The distribution of molybdenum in the tissues of wild ducks

The Mo contents and the relations between Mo and Cu or Cr contents were investigated in the organs of Japanese wild ducks (spotbill duck, pintail, wigeon, scaup and tufted duck). The highest Mo content in kidney and liver of the dabbling ducks were more than 30 microg g(-1) dry weight (microg g(-1)...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2002-07, Vol.77 (2), p.155-161
Main Authors: MOCHIZUKI, Mariko, SASAKI, Rei, YAMASHITA, Yuko, AKINAGA, Mayumi, ANAN, Nana, SASAKI, Sakura, HONDO, Ryo, UEDA, Fukiko
Format: Article
Language:English
Subjects:
Anas acuta
Anas americana
Anas poecilorhyncha
Anatidae
Animal, plant and microbial ecology
Animals
Animals, Wild - metabolism
Applied ecology
Aquatic birds
Aves
Aythya fuligula
Aythya marila
Biological and medical sciences
Chromium - pharmacokinetics
Contamination
Copper - pharmacokinetics
Ducks - metabolism
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on vertebrates
Environmental monitoring
Environmental Monitoring - methods
Female
Freshwater
Fundamental and applied biological sciences. Psychology
Kidney - chemistry
Kidney - metabolism
Liver - chemistry
Liver - metabolism
Male
Molybdenum
Molybdenum - analysis
Molybdenum - pharmacokinetics
Organ Specificity
Studies
Tissue Distribution
Wildfowl
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Summary:The Mo contents and the relations between Mo and Cu or Cr contents were investigated in the organs of Japanese wild ducks (spotbill duck, pintail, wigeon, scaup and tufted duck). The highest Mo content in kidney and liver of the dabbling ducks were more than 30 microg g(-1) dry weight (microg g(-1) d. wt.), though that of diving ducks were less than 11 microg g(-1) d. wt. The contents were lower in the ducks migrating within Japan, Eurasia and North America than those in the birds migrating between Japan and Eurasia. The contents of liver in all species were more than 50 and less than 5 microg g(-1) d. wt. for Cu and Cr, respectively. Significant correlations were found between Mo and both elements in pintail and scaup, and Mo and Cr in tufted duck. These results suggest that the contamination of wild ducks reflects the reproductive area, and not the collected area. Mo contents closely correlated with the Cu and/or Cr contaminations.
ISSN:0167-6369
1573-2959
DOI:10.1023/A:1015871802566