Daphnia magna and Ceriodaphnia dubia Have Similar Sensitivity in Standard Acute and Chronic Toxicity Tests

2021 ◽  
Author(s):  
Kristin A. Connors ◽  
Jessica L. Brill ◽  
Teresa Norberg‐King ◽  
Mace G. Barron ◽  
Greg Carr ◽  
...  
Keyword(s):  
Daphnia Magna ◽  
Chronic Toxicity ◽  
Ceriodaphnia Dubia ◽  
Toxicity Tests ◽  
Acute And Chronic Toxicity

scholarly journals Acute and Chronic Toxicity of Prothioconazole and its Metabolite Prothioconazole-Desthio To Daphnia Magna

2021 ◽  
Author(s):  
An Xuehua ◽  
Liu Xinju ◽  
Jiang Jinhua ◽  
Wang Feidi ◽  
Lv Lu ◽  
...  
Keyword(s):  
Daphnia Magna ◽  
Chronic Toxicity ◽  
Parent Compound ◽  
Biological Indicators ◽  
Toxicity Tests ◽  
Response Relationship ◽  
Dose Response Relationship ◽  
Toxicological Effects ◽  
Acute And Chronic Toxicity ◽  
Growth And Reproduction

Abstract Prothioconazole (PTC) is a broad-spectrum triazole fungicide. Current research has mainly focused on its efficacy and residues, with few studies on its toxicological effects. This study assessed the effects of PTC, and its metabolite prothioconazole-desthio (PTCd), on the inhibition of activity, growth, and reproduction of Daphnia magna using acute and chronic toxicity tests. Additionally, the dose-response relationship was established to determine sensitive biological indicators. The acute toxicity test shows that the 48 h EC50 of PTC and PTCd to D. magna were 2.82 and 5.19 mg/L, respectively. The chronic toxicity of PTC and PTCd to D. magna were 0.00860 and 0.132 mg/L, respectively, with the parent compound being 15.3 times more toxic than its metabolite. The acute to chronic toxicity ratio (ACR) was calculated using chronic toxicity data, with ACR values of 227 and 27.5 for PTC and PTCd, respectively. These results indicate that both PTC and PTCd affect the growth and reproduction of D. magna, and the toxicity of the parent compound is greater than that of its metabolite. In conclusion, the metabolites of this pesticide have sufficient toxicity to harm D. magna at relevant environmental concentrations, and their environmental risk should not be neglected.

Daphnia magna as a test animal in acute and chronic toxicity tests

Hydrobiologia ◽  
1978 ◽  
Vol 59 (2) ◽  
pp. 125-134 ◽  
Author(s):  
D. M. M. Adema
Keyword(s):  
Daphnia Magna ◽  
Chronic Toxicity ◽  
Toxicity Tests ◽  
Test Animal ◽  
Acute And Chronic Toxicity

The toxicity evaluation of wastewater from the chemical industry

1994 ◽  
Vol 30 (10) ◽  
pp. 107-111 ◽  
Author(s):  
T. Tišler ◽  
J. Zagorc-Koncan
Keyword(s):  
Daphnia Magna ◽  
Chemical Industry ◽  
Chronic Toxicity ◽  
Photobacterium Phosphoreum ◽  
Toxicity Tests ◽  
Toxic Substances ◽  
Toxicity Evaluation ◽  
Acute And Chronic Toxicity ◽  
Luminescent Bacteria ◽  
Test Organisms

The purpose of our investigation was the acute and chronic toxicity evaluation of the wastewater from the chemical industry, while the previous study had indicated high toxicity of the receiving streams far away from the point of wastewater inflow. The luminescent bacteria Photobacterium phosphoreum and invertebrate Daphnia magna were used for toxicity tests. The results of the toxicity tests showed that the investigated wastewater contained toxic substances, which caused acute and chronic toxicity to test organisms. Daphnia magna were more sensitive than Photobacterium phosphoreum. The acute toxicity of the wastewater on daphnids disappeared after dilution to 1:420, but the chronic toxicity did not disappear earlier than 1:1350.

