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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Exploring the Use of Fluorometric Sensors to Monitor Harmful Algal Blooms in Lakes |
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Exploring the Use of Fluorometric Sensors to Monitor Harmful Algal Blooms in Lakes (Number of pages: 15) (Publication Size: 835KB)
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| Author(s) | Wong, S. and W. Hobbs | ||||
| Description | During the summer and fall of 2019, the Department of Ecology (Ecology) deployed a multi-parameter data logger (sonde) in Spanaway Lake, Pierce County. The main goal of the study was to establish a relationship between sonde measurements and cyanobacteria harmful algae bloom (cyanoHABs) events that could be used as a predictive tool. The sonde was equipped with a fluorescence probe to measure both chlorophyll-a and phycocyanin, the latter being the main pigment in cyanobacteria. Eleven grab samples were collected during the deployment to compare laboratory measured data to the sonde data. Cyanotoxins (microcystin and anatoxin-a) were also measured in the grab samples. A statistically significant relationship was found between phycocyanin measured in the field and the lab. Furthermore, a statistically significant relationship was observed between lab-measured phycocyanin and microcystin concentrations. A predictive relationship between field-measured phycocyanin and microcystin concentrations appears possible based on this pilot dataset. We recommend continuing to develop the use of in situ fluorescence as a monitoring tool for cyanoHAB detection and possible early warning of toxins in lake water. |
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The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Will Hobbs at 360-407-7512 or whob461@ecy.wa.gov | ||||
| Keywords | harmful algae bloom, anatoxin, microcystin, toxics monitoring, lakes, cyanobacteria, cyanotoxin | ||||
| WATERSHED | Water Resource Inventory Area 12 Chambers-Clover | ||||
| DATA | Environmental Information Management (EIM) #WHOB008 |
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| RELATED PUBLICATIONS | Title:
Prevalence and Persistence of Cyanotoxins in Lakes of the Puget Sound Basin: Cyanotoxin production in Spanaway Lake (Pierce County, Washington) during the summer of 2021 The Historical Prevalence of Cyanobacteria in Spanaway Lake, Pierce County, Washington Addendum 3 to Quality Assurance Project Plan: Prevalence and Persistence of Cyanotoxins in Lakes of the Puget Sound Basin Addendum 2 to Quality Assurance Project Plan: Prevalence and Persistence of Cyanotoxins in Lakes of the Puget Sound Basin Quality Assurance Project Plan Addendum: Prevalence and Persistence of Cyanotoxins in Lakes of the Puget Sound Basin Quality Assurance Project Plan: Prevalence and Persistence of Cyanotoxins in Lakes of the Puget Sound Basin |
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