A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Water quality assessment by in situ whitefish egg incubation (2021)


Karjalainen, A. K., Arola, H. E., Syrjänen, J. T., & Karjalainen, J. (2021). Water quality assessment by in situ whitefish egg incubation. Advances in Limnology, 66, 261-275. https://doi.org/10.1127/adv_limnol/2021/0078


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Karjalainen, Anna K.; Arola, Hanna E.; Syrjänen, Jukka T.; Karjalainen, Juha

Lehti tai sarja: Advances in Limnology

ISSN: 1612-166X

Julkaisuvuosi: 2021

Ilmestymispäivä: 15.12.2021

Volyymi: 66

Artikkelin sivunumerot: 261-275

Kustantaja: Schweizerbart

Julkaisumaa: Saksa

Julkaisun kieli: englanti

DOI: https://doi.org/10.1127/adv_limnol/2021/0078

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus: 


Tiivistelmä

Fertilized eggs of European whitefish (Coregonus lavaretus) were incubated during their natural incubation period from November to April in a boreal lake and six streams, all affected by 
multi-metal mining effluents since 2008. The freshwater lake was salt-stratified by the effluents. Water quality effects on the egg survival and applicability of the method for assessment of whitefish reproduction success in stressed aquatic environments were evaluated. In the lake, floating incubation devices were installed at two depths beneath the ice cover. Bottom-buried baskets with incubation cylinders were used in the streams. Combined effluent effects on egg survival were detectable using the methods. In the streams, the total instantaneous embryonic mortality rate (ZT) varied between 0.3–0.6, which corresponds to 29.3–44.3% total mortality. In the lake epilimnion and hypolimnion, ZT was 1.7 and 4.4 corresponding to 71.7% and 99.7% total mortality, respectively. With the floating incubation method under the ice cover, the effect of a lake halocline anomaly was detected. Water quality characteristics contributing to the high egg mortality in the lake were low oxygen concentration due to the ectogenic meromixis, and the effluent metals Al, Cu, Mn, Na and Ni. In the streams, despite low pH values and effluent peaks measured as high specific conductivity, whitefish eggs survived better than in the lake. Both applied incubation methods showed potential as bioindicators of sufficient water quality for fish reproduction success.


YSO-asiasanat: järvet; joet; vesistöt; vedenlaatu; vesien saastuminen; jätevesi; metallit; vaikutukset; biologiset vaikutukset; ympäristövaikutukset; kalat; kuolleisuus

Vapaat asiasanat: fish; long-term incubation; mortality; multi-metal mining; lake; river


Liittyvät organisaatiot


Hankkeet, joissa julkaisu on tehty


OKM-raportointi: Kyllä

Raportointivuosi: 2021

JUFO-taso: 1


Viimeisin päivitys 2024-03-04 klo 19:45