2027 focus
Marine and estuary water quality and ecology (per the national event slate).
Study plan
- Learn salinity, tides, and estuary mixing basics.
- Know indicator species, nutrient pollution, and common chemical tests conceptually.
- Practice interpreting data tables and graphs from sample problems.
- Review human impacts: runoff, hypoxia, oil spills, invasive species.
Tips
Make a comparison chart: freshwater vs estuary vs open ocean parameters.