Effects of CO2 on particle size distribution and phytoplankton abundance during a mesocosm bloom experiment (PeECE II) A. Engel, K. Schulz, U. Riebesell, R. Bellerby, B. Delille, and M. Schartau Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany Leibniz Institute of Marine Sciences, IFM-GEOMAR, Kiel, Germany Bjerknes Centre for Climate Research, University of Bergen, B...

The findings of a series of studies investigating the clogging of leachate collection and drainage systems for municipal landfill sites are described. Batch tests, column studies, and field-scale “mesocosm” test cells were used to study the development of a thick microbial biofilm covering the surfaces and filling the pore space of the granular drainage media. Within this biofilm, anaerobic mic...

The thesis analyses effects of pollutants on natural plankton communities on the basis of three independent mesocosm experiments and a series of laboratory experiments performed in Denmark and Greenland. The work focus on integrating functional and structural measures of community responses to reveal indirect effects and co-effects with the abiotic environment on three trophic levels, namely ba...

A nonparametric method and a Bayesian hierarchical modelling method are proposed in this paper for the detection of environmental thresholds. The nonparametric method is based on the reduction of deviance, while the Bayesian method is based on the change in the response variable distribution parameters. Both methods are tested using macroinvertebrate composition data from a mesocosm experiment ...

1 This study used an experimental model of a constructed wetland to evaluate the risk of 2 mercury methylation when the soil is amended with sulfate. The model was planted with 3 Schoenoplectus californicus, and the sediments were varied during construction to 4 provide a control and two levels of sulfate treatment. This allowed characterization of 5 sulfate’s effect on mercury bioaccumulation ...