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231224s2011 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-011-0743-9
|2 doi
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|a pubmed24n0701.xml
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Kenow, Kevin P
|e verfasserin
|4 aut
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| 245 |
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|a Effects of injected methylmercury on the hatching of common loon (Gavia immer) eggs
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 17.01.2012
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|a Date Revised 20.10.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a To determine the level of in ovo methylmercury (MeHg) exposure that results in detrimental effects on fitness and survival of loon embryos and hatched chicks, we conducted a field study in which we injected eggs with various doses of MeHg on day 4 of incubation. Eggs were collected following about 23 days of natural incubation and artificially incubated to observe hatching. Reduced embryo survival was evident in eggs injected at a rate of ≥1.3 μg Hg/g wet-mass. When maternally deposited Hg and injected Hg were considered together, the median lethal concentration of Hg (LC(50)) was estimated to be 1.78 μg Hg/g wet-mass. Organ mass patterns from eggs of chicks injected at a rate of 2.9 μg Hg/g differed from that of controls and chicks from the 0.5 μg Hg/g treatment, largely related to a negative relation between yolk sac mass and egg mercury concentration. Chicks from eggs in the 2.9 μg Hg/g treatment were also less responsive to a frightening stimulus than controls and chicks from the 0.5 μg Hg/g treatment. We also found that the length of incubation period increased with increasing egg mercury concentration. Tissue Hg concentrations were strongly associated (r(2) ≥ 0.80) with egg Hg concentration
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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7 |
|a Methylmercury Compounds
|2 NLM
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| 650 |
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7 |
|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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7 |
|a Mercury
|2 NLM
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| 650 |
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7 |
|a FXS1BY2PGL
|2 NLM
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| 700 |
1 |
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|a Meyer, Michael W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rossmann, Ronald
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gendron-Fitzpatrick, Annette
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gray, Brian R
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 20(2011), 7 vom: 07. Okt., Seite 1684-93
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
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|g volume:20
|g year:2011
|g number:7
|g day:07
|g month:10
|g pages:1684-93
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|u http://dx.doi.org/10.1007/s10646-011-0743-9
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