Testate amoebae as a potential tracer of organic matter dislodged from peat extraction areas
Daza Secco, Emmanuela; Haimi, Jari; Vähäkuopus, Tuija; Ojala, Antti; Valpola, Samu; Meissnner, Kristian (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
Published inBoreal Environment Research
© Boreal Environment Research Publishing Board, 2020
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. ...
PublisherBoreal Environment Research Publishing Board
Publication in research information system
MetadataShow full item record
Additional information about fundingEmmanuela Daza Secco also thanks the Maj and Tor Nessling foundation and the University of Jyväskylä for financial support.
Showing items with similar title or keywords.
Disentangling the effects of methanogen community and environment on peatland greenhouse gas production by a reciprocal transplant experiment Juottonen, Heli (Wiley-Blackwell, 2020)Northern peatlands consist of a mosaic of peatland types that vary spatially and temporally and differ in their methane (CH4) production. Microbial community composition and environment both potentially control the processes ...
Daza Secco, Emmanuella; Haimi, Jari; Högmander, Harri; Taskinen, Sara; Niku, Jenni; Meissner, Kristian (Springer Netherlands, 2018)As most ecosystems, peatlands have been heavily exploited for different human purposes. For example, in Finland the majority is under forestry, agriculture or peat mining use. Peatlands play an important role in carbon ...
Gu, Yufei (University of Jyväskylä, 2017)In surface waters, solar radiation can photochemically mineralise the dissolved organic carbon (DOC, a measure of dissolved organic matter, DOM) to dissolved inorganic carbon (DIC). This DIC photoproduction constitutes ...
Wallin, Jaana; Karjalainen, Juha; Väisänen, Ari; Karjalainen, Anna K. (Springer, 2021)Boreal lakes with soft water and low buffering capacity are susceptible to excess ion loading resulting from metal mining. The impact of two Finish mining sites in downstream lakes was assessed with a chronic sediment ...
Oikarinen, Päivi (2013)Turvemaiden maankäytöllä on todettu olevan monenlaisia ympäristövaikutuksia, kuten esimerkiksi kasvihuoneilmiötä vauhdittavat kaasupäästöt (esim. CO2 & CH4), turvetuotannon vesistövaikutukset ja turpeenpolton päästöt. ...