Vesela Yancheva

Vesela Yancheva
Plovdiv University "Paisii Hilendarski" · Department of Ecology and Environmental Protection

Researcher, PhD
I'm currently exploring the negative effects of PBDEs on freshwater mussels and fish. Next are microplastics.


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Citations since 2016
43 Research Items
390 Citations
My field of research is environmental toxicology. I have a special interest in pollution responsive biomarkers (histological, biochemical) for their use in environmental risk assessment and monitoring programs. My test organisms are fish and mussels, and I'm currently working with heavy metal and POPs (pesticides, polyaromatic hydrocarbons) contamination of freshwater ecosystems and its negative effects on biota.
Additional affiliations
April 2022 - April 2022
University of Debrecen
  • Guest Researcher
  • Aquatic pollution and its effects on different biomarkers in mussels and fish.
September 2021 - September 2021
Universidade do Algarve
  • Erasmus Exchange Guest Researcher
  • Aquatic pollution and its effects on different biomarkers in mussels and fish.
October 2013 - January 2014
University of Oslo
Field of study
  • Toxicology
April 2011 - May 2014
Plovdiv University "Paisii Hilendarski"
Field of study
  • Ecology and Environmental Conservation
August 2008 - August 2010
Norwegian University of Life Sciences (NMBU)
Field of study
  • Ecology and Natural Resource Management


Questions (5)
I am about to apply the LMS (lysosomal membrane stability) method on mussels and following the protocol I need HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid). However, the companies in my country don't have it in stock and they need 4 weeks to get it. I need it for my experiment by the end of this month. Do you have any idea if I can use another buffer instead of HEPES? Thank you!!!
I would like to know more about other national allowable heavy metal levels in fish.
I am familiar with:
- COMMISSION REGULATION (EC) No 629/2008 of 2 July 2008 amending Regulation (EC) No 1881/2006 setting maximum levels for certain contaminants in foodstuffs; 
- Joint FAO/WHO food standards programme codex committee on contaminants in foods, Fifth Session, The Hague, The Netherlands, 21-25 March 2011; and
- Australia/New Zealand Food Standards Code (2013)
but couldn't really find information for example about Scandinavian, Turkish or Canadian regulations and recommendations. Thanks.
Two marine species - Mytilus edulis and Mytilus galloprovincialis are the most common ones, which are used in ecotox research on the effects of water contamination. I was wondering which freshwater mussels can be successfully applied in such studies instead of the marine species? Thanks a lot.


Cited By


Projects (2)
The "Vita Plus" project is implemented by a transdisciplinary team of 22 people from all academic ranks – PhD students, assistant professors, associate professors and professors at the University of Plovdiv Paisii Hilendarski (UP) . The project is presented by researchers from the following faculties and branches at the UP: – Faculty of Chemical Sciences; – Faculty of Physical and Technological Sciences; – Faculty of Biological Sciences; – Faculty of Economic and Social Sciences; – Faculty of Philosophical and Historical Sciences; – Faculty of Pedagogical Sciences; – Faculty of Law; – the branch of the UP in the town of Smolyan. The project is funded by the Science Research Fund at the University of Plovdiv under the “Green Technologies” project line. For more information visit our website: Follow us on Facebook:
To characterize the polysaccharide content of Bulgarian Plantago species and study the possibility of stimulating the growth of probiotic lactobacilli from oligosaccharides obtained by enzymatic hydrolysis of polysaccharides.