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Acute and chronic toxicity of copper to the euryhaline rotifer, Brachionus plicatilis ("L" strain).
Arch Environ Contam Toxicol. 2011 Feb; 60(2):250-60.AE

Abstract

This article presents data from original research, intended for the use in the development of copper (Cu) criteria for the protection of estuarine and marine organisms and their uses in the United States. Two 48-h static-acute toxicity tests-one with and one without added food-and a 96-h static multigeneration life-cycle test (P1-F2 generations) were performed concurrently using the euryhaline rotifer Brachionus plicatilis ("L" strain) to develop a Cu acute-to-chronic ratio (ACR) for this species. Tests were performed at 15 g/L salinity, at 25°C, and the exposure concentrations of dissolved Cu were verified. Supplemental chemical analyses were performed and reported for the development of a Cu-saltwater biotic ligand model (BLM). Supplemental analyses included alkalinity, calcium, chloride, dissolved organic carbon (DOC), hardness, magnesium, potassium, sodium, and temperature. The acute toxicity test measurement end points were the dissolved Cu median lethal concentration (LC₅₀) values based on rotifer survival. The chronic measurement end points were the dissolved Cu no-observed-effect concentration (NOEC), lowest-observed-effect concentration (LOEC), EC₂₅, EC₂₀, and EC₁₀ based on the intrinsic rate of rotifer population increase (r). The 48-h LC₅₀(Fed), 48-h LC₅₀(Unfed), 96-h NOEC, 96-h LOEC, EC₂₅, EC₂₀, and EC₁₀ were 20.8, 13.4, 6.1, 10.3, 11.7, 10.9, and 8.8 μg Cu/L, respectively. The ACRs were calculated as ratios of each 48-h LC₅₀ value [fed and unfed) and each of the 96-h chronic values (ChV; geometric mean of NOEC and LOEC)], EC₁₀, EC₂₀, and EC₂₅. The ACRs ranged from 1.15 to 2.63.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Arnold WR
Aquatic Ecological Risk Assessment LLC, Tyler, TX 75703, USA. wrayarnold@gmail.com
Diamond RL
No affiliation info available
Smith DS
No affiliation info available

MeSH

AnimalsCopperEuropean UnionLethal Dose 50LigandsModels, BiologicalNo-Observed-Adverse-Effect LevelRotiferaSeawaterToxicity Tests, AcuteToxicity Tests, ChronicUnited StatesWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20614216

Citation

Arnold, W R., et al. "Acute and Chronic Toxicity of Copper to the Euryhaline Rotifer, Brachionus Plicatilis ("L" Strain)." Archives of Environmental Contamination and Toxicology, vol. 60, no. 2, 2011, pp. 250-60.
Arnold WR, Diamond RL, Smith DS. Acute and chronic toxicity of copper to the euryhaline rotifer, Brachionus plicatilis ("L" strain). Arch Environ Contam Toxicol. 2011;60(2):250-60.
Arnold, W. R., Diamond, R. L., & Smith, D. S. (2011). Acute and chronic toxicity of copper to the euryhaline rotifer, Brachionus plicatilis ("L" strain). Archives of Environmental Contamination and Toxicology, 60(2), 250-60. https://doi.org/10.1007/s00244-010-9556-8
Arnold WR, Diamond RL, Smith DS. Acute and Chronic Toxicity of Copper to the Euryhaline Rotifer, Brachionus Plicatilis ("L" Strain). Arch Environ Contam Toxicol. 2011;60(2):250-60. PubMed PMID: 20614216.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Acute and chronic toxicity of copper to the euryhaline rotifer, Brachionus plicatilis ("L" strain). AU - Arnold,W R, AU - Diamond,R L, AU - Smith,D S, Y1 - 2010/07/08/ PY - 2009/12/14/received PY - 2010/05/31/accepted PY - 2010/7/9/entrez PY - 2010/7/9/pubmed PY - 2011/5/3/medline SP - 250 EP - 60 JF - Archives of environmental contamination and toxicology JO - Arch Environ Contam Toxicol VL - 60 IS - 2 N2 - This article presents data from original research, intended for the use in the development of copper (Cu) criteria for the protection of estuarine and marine organisms and their uses in the United States. Two 48-h static-acute toxicity tests-one with and one without added food-and a 96-h static multigeneration life-cycle test (P1-F2 generations) were performed concurrently using the euryhaline rotifer Brachionus plicatilis ("L" strain) to develop a Cu acute-to-chronic ratio (ACR) for this species. Tests were performed at 15 g/L salinity, at 25°C, and the exposure concentrations of dissolved Cu were verified. Supplemental chemical analyses were performed and reported for the development of a Cu-saltwater biotic ligand model (BLM). Supplemental analyses included alkalinity, calcium, chloride, dissolved organic carbon (DOC), hardness, magnesium, potassium, sodium, and temperature. The acute toxicity test measurement end points were the dissolved Cu median lethal concentration (LC₅₀) values based on rotifer survival. The chronic measurement end points were the dissolved Cu no-observed-effect concentration (NOEC), lowest-observed-effect concentration (LOEC), EC₂₅, EC₂₀, and EC₁₀ based on the intrinsic rate of rotifer population increase (r). The 48-h LC₅₀(Fed), 48-h LC₅₀(Unfed), 96-h NOEC, 96-h LOEC, EC₂₅, EC₂₀, and EC₁₀ were 20.8, 13.4, 6.1, 10.3, 11.7, 10.9, and 8.8 μg Cu/L, respectively. The ACRs were calculated as ratios of each 48-h LC₅₀ value [fed and unfed) and each of the 96-h chronic values (ChV; geometric mean of NOEC and LOEC)], EC₁₀, EC₂₀, and EC₂₅. The ACRs ranged from 1.15 to 2.63. SN - 1432-0703 UR - https://www.unboundmedicine.com/medline/citation/20614216/Acute_and_chronic_toxicity_of_copper_to_the_euryhaline_rotifer_Brachionus_plicatilis__"L"_strain__ L2 - https://dx.doi.org/10.1007/s00244-010-9556-8 DB - PRIME DP - Unbound Medicine ER -