Abstract:
:Sexually maturing female rainbow trout, Oncorhynchus mykiss, were exposed to 10 microg/L of waterborne lead Pb(NO(3))(2) for 12 days during endogenous vitellogenesis and 12 days during exogenous vitellogenesis. Lead had no significant effect on either gonadosomatic indices or mean maximum diameters of developing oocytes during early vitellogenesis. When females were exposed during exogenous vitellogenesis, however, both GSI and oocyte growth were significantly different from controls on day 12. Similarly GSI and oocyte growth was significantly reduced in lead-exposed fish. Atomic absorption spectroscopy measurements of lead levels in liver, ovaries, and blood tissues showed significant levels of lead in the blood. Lead did not accumulate in either the ovaries or the liver. Analysis of pituitary basophils during both endogenous and exogenous vitellogenesis and subsequent comparison with reproductive parameters in the ovaries indicated that GtH-basophils did not significantly increase in controls during endogenous vitellogenesis, and there was no significant change in GSI or ovarian growth in either controls or lead-exposed females. However during exogenous vitellogenesis, control basophils significantly increased over the 12-day experiment, but were not significantly different over 12 days in lead-exposed females. Both GSI and oocyte growth were significantly different from controls in lead-exposed females. The results suggest that naturally occurring changes in GTH-producing basophils during vitellogenesis alters GSI and oocyte growth in female rainbow trout exposed to lead during exogenous vitellogenesis, but not during endogenous vitellogenesis.
journal_name
Arch Environ Contam Toxicoljournal_title
Archives of environmental contamination and toxicologyauthors
Ruby SM,Hull R,Anderson Pdoi
10.1007/s002449910006subject
Has Abstractpub_date
2000-01-01 00:00:00pages
46-51issue
1eissn
0090-4341issn
1432-0703pii
98174journal_volume
38pub_type
杂志文章abstract::Egg yolk was spiked with p,p'-dicofol (p,p'-DCF) (0.1-2.0 micrograms/gm), p,p'-dichlorobenzophenone (p,p'-DCBP) (0.1-2.0 micrograms/gm), and 1,1-bis(4-chlorophenyl)-2,2-dichloroethylene (p,p'-DDE) (0.05-1.0 micrograms/gm). The fortified egg yolk (2-5 g) was mixed with acetonitrile to extract non-fat organic materials....
journal_title:Archives of environmental contamination and toxicology
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abstract::The fluctuations of mercury levels (Hg) in fish consumed by sport fishers in North-Eastern America depend upon a plethora of interrelated biological and abiological factors. To identify the dominant factors ultimately controlling fish Hg concentrations, we compiled mercury levels (Hg) during the 1976-2010 period in 90...
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doi:10.1007/s00244-005-0064-1
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abstract::Persistent organic pollutants, such as organochlorine insecticides and polychlorinated biphenyls (PCBs), were measured in several environmental matrices including aerial deposition, seawater, sediment, and biota in two important coastal wetlands of Hong Kong, China. Specifically, samples were collected from within the...
journal_title:Archives of environmental contamination and toxicology
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doi:10.1007/s00244-004-0166-1
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abstract::An enzyme which catalyzed the hydrolysis of crotoxyphos ((E)-1-phenylethyl 3-[(dimethoxyphosphinyl)oxy]-2-butenoate) was isolated from nonsterile and radiation-sterilized Chehalis clay loam with 1.5M Tris (2-(hydroxymethyl)-2-nitro-1,3-propanediol) and partially purified with lead acetate treatment. Two soil-g equival...
journal_title:Archives of environmental contamination and toxicology
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journal_title:Archives of environmental contamination and toxicology
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journal_title:Archives of environmental contamination and toxicology
pub_type: 杂志文章
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journal_title:Archives of environmental contamination and toxicology
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journal_title:Archives of environmental contamination and toxicology
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doi:10.1007/s00244-007-9030-4
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journal_title:Archives of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00244-015-0182-3
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abstract::Pentachlorophenol (PCP) is a widespread contaminate of soils and ground water throughout North America. Earlier studies have indicated that microbial biodegradation leads to the formation of intermediate metabolites which are more toxic than the parent compound. Microbial degradation is by three general pathways: dech...
