A1 Journal article (refereed)
Testate amoebae as a potential tracer of organic matter dislodged from peat extraction areas (2020)

Daza Secco, E., Haimi, J., Vähäkuopus, T., Ojala, A., Valpola, S., & Meissnner, K. (2020). Testate amoebae as a potential tracer of organic matter dislodged from peat extraction areas. Boreal Environment Research, 25, 19–37. http://www.borenv.net/BER/archive/pdfs/ber25/ber25-019-037.pdf

JYU authors or editors

Publication details

All authors or editors: Daza Secco, Emmanuela; Haimi, Jari; Vähäkuopus, Tuija; Ojala, Antti; Valpola, Samu; Meissnner, Kristian

Journal or series: Boreal Environment Research

ISSN: 1239-6095

eISSN: 1797-2469

Publication year: 2020

Volume: 25

Pages range: 19–37

Publisher: Boreal Environment Research Publishing Board

Publication country: Finland

Publication language: English

Persistent website address: http://www.borenv.net/BER/archive/pdfs/ber25/ber25-019-037.pdf

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/68719


In the boreal zone, surface waters mostly receive external organic matter (OM) from surrounding peatlands. The lake’s biological communities may respond to changes in OM inputs caused by anthropogenic activities in the catchment. Testate amoebae (TA) possess an outer shell that preserves well in lake sediments and are commonly used in paleo-environmental studies. Additionally, they fall into the size range of particles transported from peatlands to lakes, making them potential particle tracers. Here, we compared TA communities of current and pre-peat extraction sediments from lakes receiving OM only from peat extraction areas (impact lakes) with lakes receiving OM from peatlands under other uses (control lakes). We found no differences between control and impact lakes, neither between current and pre-peat extraction. In conclusion, there is either no significant increase in the amount of organic matter discharge from peatland areas, or dislodged testate amoeba are retained in areas upstream of the lakes.

Keywords: boreal zone; peatlands; peat production; organic material; state of waters; environmental indicators; amoebae

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 1

Last updated on 2021-16-09 at 09:55