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http://dx.doi.org/10.7850/jkso.2021.26.3.220

Trends in QA/QC of Phytoplankton Data for Marine Ecosystem Monitoring  

YIH, WONHO (Marine Life Research and Education Center, Kunsan National University)
PARK, JONG WOO (Tidal Flat Research Institute, National Institute of Fisheries Science)
SEONG, KYEONG AH (School of Marine Applied Bioscience, Kunsan National University)
PARK, JONG-GYU (School of Marine Applied Bioscience, Kunsan National University)
YOO, YEONG DU (School of Marine Applied Bioscience, Kunsan National University)
KIM, HYUNG SEOP (School of Marine Applied Bioscience, Kunsan National University)
Publication Information
The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY / v.26, no.3, 2021 , pp. 220-237 More about this Journal
Abstract
Since the functional importance of marine phytoplankton was firstly advocated from early 1880s massive data on the species composition and abundance were produced by classical microscopic observation and the advanced auto-imaging technologies. Recently, pigment composition resulted from direct chemical analysis of phytoplankton samples or indirect remote sensing could be used for the group-specific quantification, which leads us to more diversified data production methods and for more improved spatiotemporal accessibilities to the target data-gathering points. In quite a few cases of many long-term marine ecosystem monitoring programs the phytoplankton species composition and abundance was included as a basic monitoring item. The phytoplankton data could be utilized as a crucial evidence for the long-term change in phytoplankton community structure and ecological functioning at the monitoring stations. Usability of the phytoplankton data sometimes is restricted by the differences in data producers throughout the whole monitoring period. Methods for sample treatments, analyses, and species identification of the phytoplankton species could be inconsistent among the different data producers and the monitoring years. In-depth study to determine the precise quantitative values of the phytoplankton species composition and abundance might be begun by Victor Hensen in late 1880s. International discussion on the quality assurance of the marine phytoplankton data began in 1969 by the SCOR Working Group 33 of ICSU. Final report of the Working group in 1974 (UNESCO Technical Papers in Marine Science 18) was later revised and published as the UNESCO Monographs on oceanographic methodology 6. The BEQUALM project, the former body of IPI (International Phytoplankton Intercomparison) for marine phytoplankton data QA/QC under ISO standard, was initiated in late 1990. The IPI is promoting international collaboration for all the participating countries to apply the QA/QC standard established from the 20 years long experience and practices. In Korea, however, such a QA/QC standard for marine phytoplankton species composition and abundance data is not well established by law, whereas that for marine chemical data from measurements and analysis has been already set up and managed. The first priority might be to establish a QA/QC standard system for species composition and abundance data of marine phytoplankton, then to be extended to other functional groups at the higher consumer level of marine food webs.
Keywords
Long-term marine ecosystem monitoring; Phytoplankton species; Quantitative analysis; QA/QC; IPI;
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