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Barton, S, Yang, M, Batchelor-McAuley, C, Mitchell, E, Chen, H, Widdicombe, CE, Wheeler, GL, Compton, RG, Bouman, HA and Rickaby, REM 2024 Fluoro-Electrochemistry Based Phytoplankton Bloom Detection and Enumeration; Field Validation of a New Sensor for Ocean Monitoring. ACS ES&T Water. https://doi.org/10.1021/acsestwater.4c00530
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barton-et-al-2024-fluoro-electrochemistry-based-phytoplankton-bloom-detection-and-enumeration-field-validation-of-a-new.pdf - Published Version Available under License Creative Commons Attribution. Download (3MB) | Preview |
Abstract/Summary
Phytoplankton are essential for the health of our oceans, yet existing in situ methods for monitoring phytoplankton abundance and community structure are limited, with relatively poor spatiotemporal coverage and taxonomic resolution, particularly among the nanoplankton size range. Here, we build on previous work and present field testing of a novel reagent-free fluoro-electrochemical technique for monitoring changes in nanoplankton abundance and community structure in natural seawater samples. This was achieved through the construction of a prototype sensor, which was then tested over a 3-month Spring−Summer period in 2023 with samples collected from the L4 station (Western English Channel). The measurements made by our sensor were successfully validated alongside microscope-based taxonomic enumerations and analytical flow cytometry. Of the phytoplankton functional groups of interest, our results demonstrate particularly strong correlations between the sensor and both microscope-based taxonomy and flow cytometry for enumerating small coccolithophorids (i.e., calcifying Isochrysidales, of the Gephyrocapsa genus) and between the prototype and microscope-based taxonomy for enumerating diatoms. We demonstrate that the inclusion of traditionally hard to identify nanoflagellates in our classifications has minimal effect on our ability to monitor overall shifts in community structure and bloom detection. Taking things forward, the potential for in situ deployment is discussed.
| Item Type: | Publication - Article |
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| Additional Keywords: | ocean sensors, ocean monitoring, marine phytoplankton, nanoplankton, nanophytoplankton, electrochemical sensors, phytoplankton ecology |
| Divisions: | Plymouth Marine Laboratory > National Capability categories > Single Centre NC - CLASS (expired) Plymouth Marine Laboratory > National Capability categories > Western Channel Observatory Plymouth Marine Laboratory > Science Areas > Marine Ecology and Biodiversity Marine Biological Association of the UK > Marine Microbiome |
| Depositing User: | S Hawkins |
| Date made live: | 01 Nov 2024 15:58 |
| Last Modified: | 11 Nov 2024 16:10 |
| URI: | https://plymsea.ac.uk/id/eprint/10316 |
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