Mercury Concentrations in Commercial Fish Species of Lake Phewa, Nepal

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Chhatra Mani Sharma
  • Suresh Basnet
  • Shichang Kang
  • Bjørn Olav Rosseland
  • Qianggong Zhang
  • Ke Pan
  • Reidar Borgstrøm
  • Qing Li
  • Jie Huang
  • Hans-Christian Teien
  • Subodh Sharma

Detail(s)

Original languageEnglish
Pages (from-to)272-277
Journal / PublicationBulletin of Environmental Contamination and Toxicology
Volume91
Issue number3
Online published10 Jul 2013
Publication statusPublished - Sep 2013
Externally publishedYes

Abstract

Mercury (Hg) concentrations in four commercial fish species (Tilapia Oreochromis niloticus, Spiny Eel Mastacembelus armatus, African catfish Clarias gariepinus, and Sahar Tor putitora), were investigated in Lake Phewa, Nepal. Mean values of total mercury (THg mg kg-1, ww) in these fishes were 0.02, 0.07, 0.05, and 0.12 respectively. Methylmercury contributed 82 % of THg. The lowest value was detected in O. niloticus, an exclusive plant feeder. The biomagnification rate of Hg through the fish community was 0.041 per δ15N (‰). The present investigation produced an important baseline data of Hg pollution in the fish community in this region. © 2013 Springer Science+Business Media New York.

Research Area(s)

  • Biomagnification, Commercial fish, Lake Phewa, Mercury

Citation Format(s)

Mercury Concentrations in Commercial Fish Species of Lake Phewa, Nepal. / Sharma, Chhatra Mani; Basnet, Suresh; Kang, Shichang; Rosseland, Bjørn Olav; Zhang, Qianggong; Pan, Ke; Borgstrøm, Reidar; Li, Qing; Wang, Wen-Xiong; Huang, Jie; Teien, Hans-Christian; Sharma, Subodh.

In: Bulletin of Environmental Contamination and Toxicology, Vol. 91, No. 3, 09.2013, p. 272-277.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review