scholarly journals Chronic toxicity of three neonicotinoid insecticides and their mixture on two daphniid species: Daphnia magna and Ceriodaphnia dubia

2021 ◽  
Author(s):  
Claire Duchet ◽  
Chelsea J. Mitchell ◽  
Jenifer K. McIntyre ◽  
John D. Stark
Keyword(s):  
Daphnia Magna ◽  
Chronic Toxicity ◽  
Aquatic Toxicity ◽  
Ceriodaphnia Dubia ◽  
Global Market ◽  
Water Soluble ◽  
Toxicity Tests ◽  
List Type ◽  
Neonicotinoid Insecticides ◽  
The Impact

AbstractNeonicotinoid insecticides represent nearly a quarter of the global market and are widely used in agriculture but also for lawn, garden care, and pest control. They are highly water-soluble, persistent in soil, and may enter the aquatic compartment via spray drift, runoff, or leaching, and contribute to downstream aquatic toxicity. Although insects appear to be the most sensitive group to neonicotinoids, other groups, such as crustaceans and birds, may also be affected. Furthermore, most studies focus on single-insecticide exposure and very little is known concerning the impact of neonicotinoid mixtures on aquatic invertebrates. The present study was designed to test potential toxicological effects of an environmentally relevant mixture of imidacloprid, clothianidin, and thiamethoxam on populations of Ceriodaphnia dubia and Daphnia magna under controlled conditions. Chronic toxicity tests were conducted in the laboratory, and survival and reproduction were measured for both species under exposure to nominal concentrations of imidacloprid (0.256 µg/L), clothianidin (3.11 µg/L), thiamethoxam (1.49 µg/L), and a mixture of the three compounds at the same concentrations of the individual compounds. The neonicotinoids did not affect the survival of C. dubia and D. magna founders. Reproduction of C. dubia was affected only by the mixture. All three individual insecticides as well as the mixture caused a significant reduction in the reproduction of D. magna. Our results highlight the complexity of pesticide toxicity and show that traditional toxicological approaches such as acute mortality studies, especially tests with single compounds, can underestimate negative impacts that occur in the environment.HighlightsNeonicotinoids are currently the most frequently used insecticides worldwide.An environmentally relevant mixture of three neonicotinoids was evaluated on two daphniid species.The mixture negatively affected the reproduction of C. dubia and Daphnia magna.Traditional toxicological approaches with single compounds may underestimate the effects occurring in the environment at low concentrations.

A biology-based dynamic approach for the reconciliation of acute and chronic toxicity tests: Application to Daphnia magna

Chemosphere ◽  
2011 ◽  
Vol 82 (11) ◽  
pp. 1547-1555 ◽  
Author(s):  
José-Manuel Zaldívar ◽  
Joaquín Baraibar
Keyword(s):  
Daphnia Magna ◽  
Chronic Toxicity ◽  
Toxicity Tests ◽  
Dynamic Approach ◽  
Acute And Chronic Toxicity

Biology-based dynamic approach for the reconciliation of acute and chronic toxicity tests: Application to daphnia magna

2010 ◽  
Vol 196 ◽  
pp. S125
Author(s):  
J.M. Zaldivar Comenges ◽  
J. Baraibar Fentanes ◽  
A. Worth
Keyword(s):  
Daphnia Magna ◽  
Chronic Toxicity ◽  
Toxicity Tests ◽  
Dynamic Approach ◽  
Acute And Chronic Toxicity

ACUTE AND CHRONIC TOXICITY OF IMIDAZOLIUM-BASED IONIC LIQUIDS ON DAPHNIA MAGNA

2005 ◽  
Vol 24 (1) ◽  
pp. 87 ◽  
Author(s):  
Randall J. Bernot ◽  
Michael A. Brueseke ◽  
Michelle A. Evans-White ◽  
Gary A. Lamberti
Keyword(s):  
Ionic Liquids ◽  
Daphnia Magna ◽  
Chronic Toxicity ◽  
Acute And Chronic Toxicity
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