A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Interacting effects of simulated eutrophication, temperature increase, and microplastic exposure on Daphnia (2021)
Hiltunen, M., Vehniäinen, E.-R., & Kukkonen, J. V. K. (2021). Interacting effects of simulated eutrophication, temperature increase, and microplastic exposure on Daphnia. Environmental Research, 192, Article 110304. https://doi.org/10.1016/j.envres.2020.110304
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Hiltunen, Minna; Vehniäinen, Eeva-Riikka; Kukkonen, Jussi V. K.
Lehti tai sarja: Environmental Research
ISSN: 0013-9351
eISSN: 1096-0953
Julkaisuvuosi: 2021
Volyymi: 192
Artikkelinumero: 110304
Kustantaja: Elsevier BV
Julkaisumaa: Yhdysvallat (USA)
Julkaisun kieli: englanti
DOI: https://doi.org/10.1016/j.envres.2020.110304
Julkaisun avoin saatavuus: Ei avoin
Julkaisukanavan avoin saatavuus:
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/78390
Tiivistelmä
The effects of multiple stressors are difficult to separate in field studies, and their interactions may be hard to predict if studied in isolation. We studied the effects of decreasing food quality (increase in cyanobacteria from 5 to 95% simulating eutrophication), temperature increase (by 3 °C), and microplastic exposure (1% of the diet) on survival, size, reproduction, and fatty acid composition of the model freshwater cladoceran Daphnia magna. We found that food quality was the major driver of Daphnia responses. When the amount of cyanobacteria increased from 5 to 95% of the diet, there was a drastic decrease in Daphnia survival (from 81 ± 15% to 24 ± 21%), juvenile size (from 1.8 ± 0.2 mm to 1.0 ± 0.1 mm), adult size (from 2.7 ± 0.1 mm to 1.1 ± 0.1 mm), and reproduction (from 13 ± 5 neonates per surviving adult to 0), but the decrease was not always linear. This was most likely due to lower availability of lipids, eicosapentaenoic acid (EPA), and sterols from the diet. Microplastic exposure did not affect Daphnia survival, size, or reproduction. Food quality had an interactive effect with temperature on fatty acid content of Daphnia. Total fatty acid content of Daphnia was almost 2-fold higher at 20 °C than at 23 °C when fed 50% cyanobacteria. This may have implications for higher trophic level consumers, such as fish, that depend on zooplankton for energy and essential lipids. Our findings suggest that as proportions of cyanobacteria increase, in tandem with water temperatures due to climate change, fish may encounter fewer and smaller Daphnia with lower lipid and EPA content.
YSO-asiasanat: vesikirput; ravinto; ravintoaineet; laatu; vesistöt; rehevöityminen; lämpötila; lipidit; sterolit; rasvahapot; henkiinjääminen; mikroroskat; ilmastonmuutokset; plankton
Vapaat asiasanat: mikromuovit
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- Määrittääkö ravinnon laatu useille stressitekijöille altistuvan eläinplanktonin vasteen?
- Hiltunen, Minna
- Suomen Akatemia
- Omiikat ja kuvantaminen ekotoksikologisten mekanismien tunnistamisessa - esimerkkinä PAH-yhdisteiden aiheuttama kehitystoksisuus
- Vehniäinen, Eeva-Riikka
- Suomen Akatemia
Liittyvät tutkimusaineistot
OKM-raportointi: Kyllä
Raportointivuosi: 2021
JUFO-taso: 2