G.A. Swanson
H.K. Nelson
Gary L. Krapu
1973
<div class="item-view-info enhanced-layout-view-info" data-qa="item-view-info"><div><div id="metadata-info-tab-contents" class="pan" aria-labelledby="metadata-info-tab"><div data-v-ca316676=""><div data-v-ca316676=""><div data-v-ca316676=""><div class="mtl mbxl" data-v-ca316676="" data-ajax="false"><div class="break-with-hyphens"><p>Livers of 42 pintail hens (<i>Anas acuta</i>) breeding in eastern North Dakota during the spring and early summer of 1969 and 1970 were analyzed for total mercury by the neutron activation technique. Mercury content on a wet weight basis ranged from 0.055 ppm to 9.512 ppm and averaged 0.888 ± 1.796 ppm (SD). Liver mercury levels of hens collected in early spring (prior to planting of crops) were significantly lower than those of hens taken late in the nesting season (<i>P</i> < 0.01). Mercury residues among prelaying, laying, and postlaying groups collected following the onset of spring planting did not differ significantly (<strong>P</strong> > 0.05). Albumen mercury residue was correlated with liver mercury content (r = 0.756, <i>P</i> < 0.05). Mercury content in livers of five wild juveniles averaged 0.123 ± 0.074 ppm.</p></div></div></div></div></div></div></div></div>
application/pdf
10.2307/3800131
en
Wiley
Mercury residues in pintails breeding in North Dakota
article