Thursday, 22nd May Society for Freshwater Science 2025 Annual Meeting

• Challenges and Opportunities in the Management of Natural Protected Areas in Northeast Puerto Rico - Ricardo Colón-Rivera

• Persistent Mercury and Rising Heavy Metal Risks Downstream of Cyanidation Plants in a Major ASGM-Impacted River - Shannon Plunkett
• Connecting stream CO₂ dynamics to landscape mosaics and hydrologic regimes - Erin R Hotchkiss
• Quantifying autotrophic nitrate uptake in NEON streams across the United States - Christa L. Torrens
• Subwatershed landscape characteristics drive nutrient export in spatially unstable urban streams - Caroline G.T. Anscombe
• Dynamic hydrology shapes redox processes in a Great Lakes coastal estuary - Lauren E Kinsman-Costello
• Variable connectivity to the open water environment drives greenhouse gas concentrations in Great Lakes coastal wetlands - Amanda K Suchy

Additional Session Chair: Erik Pilgrim

• AI-Powered Meta-Analysis of eDNA Metabarcoding: Methodological Insights and Comparisons to Traditional Methods - Kaley A Cave
• The Beaver’s Blueprint: Monitoring Water Quality and Biodiversity with eDNA Technology - Alyssa Baldwin
• eDNA-based landscape metagenetics reveals aquatic invertebrate dispersal ability - Jared W Freedman
• Fish metapopulations under river fragmentation: Species-specific population structure in intermittent Mediterranean streams. - Sophia Hibler
• Connecting the Canyon: whole ecosystem metabarcoding in the Grand Canyon - Colorado River - David Lytle

Additional Session Chairs: Scott Alford, Meredith Brehob & Marc Weber

• The next generation of the US EPA's National Nutrient Inventory: a county and HUC12-level accounting of nitrogen and phosphorus across the CONUS (1987-2017) - Meredith Brehob
• Tracking Nutrient Inputs at the Stream Reach and Watershed Scale: Incorporating US EPA’s National Nutrient Inventory (NNI) into StreamCat and LakeCat - Marc Weber
• Development of a wetland geospatial framework to support agricultural nutrient management across the conterminous United States - Scott Alford
• Signs of improvement in crop nutrient use efficiency and surplus over 30 years in the Mississippi-Atchafalaya River Basin (MARB)  - Selia Markley
• How Do Anthropogenic Activity and Hydrological Variability Control the Spatiotemporal Patterns of Nitrogen and Phosphorus Export in the Mississippi/Atchafalaya River Basin? - Qianyu Zhao
• Regional patterns and drivers of nutrient trends across the Chesapeake Bay watershed: Machine-learning insights and management implications - Qian Zhang

Additional Session Chair: Gretchen Lescord

• Building a National-Level Mercury Biomonitoring Program in Protected Lands Through Community Participation: The Dragonfly Mercury Project - Collin Eagles-Smith
• The Ripple Effects of Community Science: Insights from Texas Stream Team Volunteers - Aspen Navarro
• Community science model for high frequency stream monitoring  - Lauren McGrath
• Examining environmental drivers of Gloeotrichia density over space and time - Emily R Arsenault
• Decades of volunteer dedication in water quality monitoring: Factors driving volunteer retention in the Florida LAKEWATCH program - Elizabeth Moreau
• Volunteer satisfaction and data quality improve with staff engagement in Michigan’s Cooperative Lakes Monitoring Program - Jo A Latimore

Additional Session Chairs: Paige Kleindl & Kassie Holmes

• Bringing offshore data to shore: Using real-time sensing instruments as public engagement tools in the Great Lakes - Edward E Millar
• Bartram’s “Floating Fields:” How the Example of Florida’s Pistia stratiotes Challenges Simple “Just So” Narratives in Aquatic Plant Management   - Jason M. Evans
• Inspiring art and connecting communities through Everglades science - Paige M Kleindl
• Science and the Sacred (Waters) - Victoria Machado
• Interweaving Culture and Ecology: Chinese Shanshui (Mountain-Water) Traditions in Liberal Arts Education - Jinhui Wu

Additional Session Chairs: Laurel Genzoli & Kelly Aho

• Insights from a decade of gross primary productivity estimation in a large regulated river - Lindsay Hansen
• Groundwater variation drives respiration in Middle Rio Grande riparian floodplain ecosystems - Eva Tipps
• A new, simplified two-station approach for modeling metabolism in tailwaters subject to diel flow variation - Ian W. Bishop
• River air-water gas exchange using concurrent O₂, CO₂, and pH time series - Wade McGillis
• Multidecadal ecosystem metabolism dynamics above and below a large water diversion on the Lower Truckee River, Nevada, USA - Laurel Genzoli
• Tradeoffs with hydrologic and direct measurement techniques to assess average stream depth over a defined length of stream - Walter Dodds

