YSI Blue-Green Algae

Blue-green algae (BGA) is actually cyanobacteria, and can range in colors from blues, greens, reds, and black. BGA can reduce nitrogen and carbon in water, but can also deplete dissolved oxygen when overabundant. Monitoring BGA is important because they pose a serious threat to water quality, ecosystem stability, surface drinking water supplies, and public health through toxin production and the large biomass produced in algal blooms.

Surface accumulation of cyanobacteria. Photo by Lamiot; Source: Wikimedia Commons.

Ducks on an accumulation of plankton consisting of cyanobacteria. Photo by Lamiot; Source: Wikimedia Commons.

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YSI measures blue-green algae in real-time through the in-vivo fluorometry technique. This method directly detects the fluorescence of a specific pigment in living algal cells and determines relative algal biomass. The BGA sensor does not receive interference from chlorophyll or turbidity.

		6600V2 Make the most of your environmental monitoring. The 6600 V2 sonde is the most comprehensive water quality monitoring equipment available with simultaneous measurement of conductivity (salinity), temperature, depth or level, pH/ORP.

		6600EDS Extended Deployment for Harsh Environments The 6600EDS multiparameter sonde accurately measures 10 parameters in severe fouling environments for extended periods. The sonde has two optical ports, conductivity/temperature port, Rapid Pulse DO port, and pH/ORP port. The 6600EDS also offers an extended brush that cleans the pH/ORP and Rapid Pulse DO sensors.

		6920 V2 Compact Sonde for Unattended Monitoring The YSI 6920 V2 sonde is an economical logging system, ideal for long-term in situ monitoring and profiling. Two versions: 6920 V2-1 has one optical port, conductivity/temperature port, Rapid Pulse Dissolved Oxygen port, pH/ORP port, and 3 ISE ports 6920 V2-2 has 2 optical ports, conductivity/temperature port, pH port, and one ISE port.

		6820 V2 Compact Sonde for Field Sampling The YSI 6820 V2 is a cost-effective sonde for profiling and spot-checking in rivers, lakes, wetlands, wells, estuaries, and coastal waters. Two versions are available: 6820 V2-1 has one optical port, conductivity/temperature port, Rapid Pulse DO port, pH/ORP port, and 3 ISE ports 6820 V2-2 has 2 optical ports, conductivity/temperature port, pH port, and one ISE port.

		600OMS V2 Single-Parameter, Low-Cost Optical Monitoring System Measure optical dissolved oxygen, chlorophyll, blue-green algae, rhodamine, or turbidity in combination with temperature, conductivity and depth. Designed for use in fresh, sea or polluted waters, the 600OMS V2 utilizes the field-proven YSI sensors and incorporates innovations in sensor configuration such as a conductivity and temperature module that fits into the sonde body.

		600XL V2 and 600XLM V2 Small Packages - Economical Sampling or Logging Both the YSI 600XL V2 (sampling) and the YSI 600XLM V2 (logging) offer economical solutions in small packages for surface water and ground water applications. Both models easily fit into 2-inch wells and measure a range of fundamental parameters, including oxygen - with the YSI ROX™ optical dissolved oxygen sensor - and level, using a highly-accurate vented sensor.

		Vertical Profilers For watersheds, source water and reservoir monitoring, YSI Vertical Profiling Systems provide automated data collection and telemetry throughout a water column. These water quality profilers are available in 3 different deployment configurations, each featuring: Rugged, non-corrosive winch and drive mechanism Software for easy set-up, deployment, water quality analysis and export User-selectable sample intervals

		6131 and 6132 Blue-Green Algae Sensors (6-Series) Measure in situ blue-green algae levels in salt- or fresh-water with YSI 6131 and 6132 optical blue-green algae sensors.

		6431 and 6432 Anti-fouling Optical Blue-Green Algae Sensors (6-Series) Copper-alloy anti-fouling optical blue-green algae sensor used with 6-Series sondes.

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