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The effects of salinity, pH, and dissolved organic matter on acute copper toxicity to the rotifer, Brachionus plicatilis ("L" strain).
Arch Environ Contam Toxicol. 2010 Aug; 59(2):225-34.AE

Abstract

This paper presents data from original research for use in the development of a marine biotic ligand model and, ultimately, copper criteria for the protection of estuarine and marine organisms and their uses. Ten 48-h static acute (unfed) copper toxicity tests using the euryhaline rotifer Brachionus plicatilis ("L" strain) were performed to assess the effects of salinity, pH, and dissolved organic matter (measured as dissolved organic carbon; DOC) on median lethal dissolved copper concentrations (LC50). Reconstituted and natural saltwater samples were tested at seven salinities (6, 11, 13, 15, 20, 24, and 29 g/L), over a pH range of 6.8-8.6 and a range of dissolved organic carbon of <0.5-4.1 mg C/L. Water chemistry analyses (alkalinity, calcium, chloride, DOC, hardness, magnesium, potassium, sodium, salinity, and temperature) are presented for input parameters to the biotic ligand model. In stepwise multiple regression analysis of experimental results where salinity, pH, and DOC concentrations varied, copper toxicity was significantly related only to the dissolved organic matter content (pH and salinity not statistically retained; alpha=0.05). The relationship of the 48-h dissolved copper LC50 values and dissolved organic carbon concentrations was LC50 (microg Cu/L)=27.1xDOC (mg C/L)1.25; r2=0.94.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Arnold WR
Aquatic Ecological Risk Assessment LLC, 4411 Kinsey Drive, No. 635, Tyler, TX 75703, USA. wrayarnold@gmail.com
Diamond RL
No affiliation info available
Smith DS
No affiliation info available

MeSH

AnimalsCarbonCopperHydrogen-Ion ConcentrationRotiferaSalinitySeawaterToxicity Tests, AcuteWater Pollutants, Chemical

Pub Type(s)

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

Language

eng

PubMed ID

20101399

Citation

Arnold, W R., et al. "The Effects of Salinity, pH, and Dissolved Organic Matter On Acute Copper Toxicity to the Rotifer, Brachionus Plicatilis ("L" Strain)." Archives of Environmental Contamination and Toxicology, vol. 59, no. 2, 2010, pp. 225-34.
Arnold WR, Diamond RL, Smith DS. The effects of salinity, pH, and dissolved organic matter on acute copper toxicity to the rotifer, Brachionus plicatilis ("L" strain). Arch Environ Contam Toxicol. 2010;59(2):225-34.
Arnold, W. R., Diamond, R. L., & Smith, D. S. (2010). The effects of salinity, pH, and dissolved organic matter on acute copper toxicity to the rotifer, Brachionus plicatilis ("L" strain). Archives of Environmental Contamination and Toxicology, 59(2), 225-34. https://doi.org/10.1007/s00244-010-9467-8
Arnold WR, Diamond RL, Smith DS. The Effects of Salinity, pH, and Dissolved Organic Matter On Acute Copper Toxicity to the Rotifer, Brachionus Plicatilis ("L" Strain). Arch Environ Contam Toxicol. 2010;59(2):225-34. PubMed PMID: 20101399.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effects of salinity, pH, and dissolved organic matter on acute copper toxicity to the rotifer, Brachionus plicatilis ("L" strain). AU - Arnold,W R, AU - Diamond,R L, AU - Smith,D S, Y1 - 2010/01/26/ PY - 2009/08/11/received PY - 2010/01/04/accepted PY - 2010/1/27/entrez PY - 2010/1/27/pubmed PY - 2010/8/13/medline SP - 225 EP - 34 JF - Archives of environmental contamination and toxicology JO - Arch Environ Contam Toxicol VL - 59 IS - 2 N2 - This paper presents data from original research for use in the development of a marine biotic ligand model and, ultimately, copper criteria for the protection of estuarine and marine organisms and their uses. Ten 48-h static acute (unfed) copper toxicity tests using the euryhaline rotifer Brachionus plicatilis ("L" strain) were performed to assess the effects of salinity, pH, and dissolved organic matter (measured as dissolved organic carbon; DOC) on median lethal dissolved copper concentrations (LC50). Reconstituted and natural saltwater samples were tested at seven salinities (6, 11, 13, 15, 20, 24, and 29 g/L), over a pH range of 6.8-8.6 and a range of dissolved organic carbon of <0.5-4.1 mg C/L. Water chemistry analyses (alkalinity, calcium, chloride, DOC, hardness, magnesium, potassium, sodium, salinity, and temperature) are presented for input parameters to the biotic ligand model. In stepwise multiple regression analysis of experimental results where salinity, pH, and DOC concentrations varied, copper toxicity was significantly related only to the dissolved organic matter content (pH and salinity not statistically retained; alpha=0.05). The relationship of the 48-h dissolved copper LC50 values and dissolved organic carbon concentrations was LC50 (microg Cu/L)=27.1xDOC (mg C/L)1.25; r2=0.94. SN - 1432-0703 UR - https://www.unboundmedicine.com/medline/citation/20101399/The_effects_of_salinity_pH_and_dissolved_organic_matter_on_acute_copper_toxicity_to_the_rotifer_Brachionus_plicatilis__"L"_strain__ L2 - https://dx.doi.org/10.1007/s00244-010-9467-8 DB - PRIME DP - Unbound Medicine ER -