SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL EUPHAUSIA SUPERBA (Eleventh Symposium on Polar Biology)
Concentrations of heavy metals and their chemical forms were analyzed in the Antarctic krill (Euphausia superba) 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>F...
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ftnipr:oai:nipr.repo.nii.ac.jp:00005087 2023-05-15T13:49:03+02:00 SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL EUPHAUSIA SUPERBA (Eleventh Symposium on Polar Biology) ヤマモト ヨシユキ ホンダ カツヒサ エンドウ ヨシナリ タツカワ リョウ Yoshiyuki YAMAMOTO Katsuhisa HONDA Yoshinari ENDO Ryo TATSUKAWA 1990-03 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5087 http://id.nii.ac.jp/1291/00005087/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5087&item_no=1&attribute_id=18&file_no=1 en eng Proceeding Department of Environment Conservation, Faculty of Agriculture, Ehime University:(Present address)The Institute of Cetacean Research Department of Environment Conservation, Faculty of Agriculture, Ehime University:(Present address)Miura Institute of Research and Development Far Seas Fisheries Research Laboratory:(Present address)Laboratory of Oceanography, Faculty of Agriculture, Tohoku University Department of Environment Conservation, Faculty of Agriculture, Ehime University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5087 http://id.nii.ac.jp/1291/00005087/ AA10819561 Proceedings of the NIPR Symposium on Polar Biology, 3, 57-63(1990-03) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5087&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1990 ftnipr 2023-02-11T20:10:44Z Concentrations of heavy metals and their chemical forms were analyzed in the Antarctic krill (Euphausia superba) 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 IIIA. 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 metallothionein. We speculate that changes in amounts of Cu-binding proteins by physiological conditions might be important causes for the variations of Cu concentration between sexes and between maturity stages of the Antarctic krill. Report Antarc* Antarctic Antarctic Krill Euphausia superba Polar Biology Proceedings of the NIPR Symposium on Polar Biology Scotia Sea National Institute of Polar Research Repository, Japan Antarctic Scotia Sea The Antarctic |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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ftnipr |
language |
English |
description |
Concentrations of heavy metals and their chemical forms were analyzed in the Antarctic krill (Euphausia superba) 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 IIIA. 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 metallothionein. We speculate that changes in amounts of Cu-binding proteins by physiological conditions might be important causes for the variations of Cu concentration between sexes and between maturity stages of the Antarctic krill. |
format |
Report |
author |
ヤマモト ヨシユキ ホンダ カツヒサ エンドウ ヨシナリ タツカワ リョウ Yoshiyuki YAMAMOTO Katsuhisa HONDA Yoshinari ENDO Ryo TATSUKAWA |
spellingShingle |
ヤマモト ヨシユキ ホンダ カツヒサ エンドウ ヨシナリ タツカワ リョウ Yoshiyuki YAMAMOTO Katsuhisa HONDA Yoshinari ENDO Ryo TATSUKAWA SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL EUPHAUSIA SUPERBA (Eleventh Symposium on Polar Biology) |
author_facet |
ヤマモト ヨシユキ ホンダ カツヒサ エンドウ ヨシナリ タツカワ リョウ Yoshiyuki YAMAMOTO Katsuhisa HONDA Yoshinari ENDO Ryo TATSUKAWA |
author_sort |
ヤマモト ヨシユキ |
title |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL EUPHAUSIA SUPERBA (Eleventh Symposium on Polar Biology) |
title_short |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL EUPHAUSIA SUPERBA (Eleventh Symposium on Polar Biology) |
title_full |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL EUPHAUSIA SUPERBA (Eleventh Symposium on Polar Biology) |
title_fullStr |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL EUPHAUSIA SUPERBA (Eleventh Symposium on Polar Biology) |
title_full_unstemmed |
SEX- AND MATURITY-RELATED HEAVY METAL ACCUMULATIONS IN THE ANTARCTIC KRILL EUPHAUSIA SUPERBA (Eleventh Symposium on Polar Biology) |
title_sort |
sex- and maturity-related heavy metal accumulations in the antarctic krill euphausia superba (eleventh symposium on polar biology) |
publisher |
Proceeding |
publishDate |
1990 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5087 http://id.nii.ac.jp/1291/00005087/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5087&item_no=1&attribute_id=18&file_no=1 |
geographic |
Antarctic Scotia Sea The Antarctic |
geographic_facet |
Antarctic Scotia Sea The Antarctic |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Polar Biology Proceedings of the NIPR Symposium on Polar Biology Scotia Sea |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Polar Biology Proceedings of the NIPR Symposium on Polar Biology Scotia Sea |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5087 http://id.nii.ac.jp/1291/00005087/ AA10819561 Proceedings of the NIPR Symposium on Polar Biology, 3, 57-63(1990-03) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5087&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766250659099705344 |