May 16th 2022


Archeological Museum D. Diogo de Sousa, Braga, Portugal

Plenary Speakers


University of Maryland


University of Georgia


University of Barcelona


University of Koblenz - Landau


Northern Arizona University

More Info

Global Change and Terrestrial-Aquatic Connections

Welcome to the 9th Plant Litter Processing in Freshwaters Congress Archeological Museum D. Diogo de Sousa, Braga, Portugal from 16th to the 19th of May 2022

Dear colleagues and friends,

After the survey with the PLPF-9 delegates, we have made the decision to postpone the 9th Plant Litter Processing in Freshwaters Congress to 16-19 of May 2022, in an attempt to have a face-to-face meeting at the Museum D. Diogo de Sousa, Braga, Portugal.

The focal theme of the congress is Global Change and Terrestrial-Aquatic Connections aiming to encourage discussions on global challenges related to environmental degradation, climate, biodiversity loss, clean and accessible water for all within the Sustainable Development Goals. 

The meeting will be held at the historical city of Braga with a beautiful city center. Braga is half an hour from the Peneda-Gerês National Park, half an hour from the Atlantic coast, and next to the Bom Jesus de Braga, classified as World Heritage site by UNESCO.

We are looking forward to welcoming you to this exciting event.

On behalf of the organizing committee,

Fernanda Cássio and Cláudia Pascoal


  • Biodiversity
  • Carbon and energy budgets
  • Stoichiometry
  • Microbial diversity and processes
  • Ecosystem services
  • Anthropogenic impacts
  • Multiple stressors
  • Climate change
  • Temporary rivers
  • Invasive species
  • Ecotoxicological challenges
  • Stable isotopes
  • Omics


Registration 9:00 - 10:30

Coffee 10:30 - 11:00

Opening Session 11:00 - 11:45

Plenary Session with Chris Swan 11:45 - 12:45

Deep Dimensions of Biodiversity and After Life Effects on Ecosystem Processes

Presented by Cristina Canhoto

Lunch 12:45 - 14:15

Regular Session moderated by Eric Chauvet

14:15 - O1. Alencar, Mery: Evaluating the non-additive effects on litter decomposition: a meta-analyses approach compares aquatic and terrestrial ecosystems

14:30 - O2. Seena, Sahadevan: Inter- and intraspecific functional variability of aquatic hyphomycetes and freshwater ecosystem processes

14:45 - O3. Oester, Rebecca: Riparian vegetation affects macroinvertebrate community composition and leaf litter breakdown rates in headwater streams

15:00 - O4. Abelho, Manuela: Does the effect of leaf mixtures on leaf decomposition change along the riparian-stream meta-ecosystem?

15:15 - O5. Rota, Thibaut: Using individual-based traits can change our inference of relationships between shredder functional diversity and leaf-litter decomposition in streams

15:30 - O6. Alonso, Alberto: Effects of plantations on phytotelmata in Northern Iberian Peninsula

Discussion 15:45 - 16:00

Coffee-Break 16:00 - 16:30

Regular Session moderated by Andreas Bruder

16:30 - O7. Gessner, Mark: Microbial colonization and decomposition dynamics of emergent macrophyte and riparian tree leaf litter in the littoral zone of a lake

16:45 - O8. Fernandes, Isabel: Phylogenetics and biogeography of aquatic hyphomycetes based on new ITS rDNA barcodes

17:00 - O9. Anderson, Jennifer: Broad diversity and a distinctive molecular toolkit in the ascomycete genus Tetracladium

17:15 - O10. Mariz, Joana: A novel approach for the identification and documentation of aquatic hyphomycetes diversity

Discussion 17:30 - 17:45

Posters Session 17:45 - 18:30

moderated by Isabel Fernandes

P1. Chauvet, Eric: Distribution patterns of freshwater lichens across 4 European ecoregions

P2. Hungate, Bruce: Bringing the quantitative back to ecology: isotopes + ‘omics = insights

P3. Ramião, José Pedro: Hydrological models can help to improve the design of studies on climate change impacts on plant litter decomposition

P4. Ferreira, Verónica: Colonization and decomposition of litter produced by invasive Acacia dealbata and native tree species by stream microbial decomposers

P5. Oliveira, Ricardo: Intra-specific leaf trait variability controls leaf decomposition of Vitis vinifera L. cultivars in streams

P6. Moretti, Marcelo: Freshwater crabs from Atlantic Forest streams can process recalcitrant leaf litter but prey more on caddisfly shredders with low protective cases

P7. Bruder, Andreas: The collection of aquatic hyphomycete pure cultures at SUPSIs Institute of Microbiology

Welcome Reception 18:30 - 20:30

Plenary Session with Mirco Bundschuh 9:00 - 10:00

Do Chemical Stressors Impact Carbon and Nutrient Dynamics in Freshwaters and Beyond?

Presented by Fernanda Cássio

Regular Sessions moderated by Mark Gessner

10:00 - O11. Batista, Daniela: Can mixtures of micro and macroplastics impact freshwater decomposers?

10:15 - O12. Trabulo, José: How do microplastics and silver nanoparticles affect microbial decomposition of plant-litter in streams?

