Arid
DOI10.2134/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
ISSN0047-2425
EISSN1537-2537
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
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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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