YSI 6131 Blue-Green Algae Sensor
The YSI 6131 blue-green algae sensor monitors algal populations at natural levels in freshwater, providing an early warning for bloom conditions.
Features
- YSI 6131 BGA Sensor is designed for freshwater (phycocyanin) environments
- Optimized for excellent sensitivity for monitoring algal populations at natural levels
- Insensitive to potential interferences including chlorophyll, turbidity, and dissolved organics
- Expedited repair and warranty service
- Lifetime technical support
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Overview
The YSI 6131 blue-green algae sensor monitors algal populations at natural levels in freshwater, providing an early warning for bloom conditions. Blue-green algae (or cyanobacteria) monitoring is of growing interest due to the problems some species can present through the production of toxins and compounds that deteriorate the quality of drinking water and through the formation of blooms. Blue-green algae are of interest for ecosystem studies and monitoring as well, where they may represent the most abundant primary producer.
Compatible with YSI 6-Series Sondes
The YSI 6131 blue-green algae sensor is fully compatible with all YSI 6-series sondes equipped with optical ports. YSI's optical sensors use an integrated wiping system to provide anti-fouling in the most hostile environments. Durable mechanical features include a non-corroding titanium wiper shaft, a replaceable wiper shaft seal, and a new switch-controlled wiper parking system to prevent mis-parking.
- Range: ~0 to 280,000 cells/mL; 0 to 100 RFU
- Detection Limit: ~220 cells/mL
- Resolution: 1 cell/mL; 0.1 RFU
- Linearity: R2> 0.9999
- Warranty: 2 years
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In The News
Cal Poly, San Luis Obispo Manages Monitoring Efforts in Morro Bay
California Polytechnic State University, San Luis Obispo (Cal Poly, SLO), has been monitoring Morro Bay for decades, and while the monitoring program has changed over the years, the dedication to monitoring the bay has remained the same. The project started in 2006 as a Packard Foundation-funded initiative to monitor water quality flowing in and out of Morro Bay. The goal at the time was to use the data collected to develop and inform an ecosystem-based management plan in collaboration with the Morro Bay National Estuary Program (MBNEP). Since the estuary was the focus at the time, researchers were monitoring water flowing into the estuary from Chorro Creek and Los Osos Creek.
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While the bay of Green Bay has been referred to as the largest freshwater “estuary” in the world, the watershed hosts intensive agriculture and contributes one-third of Lake Michigan’s total phosphorus load. The Fox River flows into the bay, carrying excess nutrients largely the result of non-point source runoff from the watershed. With a history of deterioration extending well into the last century, the bay ecosystem suffered significant declines in water quality. This, in turn, stimulated major clean-up and ongoing restoration efforts to improve water quality. Tracking these changes is an important aspect of ecosystem management.
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Cross-Border Sewage Contaminated Flows: Monitoring the Tijuana River
The Tijuana River runs across the US-Mexico boundary, flowing into and throughout southern California, carrying with it nutrients and contaminants throughout the estuary. In recent decades, the flows have been heavily polluted with untreated sewage from the City of Tijuana. The wastewater enters the greater Tijuana River estuary, impacting coastal communities and disrupting the natural environment. In order to better understand these cross-border flows, researchers out of San Diego University sought to monitor the waterway test the capabilities of in-situ sensors to measure the contaminated water. Natalie Mladenov and Trent Biggs were two of the researchers involved in the project, deploying a real-time monitoring system in May of 2021.
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