journal_title:Archives of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/BF00203555
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journal_title:Archives of environmental contamination and toxicology
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journal_title:Archives of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00244-009-9366-z
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abstract::The effects of consumption of environmental contaminants contained in carp (Cyprinus carpio) from Saginaw Bay, Michigan on various hematological parameters and liver integrity of adult female mink (Mustela vision) were determined. Mink were fed diets that contained 0 (control), 10, 20, or 40% carp prior to and through...
journal_title:Archives of environmental contamination and toxicology
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journal_title:Archives of environmental contamination and toxicology
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journal_title:Archives of environmental contamination and toxicology
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journal_title:Archives of environmental contamination and toxicology
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abstract::The effect of growth and physical condition on the level of heavy metals accumulated in the organs of common bream (Abramis brama L.) populating Lake Balaton was investigated on samples collected in October 1999 and May 2000 from two well-separable sites regarding their trophic state and pollution impact (western and ...
journal_title:Archives of environmental contamination and toxicology
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abstract::The bioavailability of Cd, Cu, Zn, and Pb from two metal-contaminated sediments (Bidassoa and Dunkerque) was studied using Crassostrea gigas larvae exposed to sediment elutriates. The metal contents within the sediments, the larvae and larval growth, the condition index, and the induction of metallothionein in the lar...
journal_title:Archives of environmental contamination and toxicology
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abstract::The effects of both parathion and methyl parathion on the inhibition of plasma cholinesterase were elaborated in a rat model employing a modified isocratic reverse-phase HPLC method coupled with UV detection for the determination of the urinary metabolite p-nitrophenol (U-4NP). A linearity of r2 > 0.995 was found for ...
journal_title:Archives of environmental contamination and toxicology
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doi:10.1007/s002449900207
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journal_title:Archives of environmental contamination and toxicology
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abstract::Organochlorine pesticides (OCPs) in the persistent organic pollutants class are pollutants that can enter water reservoirs, soils, and sediments by atmospheric deposition. The aim of the present study was to determine the total atmospheric deposition fluxes of OCPs in a semi-rural area in Bursa, Turkey. Total depositi...
journal_title:Archives of environmental contamination and toxicology
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abstract::Polychlorinated biphenyl (PCB) concentrations, profiles, and possible sources were determined in the atmosphere of Guangzhou, the largest city in south China. summation operator PCB concentrations ranged from 160 to 2720 pg/m(3), which is comparable with values found by similar studies in North America, Europe, and As...
journal_title:Archives of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00244-009-9293-z
更新日期:2009-10-01 00:00:00
abstract::The toxicity of two amines, nonylamine and decylamine, which have a narcotic effect on organisms, and ethylparathion (enzymatic inhibitor) on Daphnia magna has been studied when acting singly and in joint toxicity tests. This was done on the basis of an isobologram method where curves of constant response, i.e., isobo...
journal_title:Archives of environmental contamination and toxicology
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doi:10.1007/s00244-003-2179-6
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abstract::Persistent organochlorines such as DDT and its metabolites (DDTs), hexachlorocyclohexane isomers (HCHs), chlordane compounds (CHLs), hexachlorobenzene (HCB), and polychlorinated biphenyls (PCBs) were determined in whole-body homogenates of resident and migratory birds collected from South India. Organochlorine contami...
journal_title:Archives of environmental contamination and toxicology
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abstract::A remedial investigation/feasibility study (RI/FS) of the Calcasieu Estuary cooperative site was initiated in 1998. This site, which is located in the southwestern portion of Louisiana in the vicinity of Lake Charles, includes the portion of the estuary from the saltwater barrier on the Calcasieu River to Moss Lake. A...
journal_title:Archives of environmental contamination and toxicology
pub_type: 杂志文章
doi:10.1007/s00244-010-9636-9
更新日期:2011-07-01 00:00:00