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Introducing the all new LabSTAF Single Turnover Active Fluorometer system

Single Turnover Active Fluorometry (STAF) can measure Phytoplankton Primary Productivity (PhytoPP) on much wider spatiotemporal scales than is possible with more direct methods such as 14C fixation. "Over the last ten years, we have worked closely with the research community to develop hardware and data processing algorithms that bring us closer to realising this potential. Our combination of FastOcean STAF sensor and Act2 laboratory system is highly successful and the LabSTAF system builds upon this. It incorporates a number of new features that are specifically designed to minimise errors associated with the conversion of STAF data to PhytoPP," said Dr Kevin Oxborough.

Chelsea supplies Idronaut SRL with new 2000M rated TriLux Fluorometer

Chelsea Technologies are pleased to supply Idronaut Srl with the new 2000m rated TriLux configured for measurement of Chlorophyll-a, Phycoerythrin and Turbidity for integration to their Ocean Seven series of CTD’s.  The increased depth capability of the popular miniature multi-channel fluorometer has made this an ideal addition to the Ocean Seven multiparameter Sonde.  Chelsea have been providing Idronaut with TriLux fluorometers since its original launch, including OEM versions for direct integration to the Sonde.

Chelsea ALGAE-Wader system used to monitor HABs in Berlin’s bathing waters

“When the State of Berlin-Brandenburg were experiencing toxic algae blooms in their urban bathing areas last year, they needed a simple, reliable but accurate portable system to monitor these cyanobacteria blooms that would measure not only the algae pigments Chlorophyll a and Phycocyanin, but also Phycoerythrin,” said Justin Dunning. “We supplied the State Laboratory of Berlin with an ALGAE-Wader Pro system to cover these requirements and we’re delighted to announce they have placed further orders.”  

Chelsea TriLux successfully installed on new robot from Blooming Robotics

A new robot has been developed in a collaborative project between Blooming Robotics and Technical University Delft for removing cyanobacteria from open waters. Current methods for killing cyanobacteria, such as using hydrogen peroxide, damages the surrounding nature and leaves nutrients available for new blooms.

As part of this system, the Chelsea low cost TriLux Fluorometer has been installed on the front of the vessel via an Arduino platform and is used  to measure chlorophyll and phycocyanin. Once a specific threshold is passed, the system transitions into an algae-harvesting state.

Finnish Environmental Institute (SYKE) took delivery of two further UniLux fluorometers for use in their Baltic Sea monitoring program for cyanobacteria

“We recently supplied the Finnish Environmental Institute (SYKE) with a further two UniLux fluorometers. This follows on from the supply of three sensors last year for use in their Baltic Sea monitoring program for cyanobacteria,” reports Sam Kirby.

The new sensors are part of the Institute’s plans for developing flow-through systems, fixed platforms and laboratory experimental set-ups that require smaller fluorometers.

Introducing new V-Lux Fluorometer

Today at Ocean Business, Chelsea is launching its unique ‘interference immune’ V-Lux: Multi-parameter fluorometer, providing high quality in-situ detection of Algae, Aromatic Hydrocarbons or Tryptophan-like fluorescence. V-Lux is unique in providing up to three traceable standardized fluorescence channels. These are automatically corrected for environmental interferences using integral turbidity, absorbance and temperature measurements to provide, for the first time, robust and reliable monitoring in highly challenging environments. 

Phycoerythrin fluorescence monitoring in the Baltic Sea using CTG UniLux Fluorometers

Phycoerythrin is among the most dynamic phytoplankton pigments in the Baltic Sea. While Chlorophyll a provides information on bulk phytoplankton biomass and phycocyanin reflects the distribution of filamentous cyanobactreria, phycoerythrin signal originates mainly from picocyanobacteria, ciliate Mesodinium rubrum, cryptophytes and some dinoflagellates.

FastOcean used world-wide to monitor gross and net primary productivity (GPP and NPP)

Over the last year, Chelsea Technologies Group (CTG) has seen a number of publications appear regarding the use of the FastOcean Fast Repetition Rate fluorometer (FRRf) in the field. The FRRf is a great tool for measuring primary productivity and assessing the health of phytoplankton communities. The published papers (see below) demonstrate a wide range of uses for the instrument. These include investigating phytoplankton physiology in the Southern Ocean with regard to iron availability, comparing the effect of ocean acidification and irradiance on photophysiology in different phytoplankton groups and investigating the effect of silver nanoparticle toxicity in diatoms.

Leaders in environmental consulting @PLANCTON_ANDINO (Chile) have been using a @Chelsea_CTG  Act2 #frrf3 to monitor red tides as part of the Bivalve Molluscs Health Program.

Leading environmental consultants Plancton Andino SpA (Chile) are using a CTG FastAct Laboratory FRRf System to monitor red tides as part of the Bivalve Molluscs Health Program.

Chile is the world’s fourth largest producer of mussels and the health of the mussels is of paramount importance to the economy. These “red tides” or Harmful algal blooms (HABs) are natural events occurring around the world. Since first being reported in Chile in 1972 in the Strait of Magellan these HAB have increased in both frequency and geographic coverage.

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