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.
One paper has been dedicated to comparing methods of primary production monitoring and highlights the relative usefulness of FRRf with regards to spatial resolution and automation (Kromkamp et al. 2017).
These papers highlight the benefits of using FastOcean as a non-invasive method for measuring in situ primary production at a high spatial resolution and the instrument’s continued relevance in understanding global phytoplankton communities and their response to a changing environment.
Blanco-Ameijeiras, S. Cosio, C. Hassler, C.S. Department for Environmental and Aquatic Sciences. Long-Term Acclimation to Iron Limitation Reveals New Insights in Metabolism Regulation of Synechecoccus sp. PCC7002. Frontiers in Marine Science – 2017. 4:247:1-13.
Deng, Y. Hu, Z. Shang, L. Peng, Q. Tang, Y.Z. Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology. Transcriptomic Analyses of Scrippsiella trochoiea Reveals Processes Regulating Encystment and Dormancy in the Life Cycle of a Dinoflagellate, with a Particular Attention to the Role of Abscisic Acid. Frontiers in Microbiology – 2017. 8:2450:1-19.
Fujise, L. Nitschke, M.R. Frommlet, J.C. Serodio, J. Woodcock, S. Ralph, P.J. Suggett, D.J. Cell Cycle Dynamics of Cultured Coral Endosymbiotic Microalgae (Symbiodinium) Across Different Types (Species) Under Alternate Light and Temperature Conditions. J. Eukaryot. Microbiol. – 2018. Accepted author manuscript.
Goyen, S. Pernice, M. Szabo, M. Warner, M.E. Ralph, P.J. Suggett, D.J. A molecular physiology basis for functional diversity of hydrogen peroxide production amongst Symbiodinium spp. (Dinophyceae). Marine Biology – 2017. 164:46:3073-3075.
Kromkamp, J. Capuzzo, E. & Philippart, C.J.M. NIOZ, Royal Netherlands Institute for Sea Research. Measuring phytoplankton primary production: review of existing methodologies and suggestions for a common approach. EcApRHA Deliverable – 2017.
Lodeiro, P. Browning, T.J. Achterberg, E.P. Guillou, A. El-Shawawi, M.S. Ocean and Earth Science, National Oceanography Centre. Mechanisms of silver nanoparticle toxicity to the coastal marine diatom Chaetoceros curvisetus. Nature Scientific Reports – 2017. 7:10777:1-10.
Ryan-Keogh, T.J. Thomalla, S.J. Mtshali, T.N. Little, H. Southern Ocean Carbon and Climate Observatory, Natural Resources and Environment. Modelled estimates of spatial variability of iron stress in the Atlantic sector of the Southern Ocean. Biogeosciences – 2017. 14:3883-3897.
Trimborn, S. Thoms, S. Brenneis, T. Heiden, J.P. Beszteri, S. Bischof, K. Department of Biogeosciences, Alfred Wegner Institute for Polar and Marine Research. Two Southern Ocean diatoms are more sensitive to ocean acidification and changes in irradiance than the prymnesiophyte Phaeocystis antarctica. Physiologia Plantarum – 2017. 160:155-170.
About Chelsea Technologies Group
Chelsea Technologies Group has over 50 years’ experience in the design and manufacture of a range of sensors and systems geared for a number of markets but in particular the oceanology market. CTG specialises in optical, acoustic and physical sensors measuring temperature, conductivity, hydrocarbons, fluorescence, water clarity and primary productivity.
Customers have been using our high quality sensors and systems in a wide range of applications - Submariners are using them to understand the environment they pass through, water authorities are using them to test water supplies. Scientists globally monitor changes in oceanic algae and the effects on climate change. Shipping companies have installed our state-of- the-art in-line sensors to monitor exhaust gas cleaning systems and assess the real-time performance of ballast water treatment systems. Our highly sensitive hydrocarbon fluorometers are used in glider based systems to provide persistent, real-time monitoring of hydrocarbon levels around drilling and production platforms. Demand for the CTG sensors and systems has also come from the process control, food and automobile industries.
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FastOcean APD System (shown above): Automous profiling system using synchronised ambient plus dark FastOcean multi-wavelength FRR fluorometers to estimate primary productivity.
Act2-based laboratory and FerryBox systems: Act2 & the FastOcean FRR fluorometer can be combined to produce a highly automated system for probing oxygenic photosynthesis by phytoplankton
For more information, please contact
Sam Kirby, Marine Sales Manager
Mobile: +44(0)7825 688764, Tel: +44(0)20 8481 9026
Media contact: Ellen Keegan, Tel: +44(0) 208 481 9019 (Media)