OWEA’s August monthly webinar, slated for August 11 at 3 pm, will feature “Diatoms for Evaluating Excess Nutrient Conditions.”
Diatom indicators of biological condition have been developed and applied at local, regional and national scales with relationships among these indicators, human disturbance, and water quality. Changes in diatom and non-diatom algal biomass in streams also appear consistently related to nutrient concentrations in streams. Diatoms respond directly to changes in nutrient concentrations, which are reflective of changes in nutrient loading. No other group of organisms used in biological assessment respond directly to nutrient concentrations. Relationships between algae and nutrients are commonly related to both numeric and narrative ambient water quality nutrient criteria in states across the country. This webinar will discuss the strong relationships that have been established between algae and nutrient condition status in flowing waterbodies across the country, provide an overview of how the data Ohio EPA has been collecting over the last decade can inform the relationship, and follow with results of a pilot study in Central Ohio where simultaneous measurement of diatoms and phosphorus was used to characterize nutrient condition status on Raccoon Creek along a stream reach with mixed point and non-point nutrient sources.
Details
1 CH OWEA VIRTUAL WORKSHOP
Date/Time:
August 11th, 3 pm - The webinar will start approximately 15 minutes early to allow for any technological challenges registrants may have. Please plan on logging on early to ensure your equipment is working correctly.
Cost:
$15 for members; $20 for non members
- Partial credit will not be offered.
- Each registrant must be on their own computer or tablet in order to receive credit.
- Credit will only be granted to those who have the webinar as their active window a minimum of 90% of the time and correctly answer the majority of the questions asked at the end of each presentation.
- If you utilize more than one screen you will need to check the webinar is on your main screen.
- OWEA is not responsible for any technological challenges, including loss of internet. If the registrant doesn't maintain the webinar as their active window for a minimum of 90% of the duration of the webinar due to a lose of internet or other technological issue, no credit will be given.
- Attendees will receive a certificate via email after the webinar as proof of attendance and all awarded contact hours will be uploaded to the EPA within 30 days of the event.
