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Survey of contamination of estrogenic chemicals in Japanese and Korean coastal waters using the wild grey mullet (Mugil cephalus)

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Title: Survey of contamination of estrogenic chemicals in Japanese and Korean coastal waters using the wild grey mullet (Mugil cephalus)
Authors: Aoki, Jun-ya Browse this author
Nagae, Masaki Browse this author
Takao, Yuji Browse this author
Hara, Akihiko Browse this author →KAKEN DB
Lee, Young-Don Browse this author
Yeo, In-Kyu Browse this author
Lim, Bong-Soo Browse this author
Park, Chang-Beom Browse this author
Soyano, Kiyoshi Browse this author
Keywords: Fish
Estrogen activity
Endocrine disrupting chemicals
Vitellogenin
Testis-ova
East Asia
Issue Date: 1-Jan-2010
Publisher: Elsevier B.V.
Journal Title: Science of The Total Environment
Volume: 408
Issue: 3
Start Page: 660
End Page: 665
Publisher DOI: 10.1016/j.scitotenv.2009.08.009
Abstract: We monitored the contamination by environmental estrogens (EEs) of coastal areas in Korea and Japan using the wild grey mullet. The grey mullet were collected from Ansan, Jeju, Yeosu, Tongyeong, and Busan in Korea and Nagasaki, Omuta, and Fukuoka in Japan. Contamination by EEs was determined by measuring vitellogenin (VTG) levels in serum and identifying gonadal abnormalities histologically (i.e., testis-ova). In four sites in Korea (Ansan, Yeosu, Tongyeong, and Busan) and two sites in Japan (Nagasaki and Fukuoka), serum VTG in immature and male grey mullet was detected at levels greater than 1.0 μg/ml, which is considered to be an abnormal level. Although, testis-ova were observed in some individuals collected in Ansan, Tongyeong, and Busan in Korea and Omuta in Japan, there was no correlation between individuals with testis-ova and individuals with abnormal levels of VTG. Furthermore, in Japan, serum VTG levels of fish collected from Nagasaki and Fukuoka was also greater than 1.0 μg/ml. Although individuals with testis-ova were found in Omuta, these fish expressed normal levels of serum VTG. Our results suggest that the grey mullet living in these coastal areas are influenced by EEs in the environment. Furthermore, it appears that the production of VTG and the occurrence of testis-ova are caused by different mechanisms.
Type: article (author version)
URI: http://hdl.handle.net/2115/49919
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 原 彰彦

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