10:30 - O13. Barros, Diana: A systems toxicology approach discloses distinct mechanisms of toxicity of silver nanoparticles in freshwater microbes with different background

10:45 - O14. Wang, Ziming: Effects of Environmental Stressors on the Optimal N/P Ratios of Microbial Decomposers

Discussion 11:00 - 11:15

Coffee-Break 11:15 - 11:45

Regular Sessions moderated by Arturo Elosegi

11:45 - O15. Canhoto, Cristina: Salt pulses effects on in-stream litter processing: the importance of leaf quality

12:00 - O16. Graça, Diana: Impacts of global change related multi-stressors on the activity of fungal decomposers in freshwaters

12:15 - O17. Bruder, Andreas: Effects of multiple stressors on benthic communities, food webs, and processes in small agricultural streams

12:30 - O19. Gutiérrez-Canovas, Cayetano: Multiple stressors boost river metabolism and greenhouse gas emissions

Discussion 12:45 - 13:00

Lunch 13:00 - 14:15

Plenary Session with Amy Rosemond 14:15 - 15:15

Quantifying Global Change Stressor Effects on the Rates and Fates of Terrestrial Litter Inputs in Streams

Presented by Cláudia Pascoal

Regular Sessions moderated by Verónica Ferreira

15:15 - O20. Danger, Michael: Temperature and nutrient effects on the relative importance of brown and green pathways for stream ecosystem functioning: a mesocosm approach

15:30 - O21. Pradhan, Arunava: Warming reduces functional but not taxonomic diversity of fungal assemblages decomposing leaf-litter in headwater streams

15:45 - O22. Elosegi, Arturo: Plant litter processing in freshwaters drives multiple environmental consequences of a large dam decommissioning

16:00 - O23. Pereira, Ana: Invasion of native riparian forests by Acacia species: implications on litterfall biomass, water N concentration, aquatic decomposers, and litter decomposition in streams

Discussion 16:15 - 16:30

Coffee-Break 16:30 - 17:00

Posters Session 17:00 - 18:00

moderated by Arunava Pradhan

P8. Arias, Rebeca: Are the decomposition rates different between artificial and natural wetlands? The effect of agricultural runoff

P9. Cássio, Fernanda: Interactive effects of microplastics and ciprofloxacin on aquatic microbial decomposers

P10. Cerroti, Francesca: MULTIBEF: Assessing multiscale B-EF relationships in water-filled tree holes under multiple stressors

P11. Alonso, Alberto: Warming overrides eutrophication effects on alder litter processing in streams

P12. Guerra, Alisson: Chlorothalonil fungicide effects on microbial decomposition and aquatic hyphomycetes communities: temperate vs tropical microcosm experiments

P13. Guerra, Alisson: Effects of a common fungicide (Chlorothalonil) on litter decomposition rate and survival of detritivore invertebrates: temperate vs tropical microcosm experiment

P14. Barros, Juliana: Coping mechanisms of freshwater fungi to metals

P15. Jabiol, Jeremy: Pesticide contamination in agricultural streams revealed by integrative chemical, structural and functional indicators

Plenary Session with Jane Marks 9:00 - 10:00

Revisiting the Fate of Dead Leaves in Streams: Lessons from Stable Isotope

Presented by Manuel Graça

Regular Sessions moderated by Marcelo Moretti

10:00 - O24. Moulton, Timothy: Trophic cascades and strong interactions in tropical streams and their consequences for material processing and productivity

10:15 - O25. Cereghetti, Eva: Processing of leaf litter in headwaters over a year: changes in litter quality, decomposition rates and shredder community structure

10:30 - O26. Marchand, Théo: Mandibular Traits along with Resource Mechanical Resistance Explain Consumption of Dead Leaves by Macrodetritivores

10:45 - O27. Pardo, Isabel: Seasonality in alder decomposition in headwaters: interactions among invertebrates, food quality and temperature

Discussion 11:00 - 11:15

Coffee-Break 11:15 - 11:45

Regular Sessions moderated by Manuela Abelho

11:45 - O28. Moretti, Marcelo: No evidence of litter bag shape on leaf breakdown and invertebrate colonization in an Atlantic Forest stream

12:00 - O29. Guerrero-Brotons, Mercedes: Effect of the substrate on litter decomposition and DOM chemical quality in constructed wetlands

12:15 - O30. Gwendoline, David: Effect of salinization and flow velocity changes on leaf litter decomposition in experimental flow-through systems

12:30 - O31. Gómez, Rosa: Effect of salinity on woody litter decomposition and DOM quality in an arid Mediterranean stream

Discussion 12:45 - 13:00

Lunch 13:00 - 14:15

Plenary Session with Dani Von Schiller 14:15 - 15:15

Carbon Cycling in Intermittent Inland Waters

Presented by Tano Gutierrez

Regular Sessions moderated by Dani Von Schiller

15:15 - O32. Viza, Aida: How does flow intermittence affect organic matter decomposition along a Mediterranean basin?

15:30 - O33. Ferreira, Verónica: Leaf litter decomposition along a gradient of stream intermittency in a karst region of central Portugal

15:45 - O34. del Campo, Rubén: Exploring leaf litter decomposition across drying river networks

16:00 - O35. Arias-Real, Rebeca: Fungal biodiversity mediates the effects of drying on freshwater ecosystem functioning

16:15 - O36. Simões, Sara: Hydrological contraction patterns and duration of drying period shape microbial-mediated litter decomposition

Discussion 16:30 - 16:45

Coffee-Break 16:45 - 17:15

Round Table 17:15 - 18:00

Global Change and Terrestrial-Aquatic Connections: What´s on the Horizon?

With Jane Marks, Chris Swan, Mark Gessner, Andreas Bruder, Manuel Graça, Cláudia Pascoal, Fernanda Cássio

Closing Session and Awards 18:00 - 18:30

Congress Dinner 20:00

Field Trip 9:00 - 17:00

Event Location

Archeological Museum D. Diogo de Sousa
Braga, Portugal

Get Direction

Event Sponsors

Subscribe to the Congress Newsletter to Get Updates