The study of bioaccumulation and elimination of copper in blackfish (Capoeta fusca) organs from the east Qantas of Iran

Editorial

Authors

1 Department of Environmental Science, Birjand University

2 Msc Student of Birjand University

Abstract

Contamination of aquatic ecosystems with heavy metals has been receiving increased worldwide attention due to their harmful effects on human health and other organisms in the environment. The aim of this study is to elucidate the accumulation and elimination of copper metal on the gill, muscle and skin tissues of Black fish, Capoeta fusca. Sampling was carried out from Qantas of Birjand area in 2011. Fish samples acclimatize for 10 days to laboratory conditions in aquariums after collecting. The samples with the total length of 13.45cm and the weight of 20.45gr, were put in one control group and two treatment groups containing 0.25 and 0.75mg/L CuCl2 in 40-liter aquariums with three replicates. After specimens were exposed to the polluting substance, for each of the experiment and control group, two fish were sampled at 7, 14 and 21 accumulation and 10 elimination days. The Cu level on different organs of black fish (gill, muscle, skin) was found to be 2.88, 1.2, 2.1 for lower and 4.8, 1.9 and 1.9 for higher sub-lethal concentration, respectively. Thus, the gill is a target organ for copper accumulation, and it is also the critical organ for symptoms. The accumulation and elimination level of Cu was found to follow the order gill > skin > muscle. In conclusion, depuration process of Cu element depends on several conditions such as Cu concentration in the organ target, time of depuration, and the abnormalities of organ after accumulation process.

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Veterinary Research & Biological Products
Volume 25, Issue 4 - Serial Number 4
December 2013
Pages 29-37

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History

  • Receive Date: 21 April 2015
  • Accept Date: 21 April 2015

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