The fifth shade of green: A novel approach to phytoplankton color index assessment in an oligotrophic system
Abstract Measurements of phytoplankton color index (PCI), an indicator of phytoplankton biomass, represent one of the largest datasets acquired through the continuous plankton recorder (CPR) survey. PCI has been used to describe changes in the spatial and temporal distribution of phytoplankton, espe...
Published in: | Limnology and Oceanography: Methods |
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crwiley:10.1002/lom3.10382 2024-06-02T08:11:34+00:00 The fifth shade of green: A novel approach to phytoplankton color index assessment in an oligotrophic system Abualhaija, Rana Abualhaija, Yousef Tsolaki, Eleni Jimenez, Carlos Lange, Manfred A. EC FP7 PERSEUS Project 2020 http://dx.doi.org/10.1002/lom3.10382 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flom3.10382 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lom3.10382 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lom3.10382 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lom3.10382 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography: Methods volume 18, issue 9, page 495-503 ISSN 1541-5856 1541-5856 journal-article 2020 crwiley https://doi.org/10.1002/lom3.10382 2024-05-03T11:05:12Z Abstract Measurements of phytoplankton color index (PCI), an indicator of phytoplankton biomass, represent one of the largest datasets acquired through the continuous plankton recorder (CPR) survey. PCI has been used to describe changes in the spatial and temporal distribution of phytoplankton, especially in the North Atlantic, where the methodology was developed and primarily applied. The method functions by grouping samples, based on their color shade, into four categories. Each category is assigned a numerical value to aid spatial and temporal averaging. Recently a CPR has been operated in the Eastern Mediterranean, one of the most oligotrophic areas of the global oceans. To capture the specific characteristics of the area, an additional greenness grading is introduced. In this study, we use satellite‐derived chlorophyll a (Chl a ) data to examine whether PCI categories can be distinguished within the low and narrow range of Chl a values found in the study area and to calculate the range of Chl a concentrations expressed by each category. Furthermore, a newly calculated numerical system for the general use of PCI in oligotrophic areas and previously calculated PCI numerical value systems utilizing a variety of in situ, laboratory and remote sensing experiments, were tested for their applicability in the area. Present results indicate the feasibility of employing PCI measurements to provide an estimate of Chl a concentration in the Eastern Mediterranean. This provides confidence in the implementation of a new category system for PCI, as well as the use of the new PCI numerical system for the assessment of phytoplankton in oligotrophic waters. Article in Journal/Newspaper North Atlantic Wiley Online Library Limnology and Oceanography: Methods 18 9 495 503 |
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English |
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Abstract Measurements of phytoplankton color index (PCI), an indicator of phytoplankton biomass, represent one of the largest datasets acquired through the continuous plankton recorder (CPR) survey. PCI has been used to describe changes in the spatial and temporal distribution of phytoplankton, especially in the North Atlantic, where the methodology was developed and primarily applied. The method functions by grouping samples, based on their color shade, into four categories. Each category is assigned a numerical value to aid spatial and temporal averaging. Recently a CPR has been operated in the Eastern Mediterranean, one of the most oligotrophic areas of the global oceans. To capture the specific characteristics of the area, an additional greenness grading is introduced. In this study, we use satellite‐derived chlorophyll a (Chl a ) data to examine whether PCI categories can be distinguished within the low and narrow range of Chl a values found in the study area and to calculate the range of Chl a concentrations expressed by each category. Furthermore, a newly calculated numerical system for the general use of PCI in oligotrophic areas and previously calculated PCI numerical value systems utilizing a variety of in situ, laboratory and remote sensing experiments, were tested for their applicability in the area. Present results indicate the feasibility of employing PCI measurements to provide an estimate of Chl a concentration in the Eastern Mediterranean. This provides confidence in the implementation of a new category system for PCI, as well as the use of the new PCI numerical system for the assessment of phytoplankton in oligotrophic waters. |
author2 |
EC FP7 PERSEUS Project |
format |
Article in Journal/Newspaper |
author |
Abualhaija, Rana Abualhaija, Yousef Tsolaki, Eleni Jimenez, Carlos Lange, Manfred A. |
spellingShingle |
Abualhaija, Rana Abualhaija, Yousef Tsolaki, Eleni Jimenez, Carlos Lange, Manfred A. The fifth shade of green: A novel approach to phytoplankton color index assessment in an oligotrophic system |
author_facet |
Abualhaija, Rana Abualhaija, Yousef Tsolaki, Eleni Jimenez, Carlos Lange, Manfred A. |
author_sort |
Abualhaija, Rana |
title |
The fifth shade of green: A novel approach to phytoplankton color index assessment in an oligotrophic system |
title_short |
The fifth shade of green: A novel approach to phytoplankton color index assessment in an oligotrophic system |
title_full |
The fifth shade of green: A novel approach to phytoplankton color index assessment in an oligotrophic system |
title_fullStr |
The fifth shade of green: A novel approach to phytoplankton color index assessment in an oligotrophic system |
title_full_unstemmed |
The fifth shade of green: A novel approach to phytoplankton color index assessment in an oligotrophic system |
title_sort |
fifth shade of green: a novel approach to phytoplankton color index assessment in an oligotrophic system |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/lom3.10382 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flom3.10382 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lom3.10382 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lom3.10382 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lom3.10382 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Limnology and Oceanography: Methods volume 18, issue 9, page 495-503 ISSN 1541-5856 1541-5856 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/lom3.10382 |
container_title |
Limnology and Oceanography: Methods |
container_volume |
18 |
container_issue |
9 |
container_start_page |
495 |
op_container_end_page |
503 |
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1800757753080184832 |