Veena Kumari & Arvind Kumar*
Department of Zoology, B. N. M. V. College, B. N. M. University, Madhepura, Bihar, India
Received : 10th February, 2020 ; Revised : 20h March, 2020
Abstract: Defilement of anthropogenic xenobiotic chemicals Viz., pesticides as organophosphate–the dichlorvos alter the circulatory fluid, blood in the heterotrophic, cold blooded nektonic culturable exotic fish, Hetropneustes fossilis. The fish were exposed to both lethal and sublethal concentrations of technical grade and 76% EC (Nuvan). In both the concentrations the branchial single circuit blood pumped through venous blood, right from the early point showed imbalance of homeostasis with a dire consequence of haemostasis. The alterations studied were RBC, WBC, Hb, Haematocrit, PCV, MCV and MCHC. A decrement and increment of the parameters studied were reported herewith.