Histopathological changes induced in the gill of an. estuarine mullet, Liza parsia, by sublethal exposure to mercuric chloride


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Authors

  • A K Pandey Central Marine Fisheries Research Institute, Cochin - 682 014, India
  • K C George Central Marine Fisheries Research Institute, Cochin - 682 014, India
  • M Peer Mohamed Central Marine Fisheries Research Institute, Cochin - 682 014, India

Abstract

Sublethal exposure of Liza parsia to HgCl2 (0.5 ppm) elicited erratic swimming
pattern, loss of equilibrium and respiratory distress during the initial 24 hrs.
On day 2, copious secretion of mucus, swelling (hypertrophy) and vacuolization
of the epithelial lining cells of secondary gill lamellae were noticed. Oedema
and oedematous separation of epidermis from the basement membrane as well
as necrosis and desquamation of epithelial cells were observed by day 4.
Oedematous changes, particularly at the base of primary lamellae, tissue
hyperplasia and fusion of secondary gill lamellae were seen on day 8 of the
treatment. Extensive cellular hyperplasia, desquamation of epithelial cells,
congestion of blood vessels and lamellar telangectases (aneurysms) were
frequently encountered on day 10 and the entire interlamellar spaces became
filled with the hyperplastic epithelium by day 15 of HgCl2 intoxication

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Author Biographies

  • A K Pandey, Central Marine Fisheries Research Institute, Cochin - 682 014, India
    Central Marine Fisheries Research Institute, Cochin - 682 014, India
  • K C George, Central Marine Fisheries Research Institute, Cochin - 682 014, India
    Central Marine Fisheries Research Institute, Cochin - 682 014, India
  • M Peer Mohamed, Central Marine Fisheries Research Institute, Cochin - 682 014, India
    Central Marine Fisheries Research Institute, Cochin - 682 014, India

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Issue

Vol. 43 No. 3 (1996)

Section

Articles

License

The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.

How to Cite

Pandey, A. K., George, K. C., & Mohamed, M. P. (2011). Histopathological changes induced in the gill of an. estuarine mullet, Liza parsia, by sublethal exposure to mercuric chloride. Indian Journal of Fisheries, 43(3), 285-291. http://epubs.icar.org.in/index.php/IJF/article/view/10140