(Table 1) Lipid and organochlorine content in blood of common eiders (Somateria mollissima) in Svalbard
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PANGAEA
2010
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| author | Bustnes, Jan Ove Moe, Børge Herzke, Dorte Hanssen, Sveinn Are Nordstad, Tore Sagerup, Kjetil Gabrielsen, Geir W Borgå, Katrine |
| author_facet | Bustnes, Jan Ove Moe, Børge Herzke, Dorte Hanssen, Sveinn Are Nordstad, Tore Sagerup, Kjetil Gabrielsen, Geir W Borgå, Katrine |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Female common eiders (Somateria mollissima) starve during the nesting stage and may lose 30-45% of their initial body mass, mostly through lipid mobilization. In this study, the effects of fasting on the blood concentrations of three lipid-soluble organochlorines (OCs: polychlorinated biphenyl [PCB]-153; 1-dichloro-2,2-bis (p-chlorophenyl) ethylene [p,p'-DDE]; and hexachlorobenzene [HCB]) were examined in eiders breeding in the high Arctic. Blood samples were taken from females (n = 47) at day 5 and day 20 of the incubation period. The mean wet weight concentrations of PCB-153 and p,p'-DDE increased strongly between day 5 and day 20 (3.6 and 8.2-fold, respectively), while HCB increased less (1.7-fold). There was a strong negative association between daily increase in PCB-153 and clutch size, and a weaker relationship for p,p'-DDE, suggesting that maternal transfer to the eggs is a significant pathway of elimination of OCs in eiders. Moreover, poor body condition (body mass controlled for body size) late in the incubation period was associated with strong daily increase of both p,p'-DDE and PCB-153, which may suggest that the release of these compounds increases when lipid reserves become depleted. For HCB, the increase was mainly associated with increase in blood lipid concentrations, and weakly to the amount of burned lipids. The causes for the differences between the compounds are, however, poorly understood. Although the absolute levels of OCs in eiders were relatively low, their rapid build-up during incubation is worrying as it coincides with poor body condition and weakened immune systems. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_808093 |
| institution | PANGAEA |
| language | en |
| publishDate | 2010 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Lipid and organochlorine content in blood of common eiders (Somateria mollissima) in Svalbard Bustnes, Jan Ove Moe, Børge Herzke, Dorte Hanssen, Sveinn Are Nordstad, Tore Sagerup, Kjetil Gabrielsen, Geir W Borgå, Katrine BIO; Biology; Hexachlorobenzene; International Polar Year (2007-2008); IPY; Kongsfjorden, Spitsbergen, Arctic; Lipids; para,para-Dichlorodiphenyldichloroethylene; Polychlorinated biphenyl 153; Sample type; Sampling date; Somateria mollissima, mass; Standard deviation; Storholmen Female common eiders (Somateria mollissima) starve during the nesting stage and may lose 30-45% of their initial body mass, mostly through lipid mobilization. In this study, the effects of fasting on the blood concentrations of three lipid-soluble organochlorines (OCs: polychlorinated biphenyl [PCB]-153; 1-dichloro-2,2-bis (p-chlorophenyl) ethylene [p,p'-DDE]; and hexachlorobenzene [HCB]) were examined in eiders breeding in the high Arctic. Blood samples were taken from females (n = 47) at day 5 and day 20 of the incubation period. The mean wet weight concentrations of PCB-153 and p,p'-DDE increased strongly between day 5 and day 20 (3.6 and 8.2-fold, respectively), while HCB increased less (1.7-fold). There was a strong negative association between daily increase in PCB-153 and clutch size, and a weaker relationship for p,p'-DDE, suggesting that maternal transfer to the eggs is a significant pathway of elimination of OCs in eiders. Moreover, poor body condition (body mass controlled for body size) late in the incubation period was associated with strong daily increase of both p,p'-DDE and PCB-153, which may suggest that the release of these compounds increases when lipid reserves become depleted. For HCB, the increase was mainly associated with increase in blood lipid concentrations, and weakly to the amount of burned lipids. The causes for the differences between the compounds are, however, poorly understood. Although the absolute levels of OCs in eiders were relatively low, their rapid build-up during incubation is worrying as it coincides with poor body condition and weakened immune systems. |
| title | (Table 1) Lipid and organochlorine content in blood of common eiders (Somateria mollissima) in Svalbard |
| topic | BIO; Biology; Hexachlorobenzene; International Polar Year (2007-2008); IPY; Kongsfjorden, Spitsbergen, Arctic; Lipids; para,para-Dichlorodiphenyldichloroethylene; Polychlorinated biphenyl 153; Sample type; Sampling date; Somateria mollissima, mass; Standard deviation; Storholmen |
| url | https://doi.org/10.1594/PANGAEA.808093 |