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Journal of Environmental BiologypISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP |
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Abstract - Issue Mar 2009, 29 (2) BackImpact of copper on haematological profile of freshwater fish, Channa punctatus Dharam Singh*, Kamlesh
Nath, S.P. Trivedi and Y.K.
Sharma Department
of Environmental Science, (Received:
July 10, 2007; Revised
received: October 15, 2007; Accepted: November 05, 2007) Abstract: The present study was to evaluate heavy metal toxicity
stress symptoms in fish blood during long-term exposure of sublethal
concentration of copper sulphate (CuSO4). The effects of copper on various heamatological parameters were evaluated exposing Indian
fresh water fish, Channa punctatus
to a sub-lethal concentration of copper sulphate
(0.36 mg l-1) for different periods. Exposure of fish to
copper showed a significant decrease in the haemoglobin
(Hb) content from 10.73 to 6.60%, red blood cells
(RBC) from 2.86 to 1.84 x106/ mm3 and packed
cell volume (PCV) from 31.00 to 23.33% at the end of 45th day as compared to control. Whereas the white
blood cells (WBC) increased from 60.00 to 92.48 x103/
mm3, clotting time (CT) from 27.66 to 43.00
second, erythrocyte sedimentation rate from 5.0 to 13.66 mm / hr and mean
corpuscular volume from 108.11 to 126.85 cµ, significantly, with increase in
exposure periods. Although mean corpuscular haemoglobin
concentration (MCHC) and mean corpuscular haemoglobin
(MCH) values showed significant increase during 15 and 30 days exposures,, both the values were found significantly increased at the
end of the experimental period. The differential leucocytes count (DLC) showed
a significant increase in the populations of lymphocytes and eosinophils, whereas neutrophils,
monocytes and basophiles were found decreased after
exposure to copper. Key words: Channa punctatus,
Blood, Copper sulphate PDF
of full length paper is available with author (ds_envi@rediffmail.com) Copyright
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