Incubation stage and polychlorinated biphenyl (PCB) congener patterns in an altricial and precocial bird species

Environmental Pollution
By: , and 

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Abstract

The composition of polychlorinated biphenyl (PCB) congeners was compared between non-incubated and embryonated eggs of tree swallows (Tachycineta bicolor) and little terns (Sterna albifrons) to determine if measurable changes in PCB congeners occurred during the embryonic period. There was no indication of changes in PCB congener patterns over the incubation period in tree swallows in 1999 and 2000 at a site with very high PCB exposure or a site with more modest PCB exposure. Additionally, congeners known to be either quickly metabolized or conserved based on experimental studies did not generally respond as predicted. Similarly, PCB congener patterns in eggs of little terns from Bottsand, Schleswig-Holstein, Germany, did not differ between non-incubated and embryonated eggs. The results from both species suggest that the stage of incubation is not an important consideration when evaluating PCB congener patterns; comparisons and assessments can be made with eggs collected at all stages of incubation.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Incubation stage and polychlorinated biphenyl (PCB) congener patterns in an altricial and precocial bird species
Series title Environmental Pollution
DOI 10.1016/j.envpol.2014.08.010
Volume 195
Year Published 2014
Language English
Publisher Elsevier
Contributing office(s) Upper Midwest Environmental Sciences Center, Contaminant Biology Program
Description 6 p.
First page 109
Last page 114