Abstract：
:The present study evaluated Se bioaccumulation in four waterbird species (n=206 birds) that breed within San Francisco Bay, California, U.S.A.: American avocets (Recurvirostra americana), black-necked stilts (Himantopus mexicanus), Forster's terns (Sterna forsteri), and Caspian terns (Hydroprogne caspia). Selenium concentrations were variable and influenced by several factors, including species, region, reproductive stage, age, and sex. Adult Se concentrations (microg/g dry wt) in livers ranged from 3.07 to 48.70 in avocets (geometric mean +/- standard error, 7.92 +/- 0.64), 2.28 to 41.10 in stilts (5.29 +/- 0.38), 3.73 to 14.50 in Forster's terns (7.13 _ 0.38), and 4.77 to 14.40 in Caspian terns (6.73 +/- 0.78). Avocets had higher Se concentrations in the North Bay compared to the South Bay, whereas stilt Se concentrations were similar between these regions and Forster's terns had lower Se concentrations in the North Bay compared to the South Bay. Female avocets had higher Se concentrations than male avocets, but this was not the case for stilts and Forster's terns. Of the factors assessed, reproductive stage had the most consistent effect among species. Prebreeding birds tended to have higher liver Se concentrations than breeding birds, but this trend was statistically significant only for Forster's terns. Forster's tern chicks had lower Se concentrations than Forster's tern adults, whereas avocet and stilt adults and chicks were similar. Additionally, body condition was negatively related to liver Se concentrations in Forster's tern adults but not in avocet, stilt, or Caspian tern adults and chicks. These variable results illustrate the complexity of Se bioaccumulation and highlight the need to sample multiple species and examine several factors to assess the impact of Se on wildlife.
journal_name
Environ Toxicol Chemjournal_title
Environmental toxicology and chemistryauthors
Ackerman JT,Eagles-Smith CAdoi
10.1897/09-101.1subject
Has Abstractpub_date
2009-10-01 00:00:00pages
2134-41issue
10eissn
0730-7268issn
1552-8618pii
09-101journal_volume
28pub_type
杂志文章abstract：:Pulp and paper mill effluents have been linked to effects on fish reproduction for more than 25 years. To date, the causes of these effects and remedial strategies have eluded investigators. Recent work has shown that the degree of reproductive effect caused by a mill effluent is related to the overall organic content...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.526
更新日期：2011-06-01 00:00:00
abstract：:Environmental factors, in particular temperature, have been shown to affect the toxicity of chemicals. In the present study the authors exposed the nematode Caenorhabditis elegans to five concentrations of Cd (2, 4, 6, 8, and 10 mg Cd/L agar) at four constant temperatures (11, 15, 18, and 21°C) and monitored survival ...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.1746
更新日期：2012-04-01 00:00:00
abstract：:Currently, environmental studies describing levels of polychlorinated biphenyls (PCBs) in imported shrimp are limited, particularly studies of aquaculture shrimp. In the present study, we measured concentrations of the 209 PCB congeners in 84 uncooked, warm-water shrimp samples from the United States and 14 other coun...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.1803
更新日期：2012-05-01 00:00:00
abstract：:The influence of seasonal changes in water conditions and parameters on several major pharmacologically active compounds (PhACs) and s-triazine herbicides was assessed in the wastewater and sewage treatment plant (WSTP) effluent as well as the downstream surface water from sites on the Canadian side of the upper Detro...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/05-571r.1
更新日期：2006-09-01 00:00:00
abstract：:Oxygen consumption is indicative of an organism's metabolic state, whereby alterations in respiration rate can result from the presence of different stimuli. Here, we develop a novel approach based on quenched fluorescence oxygen sensing and respirometry method for toxicity screening assays using the nematode Caenorha...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/08-083.1
更新日期：2009-04-01 00:00:00
abstract：:Eight propylene glycol substances, ranging from 1,2-propanediol to a poly(propylene glycol) (PPG) having number-average molecular weight (M(n)) of 2,700 (i.e., PPG 2700), were evaluated in the Organization for Economic Cooperation and Development (OECD) ready- and seawater biodegradability tests. Uniformity in test pa...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/06-327r.1
更新日期：2007-05-01 00:00:00
abstract：:The extent to which persistent organic pollutants (POPs) with different physicochemical properties originated from the food (dietary input) was assessed in raptor nestlings. Lipophilic polychlorinated biphenyl (PCB) 153, 1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p'-DDE), and hexachlorobenzene (HCB), and protein-bo...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.2329
