MISSION STATEMENT: Our mission is to promote, preserve, and enhance the integrity of the Lake Fayetteville Watershed through scientific evaluation, educational programs, and voluntary cooperation.
Hello Friends of Lake Fayetteville,
The Lake Fayetteville Watershed Partnership speaker series this year will be held via Zoom.
The third speaker will be Dr. Brian Haggard, Director, Arkansas Water Resources Center.
THURSDAY, August 13th, 6:00 – 7:30 PM (Scroll down for Zoom link)
About the talk:
TITLE: Harmful Algal Blooms at Lake Fayetteville
SUMMARY: The caution and advisory signs about harmful algal blooms (HABs) at Lake Fayetteville have appeared again do to the presence of the algal toxin, microcystin. The EPA issued guidance regarding recreational criteria for microcystin concentrations in water bodies, and the concentrations at Lake Fayetteville have on occasion exceeded that criteria of 8 micrograms per liter. The Arkansas Water Resources Center along with collaborators from Baylor University have been trying to research these HABs andcyanobacteria producing toxins at this lake over the last couple years.
This research has brought about several questions, and it observed one piece of evidence helping to suggest why and when the cyanobacteria produce toxins. The data collected has shown that typical sampling strategies might lead to some variability in the measured microcystin concentrations due to sample collection and volume saved for analysis. The microcystin concentrations in the lake are also highly variable diurnally, temporally and spatially. The surface scums also tend to have the greatest microcystin concentrations, which often exceed the recreational criteria.
This presentation will hopefully answer several key questions about HABs at Lake Fayetteville, while also showing how the presence of cyanobacteria does not always mean high toxin.
Topic: Lake Fayetteville Watershed Partnership
Time: Aug 13, 2020 06:00 PM Central Time (US and Canada)
Meeting ID: 838 5292 5089
One tap mobile
+13126266799,,83852925089#,,,,,,0#,,767717# US (Chicago)
+19292056099,,83852925089#,,,,,,0#,,767717# US (New York)
Find your local number: https://us02web.zoom.us/u/kdolUhsX3p
See you on Zoom . . .