New is not always better: Toxicity of novel copper based algaecides to Daphnia magna
In this study, the effects of traditional copper (CuSO4.5H2O) and novel copper algaecides (Captain XTR, SeClear and Lake Guard Blue) were tested on Daphnia magna under acute (48 h) and chronic (21 d) exposure scenarios. The EC50 values calculated in the acute tests were between 0.5 and 0.6 mg Cu L−1...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651322006571 |
| _version_ | 1828782487802740736 |
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| author | Li Kang Maíra Mucci Jingyi Fang Miquel Lürling |
| author_facet | Li Kang Maíra Mucci Jingyi Fang Miquel Lürling |
| author_sort | Li Kang |
| collection | DOAJ |
| description | In this study, the effects of traditional copper (CuSO4.5H2O) and novel copper algaecides (Captain XTR, SeClear and Lake Guard Blue) were tested on Daphnia magna under acute (48 h) and chronic (21 d) exposure scenarios. The EC50 values calculated in the acute tests were between 0.5 and 0.6 mg Cu L−1 for all four compounds. Lake Guard Blue and CuSO4.5 H2O were more toxic than SeClear and Captain XTR. During the chronic test, the effects of SeClear (EC50: 0.274 mg Cu L−1) on reproduction and body length were larger than the effects of the other three copper-based algaecides (EC50: 0.436 mg Cu L−1 for CuSO4.5 H2O, 0.498 mg Cu L−1 for Captain XTR, and 0.295 mg Cu L−1 for Lake Guard Blue). Captain XTR had the strongest negative effect on body weight, whereas body weight was affected the least by CuSO4.5 H2O. The four copper compounds affected the age at first brood significantly, which was delayed by 1.8, 2.0, 2.3 and 3.2 days for Captain XTR, CuSO4.5H2O, Lake Guard Blue and SeClear, respectively. Intrinsic rate of population increase was lowest (0.145 d−1) at the highest dosage in the SeClear treatments. Chemical equilibrium modelling revealed that most copper was chelated with EDTA present in the artificial medium used. These combined results indicate that the toxicity of the novel copper algaecide SeClear to D. magna is greater than that of traditional copper algaecide. Prior to each Cu application, tests on the effects of Cu compounds on the organisms being targeted should be done, taking into consideration the water chemistry. |
| first_indexed | 2024-12-11T17:50:23Z |
| format | Article |
| id | doaj.art-ccd72dfd87354159b8ba86f4e6acb6b0 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-11T17:50:23Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-ccd72dfd87354159b8ba86f4e6acb6b02022-12-22T00:56:15ZengElsevierEcotoxicology and Environmental Safety0147-65132022-08-01241113817New is not always better: Toxicity of novel copper based algaecides to Daphnia magnaLi Kang0Maíra Mucci1Jingyi Fang2Miquel Lürling3Corresponding author.; Aquatic Ecology & Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, the NetherlandsAquatic Ecology & Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, the NetherlandsAquatic Ecology & Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, the NetherlandsAquatic Ecology & Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, the NetherlandsIn this study, the effects of traditional copper (CuSO4.5H2O) and novel copper algaecides (Captain XTR, SeClear and Lake Guard Blue) were tested on Daphnia magna under acute (48 h) and chronic (21 d) exposure scenarios. The EC50 values calculated in the acute tests were between 0.5 and 0.6 mg Cu L−1 for all four compounds. Lake Guard Blue and CuSO4.5 H2O were more toxic than SeClear and Captain XTR. During the chronic test, the effects of SeClear (EC50: 0.274 mg Cu L−1) on reproduction and body length were larger than the effects of the other three copper-based algaecides (EC50: 0.436 mg Cu L−1 for CuSO4.5 H2O, 0.498 mg Cu L−1 for Captain XTR, and 0.295 mg Cu L−1 for Lake Guard Blue). Captain XTR had the strongest negative effect on body weight, whereas body weight was affected the least by CuSO4.5 H2O. The four copper compounds affected the age at first brood significantly, which was delayed by 1.8, 2.0, 2.3 and 3.2 days for Captain XTR, CuSO4.5H2O, Lake Guard Blue and SeClear, respectively. Intrinsic rate of population increase was lowest (0.145 d−1) at the highest dosage in the SeClear treatments. Chemical equilibrium modelling revealed that most copper was chelated with EDTA present in the artificial medium used. These combined results indicate that the toxicity of the novel copper algaecide SeClear to D. magna is greater than that of traditional copper algaecide. Prior to each Cu application, tests on the effects of Cu compounds on the organisms being targeted should be done, taking into consideration the water chemistry.http://www.sciencedirect.com/science/article/pii/S0147651322006571Copper-based algaecidesDaphnia magnaIn-lake measuresLake restorationEutrophication |
| spellingShingle | Li Kang Maíra Mucci Jingyi Fang Miquel Lürling New is not always better: Toxicity of novel copper based algaecides to Daphnia magna Ecotoxicology and Environmental Safety Copper-based algaecides Daphnia magna In-lake measures Lake restoration Eutrophication |
| title | New is not always better: Toxicity of novel copper based algaecides to Daphnia magna |
| title_full | New is not always better: Toxicity of novel copper based algaecides to Daphnia magna |
| title_fullStr | New is not always better: Toxicity of novel copper based algaecides to Daphnia magna |
| title_full_unstemmed | New is not always better: Toxicity of novel copper based algaecides to Daphnia magna |
| title_short | New is not always better: Toxicity of novel copper based algaecides to Daphnia magna |
| title_sort | new is not always better toxicity of novel copper based algaecides to daphnia magna |
| topic | Copper-based algaecides Daphnia magna In-lake measures Lake restoration Eutrophication |
| url | http://www.sciencedirect.com/science/article/pii/S0147651322006571 |
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