• Variation in Carbon and Nitrogen Fixation Across Substrates in an Oligotrophic Headwater Stream - Augustine Sitati
• Early spring diatom assemblages display depth-mediated response to experimental flow releases from Glen Canyon Dam, March 2021, Glen Canyon, AZ  - Madelaine Wrey
• Phytoplankton Community Composition Response to N:P Stoichiometry in Shallow Hypereutrophic Lake Ecosystems - Isabelle M Andersen
• Spatial and temporal variation of nutrient limitation in a western Montana river - Matthew Nichols
• Influence of ambient pH on phosphorus thresholds for calcareous periphyton mat breakdown - Kelsey J. Solomon
• Assessing benthic macroinvertebrate communities in artificial Podostemum ceratophyllum beds. - Elizabeth Cika

• Quantifying the effect of dissimilarity gradients on freshwater community uniqueness with Generalized Dissimilarity-Uniqueness Models (GDUM) - Daniel Hernández-Carrasco
• Diversity, Evenness and Inclusion in Microbiome Research   - Jane C Marks
• Assessing the influence of environmental factors and human use on the presence and distribution of rare invertebrate taxa in springs throughout Shenandoah National Park - Megan Underwood
• Amphibians as bioindicators of freshwater ecosystem health: A multiscale approach in the Western Balkans - Kristi Bego
• Long-term trends in Benthic Macroinvertebrate Diversity and Community Composition in a large watershed in New Jersey, USA  - Benjamin Harris
• Understanding patterns of species richness of Trichoptera in the United States and Canada - Kelly M Murray-Stoker

• Effects of salinity on carbon use efficiency of sediment microbes - Allyson Marrs
• Phyllosphere fungi might get there first, but does that hinder river colonizers? - Helen Ochs
• Deep “omics” show the threat of toxic cyanobacterial benthic mats growing in the Virgin River in Zion’s National Park, USA - Abeer Sohrab
• Stream Warming Alters Fungal Community Dynamics on Leaf Litter - Amanda Rouillard
• Bacterial assemblages respond to variations in riparian canopy in 46 headwater streams in the upper Delaware River Basin, USA - Steven T Rier
• Phylogenetic and niche differentiation shape the gut microbiome of sympatric freshwater fish species - Kara Andres

• Plastisphere Freshwater Migration: Characterizing microplastic distributions across two IRES Watersheds. - Andre C Felton
• Seasonal microplastic abundance and composition in river biota linked with land use and species traits - Alexandra J Brown
• Terrestrial-Aquatic Connections: How freshwater and terrestrial environmental conditions impact plastic degradation and colonizing macroinvertebrate communities - Rae E McNeish
• Storm mediated transport of microplastic in an urban watershed - Olivia Schaul
• Effects of Single-Use Plastic Bans on Anthropogenic Litter in Urban Streams in Southeastern Pennsylvania - Victoria Moreira

• Implications of function choice in modeling hyporheic exchange - Hayley Oakland
• Effects of dam removal on organic matter decomposition in a mountainous Mediterranean stream - João Miguel Merces Bega
• Microbes drive seasonal transformations in dissolved organic matter composition and bioavailability in urban canals - Liz Ortiz
• Assessing Quality and Quantity of Headwater Stream Food Resources Across a Mining-Induced Salinity Gradient in the Central Appalachian Coalfield - Lisa Tabor
• Spatiotemporal responses of a delta ecosystem to wastewater treatment plant upgrades - Kyle Leathers
• Seasonal shifts in apparent nutrient limitation of biofilms and bryophytes in arctic spring-streams with varying temperatures - Tori A Hebert

Additional Session Chair: Erik Pilgrim

• Metabarcoding or Morphological Metawebs? Using DNA and traditional approaches for making trait-based food web models at a continental scale. - Zacchaeus G Compson
• Expanding Horizons of eDNA Methods in Freshwater Systems: Airborne eDNA Detection of Aquatic Organisms - Matthew A Barnes
• The Great Lakes Introduced Species Sentinel Network (GLISSNet): Toward standardized molecular methods for long-term non-native species surveillance - John A Darling
• Comparison of molecular and morphological approaches for biodiversity detection in the Great Lakes Introduced Species Sentinel Network (GLISSNet) - Sarah Brown
• Testing the effect of crayfish molting on environmental DNA detectability - Samantha M Garcia
• Revolutionizing physiological biomonitoring: utilization of DNA methylation in conjunction with environmental (e)DNA - Steven Gardner

Additional Session Chairs: Scott Alford, Meredith Brehob & Marc Weber

• Drivers of recent trends in nutrient loading from U.S. rivers to coastal waters explained by watershed models - Gretchen P Oelsner
• Making the most of historical water quality datasets: techniques to accurately interpret historical long-term monitoring - Vaughn Grey
• Global analysis of riverine silicon concentration-discharge relationships reveals shifts in biogeochemical processes and ecosystem function - Lienne R. Sethna
• Australian riverine land-to-ocean carbon export constrained by large-scale monitoring data - Francesco Ulloa Cedamanos
• Stormy Waters: Tracking Estuarine Water Quality Changes in the Aftermath of Hurricanes - Emine Fidan

