Selenium Levels in Biota from Irrigation Drainwater Impoundments in the San Joaquin Valley, California

Barnum, Douglas A.; Gilmer, David S.

doi:10.1080/07438148809354826

Cited by 21 publications

(10 citation statements)

References 15 publications

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“…Due to the propensity of Se to bioaccumulate through the food chain to toxic dietary concentrations, the criterion for chronic exposure of 5 lg l -1 of waterborne Se for the protection of freshwater organisms may be inadequate (Hamilton & Lemly, 1999;Hamilton, 2002). Waterborne concentrations of Se below the recommended 5 lg l -1 criterion were found to have adverse impacts on fish and bird communities subjected to agricultural runoffs in the western United States (Ohlendorf et al, 1986;Barnum & Gilmer, 1988;Saiki, 1990;Skorupa & Ohlendorf, 1991).…”

Section: Selenium Fish and Piscivorous Birdsmentioning

confidence: 95%

Contaminants in tilapia (Oreochromis mossambicus) from the Salton Sea, California, in relation to human health, piscivorous birds and fish meal production

et al. 2007

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A summary of all existing information collected since 1980 on contaminants in tilapia from the Salton Sea is presented and risks to humans and fish-eating birds assessed. Of the 17 trace elements, 42 organic pesticides and 48 polychlorinated biphenyls (PCBs) analyzed in tilapia whole body and fillet samples, only selenium (Se), arsenic (As) and possibly dichlorodiphenyltrichloroethane (DDE) were found at levels high enough to be of concern for fish, birds or humans. Average current concentration of arsenic (As) was 0.7 lg g -1 wet weight (ww) in whole body samples and 1.2 lg g -1 ww in fillet samples, or 2.8 and 5.7 lg g -1 dry weight (dw), respectively. Inorganic As averaged 0.006 lg g -1 ww (0.03 lg g -1 dw) in fillet samples, which represented 0.3% of total As.

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Section: Selenium Fish and Piscivorous Birdsmentioning

confidence: 95%

Contaminants in tilapia (Oreochromis mossambicus) from the Salton Sea, California, in relation to human health, piscivorous birds and fish meal production

et al. 2007

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“…Selenium-enriched plant tissue consumed by the insect may not only have negative consequences for the insect (Vickerman and Trumble, 1999;Trumble et a/.,1998) but also for the invertebrates and vertebrates that feed on them (Wu et al, 1995;Barnum and Gilmer, 1988). A biotransfer of Se was responsible for the deleterious effects observed on waterfowl frequenting a Se-rich ecosystem at Kesterson Reservoir, California, USA (Ohlendorf and Hothem, 1995).…”

Section: Introductionmentioning

confidence: 99%

Biotransfer Possibilities of Selenium from Plants Used in Phytoremediation

Bañuelos¹,

Vickerman

Trumble

et al. 2002

International Journal of Phytoremediation

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We are investigating the biotransfer of accumulated Se by the plant in several phytoremediation systems. In study I, we evaluated the biotransfer of Se from Indian mustard, a Brassica species, to the insect-cabbage looper (Trichoplusia ni); mortality, deterrence, and biomagnification of Se were examined. We determined that feeding behavior of food chain consumers was affected not only by the plant concentration of Se, but also by the mobility of the insects and choice of feed available. In study II, we examined the survival and development of beet armyworm (Spodoptera exigua) fed Se-enriched plant tissues from different lines of saltbush (Atriplex spp.) After feeding on lines of saltbush that produced high biomass and accumulated high concentrations of Se, insect growth and survival was reduced. In studies III, IV, and V, lambs, dairy cows, and rabbits were fed Se-enriched Brassica and Medicago (alfalfa) plants as part of their feed ration. None of the tested animals exhibited any Se toxicity symptoms, but they had increased levels of Se in most tissues sampled (e.g., organs, blood, urine, feces), excluding milk. In study VI, we evaluated biotransfer of Se from broccoli to rats to determine efficacy of Se for reducing colon cancer. We found that Se-enriched plant material was more effective than inorganic sources of Se for preventing precancerous colon lesions. Results from all studies clearly show that Se absorbed by plants can be transferred biologically in an intentional or unintentional manner to insects and animals.

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“…This difference could be due to movement of birds in and out of the Salton Sea area from areas with different selenium concentrations. The selenium concentrations in 1978 were comparable to those for ruddy ducks collected at a contaminated site in the Tulare Basin (geometric mean 37.3 ug/g dry weight; Barnum and Gilmer, 1988). No data for an uncontaminated site were available, but the mean selenium concentrations in ruddy duck livers from the Salton Sea in 1988-90 were less than the 30 ug/g dry weight threshold (U.S.…”

Section: Birdsmentioning

confidence: 82%

Detailed study of water quality, bottom sediment, and biota associated with irrigation drainage in the Salton Sea area, California, 1988-90

Setmire¹

1993

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Selenium Levels in Biota from Irrigation Drainwater Impoundments in the San Joaquin Valley, California

Cited by 21 publications

References 15 publications

Contaminants in tilapia (Oreochromis mossambicus) from the Salton Sea, California, in relation to human health, piscivorous birds and fish meal production

Contaminants in tilapia (Oreochromis mossambicus) from the Salton Sea, California, in relation to human health, piscivorous birds and fish meal production

Biotransfer Possibilities of Selenium from Plants Used in Phytoremediation

Detailed study of water quality, bottom sediment, and biota associated with irrigation drainage in the Salton Sea area, California, 1988-90

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