Shoreline Sampling

To better understand nutrient levels in the shallow areas of Seneca Lake, we’ve partnered with Dr. Lisa Cleckner at the Finger Lakes Institute (FLI) to monitor nearshore nutrient concentrations and their role in the growth of harmful algal blooms (HABs) and algae such as Cladophora.

In 2025, this effort is focused on the northern end of the lake, where shoreline conditions and nutrient availability may contribute to localized algal growth.

Weekly Sampling with Volunteer Support

Six trained volunteers collect weekly water samples on both the East and West shores beginning in May. These samples are analyzed by FLI to measure nutrient concentrations near the shoreline.

In addition to water sampling:

  • FLI students conduct a monthly macrophyte survey to assess the types and density of aquatic vegetation and algae growing near docks.

Comparing Nearshore and Mid-Lake Conditions

For years, mid-lake nutrient levels have been monitored through our CSLAP (Citizens Statewide Lake Assessment Program) sampling. This new shoreline effort will help us compare nearshore nutrient levels to mid-lake results and better understand how shoreline conditions may be fueling HABs.