Cd toxicity. Less-than-additive toxicity of Cd-Zn mixtures to D. magna was reported by Attar and Maly [25] (based on a concentration-addition-type model in 3 separate toxicity tests with Cd-Zn mixtures) and by Cañizares-Villanueva et al [26] (based on S toxic unit values for 50% mortality in 2 separate toxicity tests with Cd-Zn mixtures). However, Shaw et al [27] did not observe statistically significant deviations from additivity in D. magna exposed to Cd-Zn mixtures (using an additive-effects model); and Wicklund Glynn et al [28] reported additive chronic toxicity in juvenile minnows (Phoxinus phoxinus) exposed to a Cd-Zn mixture.…”

Section: Cd-zn Binary Mixturesmentioning

confidence: 89%

Acute toxicity of binary and ternary mixtures of Cd, Cu, and Zn to Daphnia magna

Meyer

Ranville

Pontasch

et al. 2015

Enviro Toxic and Chemistry

115

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Standard static-exposure acute lethality tests were conducted with Daphnia magna neonates exposed to binary or ternary mixtures of Cd, Cu, and Zn in moderately hard reconstituted water that contained 3 mg dissolved organic carbon/L added as Suwannee River fulvic acid. These experiments were conducted to test for additive toxicity (i.e., the response to the mixture can be predicted by combining the responses obtained in single-metal toxicity tests) or nonadditive toxicity (i.e., the response is less than or greater than additive). Based on total metal concentrations (>90% dissolved) the toxicity of the tested metal mixtures could be categorized into all 3 possible additivity categories: less-than-additive toxicity (e.g., Cd-Zn and Cd-Cu-Zn mixtures and Cd-Cu mixtures when Cu was titrated into Cd-containing waters), additive toxicity (e.g., some Cu-Zn mixtures), or more-than-additive toxicity (some Cu-Zn mixtures and Cd-Cu mixtures when Cd was titrated into Cu-containing waters). Exposing the organisms to a range of sublethal to supralethal concentrations of the titrated metal was especially helpful in identifying nonadditive interactions. Geochemical processes (e.g., metal-metal competition for binding to dissolved organic matter and/or the biotic ligand, and possibly supersaturation of exposure waters with the metals in some high-concentration exposures) can explain much of the observed metal-metal interactions. Therefore, bioavailability models that incorporate those geochemical (and possibly some physiological) processes might be able to predict metal mixture toxicity accurately.

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Acute toxicity toDaphnia magna of effluents containing Cd, Zn, and a mixture Cd-Zn, after metal removal byChlorella vulgaris

Cited by 21 publications

References 23 publications

Toxicity of metal mixtures to the Pacific white shrimp Litopenaeus vannamei postlarvae

Toxicity of metal mixtures to the Pacific white shrimp Litopenaeus vannamei postlarvae

Ecotoxicological Assessment of the Impact of Residual Heavy Metals on Soil Nematodes in the Guadiamar River Basin (Southern Spain)

Acute toxicity of binary and ternary mixtures of Cd, Cu, and Zn to Daphnia magna

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