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SITES AquaNet: An open infrastructure for mesocosm experiments with high frequency sensor monitoring across lakes
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Limnology. Uppsala Univ, Dept Ecol & Genet, Erken Lab, Norrtalje, Sweden..ORCID iD: 0000-0001-9560-8374
Swedish Univ Agr Sci, Unit Field Based Forest Res, Asa & Svartberget Resarch Stn, Uppsala, Sweden..
Swedish Univ Agr Sci, Unit Field Based Forest Res, Asa & Svartberget Resarch Stn, Uppsala, Sweden..
Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, Uppsala, Sweden..
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2021 (English)In: Limnology and Oceanography: Methods, E-ISSN 1541-5856, Vol. 19, no 6, p. 385-400Article in journal (Refereed) Published
Abstract [en]

For aquatic scientists mesocosm experiments are important tools for hypothesis testing as they offer a compromise between experimental control and realism. Here we present a new mesocosm infrastructure-SITES AquaNET-located in five lakes connected to field stations in Sweden that cover a similar to 760 km latitudinal gradient. SITES AquaNet overcomes major hindrances in aquatic experimental research through: (i) openness to the scientific community, (ii) the potential to implement coordinated experiments across sites and time, and (iii) high-frequency measurements (temperature, photosynthetic photon flux density, turbidity and dissolved oxygen, chlorophyll a and phycocyanin concentrations) with an autonomous sensor system. Moreover, the infrastructure provides operational guidance and sensor expertise from technical staff, and connections to a multi-layered monitoring programme ("SITES Water") for each lake. This enables ecological observations from whole lake ecosystems to be compared with experimental studies aiming at disentangling major drivers and mechanisms underlying observed changes. Here we describe the technical properties of the infrastructure along with possibilities for experimental manipulations to tackle pressing issues in aquatic ecology and global change science. As a proof of concept, we also present a first mesocosm experiment across all five field sites with a cross-factorial design to evaluate responses of the sensor measurements to press/bottom-up (constant light reduction) and pulse/top-down (temporary fish predation) disturbances. This demonstrates the suitability of the infrastructure and autonomous sensor system to host modularized experiments and exemplifies the power and advantages of the approach to integrate a network of mecsocosm facilities with manageable costs across large geographic areas.

Place, publisher, year, edition, pages
WILEY John Wiley & Sons, 2021. Vol. 19, no 6, p. 385-400
National Category
Oceanography, Hydrology and Water Resources Ecology
Identifiers
URN: urn:nbn:se:uu:diva-454291DOI: 10.1002/lom3.10432ISI: 000647918900001OAI: oai:DiVA.org:uu-454291DiVA, id: diva2:1598057
Funder
Swedish Research Council, 2017-06421Available from: 2021-09-28 Created: 2021-09-28 Last updated: 2024-01-15Bibliographically approved

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Urrutia Cordero, PabloBertilsson, StefanColom-Montero, WilliamEklöv, PeterPierson, DonTranvik, LarsLangenheder, Silke

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Urrutia Cordero, PabloBertilsson, StefanColom-Montero, WilliamEklöv, PeterPierson, DonTranvik, LarsLangenheder, Silke
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