Additional Session Chair: Aspen Navarro

• The Lakes of Missouri Volunteer Program: 33 years of data at work - Alba Argerich
• An integrated drought response framework based on partner-informed scenarios - Elly Gay
• Community Priorities for Climate Change Adaptation in Freshwater Systems - Maddy Grupper
• What’s in a name? On the recent terminology changes in the participatory sciences. - Gretchen Lescord

Additional Session Chairs: Paige Kleindl & Kassie Holmes

• The Story of the Boise River: Past, Present, and Future Conditions - Benjamin D Block
• Telling the story of Florida springs using photos, videos, and music - Kirsten Work
• Integrating nature-based solutions into a comprehensive stormwater management strategy: Identifying priority species that co-benefit through habitat improvements - Justin M Miller
• From Narratives to Networks: Community Pathways for Flood Adaptation in the Río Piedras, San Juan - Mandy Kuhn
• From the Kalene Hills to the Indian Ocean: The flow of the Zambezi River in the face of climate change uncertainties in 2023 – 2024   - Mary Chibwe
• An interdisciplinary approach to divergent conceptions of river health: Insights from Central Florida - Zack Gilmore

Additional Session Chairs: Robert Hensley & Robert Hall

• Using N₂ and CH₄ saturation to explore links between aerobic and anaerobic stream metabolism  - Robert S. Brown
• Understanding residual error in riverine metabolism models - Robert O Hall
• Vertical variation in oxygen-based estimates of primary production and respiration in agricultural ponds using high-frequency sensor data - Lacy A Miller

• From point sources to nonpoint sources: The biogeochemical implications of aging and obsolete wastewater infrastructure - Krista A Capps
• Impact of waste water on the structure and function of alpine streams. - Stephanie N Merbt
• Point-source disturbances, in-stream biogeochemical responses, and implications for river network solute and particle dynamics - Eugenia Martí

• Effects of Nutrients and Temperature on Algal Composition, Photosynthesis, and Nitrogen Fixation in a Salmon-Bearing River   - Michael Wulf
• The influence of temperature and nutrient availability on the community composition of Cladophora epiphytes - Chelsea Scheirer
• Diatom diversity from two streams of Puerto Rico (NEON sites): Iconography, taxonomy, and ecological preferences of the species - María Cid Rodríguez
• Co-variation of macrophyte and microbial mat standing stocks along wetland resource gradients - Paige M Kleindl
• Insights into the biofilm community composition of Podostemum ceratophyllum Michx. (Podostemaceae), a rheophytic macrophyte of eastern North American rivers. - James L Wood
• Tradeoffs between elemental homeostasis and growth govern freshwater phytoplankton responses to salinization - Samuel Dias

•  Novel and scalable tools in spatial freshwater biodiversity science - Afroditi Grigoropoulou
• The impact of plant diversity on streambank erosion - Janniry Cabrera Belen
• Evaluating bioinformatic thresholds and taxonomic assignment in DNA metabarcoding - Lindsey E Davis
• Linking Life History Strategies with Host-Parasite Interactions in Freshwater Fishes and Mussels - Irene Sanchez Gonzalez
• Climate-driven ecosystem shifts and preferential mating underlie northward expansion of a killifish hybrid zone in northeastern Florida - Andrew L Hardy

• Metagenomic Analysis of the Resistome, Mobilome, and Microbiome in Eastern Cape River Systems - Chika F Nnadozie
• Antibiotics Select for Antimicrobial Resistance Genes and Alter Metabolism in Heterotrophic Biofilms - Emma M Thrift-Cahall
• The effects of variable nutrient stoichiometry on biogeochemical processes and microbial community composition in shallow lake mesocosms - Alexa Hoke
• Phosphorus Uptake and Storage by Aquatic Hyphomycete Fungi. - Lydia P McGregor Bravo
• Microcoleus as toxic benthic Mats on different bottom substrates: ecophysiology and distribution - Abeer Sohrab
• Impact of protist predation on bacterial community traits in river sediments - Yaohui Bai

• Watershed Land Cover Predicts Anthropogenic Litter Abundance in Streams  - Timothy Hoellein
• Getting trashy:  Assessing differences in the establishment of aquatic invertebrate communities on different plastic bag types in a forested stream in central Pennsylvania, USA - Jon N Sweetman

• Reframing failure and overcoming research challenges in aquatic science - Elise Snyder
• Failure is an option: the more you do it the easier it gets to deal with it (most of the time). - Sally Entrekin
• Potential trade-offs between predation and facilitation by an ecosystem engineer - Samuel F Fritz
• Lessons learned from a mussel propagation program in the Niagara River basin - Corey A Krabbenhoft