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Current situation regarding lead exposure in birds in Japan (2015-2018); lead exposure is still occurring

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Title: Current situation regarding lead exposure in birds in Japan (2015-2018); lead exposure is still occurring
Authors: Ishii, Chihiro Browse this author
Ikenaka, Yoshinori Browse this author
Nakayama, Shouta Mm Browse this author
Kuritani, Takeshi Browse this author
Nakagawa, Mitsuhiro Browse this author
Saito, Keisuke Browse this author
Watanabe, Yukiko Browse this author
Ogasawara, Kohei Browse this author
Onuma, Manabu Browse this author
Haga, Atsushi Browse this author
Ishizuka, Mayumi Browse this author →KAKEN DB
Keywords: Pb ammunition
Pb exposure
Pb isotope ratios
water bird
Issue Date: Aug-2020
Publisher: 公益社団法人 日本獣医学会 (The Japanese Society of Veterinary Science)
Journal Title: Journal of veterinary medical science
Volume: 82
Issue: 8
Start Page: 1118
End Page: 1123
Publisher DOI: 10.1292/jvms.20-0104
Abstract: Birds of a number of species have died as a result of lead (Pb) poisoning, including many Steller's sea eagles (Haliaeetus pelagicus) and white-tailed sea eagles (Haliaeetus albicilla) in Hokkaido, the northernmost island of Japan. To address this issue, the use of any type of Pb ammunition for hunting of large animals was prohibited in Hokkaido in 2004. However, Pb poisoning is still being reported in this area, and there are few regulations regarding the use of Pb ammunition in other parts of Japan, where it has been reported that eagles and water birds have been exposed to Pb. This study was performed to accurately determine the current level of Pb exposure of birds found dead in the field or dead in the wild bird centers in Japan (June 2015-May 2018) and to identify the sources of Pb. Pb exposure was found to still be occurring in raptors and water birds in various parts of Japan. Twenty-six point five % and 5.9% of the recorded deaths of Steller's sea eagles and white-tailed sea eagles, respectively, were found to have been poisoned by Pb. In addition, Pb isotope ratio analysis showed that both Pb rifle bullets and Pb shot pellets cause Pb exposure in birds, and these endangered eagles are also exposed to Pb in Hokkaido due to the illegal use of Pb ammunition. Changing to Pb-free ammunition, such as copper (Cu) rifle bullets, steel shot pellets, or bismuth shot pellets, will be essential for the conservation of avian species in Japan.
Type: article
Appears in Collections:獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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