DISTRIBUTION OF HEAVY METALS IN ANTARCTIC MARINE ECOSYSTEM
Abstract: Heavy metal concentrations in Antarctic surface seawaters and some marine organisms were determined, and their distributions and bioaccumulations were discussed in comparison with other marine ecosystems. Locational difference of the heavy metal concentrations in Antarctic seawater was neg...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.314.5783 2023-05-15T13:57:03+02:00 DISTRIBUTION OF HEAVY METALS IN ANTARCTIC MARINE ECOSYSTEM Katsuhisa Honda Yoshiyuki Yamamoto Ryo Tatsukawa The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.314.5783 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1987-Honda.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.314.5783 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1987-Honda.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1987-Honda.pdf text ftciteseerx 2016-09-04T00:04:02Z Abstract: Heavy metal concentrations in Antarctic surface seawaters and some marine organisms were determined, and their distributions and bioaccumulations were discussed in comparison with other marine ecosystems. Locational difference of the heavy metal concentrations in Antarctic seawater was negligible, and their concentrations were in the order of Zn- Fe> Mn> Cu>Pb- Ni> Cd> Hg. When compared to the western North Pacific, Japan Sea and Bering Sea, the concentrations of Fe, Zn, and Hg in Antarctic seawater were relatively low, which provides evidence that atmospheric transport of these metals from continents, either from natural or anthropogenic sources to the Antarctic water is much less. The Cd level was relatively high compared with those in the western North Pacific and Japan Sea waters, which might be due to the upwelling of Cd-enriched deep waters to the surface. In general, the heavy metal concentrations in Antarctic marine organisms were affected by the metal concentrations in the seawater. Also, it was found that bioaccumulations of metals in Antarctic marine ecosystem were characterized by a high accumulation of Cd and low accumulation of Hg, based on the short food chain with krill as key species, and also by a low accumulation of Fe in fishes as an adaptation to the cold water condition. 1. Text Antarc* Antarctic Bering Sea Unknown Antarctic Bering Sea Pacific The Antarctic |
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English |
description |
Abstract: Heavy metal concentrations in Antarctic surface seawaters and some marine organisms were determined, and their distributions and bioaccumulations were discussed in comparison with other marine ecosystems. Locational difference of the heavy metal concentrations in Antarctic seawater was negligible, and their concentrations were in the order of Zn- Fe> Mn> Cu>Pb- Ni> Cd> Hg. When compared to the western North Pacific, Japan Sea and Bering Sea, the concentrations of Fe, Zn, and Hg in Antarctic seawater were relatively low, which provides evidence that atmospheric transport of these metals from continents, either from natural or anthropogenic sources to the Antarctic water is much less. The Cd level was relatively high compared with those in the western North Pacific and Japan Sea waters, which might be due to the upwelling of Cd-enriched deep waters to the surface. In general, the heavy metal concentrations in Antarctic marine organisms were affected by the metal concentrations in the seawater. Also, it was found that bioaccumulations of metals in Antarctic marine ecosystem were characterized by a high accumulation of Cd and low accumulation of Hg, based on the short food chain with krill as key species, and also by a low accumulation of Fe in fishes as an adaptation to the cold water condition. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Katsuhisa Honda Yoshiyuki Yamamoto Ryo Tatsukawa |
spellingShingle |
Katsuhisa Honda Yoshiyuki Yamamoto Ryo Tatsukawa DISTRIBUTION OF HEAVY METALS IN ANTARCTIC MARINE ECOSYSTEM |
author_facet |
Katsuhisa Honda Yoshiyuki Yamamoto Ryo Tatsukawa |
author_sort |
Katsuhisa Honda |
title |
DISTRIBUTION OF HEAVY METALS IN ANTARCTIC MARINE ECOSYSTEM |
title_short |
DISTRIBUTION OF HEAVY METALS IN ANTARCTIC MARINE ECOSYSTEM |
title_full |
DISTRIBUTION OF HEAVY METALS IN ANTARCTIC MARINE ECOSYSTEM |
title_fullStr |
DISTRIBUTION OF HEAVY METALS IN ANTARCTIC MARINE ECOSYSTEM |
title_full_unstemmed |
DISTRIBUTION OF HEAVY METALS IN ANTARCTIC MARINE ECOSYSTEM |
title_sort |
distribution of heavy metals in antarctic marine ecosystem |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.314.5783 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1987-Honda.pdf |
geographic |
Antarctic Bering Sea Pacific The Antarctic |
geographic_facet |
Antarctic Bering Sea Pacific The Antarctic |
genre |
Antarc* Antarctic Bering Sea |
genre_facet |
Antarc* Antarctic Bering Sea |
op_source |
http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1987-Honda.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.314.5783 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1987-Honda.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766264650287022080 |