Abstract
Toxicity tests were conducted with the marine copepod Acartia tonsa to assess the effects of dietary metal exposure. The diatom Thalassiosira pseudonana was cultured with Ag, Zn, Cu, or Ni and used as diets for adult A. tonsa over a 7-d exposure, and copepod survival and reproduction were measured throughout the exposure period. For all metals, reproduction was the most sensitive endpoint, with 20% effect concentrations (EC20s) corresponding to exposures of T. pseudonana to 0.64, 0.3, 1.2, and 2.4 μg/L for Ag, Zn, Cu, and Ni, respectively. The corresponding metal concentrations in the algae added to copepod test solutions (EC20s) were 5.44, 0.55, 22.3, and 15.3 μg/g for Ag, Zn, Cu, and Ni, respectively. None of the applied metal concentrations influenced algal growth. The results of this study have potential implications for water quality criteria considering that the estimated EC20S fall below the current criteria of 3, 86, 3, and 8.3 μg/L for Ag, Zn, Cu, and Ni, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 2063-2068 |
| Number of pages | 6 |
| Journal | Environmental Science and Technology |
| Volume | 40 |
| Issue number | 6 |
| DOIs | |
| State | Published - Mar 15 2006 |
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ASJC Scopus subject areas
- Environmental Engineering
- Environmental Science(all)
- Environmental Chemistry
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Toxicity of silver, zinc, copper, and nickel to the copepod Acartia tonsa exposed via a phytoplankton diet. / Bielmyer, Gretchen K.; Grosell, Martin; Brix, Kevin V.
In: Environmental Science and Technology, Vol. 40, No. 6, 15.03.2006, p. 2063-2068.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Toxicity of silver, zinc, copper, and nickel to the copepod Acartia tonsa exposed via a phytoplankton diet
AU - Bielmyer, Gretchen K.
AU - Grosell, Martin
AU - Brix, Kevin V.
PY - 2006/3/15
Y1 - 2006/3/15
N2 - Toxicity tests were conducted with the marine copepod Acartia tonsa to assess the effects of dietary metal exposure. The diatom Thalassiosira pseudonana was cultured with Ag, Zn, Cu, or Ni and used as diets for adult A. tonsa over a 7-d exposure, and copepod survival and reproduction were measured throughout the exposure period. For all metals, reproduction was the most sensitive endpoint, with 20% effect concentrations (EC20s) corresponding to exposures of T. pseudonana to 0.64, 0.3, 1.2, and 2.4 μg/L for Ag, Zn, Cu, and Ni, respectively. The corresponding metal concentrations in the algae added to copepod test solutions (EC20s) were 5.44, 0.55, 22.3, and 15.3 μg/g for Ag, Zn, Cu, and Ni, respectively. None of the applied metal concentrations influenced algal growth. The results of this study have potential implications for water quality criteria considering that the estimated EC20S fall below the current criteria of 3, 86, 3, and 8.3 μg/L for Ag, Zn, Cu, and Ni, respectively.
AB - Toxicity tests were conducted with the marine copepod Acartia tonsa to assess the effects of dietary metal exposure. The diatom Thalassiosira pseudonana was cultured with Ag, Zn, Cu, or Ni and used as diets for adult A. tonsa over a 7-d exposure, and copepod survival and reproduction were measured throughout the exposure period. For all metals, reproduction was the most sensitive endpoint, with 20% effect concentrations (EC20s) corresponding to exposures of T. pseudonana to 0.64, 0.3, 1.2, and 2.4 μg/L for Ag, Zn, Cu, and Ni, respectively. The corresponding metal concentrations in the algae added to copepod test solutions (EC20s) were 5.44, 0.55, 22.3, and 15.3 μg/g for Ag, Zn, Cu, and Ni, respectively. None of the applied metal concentrations influenced algal growth. The results of this study have potential implications for water quality criteria considering that the estimated EC20S fall below the current criteria of 3, 86, 3, and 8.3 μg/L for Ag, Zn, Cu, and Ni, respectively.
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U2 - 10.1021/es051589a
DO - 10.1021/es051589a
M3 - Article
C2 - 16570637
AN - SCOPUS:33645218542
VL - 40
SP - 2063
EP - 2068
JO - Environmental Science & Technology
JF - Environmental Science & Technology
SN - 0013-936X
IS - 6
ER -