Mercury concentrations in primary feathers reflect pollutant exposure in discrete non-breeding grounds used by Short-tailed Shearwaters

We measured mercury concentrations ([Hg]) and nitrogen stable isotope ratios (δ15N) in the primary feathers of Short-tailed Shearwaters (Puffinus tenuirostris) that were tracked year-round. The [Hg] were highest in 14 birds that used the Okhotsk and northern Japan Seas during the non-breeding period (2.5 ± 1.4 μg/g), lowest in nine birds that used the eastern Bering Sea (0.8 ± 0.2 μg/g), and intermediate in five birds that used both regions (1.0 ± 0.5 μg/g), with no effects of δ15N. The results illustrate that samples from seabirds can provide a useful means of monitoring pollution at a large spatial scale.

Details

Publication status:
Published
Author(s):
Authors: Watanuki, Yutaka, Yamamoto, Takashi, Yamashita, Ai, Ishii, Chihiro, Ikenaka, Yoshinori, Nakayama, Shouta M. M., Ishizuka, Mayumi, Suzuki, Yuya, Niizuma, Yasuaki, Meathrel, C. E., Phillips, R. A.

On this site: Richard Phillips
Date:
1 July, 2015
Journal/Source:
Journal of Ornithology / 156
Page(s):
847-850
Digital Object Identifier (DOI):
https://doi.org/10.1007/s10336-015-1205-6