Session: Ultraviolet Radiation in Aquatic Systems: Abiotic and Biotic Effects. I

Room: Rotunda 1

Chair Michael Arts
 

11.00	M.T. Arts, F. Kasai, H. Rai, T. Hanazato, Effects of UV Radiation on Fatty Acids in Aquatic Biofilms in the Presence and Absence of Grazers
11.15	Dominic Hodgson, W. Vyverman, P.R. Leavitt, P.O. Montiel, Past Ultraviolet Radiation Environments in Antarctic Lakes
11.30	Julia Howitt, B.T. Hart, D. Baldwin, G. Rees, Photochemistry and Bioavailability of Dissolved Organic Matter- The role of Suspended Minerals
11.45	Isabelle Laurion, S. Roy, UV-Acclimation of Phytoplankton to Enhanced UVB Radiation
12.00	Alexandre Anesio, W. Graneli, Effects Of Interactions Between UV-B Radiation And Acidification On The Carbon Flux
12.15	Max Bothwell, L.B. Holtby, K. Nickolichuk, M.T. Arts, The Effect Of UV Radiation On The Physiological Conditions And Growth Of Juvenile Coho
12.30	Jean Frenette, Ultaviolet Radiation in Aquatic Systems: Abiotic and Biotic Effects
12.45	Howard Browman, C. Alonso, F. Beland, J.J. Cullen, R.F. Davis, J.H.M. Kouwenberg, P. Kuhn, B. McArthur, J.A. Runge, J.F. St. Pierre, Ultra Violet Radiation And The Early Life Stages Of Marine Crustacean Zooplankton And Ichthyoplankton - A Case Study From The Estuary And Gulf Of St. Lawrence, Canada

Session: Foodweb Dynamics and Predator-Prey Interactions 1

Room: Rotunda 4

Chair Tim Mihuc
 

11.00	Stuart Bunn, M.A. Winning, P.M. Davies, M.M. Douglas, R.A. O’Connor, R.W.J. Pidgeon, Food Web Of A Floodplain Wetland In The Wet-Dry Topics Of Australia And The Impact Of An Invasive C4 Pasture Grass
11.15	Joanne Clapcott, S. Bunn, Can C4 Plants Contribute to the Aquatic Foodwebs of Subtropical Queensland Streams?
11.30	Claudia Fellerhoff, M. Vob, Experimental Investigations of the Food Web Structure with Stable Isotope Measurements in the Pantanal Wetland( Mato Grosso, Brazil)
11.45	Timothy Moulton, R.M.L. Silveira, M.L. Souza, F.A.M. Krsulovic, E.F. Brito, S.B. Visoni, Exclusion Experiments using Electricity at Different Intensities Reveal a Trophic Cascade of Shrimp, Baetid Ephemeroptera and Periphyton in a Coastal Forest Stream, Rio De Janeiro, Brazil.
12.00	Frank Wilhelm, J. Hamann, C. Burns, Predations by Mysids on Amphipods: An Overlooked Interaction in Aquatic Ecosystems
12.15	M. Gophen, The Trophic Status Of Zooplankton Communities In Lake Kinneret (Israel)
12.30	Gary Sprules, Energy Flow Through The Lake Erie Pelagic Food Web - Balancing Supply And Demand.
12.45	James Easton, M. Gophen, Trophic Relations Between Zooplankton and Bleaks (Acanthobrama spp.) in Lake Kinneret (Israel).

Session: Stability of Freshwater Systems

Room: Humanities 1

Chair Robert Portielje
 

11.00	David Hamilton, C. Spillman, K.L. Prescott, T.K. Kratz, J.J. Magnuson, Effects of Atmospheric Nutrient Inputs on Trophic Status of Crystal Lake, Wisconsin
11.15	Anders Hargeby, I. Blindow, Climate Variation and a Structural Shift from Clear Water to Turbid Conditions in a Shallow Eutrophic Lake
11.30	Chris Gibson, R.H. Foy, Stability Of A Planktonic Diatom Flora During The Holocene

