Proceedings of the Zoological Society

, Volume 72, Issue 3, pp 211–228 | Cite as

Environmental DNA (eDNA): A Promising Biological Survey Tool for Aquatic Species Detection

  • Debabrata Senapati
  • Manojit Bhattacharya
  • Avijit Kar
  • Deep Sankar Chini
  • Basanta Kumar Das
  • Bidhan Chandra PatraEmail author
Review Article


Aquatic species are facing at higher risk of extinction similar to that of any other living components of diversified ecosystem in present scenario. So that, the conservation of aquatic biodiversity is much more important to know about the accurate information regarding species composition and their biological community interactions. Generally, traditional survey methods depend on physical identification and characterization of species but it has some sorts of challenging chances due to the phenotypic plasticity, sibling species, different stages of life cycle and its invasiveness. To overcome such barriers one of the significant and promising tool likewise environmental DNA (eDNA), which way the collection of genetic materials from bulk environment (i.e. soil, water, sediment etc.) circuitously from organisms has been used to monitor and analyzed the biodiversity status, invasive species along with the species of conservation category. Recently, the real application of eDNA analysis based outcomes uphold the actual emerging know how practices in support of the population and community ecology, conservation biology as well as in the superior field of taxonomical research. Such scientific appraisal will be useful in understanding the brief history of aquatic eDNA and obviously its methodological considerations, gentle sources, collection and analysis process, physical form, its persistence and proper transport in aquatic ecosystem. Moreover, the fruitful drives for summarization the discoveries of eDNA application and method over traditional technique, its recent challenges and examine the current and future frontiers along with the appropriate practices of aquatic eDNA relevancy in aquatic ecosystem.


Biodiversity Phenotypic plasticity Sibling species Invasive species Population and Community ecology 



Authors are highly thankful to University Grants Commission (Ref. No.831 344156), Science and Engineering Research Board (Project file No Ref. No. PDF/2016/001776), Department of Science and Technology, Government of India for financial assistance to carried out the research work.


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Copyright information

© Zoological Society, Kolkata, India 2018

Authors and Affiliations

  • Debabrata Senapati
    • 1
  • Manojit Bhattacharya
    • 2
  • Avijit Kar
    • 1
  • Deep Sankar Chini
    • 1
  • Basanta Kumar Das
    • 2
  • Bidhan Chandra Patra
    • 1
    Email author
  1. 1.Department of Aquaculture Management and Technology, Centre For Aquaculture Research, Extension and LivelihoodVidyasagar UniversityMidnaporeIndia
  2. 2.ICAR-Central Inland Fisheries Research InstituteBarrackpore, KolkataIndia

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