Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale
302 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2000. Inorganic Hg was localized through autometallography in beluga hepatic and renal light microscopic sections. Metal grains occurred at high densities in kidney cortical tubular epithelium, with lower densities in medullary tubul...
Main Author: | |
---|---|
Other Authors: | |
Format: | Text |
Language: | unknown |
Published: |
2000
|
Subjects: | |
Online Access: | http://hdl.handle.net/2142/87145 |
id |
ftunivillidea:oai:www.ideals.illinois.edu:2142/87145 |
---|---|
record_format |
openpolar |
spelling |
ftunivillidea:oai:www.ideals.illinois.edu:2142/87145 2023-05-15T15:04:00+02:00 Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale Woshner, Victoria M. Val R. Beasley 2000 http://hdl.handle.net/2142/87145 unknown http://hdl.handle.net/2142/87145 (MiAaPQ)AAI9971223 Environmental Sciences text 2000 ftunivillidea 2016-03-19T23:52:21Z 302 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2000. Inorganic Hg was localized through autometallography in beluga hepatic and renal light microscopic sections. Metal grains occurred at high densities in kidney cortical tubular epithelium, with lower densities in medullary tubular epithelium. In liver, metal grain deposition showed marked zonation, accumulating in periportal regions of whales with lower tissue Hg. In belugas with higher hepatic Hg, metal grains were most abundant periportally, but also found pericentrally and midzonally. Metal grains concentrated in stellate macrophages, with much lower numbers in hepatocytic cytoplasm. Staining intensities correlated with tissue concentrations of inorganic, organic, and total Hg. Although hepatic lipofuscin and metal grains were sometimes co-localized, they more often were not. Because marked lipofuscin deposition occurs independent of Hg, causality between hepatic Hg concentration, lipofuscin deposition, and hepatic lesions cannot be inferred. Text Arctic Beluga Beluga whale Beluga* inuit Alaska University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship) Arctic |
institution |
Open Polar |
collection |
University of Illinois at Urbana-Champaign: IDEALS (Illinois Digital Environment for Access to Learning and Scholarship) |
op_collection_id |
ftunivillidea |
language |
unknown |
topic |
Environmental Sciences |
spellingShingle |
Environmental Sciences Woshner, Victoria M. Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale |
topic_facet |
Environmental Sciences |
description |
302 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2000. Inorganic Hg was localized through autometallography in beluga hepatic and renal light microscopic sections. Metal grains occurred at high densities in kidney cortical tubular epithelium, with lower densities in medullary tubular epithelium. In liver, metal grain deposition showed marked zonation, accumulating in periportal regions of whales with lower tissue Hg. In belugas with higher hepatic Hg, metal grains were most abundant periportally, but also found pericentrally and midzonally. Metal grains concentrated in stellate macrophages, with much lower numbers in hepatocytic cytoplasm. Staining intensities correlated with tissue concentrations of inorganic, organic, and total Hg. Although hepatic lipofuscin and metal grains were sometimes co-localized, they more often were not. Because marked lipofuscin deposition occurs independent of Hg, causality between hepatic Hg concentration, lipofuscin deposition, and hepatic lesions cannot be inferred. |
author2 |
Val R. Beasley |
format |
Text |
author |
Woshner, Victoria M. |
author_facet |
Woshner, Victoria M. |
author_sort |
Woshner, Victoria M. |
title |
Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale |
title_short |
Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale |
title_full |
Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale |
title_fullStr |
Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale |
title_full_unstemmed |
Concentrations and Interactions of Selected Elements in Tissues of Four Marine Mammal Species Harvested by Inuit Hunters in Arctic Alaska, With an Intensive Histologic Assessment, Emphasizing the Beluga Whale |
title_sort |
concentrations and interactions of selected elements in tissues of four marine mammal species harvested by inuit hunters in arctic alaska, with an intensive histologic assessment, emphasizing the beluga whale |
publishDate |
2000 |
url |
http://hdl.handle.net/2142/87145 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Beluga Beluga whale Beluga* inuit Alaska |
genre_facet |
Arctic Beluga Beluga whale Beluga* inuit Alaska |
op_relation |
http://hdl.handle.net/2142/87145 (MiAaPQ)AAI9971223 |
_version_ |
1766335836214788096 |