Session: Ecology of Large Rivers I

Room: Humanities 4

Chair Ben Gawne
 

11.00	Ben Gawne, Primary and Heterotrophic Production in The Murray River: Do the Models Help?
11.15	Harry Leland, J.W. Frey, D.K. Mueller, Phytoplankton Succession and Dynamics in Relation to Nutrient Supply and other Environmental Factors in the White River, Indiana (USA)
11.30	Eddy Lammens, C. Dijkers, Food Web Aspects of The River Rhine in the Period 1970-2000
11.45	Joep De Leeuw, E.M. Harthers, H.V. Winter, Habitat and Connectivity Constraints in Riverine Fish Populations
12.00	C. Merrick, R. Oliver, Whole River Metabolism In The Regulated Lower River Murray Australia
12.15	D. Balbi, B.A. Whitton, Relationship Between Phytoplankton And Submerged Macrophytes In The Eutrophic Lowland River Nene, UK
12.30	S. Findlay, Functional Assessment of Tidal Freshwater Wetlands: Guidelines for Restoration (or not)
12.45	Matthias Brunke, H. Fischer, S. Wilczek, M. Pusch, Benthic And Hyporheic Habitats Of A Large Lowland River ( Elbe, Germany ): Influence Of River Engineering

Session: Restoration Ecology I

Room: Humanities 5

Chair Sam Lake
 

11.00	M. Casanova, M.D. De Winton, J.S. Clayton, Do Charophytes Clear Turbid Waters?
11.15	D. Berge, G. Halvorsen, Floating Artificial Vegetation Stands A Measure to Restore Lost Littoral Production in Regulated Lakes
11.30	Sam Lake, B.J. Downes, A. Glaister, Restoration Ecology in Streams- Problems and Prospects
11.45	Hans Ole Hansen, River Restoration in Europe - What is Going On?
12.00	Emily Stanley, M. W. Doyle, After The Fall: Using Ecological Principles Of Disturbance To Understand Effects Of Dam Removal On Lotic Ecosystems
12.15	Richard Kiesling, An Assessment of the Hydrological Modification and Environmental Flow Protection in the Trinity River, Texas
12.30	Timo Kairesalo, M. Fernandez, S. Romo, D. Stephen, a. Stahl-Delbanco, Potential Deleterious Effects of Restoration of Submerged Plants through Mobilisation of Heavy Metals from the Sediments

Session: Biology and Ecology of Aquatic Organisms I

Room: Humanities 6

Chair Ed Maly
 

11.00	Ed Maly, T. Chalmers, P. Lorimer, The Influence of Swimming Behaviour in the Calanoid Diaptomus leptopus on Rates of Consumption by its Predators
11.15	Maria Melao, O. Rocha, Life History And Production Of Cladocera Species In A Shallow Tropical Reservoir
11.30	Tom Davidson, C.D. Sayer, M. Perrow, A Quantitative Analysis of what Structures Zooplankton Communities in Shallow Lakes
11.45	S. Declerck, V. Geenens, N. Podoor, J.M. Conde-Porcuna, L. De Meester, Density Dependence in the Zooplankton Dynamics of a Hypertrophic Lake: Explorative or Interference Competition?
12.00	M.J. Caramujo, I. Munoz, W. Admiraal Selective Feeding of Harpacticoid Copeods on Benthic Microalgal Assemblages
12.15	Ryszard Kornijow, B. Moss, Do Night Oxygen Depletions Contribute to the Summer Drop in Abundance of Zoobenthos in Lake Littoral
12.30	N. Walz,  I. Jager, A bioenergetic approach in phantom midge larva chaoborus flavians:  respiration and ingestion rates.

