Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2134/jeq2001.303912x |
Accumulation, distribution, and toxicity of copper in sediments of catfish ponds receiving periodic copper sulfate applications | |
Han, FX; Hargreaves, JA; Kingery, WL; Huggett, DB; Schlenk, DK | |
通讯作者 | Hargreaves, JA |
来源期刊 | JOURNAL OF ENVIRONMENTAL QUALITY
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ISSN | 0047-2425 |
EISSN | 1537-2537 |
出版年 | 2001 |
卷号 | 30期号:3页码:912-919 |
英文摘要 | Copper sulfate (CuSO4) is applied periodically to commercial channel catfish (Ictalurus punctatus) ponds as an algicide or parasit icide. Current understanding of the chemistry of copper in soil-water systems suggests that copper may accumulate in pond sediments, although the forms and potential bioavailability of copper in catfish pond sediments are not known. This study investigated the accumulation and distribution of copper in the sediment of catfish ponds receiving periodic additions of CuSO4 . 5H(2)O. All ponds were constructed in Sharkey (very-fine, smectitic, thermic Chromic Epiaquert) soil. Nine 0.40 ha ponds received 59 applications of 2.27 kg CuSO4 . 5H(2)O per application per pond over 3 yr; no CuSO4 . 5H(2)O applications were made to nine additional ponds. Total Cu concentration in the sediments of CuSO4 . 5H(2)O-amended catfish ponds (172.5 mg kg(-1)) was four to five times higher than that in the sediments of nonamended ponds (36.1 mg kg(-1)). Copper accumulated in catfish pond sediments at a rate of 41 mug kg(-1) dry sediment for each 1 kg ha(-1) of CuSO4 . 5H(2)O applied to ponds. Copper in the sediments of amended ponds was mainly in the organic matter-bound (30.7%), carbonate-bound (31.8%), and amorphous iron oxide-bound (22.1%) fractions with a considerable fraction (3.4%; 3 to 8 mg kg(-1)) in soluble and exchange able fractions. This indicates that Cu accumulates differentially in various fractions, with proportionally greater initial accumulation in potentially bioavailable forms. However, toxicity bioassays with amphipods (Hyallela azteca) and common cattail (Typha latifolia L.) indicated that the effect of exposure to amended or nonamended pond sediments was not different. |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000169455600023 |
WOS关键词 | ARID-ZONE SOILS ; FRESH-WATER SEDIMENTS ; HEAVY-METALS ; TRACE-METALS ; FRACTIONATION ; BIOAVAILABILITY ; REDISTRIBUTION ; LAKE ; ZN ; NI |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/141187 |
作者单位 | (1)Mississippi State Univ, Dept Wildlife & Fisheries, Mississippi State, MS 39762 USA;(2)Mississippi State Univ, Dept Plant & Soil Sci, Mississippi State, MS 39762 USA;(3)Univ Mississippi, Dept Pharmacol, University, MS 38677 USA |
推荐引用方式 GB/T 7714 | Han, FX,Hargreaves, JA,Kingery, WL,et al. Accumulation, distribution, and toxicity of copper in sediments of catfish ponds receiving periodic copper sulfate applications[J],2001,30(3):912-919. |
APA | Han, FX,Hargreaves, JA,Kingery, WL,Huggett, DB,&Schlenk, DK.(2001).Accumulation, distribution, and toxicity of copper in sediments of catfish ponds receiving periodic copper sulfate applications.JOURNAL OF ENVIRONMENTAL QUALITY,30(3),912-919. |
MLA | Han, FX,et al."Accumulation, distribution, and toxicity of copper in sediments of catfish ponds receiving periodic copper sulfate applications".JOURNAL OF ENVIRONMENTAL QUALITY 30.3(2001):912-919. |
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