E3S Web of Conferences
Volume 1, 2013Proceedings of the 16th International Conference on Heavy Metals in the Environment
|Number of page(s)||3|
|Section||Biomonitoring / Exposure I|
|Published online||23 April 2013|
Effect of diet on the capacity to remove mercury from the body of a penguin (Spheniscus demersus) living in the ZOO
1 Institute of Oceanography, Department of Marine Chemistry and Environmental Protection, University of Gdansk Al. M.Piłsudskiego 46, 81-378 Gdynia, Poland
2 Municipal Zoological Garden, Karwieńska 3, 80-001 Gdańsk, Poland
Birds due to its position in the trophic chain are good monitors of the marine environment in terms of mercury contamination. For the proper interpretation of results it is necessary to know both the processes of accumulation of this metal in their bodies and processes of elimination. Research involving the Penguin (Spheniscus demersus) living in a ZOO has identified the relationship between diet and the amount of mercury removed from the penguin body in guano, feathers, and in the case of females with eggs. The research was conducted in years 2009-2011. Total mercury was determined in elements responsible for detoxification and in the diet of penguins. Mercury concentration was determined by atomic absorption spectrophotometry with AMA-254 automatic mercury analyzer. The highest average mercury concentrations were determined in feathers: 1781.12 ngHg•g−1d.w., lower in eggs: 950.88 ngHg•g−1 dry weight (d.w.). and in a guano: 139.18 ngHg•g−1. In food, herrings caught in the southern Baltic, Hg concentrations were relatively low with averaged value 31.81 ngHg•g−1d.w.
Key words: total mercury / Spheniscus demersus / detoxification / feathers / guano / egg
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.