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DeLi Seminar

The seminar takes place in the DeLi Seminar Room (UZA 1, Althanstrasse 14, level 3), dates are usually Mondays, time is 12:00 (s.t.) - 13:00, unless noted otherwise. Seminars consist of a research presentation (~30 min) followed by opportunity for discussion. Then new MSc and PhD candidates present their yet undone projects in the planning phase and hope for constructive feedback (the Supporting Act, ~5min).

March 4: Rehearsals for the Science Day 2013:

Kristin Rath - Community composition of biofilm and stream water communities during biofilm succession

Bernhard Zens - Linking fish behaviour and hydraulics: Rheoreaction and movement patterns in fish larvae.

March 25: Roy Haggerty (Oregon State University) - Spatial Patterns of Microbial Respiration and Groundwater-Surface Water Interaction Revealed by the Smart Tracer Resazurin.

April 15: Jakob Schelker (SLU, Umea, Sweden) - Mobilization of Dissolved Organic Carbon in Northern Streams: Modeling Forest Disturbance and Scaling.

April 29: Judith Rosentreter (DeLi) - Assessing dissolved organic carbon properties and dynamics in hyporheic microcosms.

May 6: Irene Teubner (DeLi) - Impact of abiotic parameters on bacteria and viruses in a river- floodplain system.

May 13: William Hunter (DeLi) -Biofilms, clays and organo-mineral complexes: Interactions and implications for stream biogeochemistry.

Mary Kaggwa (DeLi) - Ecophysiological studies on Arthrospira fusiformis.

May 27: Carina Zittra (DeLi) - Species inventory, ecology and seasonal distribition patterns of Culicidae (Insecta: Diptera) in the National Park Donau-Auen.

Barbara Behounek (DeLi) - Terrigenous organic matter supports microbial metabolism in brown-water streams.

June 3: Irina Ludwig (DeLi) - Synergy of wastewater treatment and cultivation of microalgae.

June 10: Nadja Straubinger (DeLi) - Phytoplankton communities in Kenyan fish ponds with special focus on toxin producing Microcystis.

June 17: Linda Wilhelm (DeLi) - Being active as a microbe in glacier-fed streams.

June 24: Martin Gruber (DeLi) - Microbial influence on two saline alkaline Lakes of the Kenyan Rift valley.

Winter 2012/2013

October 15: Aaron Lechner & Hubert Keckeis (DeLi) - Spatial and temporal dispersal patterns of fish larvae in a large river.

Hubert Keckeis & Aaron Lechner (DeLi) - Larval drift and hydraulics: Dispersal patterns in an experimental velocity gradient.

November 12: Benjamin Mader (DeLi) - Effects of different LED lighting methods on microalgal growth in a small scale airlift photobioreactor.

November 19: Bohuslav Uher (DeLi) - Microalgae and biodeterioration of buildings.

November 26: Simon Vitecek (DeLi) - Untangling the phylogeny of aquatic mountain dwellers: the remarkable pedigree of the Drusinae (Insecta: Trichoptera).

December 3: Kathi Besemer (DeLi) - Microbial biodiversity distribution in stream networks.

December 10: Markus Gruber (DeLi) - Oocardium stratum - a fascinating desmid growing in tufa springs..

December 17: Jacqueline Jerney (DeLi) - Use of wastewater for microalgal growth - a review.

Irina Ludwig (DeLi) - Which type of wastewater is suitable for phototrophic algal growth?

January 14: Franz Loisl & Hubert Keckeis (DeLi) - Ergebnisse Projekt Witzelsdorf.

January 21: Georg A. Janauer (DeLi) - Long-time observations on macrophyte stands.

January 28: Bernhard Zens & Reinhard Krusch (DeLi) - To be announced.

Summer 2012

March 3 (Tuesday!): Amber J Ulseth (University of Wyoming, U.S.A.) - Modeling sources and fates of dissolved organic carbon in a large desert river.

March 26: Jacqueline Jerney (DeLi) - Algal community structure in artificial streams. Abstract.

April 30: Andreas Weilhartner (DeLi) - Carbon substrate utilization of microbial communities in gravel pit lakes.

May 7: Karoline Wagner (DeLi) - Stream biofilms: a prime site for priming.

May 14: Jana Wölfel (University of Rostock, Germany) - Primary production of Arctic microphytobenthos. Abstract.

May 21: Christina Fasching (DeLi) - Ancient terrestrial carbon in glaciers subsidises downstream metabolism in the European Alps.

June 4: Markus Gruber (DeLi) - Fatty acids in green algae under various conditions.

June 11: Martin Gruber (DeLi) - Dynamics of microbial compartments in two tropical alkaline saline lakes.

June 18: Martina Adlboller (DeLi) - Hydrologic stochasticity and biodiversity of algae in biofilm.

(Supporting Act: Judith Rosentreter)

June 25: Carina Zittra (DeLi) - Life cycles, habitat and distribution patterns of Culicidae in the National Park Donau-Auen.

Winter 2011/2012

October 10: Paul Humphries (Charles Sturt University, Australia) - River and floodplain research in the Murray Darling Basin, Australia.

November 7: Michael Jung (DeLi) - Habitat choice, population structure and host specificity of the freshwater pearl mussel in the river Waldaist (Austria). Abstract.

