論文

基本情報

氏名 太田 千穂
氏名(カナ) オオタ チホ
氏名(英語) CHIHO OHTA
所属 中村学園大学 栄養科学部 栄養科学科
職名 准教授

題名

Contamination levels of mercury in the muscle of female and male spiny dogfishes (Squalus acanthias) caught off the coast of Japan

単著・共著の別

 

著者

Tetsuya Endo
Yohsuke Hisamichi
Osamu Kimura
Yuichi Kotaki
Yoshihisa Kato
Chiho Ohta
Nobuyuki Koga
Koichi Haraguchi

担当区分

 

概要

We analyzed the total mercury (T-Hg) and stable isotopes of (13)C and (15)N in the muscle of spiny dogfish (Squalus acanthias) caught off the coast of Japan. The average body length of the female spiny dogfish sampled (94.9 +/- 20.2 cm, 50.5-131.0 cm, n = 40) was significantly larger than that of the males sampled (77.8 +/- 10.8 cm, 55.5-94.0 cm, n = 35), although the ages of the samples were unknown. The T-Hg concentration in the muscle samples rapidly increased after maturity in the females (larger than about 120 cm) and males (larger than about 90 cm), followed by a continued gradual increase. Contamination level of T-Hg in female muscle samples (0.387 +/- 0.378 mu g (wet g)(-1), n = 40) was slightly higher than that in male muscle samples (0.316 +/- 0.202 mu g (wet g)(-1), n = 35), probably due to the greater longevity of females. In contrast, the contamination level of T-Hg in females smaller than 94.0 cm in length (0.204 +/- 0.098 mu g (wet g)(-1), n = 20) was slightly lower than that in the males, probably due to the faster growth rate of females. Although the partial derivative(13)C and partial derivative(15)N values in the muscle samples increased with an increase in body length, there were no significant differences between the females (-17.2 +/- 0.4 parts per thousand and 12.4 +/- 0.9 parts per thousand, respectively) and males (-17.3 +/- 0.4 parts per thousand and 12.4 +/- 0.8 parts per thousand, respectively). A positive correlation was found between partial derivative(13)C and partial derivative(15)N values, suggesting trophic enrichment due to the growth. (C) 2009 Elsevier Ltd. All rights reserved.

発表雑誌等の名称

CHEMOSPHERE

出版者

PERGAMON-ELSEVIER SCIENCE LTD

77

10

開始ページ

1333

終了ページ

1337

発行又は発表の年月

2009-11

査読の有無

有り

招待の有無

無し

記述言語

英語

掲載種別

研究論文(学術雑誌)

国際・国内誌

 

国際共著

 

ISSN

 

eISSN

 

DOI

10.1016/j.chemosphere.2009.09.041

Cinii Articles ID

 

Cinii Books ID

 

Pubmed ID

 

PubMed Central 記事ID

 

形式

無償ダウンロード

JGlobalID

 

arXiv ID

 

ORCIDのPut Code

 

DBLP ID