 
 
 

Session: Integrated Catchment Studies

Room South 1

Chair Patricia Geraghty
 

11.00	Patricia Geraghty, J.M. Doolan, PJ. Wilson, Index Of Stream Condition: A New Assessment technique
11.15	Richard Hauer, D.B. Fagre, J.A. Stanford, Climatic Patterns, Hydrological Processes and Nutrient Dynamics in a Pristine Montane Catchment in Northwest Montana, USA
11.30	Alison Joubert, J. Turpie, Catchment Management Decision-Making: Potential Processes and Tools
11.45	Patricia Geraghty, Catchment Management In Victoria, Australia
12.00	Gene Likens, D.C. Busco, J.W. Hornbeck, Variation in Streamwater Chemistry Across the Hubbard Brook Valley, New Hampshire
12.15	M. Dokulil, K. Teubner, Temporal Coherence of Lake Variables in an Austrian Lake District
12.30	Richard Kiesling, A.M. McFarland, Phytoplankton Community Structure of Small Reservoirs as a Function of Landuse and Nutrient Loading
12.45	Gunnhild Riise, D. Hongve, E. Lund, C. Midtsundstad, R. Sorensen, F.F. Straith, Hydrochemical Changes In Puttjern Caused By Changed Groundwater Level

Session: Ultraviolet Radiation in Aquatic Systems: Abiotic and Biotic Effects. II

Room: Rotunda 1

Chair Ruben Sommaruga
 

2.00	Isabelle Laurion, R. Lackner, A. Lami, R. Sommaruga, UV- Protecting Strategies of Phytoplankton in Mountain Lakes
2.15	Robert Wetzel, N.C. Tuchman, Effects of CO2 Enrichment on the Production of Humic Degradation Products, their Natural Photodegredation and Biological Utilization
2.30	Ruben Sommaruga, Effects Of UV Radiation On Heterotrophic NanoflagellatesEffects Of UV Radiation On Heterotrophic Nanoflagellates
2.45	Angela Wulff, Is there a Coupling Between Increased UVB radiation and Toxic Algal Blooms
3.00	Blair Holtby, M. Bothwell, K. Nickolichuk, The Effect Of UV Radiation On Behavioral Interactions Of Juvenile Coho Salmon In Mesocosm Flumes
3.15	Barbara Tartarotti, H.E. Zagarese, I. Laurion, R. Sommaruga, Mycosporine-like Amino Acids in Zooplankton of Lakes in the Northern ans Southern Hemisphere
3.30	Warwick Vincent, M. Kumagai, C. Belzile, K. Hayakawa, Effects of Scattering and Absorbtion on UV Attenuation in Lake Biwa.
3.45	A. Gaberscik, M. Germ, Z. Mazej, A. Bergoc, D. Drmaz, The Protection Against UV-B Radiation And Demand For energy In Aquatic Primary Producers
4.00	Nils Ekelund, Impacts of UV-radiation on photosynthesis of Fucus vesiculosus at low temperature and salinity.

Session: Foodweb Dynamics and Predator Prey Interactions 11

Room: Rotunda 4

Chair Mohiuddin Munawar
 

2.00	Mohiuddin Munawar, I.F. Munawar, R. Dermott, M. Fitzpatrick, H. Niblock, S. Carou, Changing Microbial Food-Web of the North American Lakes: Current Status of Lake Erie
2.15	Klaus Juergens, H. Boriss, Field Experiments and Simulation Models Reveal the Impact of Predation and Productivity on the Development of Grazing-Resistant Bacteria
2.30	Heike Zimmermann-Timm, H. Holst, Interactions Between Well Fed and Not Eaten
2.45	Scott McNaught, D. Pavlik, A.S. McNaught, Avoidance Behavior of Daphnia In Response To Chemicals Released By Chaoborus During Feeding
3.00	Vladimir Matveev, G. Closs, J. Lieschke, M. Shirley, N. Mykytowich, Are The Effects Of Fish On Zooplankton Significant In the Pelagic Food Webs Of Australian Reservoirs?
3.15	Monika Winder, P. Spaak, Diel Vertical Migration: Not a Predation Avoidance Astrategy in Alpine Lakes?
3.30	T. Kahn, Carp and its impact on lake ecosystems in Western Victoria, Australia.
3.45	Jackie Parry, K. Heaton, J. Drinkall, A. Hunt, Protozoan Participation In Biofilm Dynamics