November 14: Gabriel Singer, Fred Omengo (DeLi) - Land use impacts the quality of organic carbon and its metabolism in the headwaters of the Mara-River catchment (Kenya).

November 21: Christina Fasching (DeLi) - Modern and ancient glacial organic carbon supports downstream metabolism in the European Alps.

November 28: Linda Wilhelm (DeLi) - Microbial diversity in glacial ecosystems.

December 5: Bertrand Guenet (Laboratoire des Sciences du Climat et l'Environment, France) - Interactions between labile and stable organic matter in soils and in aquatic systems: the same process for the same consequences?

December 12: Steve Omondi Oduor (Egerton University, Kenya) - Likely effects of climate change on the plankton community of alkaline-saline lakes in Kenya.

January 16: Iris Hödl (DeLi) - Illuminating pattern development in stream biofilms & Sabrina Hengsberger (DeLi) - Stream-network scale patterns of DOC properties and CO2-evasion potential

January 23: Maren Striebel (Wasserkluster Lunz) - Biodiversity, productivity and ecosystem functioning in lakes along a longitudinal gradient - BioGrad. Abstract.

January 30: Jacqueline Jerney & Magdalena Mayr (DeLi) - Fighting planktonic algae with benthic algae: A pilot study at the Heustadelwasser in Vienna.

Summer 2011

March 7: Marlen Böttiger (DeLi) - Analysis of hydroscape degradation after the disconnection of the Danube floodplain, Lobau post 1938. Abstract.
Peter Akoll (DeLi) - The ecology and pathology of helminths in Nile tilapia (Oreochromis niloticus) in Uganda. Abstract.

March 21: Hubert Keckeis (DeLi) - FWF-project: Modelling dispersal patterns of fish larvae in a large river. Abstract.
(Supporting Act: Sabrina Hengsberger – Network-scale CO₂ evasion.)

March 28: Monica Angom (DeLi) - Effects of climate change on the plankton community structure of alkaline, saline Lake Bogoria: Dilution experiment to study the effect of intense rainfall events. Abstract.

April 4: Caroline Linhart (DeLi) - Autecology of the desmid Oocardium stratum. Abstract.

(Supporting Act: Magdalena Mayr and Jaqueline Jerney - Using benthic algae for nutrient removal.)

April 11: Hannes Peter (University Uppsala) - Fragility of aquatic microbial communities towards a pulse perturbation. Abstract.

(Supporting Act: Fasil Degefu - Plankton Ecology of Highland Tropical Lakes of Ethiopia)

May 2: Anna Sieczko (DeLi) - Dissolved organic matter and bacteria in a riverfloodplain system. Abstract.

(Supporting Act: Martin Soneira - The implications of road lighting on Trichoptera (caddisflies))

May 9: Mia Bengtsson (DeLi) - Bacterial biofilms on the kelp Laminaria hyperborea. Abstract.
(Supporting Act: Carina Zittra - Life cycles, habitat and distribution patterns of Culicidae in the National Park Donau Auen)

May 23: Katrin Teubner - Do we understand the utilization of small-scale and short-lived phosphate sources in aquatic environments? Abstract.

May 30: Stefan Singer (DeLi) - Intercalibration and depth-distribution of fish in deep pools.

June 20: Markus Gruber (DeLi) - Comparison of fatty acid profiles with the phylogeny of different Botryococcus braunii (Trebouxiophyceae) strains and near-related genera; depiction of lipophilic substances with CLSM. Abstract.

June 27: Iris Hödl (DeLi) - Power laws describe cluster size distribution in stream biofilms.

Winter 2010/2011

November 8: Thomas Pröschold (Deli) – The systematics of Zoochlorella revisited employing an integrative approach. Abstract.

November 24, WED, 16.00 s.t. : Alain Tremblay (Hydro‐Québec, Montréal, Canada) – Net Greenhouse Gas Emissions From a Hydroelectric Reservoir in Canada, A World Premiere. Abstract.

November 29: Charlotte Chen (DeLi) – Discovering hidden diversity in Spirogyra.

December 6: Ed Hall (DeLi) – From cells to ecosystems – using stoichiometry to link microbial and ecosystem ecology.

December 13: Andreas Weilhartner (DeLi) – Mass balance and carbon dynamics of gravel pit lakes.

January 10: Christian Bauer (Bundesamt für Wasserwirtschaft, Ökologische Station Waldviertel) - Ponds between carp production and nature conservation. Abstract.

(Supporting Act: Florian Keil (DeLi) – Quantitative assessment of fish communities in confluences of the Danube River.)

January 17: Julia Birtel (DeLi) – Combining single cell phylogeny and stoichiometry by Transmission Electron Microscopy (TEM).

 (Supporting Act: Philipp Abel (DeLi) – Vergleich der Fischlarvendrift des Hauptarmes der Donau und der Schwechat.)

January 24: Stefan Singer (DeLi) - Comparison of low and high frequency sonar recordings for quantitative fish abundance estimates and fish depth distribution in deep pools in the Danube River. Abstract.

 
January 31: Elisa Vignaga (University of Glasgow) - Cohesive effects of biofilms in fluvial sediment. Abstract.

(Supporting Act: Advanced Limnology Project Proposals)