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Effects of acclimation on the toxicity of stream water contaminated with zinc and cadmium to juvenile cutthroat trout.
Arch Environ Contam Toxicol. 2008 May; 54(4):697-704.AE

Abstract

We investigated the influence of acclimation on results of in situ bioassays with cutthroat trout in metal-contaminated streams. Cutthroat trout (Oncorhynchus clarki) were held for 21 days (1) in live containers at a reference or "clean" site having dissolved metals near detection limits (0.01 microg/L cadmium [Cd] and 2.8 microg/L zinc [Zn]; hardness 32 mg/L as CaCO(3)) and (2) at a site in a mining-impacted watershed having moderately increased metals (0.07 microg/L Cd and 38 to 40 microg/L Zn; hardness 50 mg/L as CaCO(3)). The 96-hour survival of each treatment group was then tested in situ at five sites from September 5 to 9, 2002, and each group exhibited a range of metal concentrations (0.44 to 39 microg/L arsenic [As], 0.01 to 2.2 microg/L Cd, and 0.49 to 856 microg/L Zn). Survival was 100% at three sites for both treatments. However, a higher percentage of metal-acclimated fish survived at the site with the second highest concentrations of Cd and Zn (0.90 and 238 microg/L, respectively) compared with fish acclimated at the reference site (100% vs. 55%, respectively). Survival was 65% for acclimated fish and 0% for metal-naïve fish at the site with the largest metal concentrations (2.2 microg/L Cd and 856 microg/L Zn). Water collected from the site with the largest concentrations of dissolved metals (on October 30, 2002) was used in a laboratory serial dilution to determine 96-hour LC(50) values. The 96-hour LC(50) estimates of naïve fish during the in situ and laboratory experiments were similar (0.60 mug Cd/L and 226 microg Zn/L for in situ and 0.64 microg Cd/L and 201 microg Zn/L for laboratory serial dilutions). However, mortality of naïve cutthroat trout tested under laboratory conditions was more rapid in dilutions of 100%, 75%, and 38% site water than in situ experiments.

Authors+Show Affiliations

Harper DD
Jackson Field Research Station, Columbia Environmental Research Center, United States Geological Survey, PO Box 1089, Jackson, WY 83001, USA. david_harper@usgs.gov
Farag AM
No affiliation info available
Brumbaugh WG
No affiliation info available

MeSH

AcclimatizationAnimalsBiological AssayCadmium CompoundsDose-Response Relationship, DrugFresh WaterLife Cycle StagesLongevityOncorhynchusWater Pollutants, ChemicalZinc Compounds

Pub Type(s)

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

Language

eng

PubMed ID

17972004

Citation

Harper, D D., et al. "Effects of Acclimation On the Toxicity of Stream Water Contaminated With Zinc and Cadmium to Juvenile Cutthroat Trout." Archives of Environmental Contamination and Toxicology, vol. 54, no. 4, 2008, pp. 697-704.
Harper DD, Farag AM, Brumbaugh WG. Effects of acclimation on the toxicity of stream water contaminated with zinc and cadmium to juvenile cutthroat trout. Arch Environ Contam Toxicol. 2008;54(4):697-704.
Harper, D. D., Farag, A. M., & Brumbaugh, W. G. (2008). Effects of acclimation on the toxicity of stream water contaminated with zinc and cadmium to juvenile cutthroat trout. Archives of Environmental Contamination and Toxicology, 54(4), 697-704.
Harper DD, Farag AM, Brumbaugh WG. Effects of Acclimation On the Toxicity of Stream Water Contaminated With Zinc and Cadmium to Juvenile Cutthroat Trout. Arch Environ Contam Toxicol. 2008;54(4):697-704. PubMed PMID: 17972004.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of acclimation on the toxicity of stream water contaminated with zinc and cadmium to juvenile cutthroat trout. AU - Harper,D D, AU - Farag,A M, AU - Brumbaugh,W G, PY - 2007/11/1/pubmed PY - 2008/5/7/medline PY - 2007/11/1/entrez SP - 697 EP - 704 JF - Archives of environmental contamination and toxicology JO - Arch Environ Contam Toxicol VL - 54 IS - 4 N2 - We investigated the influence of acclimation on results of in situ bioassays with cutthroat trout in metal-contaminated streams. Cutthroat trout (Oncorhynchus clarki) were held for 21 days (1) in live containers at a reference or "clean" site having dissolved metals near detection limits (0.01 microg/L cadmium [Cd] and 2.8 microg/L zinc [Zn]; hardness 32 mg/L as CaCO(3)) and (2) at a site in a mining-impacted watershed having moderately increased metals (0.07 microg/L Cd and 38 to 40 microg/L Zn; hardness 50 mg/L as CaCO(3)). The 96-hour survival of each treatment group was then tested in situ at five sites from September 5 to 9, 2002, and each group exhibited a range of metal concentrations (0.44 to 39 microg/L arsenic [As], 0.01 to 2.2 microg/L Cd, and 0.49 to 856 microg/L Zn). Survival was 100% at three sites for both treatments. However, a higher percentage of metal-acclimated fish survived at the site with the second highest concentrations of Cd and Zn (0.90 and 238 microg/L, respectively) compared with fish acclimated at the reference site (100% vs. 55%, respectively). Survival was 65% for acclimated fish and 0% for metal-naïve fish at the site with the largest metal concentrations (2.2 microg/L Cd and 856 microg/L Zn). Water collected from the site with the largest concentrations of dissolved metals (on October 30, 2002) was used in a laboratory serial dilution to determine 96-hour LC(50) values. The 96-hour LC(50) estimates of naïve fish during the in situ and laboratory experiments were similar (0.60 mug Cd/L and 226 microg Zn/L for in situ and 0.64 microg Cd/L and 201 microg Zn/L for laboratory serial dilutions). However, mortality of naïve cutthroat trout tested under laboratory conditions was more rapid in dilutions of 100%, 75%, and 38% site water than in situ experiments. SN - 1432-0703 UR - https://www.unboundmedicine.com/medline/citation/17972004/Effects_of_acclimation_on_the_toxicity_of_stream_water_contaminated_with_zinc_and_cadmium_to_juvenile_cutthroat_trout_ DB - PRIME DP - Unbound Medicine ER -