Session: Modelling Aquatic Systems

Room: Humanities 1

Chair Fred Recknagel
 

2.00	Anne Roue, A. Richardot, D. Debroas, A. Thouvenot, J. Devaux, M. Poulin, Functioning of Lacustrine Ecosystem in a Newly -Flooded Reservoir(SEP, PUY DE DOME . France): Modelling of Carbon Flux of the Different Food Web Compartments.
2.15	Brian Henderson-Sellers, The Use of Object Technology in Modelling Aquatic Systems
2.30	Sovan Lek, Predictive Methods of Fish Community Structure and Diversity of Fish Assemblages in Garonne River (France)
2.45	K. Beaugelin-Seiller, C. Rommens, Growth of Chub (Leuciscus cephalus): The Lower Rhone (South France), a Very Favourable Environment
3.00	Takashi Asaeda, L.H. Nam, S. Karunaratne, J. Manatunge, Modelling the Growth and Decomposition Processes of Phragmites australis and Resulting Nutrient Budgets
3.15	D. Banas, G. Masson, L. Leglize, S. Didier, F.C. Pihan, Sedimentation and Retention of Matter in Extensively Managed Fish Ponds
3.30	John Stark, K.A. Shearer, J.W. Hayes, Are Aquatic Invertebrate Drift Densities Uniform? Implications For Salmonid Foraging Models.

Session: Water Resources and Sustainability I

Room: Humanities 4

Chair Nicholas Edgar
 

2.00	Nicholas Edgar, Sustainable Catchment Management: A role For Volcanic Eruptions
2.15	Curt Forsberg, SIL and The International Water Academy As Actors For Sustainable Water Resources
2.30	Ronald Griffiths, Estimating The Carrying Capacity of Catchments for Agriculture Based on Water Quality
2.45	Tore Lindholm, M. Degerlund, L. Spoof, J. Meriluoto, A Century of Water Quality Changes in a Coastal Lake with Toxic Planktothrix
3.00	Alison Sartonov, D. Whelan, Lake Baikal: Science, Politics And The Future
3.15	Noel Burns,The detection of Trophic Level Changes in Reservoirs
3.30	Charles Burns, LAKEWATCH-Software for the Analysis of Lake and Reservoir Monitoring Data

Session: Ecology of Large Rivers II

Room: Humanities 5

Chair James Ward
 

2.00	Irene Badgen, Limnological Education On A Southern South American Mighty River Basin: A Pioneer Success Experience
2.15	J.V. Ward, C.T. Robinson, K. Tockner, Applicability of Ecological Theory to Riverine Ecosystems
2.30	Anja Scherwass, H. Arndt, Microbial Food Web In Rivers: Potamoplanktic Ciliates And Mechanisms Of Their Control In The River Rhine (Germany).
2.45	Simon Treadwell, Photosynthetic Characteristics of Biofilm Growing on Large Woody Debris in an Australian Lowland River System.
3.00	Martin Thoms, R.A. Ogden, The importance of inundation to nutrient dynamics in large river floodplain ecosystems.
3.15	Dimitry Van Der Nat, K. Tockner, J.V. Ward, P.J. Edwards, Quantification of Large Woody Debris in Large Floodplain Rivers : An Areal-Based Approach Using GPS
3.30	D.G. Williams, P.M. Bowen, J. Frankenberg, Magnitude and Seasonality of Carbon Inputs to the Murray River from Riparian and Emergent Vegetation

Session: Restoration Ecology II

Room: Humanities 6

Chair M. Miracle
 

2.00	Carl Kruk, N. Mazzeo, G. Lacerot, J. Gorga, F. Scasso, L. Rodriquez, Sucession of Phytoplankton Associations in a Subtropical Shallow System in Restoration Process (Lake Rodo, Uruguay)
2.15	Tom Frisk, A. Bilaletdin, A. Paananen, H. Kaipainen, Possibilities of Restoration of Lake Sila in Southern Latvia

