Accumulation of Selenium by the Aquatic Biota of a Watershed Treated with Seleniferous Fertilizer

Maier, Kurt J.; Nelson, Catherine R.; Bailey, Frank C.; Klaine, Stephen J.; Knight, Allen W.

doi:10.1007/s001289900641

Cited by 24 publications

(14 citation statements)

References 7 publications

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“…As is the case for Zn, Se added to NPK fertilizers has been successfully used in Finland and New Zealand to increase the Se content of grains, with a positive impact on the general health and wellbeing of the population (Combs 2001;Rayman 2002). The same strategy has been proposed in the UK (Broadley et al 2006) but failed in some regions of USA because of leaching and accumulation in aquatic biota (Maier et al 1998). Trials are underway to test different crops for Se accumulation through mineral fertilization (Carvalho et al 2003) focusing on regions with Se-deficient soils (Chen et al 2002).…”

Section: Seleniummentioning

confidence: 89%

Critical evaluation of strategies for mineral fortification of staple food crops

et al. 2009

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Staple food crops, in particular cereal grains, are poor sources of key mineral nutrients. As a result, the world's poorest people, generally those subsisting on a monotonous cereal diet, are also those most vulnerable to mineral deficiency diseases. Various strategies have been proposed to deal with micronutrient deficiencies including the provision of mineral supplements, the fortification of processed food, the biofortification of crop plants at source with mineral-rich fertilizers and the implementation of breeding programs and genetic engineering approaches to generate mineral-rich varieties of staple crops. This review provides a critical comparison of the strategies that have been developed to address deficiencies in five key mineral nutrients-iodine, iron, zinc, calcium and selenium-and discusses the most recent advances in genetic engineering to increase mineral levels and bioavailability in our most important staple food crops.

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Section: Seleniummentioning

confidence: 89%

Critical evaluation of strategies for mineral fortification of staple food crops

et al. 2009

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“…Benthic invertebrates can be efficient accumulators of selenium and can retain elevated concentrations over long periods. For example, Maier et al (1998) reported that aquatic invertebrates contained selenium concentrations of 1.7 µg/g at pretreatment of a watershed with selenium fertilizer, and elevated concentrations during post-treatment monitoring: 4.7 µg/g at 11 days, 4.0 µg/g at 2 months, 5.0 µg/g at 4 months, 4.2 µg/g at 6 months, 4.3 µg/g at 8 months, and 4.5 µg/g at 11 months.…”

Section: Aquatic Invertebratesmentioning

confidence: 98%

Selenium in the Blackfoot, Salt, and Bear River Watersheds

Hamilton

Buhl

2005

Environ Monit Assess

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Nine stream sites in the Blackfoot River, Salt River, and Bear River watersheds in southeast Idaho, USA were sampled in May 2001 for water, surficial sediment, aquatic plants, aquatic invertebrates, and fish. Selenium was measured in these aquatic ecosystem components, and a hazard assessment was performed on the data. Water quality characteristics such as pH, hardness, and specific conductance were relatively uniform among the nine sites. Of the aquatic components assessed, water was the least contaminated with selenium because measured concentrations were below the national water quality criterion of 5 microg/L at eight of the nine sites. In contrast, selenium was elevated in sediment, aquatic plants, aquatic invertebrates, and fish from several sites, suggesting deposition in sediments and food web cycling through plants and invertebrates. Selenium was elevated to concentrations of concern in fish at eight sites (> 4 microg/g in whole body). A hazard assessment of selenium in the aquatic environment suggested a moderate hazard at upper Angus Creek (UAC) and Smoky Creek (SC), and high hazard at Little Blackfoot River (LiB), Blackfoot River gaging station (BGS), State Land Creek (SLC), upper (UGC) and lower Georgetown Creek (LGC), Deer Creek (DC), and Crow Creek (CC). The results of this study indicate that selenium concentrations from the phosphate mining area of southeast Idaho were sufficiently eleated in several ecosystem components to cause adverse effects to aquatic resources in southeastern Idaho.

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“…There is some evidence that invertebrates do not have efficient Se removal excretion pathways, leading to toxic levels of organic Se bioconcentration and high levels of organic Se that are in turn bioavailable to fish and birds in these environments. 41 Our data elucidating all the individual forms of Se in these specific aquatic invertebrates is important because different forms have various levels of toxicity with some organic Se forms reported as nutritionally beneficial and anticarcinogenic. [51][52][53][54][55] Selenomethionine, for example, has been shown to cause higher toxicity rates in birds and accessed by following the link in the citation at the bottom of the page.…”

Section: Selenium Contaminated Water and Aquatic Ecosystem Managementmentioning

confidence: 99%

“…This means that at water concentration of 10 mg Se L -1 , harvested brine shrimp contained ∼10 mg Se kg -1 . At least one study has shown aquatic macroinvertebrates unable to get rid of internal Se once acquired, 41 though more recent results indicate slow Se decrease in macroinvertebrates following dose of a Se pulse. 42 The internal Se concentration of brine shrimp in this study appeared to mimic water Se concentration and ratios of total Se were similar to those observed at Kesterson reservoir.…”

mentioning

confidence: 99%

Selenium Biotransformations in an Engineered Aquatic Ecosystem for Bioremediation of Agricultural Wastewater via Brine Shrimp Production

Schmidt

Tantoyotai

Fakra

et al. 2013

Environ. Sci. Technol.

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Accumulation of Selenium by the Aquatic Biota of a Watershed Treated with Seleniferous Fertilizer

Cited by 24 publications

References 7 publications

Critical evaluation of strategies for mineral fortification of staple food crops

Critical evaluation of strategies for mineral fortification of staple food crops

Selenium in the Blackfoot, Salt, and Bear River Watersheds

Selenium Biotransformations in an Engineered Aquatic Ecosystem for Bioremediation of Agricultural Wastewater via Brine Shrimp Production

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