更新日期：2013-11-01 00:00:00
abstract：:Standard ecotoxicity tests are conducted under constant and favorable experimental conditions. In natural communities, however, the toxicity of chemicals may be influenced by abiotic and biotic environmental factors. Firstly, the authors examined the influence of temperature and total food concentration on the nature ...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.3235
更新日期：2016-03-01 00:00:00
abstract：:Lead (Pb) is a typical toxic heavy metal element in soils and plants, which has a potential threat to human health through the food chain. Pb uptake in the soil-vegetable system has attracted broad attention, while reports on the main controlling factors of Pb uptake and accumulation in different soil-vegetable system...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.4997
更新日期：2021-01-27 00:00:00
abstract：:Radiotracer experiments were conducted to examine the influence of the concentration of Cd, Se, and Zn in ingested phytoplankton (dinoflagellate Prorocentrum minimum and diatom Thalassiosira weissflogii) and in ambient seawater on metal assimilation and elimination efficiencies of three marine copepods, Acartia spinic...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：
更新日期：2001-05-01 00:00:00
abstract：:Temperature is an important factor affecting toxicity, determining chemical toxicokinetics and toxicodynamics in poikilothermic organisms. Because metabolic rates are also affected by temperature, interactions between the emergence of toxic effects and time are very likely. The aim of the present study was to investig...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.2563
更新日期：2014-06-01 00:00:00
abstract：:The toxicity and uptake of polycyclic aromatic hydrocarbons (PAHs) by earthworms were measured in soil samples collected from manufactured-gas plant sites having a wide range in PAH concentrations (170-42,000 mg/kg) and soil characteristics. Samples varied from vegetated soils to pure lampblack soot and had total orga...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/06-608R.1
更新日期：2007-09-01 00:00:00
abstract：:Synthetic organic chemicals are present in environmental compartments as complex mixtures and therefore their potential effects are difficult to predict. In this study, in vitro bioassays using wild-type fish and rat hepatoma cell lines and their corresponding recombinant cell systems were used to evaluate 2,3,7,8-tet...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：
更新日期：2001-12-01 00:00:00
abstract：:The anion perchlorate (ClO4-) is an oxidizing component commonly used in solid propellants for rockets and missiles; in explosives, flares, fireworks, chemical processes, and automobile air-bag inflators; and for other assorted uses. With recent advances in analytical detection capability, perchlorate has been found i...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章,评审
doi：10.1897/02-648
更新日期：2004-06-01 00:00:00
abstract：:Ten agronomic plant species were exposed to different concentrations of nano-titanium dioxide (nTiO2 ) or nano-cerium oxide (nCeO2 ) (0 μg/mL, 250 μg/mL, 500 μg/mL, and 1000 μg/mL) to examine potential effects on germination and early seedling development. The authors modified a standard test protocol developed for so...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.3374
更新日期：2016-09-01 00:00:00
abstract：:Adsorption of organic compounds onto hard carbon constituents of soils and sediments may be described by a dual Langmuir-like equation for adsorption onto high-energy sites and low-energy sites. To describe quantitatively the sorbate-sorbent interactions on these high-energy sites and low-energy sites, Gibbs free ener...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/06-218r.1
更新日期：2006-12-01 00:00:00
abstract：:Eel aquaculture is capture based and thus dependent on the fishery for juvenile glass eels. This fishery typically takes place in estuaries where salinity varies and ammonia levels can be elevated. Also, during capture and transport glass eels are kept at high densities and ammonia from endogenous production can incre...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/08-104.1
更新日期：2009-01-01 00:00:00
abstract：:The major toxaphene metabolites in sediment and soils (2-exo,3-endo,6-exo,8,9,10-hexachlorobornane [B6-923] and 2-endo,3-exo,5-endo,6-exo,8,9,10-heptachlorobornane [B7-1001]) were incubated with the isolated gram-negative bacterium Dehalospirillum multivorans. Within 14 d, biotransformation of B7-1001 was nearly quant...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/03-221
更新日期：2004-03-01 00:00:00
