| ecological aspects of helminth fauna of magellanic penguins, spheniscus magellanicus (aves: spheniscidae), from the northern coast of the state of são paulo, brazil. | the aim of the present study was to evaluate the helminth fauna found in the magellanic penguin, spheniscus magellanicus, relating parasite population and community ecological parameters to life aspects of the host species. the study involved 237 specimens of s. magellanicus taken from the northern shore of the state of são paulo (23° 46' s, 45° 57' w) and southern shore of the state of rio de janeiro (23° 02' s, 44° 13' w), brazil. the following helminth fauna were found: the nematode contracae ... | 2013 | 23644789 |
| levels of cadmium, mercury, and lead in magellanic penguins (spheniscus magellanicus) stranded on the brazilian coast. | cadmium (cd), mercury (hg), and lead (pb) were determined in samples of liver and breast muscles of first-year magellanic penguins (spheniscus magellanicus), from two different areas on the brazilian coast, 35 on the rio de janeiro coast and 12 on the rio grande do sul coast. in both areas, cd concentrations in muscle samples were <0.025 microg/g. however, the cd and hg concentrations found in liver and hg concentrations found in muscle showed a significant difference between the two regions. th ... | 2010 | 19582498 |
| marine debris ingestion by magellanic penguins, spheniscus magellanicus (aves: sphenisciformes), from the brazilian coastal zone. | magellanic penguins (spheniscus magellanicus) are non-breeding winter visitors to the brazilian coast. in 2008 and 2010, plastic items and other marine debris were found in the stomachs and intestines of 15% of 175 dead penguins collected in the lagos region of the state of rio de janeiro. one bird had its stomach perforated by a plastic straw, which may have caused its death. there are few records of penguins ingesting plastic litter, but previous studies have found similar levels of debris ing ... | 2011 | 21864861 |
| molecular sexing of unusually large numbers of spheniscus magellanicus (spheniscidae) washed ashore along the brazilian coast in 2008. | there have been few studies on magellanic penguins (spheniscus magellanicus). in 2008, these penguins washed ashore along the brazilian coast in unusually high numbers, some reaching as far as northeast brazil. as magellanic penguins show little sexual dimorphism, sex determination by morphological features is not accurate. here, we tested a molecular procedure for sexing specimens of s. magellanicus washed ashore along the coasts of sergipe, rio de janeiro and rio grande do sul in 2008, compari ... | 2011 | 22180075 |
| persistent organic pollutants in juvenile magellan penguins (spheniscus magellanicus) found on the northern shore of the state of são paulo and southern shore of the state of rio de janeiro, brazil. | in the present study, persistent organic pollutants (pops) were determined in 25 livers from magellanic penguins, spheniscus magellanicus, found on the state of são paulo and rio de janeiro (brazil). the following concentrations of pops (wet weight) were found: ∑ pcbs: 18.9-775.8 ng g(-1); ∑ ddts: 2.3-275 ng g(-1); and ∑ hchs: 1.0-11.8 ng g(-1). among the pcbs, there was a predominance of hexachlorobiphenyls (138 and 153) and heptachlorobiphenyls (180 and 187). among the organochlorines, ddt pre ... | 2012 | 22910330 |
| persistent organic pollutants in juvenile magellanic penguins (spheniscus magellanicus) in south america. | magellanic penguins, spheniscus magellanicus, are the most abundant penguins living in temperate regions of south america and are good indicators of environmental pollution in the region. persistent organic pollutants (pops) were detected in the liver of magellanic penguins found debilitated or dead on the beaches of brazil (states of rio de janeiro, sao paulo, santa catarina and rio grande do sul) between 2008 and 2012 as well as in uruguay and chile in 2011. polychlorinated biphenyls (pcbs) we ... | 2016 | 26881336 |