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Cyanobacteria (or blue-green algae) are photosynthetic bacteria that occur naturally in surface waters. Under certain conditions of light, temperature and nutrient levels cyanobacteria can multiply rapidly, forming a bloom.
Some Cyanobacteria produce toxins which pose health risks for humans and animals. The EU Bathing Waters Directive, therefore, requires monitoring for these blue-green algae blooms.
Testing for the actual toxins is possible by means of laboratory analysis of water samples, but this can be costly and time-consuming. However, cyanobacteria contain a fluorescent pigment called Phycocyanin, which can be detected in real-time using a Valeport Hyperion fluorometer.
The Hyperion uses narrow bandpass filters on both excitation and emission wavelengths to ensure that the response is specific to Phycocyanin measurement and not affected by false-positive results from normal Chlorophyll a fluorescence.
An evolution of the miniCTD, the fastCTDplus multi-parameter profiler is designed to deliver the highest quality CTD and Phycocyanin observations at fast drop rates.
Valeport’s Hyperion Phycocyanin Fluorometer sensor delivers high-performance measurements of Fluorescein, in a compact & robust package ideal as a standalone sensor, for ROV and AUV integration or used as part of a multi-sensor array and data logger.
Valeport’s SWiFTplus Multi-Parameter Profiler with a Phycocyanin sensor combines survey-grade sound speed, temperature and pressure sensor technology with Phycocyanin observations.