Session: Biology and Ecolgy of Aquatic Organisms II

Room: South 1

Chair David Lasenby
 

2.00	Grant Hose, E. Turak, Catchment-Level Patterns in the Functional Structure of Macroinvertebrate Communities
2.15	David Lasenby, A. Longmuir, R. Hughes, Determination of Ingestion of Trace Metals by the Amphipod Gammarus pseudolimnaeus Using Laser Ablation Sampling- Inductively Coupled Plasma Mass Spectrometry
2.30	Niall Connolly, R. G. Pearson, The Effects Of Nitrogen And Phosphorus Enrichment On Microbial Biomass And The Nutrition Of Anisocentropus kirramus (Trichoptera) In A Tropical Rainforest Stream.
2.45	Michael Crossland, R.G. Pearson, Responses Of Tropical Stream Macroinvertebrates To Low Levels Of Dissolved Oxygen
3.00	Edward Tsyrlin, I Campbell, Recolonisation Patern Of Macroinvertebrates On Submerged Wood In The Acheron River
3.15	Sabine Koerner, Herbivory on Submerged Macrophytes- Who's to Blame?
3.30	Maria-Monica Tudorancea, C. Tudorancea, Are the Chironmidae Larvae Bioindicators of the Water Quality in Running Water Under Urban Impact

Session: Micro, Nano and Pico Scale Limnology

Room: Rotunda 1

Chair Iwona Jasser
 

4.30	K.J. Harper, J. Drinkall, J. Parry, Community Structure and Diversity of Picocyanobacteria in a Eutrophic Lake
4.45	Ulrich Schiewer, D. Rentsch, S. Gors, R. Schumann, Seasonal Changes Of Particles And Bacterial Population In Fluffy Sediment Layers From Shallow Brackish Waters.
5.00	Karen Wiltshire, The Microscale Distribution of Algae and Pigments in Sediments
5.15	Jarka Komarkova, Do the Blue-Green Picoplanktic Species Exist in Eutrophic Reservoirs?
5.30	Eduardo Vicente, A. Camacho, J.J. Garcia-Gil, M.R. Miracle, X. Vila, C. Borrego, Factors determining changes in the Abundance and Distribution of nano and pico planktonic phototrophs in Lake El Tobar (Central Spain).

Session: Foodweb Dynamics and Predator Prey Interactions III

Room: Rotunda 4

Chair Reglindis Zehrer
 

4.30	Reglindis Zehrer, C.W. Burns, S. Levine, Impact of resuspended sediment on the microbial loop in a shallow lake
4.45	William Elvey, The Top-Down Effects Of Trout Predation Under Variable Canopy And Macroinvertebrate Community Compositions.
5.00	Derek Turnbull, L. Barmuta, Predator Preference for Prey and Predator-Predator Interactions.
5.15	Mohiuddin Munawar, R. Dermott, Structural Changes in Lake Erie Food-Web due to Biological Invasions
5.30	Jan L'Abee-Lund, P. Aass, H. Saegrov, The Rise of a Piscivorous Brown Trout Population
5.45	Andrea Schmitt, J. Udy, Effects of Nutrient on Trophic Structures of Aquatic Food Webs

Session: Stream Nutrients

Room: Humanities 1

Chair Phillip Ford
 

4.30	James Udy, M. Bartkow, J. Clapcott, C. Fellows, S. Bunn, Can Denitrification In Stream Sediments Help Reduce Eutrophication?
4.45	Christy Fellows, C.N. Dahm, H.M. Valett, Ecosystem Metabolism and Nitrate Retention in Headwater Streams
5.00	Sebastien Lamontagne, A. Herczeg, C. Conway, J. Pritchard, F. Leaney, J. Dighton, J. Jiwan, Exchange of Water and Nutrient Transformations in a Sub-Tropical Stream Alluvial Aquifer System
5.15	Ellie Prepas, B. Pinel-Alloul, D. Planas, G. Methot, S. Paquet, S. Reedyk, N. Carmosini, K. Gibson, The Impact Of Watershed Disturbance On Water Quality And Planktonic Communities On The Boreal Plain.
5.30	Phillip Ford, P.W. Bormans, A. Bormans, G.J. Hancock, Para Grass (Brachiaria mutica) and Nitrogen Cycling in a Tropical Barrage

