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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 Chelsea Technologies Act2 Laboratory-based 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.

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.

The Importance of Algal Monitoring in Finfish Aquaculture

An algal bloom is believed to have killed thousands of Atlantic salmon at a finfish aquaculture site in Scotland, last week. Warmer water temperatures over recent weeks is suspected to have been the cause of the bloom in Loch Fyne, reports the BBC. Continuous, in-situ algal monitoring is crucial to understand diurnal, seasonal and environmental variability at culture sites and could significantly contribute to the early detection of algal blooms. Coupled with local hydrographic models, sensors such as the TriLux from Chelsea Technologies can be placed in strategic areas to continuously monitor for any incoming blooms, allowing operators to employ management practices to minimise the risk to their livestock. In addition to this, long-term, continuous data-sets could be used to improve current understanding and models of the biology at these sites.

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

To understand how human activities and global climate change affect marine environments, we need to understand the role of phytoplankton and photosynthesis. Scientist around the world are using the Chelsea FastOcean APD (Ambient Plus Dark) Profiling system and Act2 Laboratory based system  to improve such photosynthesis and GPP measurements. Over the past year, Chelsea has seen sales of the FastOcean Fast Repetition Rate fluorometers (FRRf) soar with systems now being used across Europe, USA, Australia and China.

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, Chelsea Technologies has  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 Chelsea's Chief Scientist, 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.”  

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.

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.

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