Suchismita
Das
(Corresponding author)??????
|
Department of Life Science and
Bioinformatics, Assam University, Silchar - 788 011, India
e-mail :? das_aus@rediffmail.com
|
Publication
Data
Paper received:
23 August 2011
Revised received:
29 October 2011
Accepted:
16 November 2011
|
Abstract
Effects
of three sub lethal concentrations of cadmium chloride (0.636, 0.063 and
0.006 mg l-1) on
oxygen consumption and gill morphology in Indian flying barb, Esomus
danricus (Hamilton-Buchanan), a teleost fish, were studied. When compared
to control, 0.636 mg l-1?of
cadmium chloride after 7, 14, 21 and 28 day exposure showed a significant
decline in rates of oxygen consumption at 32.98, 28.40, 23.88 and 21.69 ml hr-1?100g-1?of tissue, respectively;
while, 0.063 mg l-1?of
cadmium chloride for the same exposure durations showed a significant decline
in rates of oxygen consumption at 34.28, 29.30, 28.05 and 26.47 ml hr-1?100g-1?of tissue, respectively.
However, significant decline in the rate of oxygen consumption at 0.006 mg l-1?of cadmium chloride
could be observed from 21st?day
of exposure. Gill tissue showed various histopathological changes including
epithelial lifting, hyperplasia, mucous secretion, marked leucocyte
infiltration in the epithelium after 28 days of cadmium chloride exposure.
Key words
Cadmium chloride, Oxygen consumption, Gill histology, Esomus
danricus
|
Copyright
? 2012 Triveni Enterprises. All rights reserved. No part of the Journal can
be reproduced in any form without prior permission. Responsibility
regarding the authenticity of the data, and the acceptability of the
conclusions enforced or derived, rest completely with the author(s).
|