Fatty acid content, stable isotopes and fads2 gene expression in the perch (Perca fluviatilis) in Lake Pääjärvi between September 2020 and August 2021


Rigaud, Cyril; Calderini, Marco; Tiirola, Marja; Taipale, Sami; Kahilainen, Kimmo K; Pilecky, Matthias; Kainz, Martin J. (2022). Fatty acid content, stable isotopes and fads2 gene expression in the perch (Perca fluviatilis) in Lake Pääjärvi between September 2020 and August 2021. https://doi.org/10.17011/jyx/dataset/83987.


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All authors: Rigaud, Cyril; Calderini, Marco; Tiirola, Marja; Taipale, Sami; Kahilainen, Kimmo K; Pilecky, Matthias; Kainz, Martin J.

Funders: Academy of Finland

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Availability and identifiers

Availability: Direct download

Publication year: 2022

URN identifier in JYX: http://urn.fi/URN:NBN:fi:jyu-202211185274

DOI identifier in JYX: https://doi.org/10.17011/jyx/dataset/83987


Description of the dataset

Description: In the present study, we investigated the year-round variability in the expression of fads2 (measured via quantitative real-time PCR) in the liver of the European perch in a boreal lake in relation to individual variation in size, sex, and maturity. Our objectives were to (i) assess if there were any seasonal changes in the expression of fads2 in the liver of P. fluviatilis and (ii) if these changes could be related to environmental (seasonality in temperature, light, oxygen) or biological variation (body size, sex, maturity, diet). To answer these questions, together with fads2 activity we report carbon stable isotopes values as well as the content of fatty acids (FAs) in perch tissues (liver, muscle and gonad) and potential perch prey items sampled simultaneously.

Language: English

Free keywords: DHA, ARA, fads2, perch, PUFA

Keywords (YSO): fatty acids; omega fatty acids; perch; lakes; reproduction (biology)

Fields of science: 1181 Ecology, evolutionary biology; 1182 Biochemistry, cell and molecular biology

Follow-up groups: Nanoscience Center (Department of Physics PHYS, JYFL) (Faculty of Mathematics and Science) (Department of Chemistry CHEM) (Department of Biological and Environmental Science BIOENV) NSC

Profiling area: Nanoscience Center (Department of Physics PHYS, JYFL) (Faculty of Mathematics and Science) (Department of Chemistry CHEM) (Department of Biological and Environmental Science BIOENV) NSC

Do you deal with data concerning special categories of personal data in your research?: No


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Last updated on 2022-18-11 at 12:12