SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL
Abstract: Concentrations of heavy metals and their chemical forms were analyzed in the Antarctic krill (Euphausia superha) collected from the Scotia Sea in December, 1987, and the results were discussed in relation to sex and maturity stages. The whole body metal concentrations were in the order of...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.612.2505 2023-05-15T13:32:04+02:00 SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL Euphausia Superba Ryo Tatsukawa The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.612.2505 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1990-Yamamoto.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.612.2505 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1990-Yamamoto.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/1990-Yamamoto.pdf text ftciteseerx 2016-01-08T14:34:05Z Abstract: Concentrations of heavy metals and their chemical forms were analyzed in the Antarctic krill (Euphausia superha) collected from the Scotia Sea in December, 1987, and the results were discussed in relation to sex and maturity stages. The whole body metal concentrations were in the order of Zn=Cu>Fe> Mn>Ni>Cd. The values of Fe, Mn and Zn were higher in females than in males. The values of Cu, Fe, Ni and Cd in adult females were highest in stage 11IA. Also, the values for Cu was higher in juveniles than in adults. Concentrations of the metals were generally higher in cephalothorax than in abdomen. In particular, a majority of Cu burden in the cephalothorax existed as Cu-binding proteins, which were likely to be mainly hemocyanin and metallothio-nein. We speculate that changes in amounts of Cu-binding proteins by physio-logical conditions might be important causes for the variations of Cu concentration between sexes and between maturity stages of the Antarctic krill. 1. Text Antarc* Antarctic Antarctic Krill Scotia Sea Unknown Antarctic Scotia Sea The Antarctic |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
Abstract: Concentrations of heavy metals and their chemical forms were analyzed in the Antarctic krill (Euphausia superha) collected from the Scotia Sea in December, 1987, and the results were discussed in relation to sex and maturity stages. The whole body metal concentrations were in the order of Zn=Cu>Fe> Mn>Ni>Cd. The values of Fe, Mn and Zn were higher in females than in males. The values of Cu, Fe, Ni and Cd in adult females were highest in stage 11IA. Also, the values for Cu was higher in juveniles than in adults. Concentrations of the metals were generally higher in cephalothorax than in abdomen. In particular, a majority of Cu burden in the cephalothorax existed as Cu-binding proteins, which were likely to be mainly hemocyanin and metallothio-nein. We speculate that changes in amounts of Cu-binding proteins by physio-logical conditions might be important causes for the variations of Cu concentration between sexes and between maturity stages of the Antarctic krill. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Euphausia Superba Ryo Tatsukawa |
spellingShingle |
Euphausia Superba Ryo Tatsukawa SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL |
author_facet |
Euphausia Superba Ryo Tatsukawa |
author_sort |
Euphausia Superba |
title |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL |
title_short |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL |
title_full |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL |
title_fullStr |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL |
title_full_unstemmed |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL |
title_sort |
sex- and maturity-related heavy metal accumulations in the antarctic krill |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.612.2505 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1990-Yamamoto.pdf |
geographic |
Antarctic Scotia Sea The Antarctic |
geographic_facet |
Antarctic Scotia Sea The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Scotia Sea |
genre_facet |
Antarc* Antarctic Antarctic Krill Scotia Sea |
op_source |
http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1990-Yamamoto.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.612.2505 http://polaris.nipr.ac.jp/~penguin/polarbiosci/issues/pdf/1990-Yamamoto.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766023887962767360 |