TemBi 2014 mesocosm study: Summer storm impact on Zooplankton abundance in Lake Stechlin

• Main Authors: Sareyka, Jörg, Huth, Elfi, Nejstgaard, Jens Christian, Peter, Kasprzak, Grossart, Hans-Peter
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: ArcTrain; BIBS; Bridging in Biodiversity Science; Cladocera; biomass; wet mass; Climate change; Climate driven Changes in Biodiversity of Microbiota; Copepoda; cyanobacteria; DATE/TIME; Day of experiment; DCM; DEPTH; water; Description; disturbance; enclosure; Enclosure experiment; Germany; lake; Lake_Stechlin; mesocosm; Mesocosm label; NITROLIMIT; Oxygen/Nitrogen ratio; Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic; See description in dataset comment; Stickstofflimitation in Binnengewässern; summer storm; TemBi; Treatment; Zooplankton; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.930999; https://doi.org/10.1594/PANGAEA.930999

We simulated an experimental summer storm in large-volume (~1200 m3, ~16m depth) enclosures in Lake Stechlin by mixing deeper water masses from the meta- and hypolimnion into the mixed layer (epilimnion). The mixing included the disturbance of a deep chlorophyll maximum (DCM) which was present at the same time of the experiment in Lake Stechlin and situated in the metalimnion of each enclosure during filling. Copepod and Cladocera biomass was monitored for 42 days after the experimental disturbance event (Utermöhl counting at 60x magnification and biomass calculation from length-dry mass relationships). Sampling was performed using a 90 µm mesh size Apstein-cone.