Session: Water Resources and Sustainability II

Room: Humanities 4

Chair Stuart Bunn
 

4.30	P. Doering- Aries, M. Cardinale, M. Kastowsky, M. Schatz, S.F. Hamrin, Ageing Fish Faster- A Proof with Known Age Specimen
4.45	Abdel Amer, Drainable And Water Filled Pores As Related To Water Suction Conductivity And Storage In Agricultural Soils Of Nile Delta
5.00	Tim Kratz, D.W. Bolgrien, S. Giblin, J. O’Leary, Human Influences on the Spatial Distribution of Coarse Woody Debris in Lakes in Northern Wisconsin, USA
5.15	Serban Gheorge, V. Sorocovschi, The Evolution of The Lakes Within Transilvania Valley
5,30	Valery Vuglinsky, Reservoirs And Environment (Hydrological Aspects Of Interaction)
5.45	H. Helminen, T. Honkanen, Role of Aqualturee in Eutrophication Process of the Archipelago Sea, SW Finland

Session: Ecology of Large Rivers III

Room: Humanities 5

Chair Brian Whitton
 

4.30	Markus Weitere, H. Arndt, Characteristics of Pelagic Heterotrophic Nanoflagellates (HNF) in a Large River (River Rhine, Germany): What causes the High In Situ Losses
4.45	Brian Whitton, D.M. Balbi, Relationship Between Phytoplankton and Submerged Macrophytes in the Eutrophic Lowland River Nene, UK
5.00	Michael Reid, John Tibby, J. Fluin, R. Ogden, P. Kershaw, Long-Term Perspectives On Human Impacts On Floodplain-river Ecosystems, Murray-Darling Basin, Australia
5.15	Diane Whited, J. Stanford, J. Kimball, Application of Airborne Multi-Spectral Digital Imagery to Characterize Riverine Habitat Under Variable Hydrological Flows
5.30	Irene Badgen, Scientific And Environmental Wetland Education In Southern South America. A Pilot Pioneer Success Experience
5.45	H. M. McGinness and M. C. Thoms Water resource development and floodplain carbon dynamics.

Session: Restoration Ecology III

Room: Humanities 6

Chair Tom Murphy
 

4.30	Tom Murphy, M. Kumagai Spatial and Temporal Variation in Redox in Lake Biwa Sediments.
4.45	B.B. Jana, S. Ganguly, Assessment of Reclamation Efficiency in Sewage Fed Aquaculture Ponds Monitored Through Nitrification Pathways
5.00	Guangwei Huang, Enhancement of Lake Environment by using Reed-Wetland
5.15	Kwang-Seuk Jeong, S-B. Park, Ecological Restoration (habitat creation) Project of the Nakdong River Estuary(Eulsook Island, S.Korea)
5.30	Tej Shrestha, Conservation of the Fishes of the Running Waters of Nepal

 

Session: Biology and Ecology of Aquatic Organisms III

Room: South I

Chair P Biro
 

4.30	Nils Okun, T. Mehner, Reed As Alternative Habitat For Young Fish In A Shallow Eutophic Lake
4.45	Kirk Lohman, Annual Variation in the Density of Stream Tadpoles in a Northern Idaho (USA) Watershed
5.00	D. Baumgaertner, K.O. Rothhaupt, Trophic Interactions Between Burbot (Lota lota) and the Macroinvertebrate Community in a Large Lake Littoral Zone Trophic Interactions Between Burbot (Lota lota) and the
5.15	P. Biro, Fish Species Assemblages in Inflowing Waters of Lake Balaton (Hungary)
5.30	Gercilia Soares, A.C. Oliveira, W.J. Junk, Seasonal Variation In The Diet Of Fishes Of A Central Amazonian Floodplain Lake
5.45	V.M. Sadyrin, Limnological Characteristic and Fish Productivity of North Glacial Lakes of Komi Republic