A preliminary study of trace metals and porphyrins in excreta of Gentoo penguins (Pygoscelis papua) at two locations of the Antarctic Peninsula
Even though concentrations of most chemical elements in Antarctic ecosystems are very low as compared to other world's areas, their increasing time trends, as a consequence of the strong population growth and industrial development in countries of the Southern Hemisphere, could be affecting som...
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Facultad de Ciencias Veterinarias, Universidad Austral de Chile
2012
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oai:scielo:S0301-732X20120003000162013-01-28A preliminary study of trace metals and porphyrins in excreta of Gentoo penguins (Pygoscelis papua) at two locations of the Antarctic PeninsulaCelis,JJara,SGonzález-Acuña,DBarra,REspejo,W heavy metals excrement bio-monitoring seabirds Antarctic polar region Even though concentrations of most chemical elements in Antarctic ecosystems are very low as compared to other world's areas, their increasing time trends, as a consequence of the strong population growth and industrial development in countries of the Southern Hemisphere, could be affecting some vulnerable endemic species such as penguins. Concentrations (dry weight) of arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) and porphyrins (copro-, uro- and proto-) were determined in feces of Gentoo penguins (Pygoscelis papua), collected at two locations of the Antarctic Peninsula (O'Higgins and Videla). We found higher (p< 0.05) levels of Hg in excreta of penguin colonies at O'Higgins (7.55 ± 1.28 μg g-1), whereas penguins at Videla showed the highest concentrations of Cd (1.68 ± 0.71 μg g-1). Gentoo penguins from O'Higgins site showed higher levels of copro- (1.81 ± 0.61 nmol g-1), uro- (1.74 ± 0.72 nmol g-1) and protoporphyrins (1.24 ± 0.46 nmol g-1), directly related to higher levels of Hg and Pb measured. These findings imply that some Gentoo penguin colonies of the Antarctic Peninsula are likely to develop some biochemical effects through trace metal contamination at some level. These preliminary results raise concerns about anthropogenic pollutants in Antarctica.info:eu-repo/semantics/openAccessFacultad de Ciencias Veterinarias, Universidad Austral de ChileArchivos de medicina veterinaria v.44 n.3 20122012-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0301-732X2012000300016en10.4067/S0301-732X2012000300016 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
heavy metals excrement bio-monitoring seabirds Antarctic polar region |
| spellingShingle |
heavy metals excrement bio-monitoring seabirds Antarctic polar region Celis,J Jara,S González-Acuña,D Barra,R Espejo,W A preliminary study of trace metals and porphyrins in excreta of Gentoo penguins (Pygoscelis papua) at two locations of the Antarctic Peninsula |
| description |
Even though concentrations of most chemical elements in Antarctic ecosystems are very low as compared to other world's areas, their increasing time trends, as a consequence of the strong population growth and industrial development in countries of the Southern Hemisphere, could be affecting some vulnerable endemic species such as penguins. Concentrations (dry weight) of arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) and porphyrins (copro-, uro- and proto-) were determined in feces of Gentoo penguins (Pygoscelis papua), collected at two locations of the Antarctic Peninsula (O'Higgins and Videla). We found higher (p< 0.05) levels of Hg in excreta of penguin colonies at O'Higgins (7.55 ± 1.28 μg g-1), whereas penguins at Videla showed the highest concentrations of Cd (1.68 ± 0.71 μg g-1). Gentoo penguins from O'Higgins site showed higher levels of copro- (1.81 ± 0.61 nmol g-1), uro- (1.74 ± 0.72 nmol g-1) and protoporphyrins (1.24 ± 0.46 nmol g-1), directly related to higher levels of Hg and Pb measured. These findings imply that some Gentoo penguin colonies of the Antarctic Peninsula are likely to develop some biochemical effects through trace metal contamination at some level. These preliminary results raise concerns about anthropogenic pollutants in Antarctica. |
| author |
Celis,J Jara,S González-Acuña,D Barra,R Espejo,W |
| author_facet |
Celis,J Jara,S González-Acuña,D Barra,R Espejo,W |
| author_sort |
Celis,J |
| title |
A preliminary study of trace metals and porphyrins in excreta of Gentoo penguins (Pygoscelis papua) at two locations of the Antarctic Peninsula |
| title_short |
A preliminary study of trace metals and porphyrins in excreta of Gentoo penguins (Pygoscelis papua) at two locations of the Antarctic Peninsula |
| title_full |
A preliminary study of trace metals and porphyrins in excreta of Gentoo penguins (Pygoscelis papua) at two locations of the Antarctic Peninsula |
| title_fullStr |
A preliminary study of trace metals and porphyrins in excreta of Gentoo penguins (Pygoscelis papua) at two locations of the Antarctic Peninsula |
| title_full_unstemmed |
A preliminary study of trace metals and porphyrins in excreta of Gentoo penguins (Pygoscelis papua) at two locations of the Antarctic Peninsula |
| title_sort |
preliminary study of trace metals and porphyrins in excreta of gentoo penguins (pygoscelis papua) at two locations of the antarctic peninsula |
| publisher |
Facultad de Ciencias Veterinarias, Universidad Austral de Chile |
| publishDate |
2012 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0301-732X2012000300016 |
| work_keys_str_mv |
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