Studies on Toxicological Effect of the Herbicide Paraquat Dichloride on the Air Breathing Singhi Catfish, Heteropneustes fossilis (Bloch)

2020 ◽  
Vol 73 (4) ◽  
pp. 406-417
Author(s):  
Pritimoni Das ◽  
Manas Das ◽  
Anuradha Kalita ◽  
Priyambada Chutia
2018 ◽  
Vol 6 (1) ◽  
pp. 68-74
Author(s):  
Gitalee Bhuyan ◽  
◽  
Nirmalendu Saha ◽  

The Indian air-breathing catfish, Heteropneustes fossilis faces various environmental constraints throughout the year leading to the problem of accumulation of toxic ammonia. Water restricted mud dwelling condition is a common environmental stress (desiccation stress) for catfishes in North Eastern India during winter. The fish is able to survive inside moist peat for months. In the present study the air breathing singhi catfish H. fossilis was kept inside mud peat for 30 days mimicking their normal habitat in winter and the changing pattern of free amino acid (FAAs) content was investigated in renal tissue. Under desiccation, a significant accumulation of ammonia and FAA, mainly glutamine, alanine, glycine, glutamate and serine have been observed in the renal tissue with approximately 2.56 and 1.56 fold increase. Thus, it appears that the Indian air-breathing catfish handle the ammonia toxicity by conversion of ammonia to some non-essential FAAs.


2010 ◽  
Vol 93 (3) ◽  
pp. 585-592 ◽  
Author(s):  
Abhishek Kumar ◽  
ManiRam Prasad ◽  
Diwakar Mishra ◽  
Sunil K. Srivastav ◽  
Ajai K. Srivastav

Sign in / Sign up

Export Citation Format

Share Document