A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Ethanol preservation effects on stable carbon, nitrogen and hydrogen isotopes in the freshwater pearl mussel (2023)

Hajisafarali, M., Taskinen, J., Eloranta, A. P., & Kiljunen, M. (2023). Ethanol preservation effects on stable carbon, nitrogen and hydrogen isotopes in the freshwater pearl mussel. Hydrobiologia, 850(8), 1885-1895. https://doi.org/10.1007/s10750-023-05199-2

JYU-tekijät tai -toimittajat

Hajisafarali, Mahsa
Taskinen, Jouni
Eloranta, Antti
Kiljunen, Mikko

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Hajisafarali, Mahsa; Taskinen, Jouni; Eloranta, Antti P.; Kiljunen, Mikko

Lehti tai sarja: Hydrobiologia

ISSN: 0018-8158

eISSN: 1573-5117

Julkaisuvuosi: 2023

Ilmestymispäivä: 23.03.2023

Volyymi: 850

Lehden numero: 8

Artikkelin sivunumerot: 1885-1895

Kustantaja: Springer

Julkaisumaa: Alankomaat

Julkaisun kieli: englanti

DOI: https://doi.org/10.1007/s10750-023-05199-2

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/86150

Tiivistelmä

Chemical preservatives can alter stable isotope ratios in animal tissues. The effects of preservation on δ13C and δ15N values have been investigated in a variety of species, but not on δ2H values or on the freshwater pearl mussel (FPM, Margaritifera margaritifera) tissues. We evaluated the effect of ethanol preservation (unpreserved vs preserved tissues) over 6 months on the δ13C, δ15N and δ2H values of FPM foot and gonad tissues. Ethanol preservation significantly increased δ13C values (foot 0.4 ‰; gonad 0.3 ‰), whereas it did not significantly affect δ15N values (foot 0.2 ‰; gonad − 0.1 ‰). The positive effect of ethanol preservation on δ2H values (foot 7.1 ‰; gonad 14.5 ‰) and the negative effect on C:N ratios (foot − 0.1; gonad − 0.5) depended on the tissue type, with larger effects found on the lipid-rich gonad. Overall, ethanol preservation affected δ2H values more than the δ13C, δ15N or C:N ratios of FPM tissues. After 1 month of preservation, the isotope values remained rather stable, and significant changes were only observed in δ15N values. The results imply that ethanol-preserved FPM samples can be used if potential shifts in isotopic and elemental ratios are accounted for prior running mixing models for estimating dietary proportions.

YSO-asiasanat: etanoli; lipidit; jokihelmisimpukka; isotooppianalyysi

Vapaat asiasanat: C:N ratio; deuterium; Margaritifera margaritifera; stable isotope analysis; ethanol storage; lipids

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