{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T09:19:25Z","timestamp":1773825565592,"version":"3.50.1"},"reference-count":38,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[2007,5,1]],"date-time":"2007-05-01T00:00:00Z","timestamp":1177977600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"},{"start":{"date-parts":[[2009,12,9]],"date-time":"2009-12-09T00:00:00Z","timestamp":1260316800000},"content-version":"vor","delay-in-days":953,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["setac.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2007,5,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>We determined the distribution and accumulation of Hg in tissues of common loon (Gavia immer) chicks maintained for up to 15 weeks on either a control diet with no added methylmercury chloride (MeHgCl) or one containing either 0.4 or 1.2 \u03bcg Hg (as MeHgCl)\/g wet-weight food. Total Hg and MeHg tissue concentrations were strongly positively correlated (r2 &amp;gt; 0.95) with the amount of Hg delivered to individual chicks throughout the course of the experiment. The pattern of differential Hg concentration in internal tissues was consistent within each treatment: Liver &amp;gt; kidney &amp;gt; muscle &amp;gt; carcass &amp;gt; brain. Feather Hg concentrations were consistently higher than those of internal tissues and represented an important route of Hg elimination. Feather mass accounted for 4.3% \u00b1 0.1% (average \u00b1 standard error) of body mass, yet 27.3% \u00b1 2.6% of total Hg intake was excreted into feathers. Our calculations indicate that 26.7% \u00b1 4.9% of ingested Hg was not accounted for and, thus, either was never absorbed or was absorbed and subsequently eliminated in feces. With the additional excretion into feathers, 54% of ingested Hg was excreted. Demethylation was evident in the liver at all treatment levels and in the kidneys of chicks dosed at 1.2 \u03bcg Hg\/g. Mercury concentrations were strongly positively correlated (r2 \u2265 0.95) among internal tissues and with blood Hg concentration. Mercury concentrations of secondary feathers were moderately correlated (r2 = 0.82\u20130.93) with internal tissues. We supply regression models that may be used to provide perspective and a useful means of interpreting the variety of measures of Hg exposure reported in the literature.<\/jats:p>","DOI":"10.1897\/06-193r.1","type":"journal-article","created":{"date-parts":[[2007,4,17]],"date-time":"2007-04-17T11:17:36Z","timestamp":1176808656000},"page":"1047-1055","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":65,"title":["Distribution and accumulation of mercury in tissues of captive-reared common loon (<i>Gavia immer<\/i>) chicks"],"prefix":"10.1093","volume":"26","author":[{"given":"Kevin P.","family":"Kenow","sequence":"first","affiliation":[{"name":"U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, Wisconsin 54603"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael W.","family":"Meyer","sequence":"additional","affiliation":[{"name":"Wisconsin Department of Natural Resources, 107 Sutliff Avenue, Rhinelander, Wisconsin 54501, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Randy K.","family":"Hines","sequence":"additional","affiliation":[{"name":"U.S. Geological Survey, Upper Midwest Environmental Sciences Center, 2630 Fanta Reed Road, La Crosse, Wisconsin 54603"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William H.","family":"Karasov","sequence":"additional","affiliation":[{"name":"Department of Wildlife Ecology, 1630 Linden Drive, University of Wisconsin\u2013Madison, Madison, Wisconsin 53706, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2007,5,1]]},"reference":[{"key":"2025010317054288900_bib1","first-page":"645","article-title":"Metal contamination of fish in low-pH lakes and potential implications for piscivorous wildlife","volume":"52","author":"Wiener","year":"1987","journal-title":"Trans N Am Wildl Nat Res 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