Mercury Concentrations in Commercial Fish Species of Lake Phewa, Nepal

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

doi:10.1007/s00128-013-1055-y

Mercury Concentrations in Commercial Fish Species of Lake Phewa, Nepal

Chhatra Mani Sharma^*
, Suresh Basnet
, Shichang Kang
, Bjørn Olav Rosseland
, Qianggong Zhang
, Ke Pan
, Reidar Borgstrøm
, Qing Li
, Wen-Xiong Wang
, Jie Huang
, Hans-Christian Teien
, Subodh Sharma

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

11 Citations (Scopus)

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.

Original language	English
Pages (from-to)	272-277
Journal	Bulletin of Environmental Contamination and Toxicology
Volume	91
Issue number	3
Online published	10 Jul 2013
DOIs	https://doi.org/10.1007/s00128-013-1055-y
Publication status	Published - Sept 2013
Externally published	Yes

Research Keywords

Biomagnification
Commercial fish
Lake Phewa
Mercury

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10.1007/s00128-013-1055-y

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title = "Mercury Concentrations in Commercial Fish Species of Lake Phewa, Nepal",

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. {\textcopyright} 2013 Springer Science+Business Media New York.",

keywords = "Biomagnification, Commercial fish, Lake Phewa, Mercury",

author = "Sharma, \{Chhatra Mani\} and Suresh Basnet and Shichang Kang and Rosseland, \{Bj{\o}rn Olav\} and Qianggong Zhang and Ke Pan and Reidar Borgstr{\o}m and Qing Li and Wen-Xiong Wang and Jie Huang and Hans-Christian Teien and Subodh Sharma",

year = "2013",

month = sep,

doi = "10.1007/s00128-013-1055-y",

language = "English",

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TY - JOUR

T1 - Mercury Concentrations in Commercial Fish Species of Lake Phewa, Nepal

AU - Sharma, Chhatra Mani

AU - Basnet, Suresh

AU - Kang, Shichang

AU - Rosseland, Bjørn Olav

AU - Zhang, Qianggong

AU - Pan, Ke

AU - Borgstrøm, Reidar

AU - Li, Qing

AU - Wang, Wen-Xiong

AU - Huang, Jie

AU - Teien, Hans-Christian

AU - Sharma, Subodh

PY - 2013/9

Y1 - 2013/9

N2 - 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.

AB - 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.

KW - Biomagnification

KW - Commercial fish

KW - Lake Phewa

KW - Mercury

UR - https://www.scopus.com/pages/publications/84883143367

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84883143367&origin=recordpage

U2 - 10.1007/s00128-013-1055-y

DO - 10.1007/s00128-013-1055-y

M3 - RGC 21 - Publication in refereed journal

C2 - 23839154

SN - 0007-4861

VL - 91

SP - 272

EP - 277

JO - Bulletin of Environmental Contamination and Toxicology

JF - Bulletin of Environmental Contamination and Toxicology

IS - 3

ER -

Mercury Concentrations in Commercial Fish Species of Lake Phewa, Nepal

Abstract

Research Keywords

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