| 2021 Sessions |
| C01 |
Algae |
| C02 |
Fish and Other Aquatic Vertebrates |
| C03 |
Invertebrates |
| C04 |
Microbial Ecology |
| C05 |
Unionid Ecology |
| C06 |
Large River Ecology |
| C07 |
Lentic Ecology |
| C08 |
Urban Ecology |
| C09 |
Wetland Ecology |
| C10 |
Biogeochemistry |
| C11 |
Community Ecology |
| C12 |
Conservation Ecology |
| C13 |
Ecotoxicology |
| C14 |
Hydroecology |
| C15 |
Population Ecology |
| C16 |
Restoration Ecology |
| C17 |
Bioassessment |
| C18 |
Biodiversity |
| C19 |
Causal Assessment |
| C20 |
Climate Change |
| C21 |
Communicating Science |
| C22 |
Disturbance |
| C23 |
Education |
| C24 |
Eutrophication |
| C25 |
Food Webs |
| C26 |
Invasive Species |
| C27 |
Landuse and Non-Point Source Impacts |
| C28 |
Land-Water Interfaces |
| C29 |
Life Histories |
| C30 |
Molecular Ecology |
| C31 |
Organic Matter Processing |
| C32 |
Primary and Secondary Production |
| C33 |
Remote Sensing |
| C34 |
Science and Policy |
| C35 |
Systematics and Taxonomy |
| C36 |
Water Resource Management |
| C37 |
Stoichiometry |
| C38 |
Hyporheic Processes |
| C39 |
Hydrology/Geomorphology |
