Arsenic and Mn levels in Isaza (Gymnogobius isaza) during the mass mortality event in Lake Biwa, Jspan
Arsenic and Mn levels in Isaza (Gymnogobius isaza) during the mass mortality event in Lake Biwa, Jspan
复制标题
日本琵琶湖大规模死亡事件期间 Isaza (Gymnogobius isaza) 的砷和锰含量
DOI：
10.1016/j.envpol.2011.05.007
复制
发表时间：
2011
影响因子：
8.9
通讯作者：
Shinsuke Tanabe
中科院分区：
文献类型：
--
作者：
Sawako Horai Hirata;Daisuke Hayase;Akifumi Eguchi;Takaaki Itai;Kei Nomiyama;Tomohiko Isobe;Tetsuro Agusa;Toshiyuki Ishikawa;Michio Kumagai;Shinsuke Tanabe
本研究测量了日本琵琶湖特有鱼类 Isaza 全身 25 种元素（Li、Mg、V、Cr、Mn、Co、Ni、Cu、Zn、As、Se、Rb、Sr、Mo、Ag、Cd、In、Sn、Sb、Cs、Ba、Hg、Tl、Pb 和 Bi）的浓度，并比较了大规模死亡 Isaza（MMI）和正常新鲜 Isaza 的样本中的值。 （国家金融机构）。 MMI 中锰和总砷 (T-As) 的平均水平相对高于 NFI。在T-As中，MMI中检测到剧毒无机砷。此外，我们发现表层沉积物中的锰和砷浓度极高，并且随时间增加。从所有这些结果中，我们可以推断，琵琶湖表层沉积物中锰和砷的溶解可能是伊萨扎大规模死亡的原因之一。
The present study measured the concentrations of 25 elements (Li, Mg, V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Mo, Ag, Cd, In, Sn, Sb, Cs, Ba, Hg, Tl, Pb and Bi) in the whole body of Isaza which is an endemic fish species to Lake Biwa, Japan, and compared the values in the specimens from the mass mortality Isaza (MMI) and normal fresh Isaza (NFI). The mean levels of Mn and total As (T-As) were relatively higher in MMI than in NFI. In the T-As, highly toxic inorganic As was detected in MMI. Moreover we found Mn and As concentrations in surface sediment were extremely high and temporally increased. From all these results, we could infer that the dissolution of Mn and As from surface sediment of Lake Biwa might have been one of the cause for the mass mortality of Isaza.