2012
DOI: 10.1021/es302599t
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Assessing Impacts of Land-Applied Manure from Concentrated Animal Feeding Operations on Fish Populations and Communities

Abstract: Concentrated animal feeding operation (CAFO) manure is a cost-effective fertilizer. In the Midwest, networks of subsurface tile-drains expedite transport of animal hormones and nutrients from land-applied CAFO manure to adjacent waterways. The objective of this study was to evaluate impacts of land-applied CAFO manure on fish populations and communities. Water chemistry including hormone, pesticide, and nutrient concentrations was characterized from study sites along with fish assemblage structure, growth, and… Show more

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Cited by 48 publications
(25 citation statements)
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“…Although we did not measure nutrients, the CAFO pond was likely highly enriched, judging by its green color, dense aquatic vegetation, and high water concentrations of nutrients from adjacent ditches (19.763 and 1.560.4 mg/L for total nitrogen and total phosphorous) in previous studies (Leet et al, 2012). This eutrophication could explain why turtles from the CAFO site were heavier (e.g., Naimi et al, 2012).…”
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confidence: 83%
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“…Although we did not measure nutrients, the CAFO pond was likely highly enriched, judging by its green color, dense aquatic vegetation, and high water concentrations of nutrients from adjacent ditches (19.763 and 1.560.4 mg/L for total nitrogen and total phosphorous) in previous studies (Leet et al, 2012). This eutrophication could explain why turtles from the CAFO site were heavier (e.g., Naimi et al, 2012).…”
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confidence: 83%
“…Concentrations of sex steroids in the water were higher at the CAFO site (Table 1), but still low compared to other agricultural ditches sampled within this same CAFO (Leet et al 2012). Forty turtles were sampled, 21 from the CAFO pond (10 males, 5 each year; and 11 females, 7 in 2008), and 19 from the Martell pond (10 males, 5 each year; and 9 females, 5 in 2008).…”
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confidence: 96%
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“…17a-TBOH represents about 95% of identifiable excreted metabolites by mass 4 , although a number of unidentified TBA metabolites likely exist. Given the typical application rates of TBA to cattle, mass balance calculations predict that thousands of ng l À 1 are possible in agricultural runoff 5,6 , although concentrations observed in receiving waters are typically far lower when detected 7,8 . Field observations have documented 1,700 ng l À 1 17a-TBOH in manure lagoons 9 , and 55 ± 22 ng g À 1 in solid manure and surface soils 10 .…”
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confidence: 99%