abstract：:Lanthanide emissions to the environment increase as a result of the growing industrial applications of these elements. However, robust data to evaluate the environmental fate of lanthanides are scarce. This article describes the accumulation and elimination of lanthanum (La) by common duckweed (Lemna minor L.). Specia...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:Recent laboratory investigations into the bioaccumulation and toxicity of polycyclic aromatic hydrocarbons (PAH) have focused on low-level, time-variable exposures to early life-stage fish. Polycyclic aromatic hydrocarbon body-burden residues reported in these studies were lower than critical body-burden residues pred...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/07-355.1
更新日期：2008-07-01 00:00:00
abstract：:A major problem with risk assessment of chemicals is the extrapolation of laboratory single-species toxicity tests, which oversimplify the actual field situation by ignoring species interactions, to natural communities. The authors tested if the bioavailability-normalized 5% hazardous concentration (HC5) estimated fro...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.3435
更新日期：2016-11-01 00:00:00
abstract：:Exposure to metal-contaminated water has been shown to result in a number of reproductive abnormalities in adult and larvae fish, such as failure of oocyte maturation and teratogenic effects. Recently, dietary uptake of metals by fish has been recognized as a critical route of exposure, however, the mechanisms of meta...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.381
更新日期：2011-01-01 00:00:00
abstract：:The toxicity and estrogenicity of a final treated municipal effluent was examined while flowing through a constructed wetland in north-central Texas, USA. Fish data were collected, and a baseline wetland characterization was performed to assess wetland treatment potential for these effluent properties. Vitellogenin (V...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/1551-5028(2001)020<2268:aoteat>2.0.co;2
更新日期：2001-10-01 00:00:00
abstract：:We evaluated the potential interaction of pesticide effect and predatory fish on behavior and mortality of a stream mayfly. Experiments in laboratory stream microcosms compared the activity, drift, and mortality of Baetis mayfly nymphs in the absence of fish with that in the presence of Cape galaxias (Galaxias zebratu...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/1551-5028(2001)020<2537:ceopfa>2.0.co;2
更新日期：2001-11-01 00:00:00
abstract：:Triclosan (TCS) is a common constituent of personal care products and is frequently present in biosolids. Application of biosolids to land transfers significant amounts of TCS to soils. Because TCS is an antimicrobial and is toxic to some aquatic organisms, concern has arisen that TCS may adversely affect soil organis...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.1721
更新日期：2012-03-01 00:00:00
abstract：:The present study examined how subcellular partitioning of Cd in plants with different strategies to store and detoxify Cd may affect trophic transfer of Cd to the isopod Porcellio dilatatus. The plant species used were Lactuca sativa, a horticultural metal accumulator species; Thlaspi caerulescens, a herbaceous hyper...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/08-154.1
更新日期：2008-12-01 00:00:00
abstract：:We conducted field studies over three years to assess body burdens and maternal transfer of polychlorinated biphenyls (PCBs) as well as indices of sexual dimorphism in snapping turtles (Chelydra serpentina) of the upper Hudson River (NY, USA.) We collected adult turtles in areas known to be contaminated with PCBs and ...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/08-098.1
更新日期：2008-12-01 00:00:00
abstract：:As part of a research effort examining system-wide responses of the hypothalamic-pituitary-gonadal (HPG) axis in fish to endocrine-active chemicals (EACs) with different modes of action, zebrafish (Danio rerio) were exposed to 25 or 100 microg/L of the aromatase inhibitor fadrozole for 24, 48, or 96 h. Global transcri...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/08-653.1
更新日期：2009-08-01 00:00:00
abstract：:Intersex in wild fish populations has received considerable attention in the scientific literature and public media. Conventional detection of testicular oocytes, the presence of immature oocytes within testis of male fish, commonly employs transverse sectioning of excised testis and is lethal. The present study used ...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.3716
更新日期：2017-07-01 00:00:00
abstract：:We propose a biologically based approach to analyze reproductive data for the midge (Chironomus riparius). We showed in a previous study that its larval development can be divided in two distinct phases regarding the use of energy: The somatic growth period and the gametic growth period. We hypothesize here the gameti...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/03-52
更新日期：2004-01-01 00:00:00
