HEAVY METAL ACCUMULATION IN ANTARCTIC KRILL EUPHAUSIA SUPERBA (Ninth Symposium on Polar Biology)
Seventy-six samples of the Antarctic krill were collected from the stomach contents of the southern minke whales hauled up on the Japanese factory ship during her cruises in 1984/85 and 1985/86, and were analyzed for Cu, Zn, Fe, Mn, Ni, Cd, Pb, Co, and Hg. The mean concentrations of metals in the An...
| Main Authors: | , , , , , |
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| Format: | Report |
| Language: | English |
| Published: |
Proceeding
1987
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| Subjects: | |
| Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5029 http://id.nii.ac.jp/1291/00005029/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5029&item_no=1&attribute_id=18&file_no=1 |
| Summary: | Seventy-six samples of the Antarctic krill were collected from the stomach contents of the southern minke whales hauled up on the Japanese factory ship during her cruises in 1984/85 and 1985/86, and were analyzed for Cu, Zn, Fe, Mn, Ni, Cd, Pb, Co, and Hg. The mean concentrations of metals in the Antarctic krill were Cu-12.7, Zn-9.6, Fe-3.6, Mn-0.71, Ni-0.45, Cd-0.43, Pb-0.04, Co-0.02, and Hg-0.008 μg/wet g. Although no significant difference in concentrations of the metals with size and location was found, metal concentrations varied seasonally: High concentrations of Fe, Mn, Zn, Pb, and Hg were observed during January-February, 1985/86, and during January, 1984/85. The concentrations of Cu, Cd, Ni, and Co were higher in January to mid-February, 1986, and during January, 1985, and thereafter their concentration levels except for Cu decreased. |
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