Users Online: 332

Home Print this page Email this page Small font sizeDefault font sizeIncrease font size

Home | About us | Editorial board | Search | Ahead of print | Current issue | Archives | Submit article | Instructions | Subscribe | Contacts | Login 
     
ORIGINAL ARTICLE
Year : 2017  |  Volume : 7  |  Issue : 2  |  Page : 39-43

Induced Developmental Toxicity Studies With Mercuric Chloride and Polychlorinated Biphenyls on Danio Rerio (Zebrafish) Embryo


PG and Research Department of Zoology, ADM College for Women, Nagapattinam, Tamil Nadu, India

Correspondence Address:
Vijayalakshmi Venkatarajulu
PG and Research Department of Zoology, ADM College for Women, Nagapattinam 611001, Tamil Nadu
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijnpnd.ijnpnd_2_17

Rights and Permissions

Introduction: Fish population is generally considered very sensitive to all kinds of environmental changes to which it is exposed, as they are exclusively aquatic with an external mode of fertilization. The aim of this study is to highlight the effects of some of the most powerful environmental toxicants such as mercuric chloride (HgCl2) and polychlorinated biphenyls (PCBs), which alter the behavioral response, embryo survival rate, embryo hatching ratio, mortality rate, and heart rates of Danio rerio (zebrafish) embryo during its developmental stages. Materials and Methods: Zebrafish (D. rerio) were exposed to progressive concentrations of HgCl2 and PCBs. The water quality parameters were analyzed, and the acute toxicity test was conducted using eight fish for different concentrations; the results were compared with the control group. In addition, behavioral changes at each concentration were observed for the individual fish. Results and Discussion: The fish were exposed to various concentrations of 5, 10, 20, 30, 40, 50, and 60 μg/L of HgCl2 and PCB for a period of up to 2 weeks. The toxicity was concentration as well as time dependent. Toxicity tests revealed that the larvae of zebrafish were more sensitive to these toxicants as compared to the embryos.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed588    
    Printed10    
    Emailed0    
    PDF Downloaded38    
    Comments [Add]    

Recommend this journal