Project NCN OPUS 22 entitled: „Exploration of the development, functioning and role of circadian rhythm in early life stages of Perca fluviatilis”

Principal Investigator:

Dr. Daniel Żarski, Dr. Katarzyna Palińska-Żarska

Description of the position:

General aim of this project is to verify at which developmental stage the embryos or larvae of Eurasian perch, Perca fluviatilis, acquiring ‘sense of time’ and how this ability undergoes future dynamics during the larval and/or juvenile periods. Additionally, the project will allow to answer the question ‘whether’ and ‘to what extent’ modified photoperiod and/or light spectrum, affects circadian rhythm of early life stages of the species studied.

The candidate will participate in the following research tasks:

  1. Controlled reproduction of Eurasian perch (induction of ovulation and spermiation, obtaining the gametes, in vitro fertilization);
  2. Incubation of Eurasian perch eggs, evaluation of the quality of embryos;
  3. Rearing of larvae and juveniles and evaluation of their zootechnical indicators;
  4. Sampling of biological material and their evaluation in terms of transcriptomic research;
  5. RNA, protein isolations and molecular analysis;
  6. Transcriptomic and proteomic analysis;
  7. Preparation of scientific articles.


  1. A master’s degree in fisheries, agriculture, biology or equivalent (expected before the deadline of this application);
  2. High motivation to work in a multidisciplinary and international team with fish breeders, fish larvae as well as in molecular biology laboratory;
  3. Basic knowledge on biology and animal physiology (vertebrates);
  4. Basic knowledge on genomic tools (mainly transcriptomics and proteomics) will be appreciated, but not prerequisite;
  5. Fluency in English in writing and speaking;
  6. Availability, good work organization, ability to work in a team and deal with stress;
  7. Ability to write scientific and / or popular science papers and present the results.

Conditions of work:

  1. The selected candidate will participate in the Interdisciplinary Doctoral School of Agricultural Sciences at the Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences in Olsztyn.
  2. The elected candidate will receive a monthly PhD scholarship of 4 276 PLN gross (around 3 700 PLN net salary)
  3. Location of the workplace: Department of Gamete and Embryo Biology, IAR&FR PAS, Bydgoska Str. 7, 10-243 Olsztyn, POLAND
  4. Starting date: October 1, 2022,
  5. The PhD course length: 48 months.

Interested candidates are asked to provide the following documents:

  1. Cover letter;
  2. Curriculum vitae (CV), containing:
    • education,
    • scientific achievements, including scientific publications, popular science articles, conference announcements,
    • achievements resulting from conducting scientific research, scholarships, awards, scientific experience, workshops and scientific training as well as participation in research projects,
    • competences to carry out the tasks provided for in the project;
  3. Opinion of the research supervisor and/or mentor;
  4. Other documents that, according to the candidate, may be important when considering the candidature.

Applications should be sent to:

Dr. Daniel Żarski, e-mail: Deadline July 22, 2022 until 3:00 p.m. The subject of the letter should be „PhD application”.

Selected candidates will be invited for an interview to be conducted on-line on July 27th 2022.

Contact and additional information:

In your CV, please include a consent clause for the processing of personal data in the recruitment process:

„I consent to the processing of my personal data contained in the application documents by the Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences in Olsztyn, 10-748 Olsztyn, ul. Tuwima 10, in order to carry out the recruitment process and publishing the full results of the competition on the Institute’s website”.

Information clause:

  1. The administrator of personal data processed as part of the recruitment process is the Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences in Olsztyn, 10-748 Olsztyn, ul. Tuwima 10, phone no. 89 523 46 86, e-mail:
  2. Contact with the personal data protection officer is possible at the above-mentioned address.
  3. The provided personal data will be processed in order to carry out the current recruitment process and kept until its completion on the basis of expressed consent (in accordance with Article 6 (1) (a) of the GDPR).
  4. You have the right to withdraw consent at any time without affecting the lawfulness of the processing which was carried out on the basis of consent before its withdrawal.
  5. You have the right to access your personal data, request their rectification or removal. Submitting a request to delete data is tantamount to resignation from participation in the recruitment process. In addition, you have the right to request the restriction of processing in the cases specified in art. 18 GDPR.
  6. You have the right to lodge a complaint with the President of the Personal Data Protection Office against the unlawful processing of his personal data. This authority will be competent to consider the complaint, provided that the right to file a complaint concerns only the lawfulness of the processing of personal data, and not the recruitment process.
  7. Your data will not be profiled or made available to entities or third countries. The recipients of the data may be institutions authorized by law.
  8. Providing your personal data is not obligatory, but it is a necessary condition to participate in the recruitment process. 


Data publikacji: 6.07.2022