Synoptic relationships between surface Chlorophyll-<i>a</i> and diagnostic pigments specific to phytoplankton functional types

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dc.contributor.authorHirata, T
dc.contributor.authorHardman-Mountford, N J
dc.contributor.authorBrewin, R J W
dc.contributor.authorAiken, J
dc.contributor.authorBarlow, R
dc.contributor.authorSuzuki, K
dc.contributor.authorIsada, T
dc.contributor.authorHowell, E
dc.contributor.authorHashioka, T
dc.contributor.authorNoguchi-Aita, M
dc.contributor.authorYamanaka, Y
dc.date.accessioned2021-10-08T06:20:14Z
dc.date.available2021-10-08T06:20:14Z
dc.date.issued2011
dc.description.abstractError-quantified, synoptic-scale relationships between chlorophyll-a (Chl-a) and phytoplankton pigment groups at the sea surface are presented. A total of ten pigment groups were considered to represent three Phytoplankton Size Classes (PSCs, micro-, nano- and picoplankton) and seven Phytoplankton Functional Types (PFTs, i.e. diatoms, dinoflagellates, green algae, prymnesiophytes (haptophytes), pico-eukaryotes, prokaryotes and Prochlorococcus sp.). The observed relationships between Chl-a and PSCs/PFTs were well-defined at the global scale to show that a community shift of phytoplankton at the basin and global scales is reflected by a change in Chl-a of the total community. Thus, Chl-a of the total community can be used as an index of not only phytoplankton biomass but also of their community structure. Within these relationships, we also found non-monotonic variations with Chl-a for certain pico-sized phytoplankton (pico-eukaryotes, Prokaryotes and Prochlorococcus sp.) and nano-sized phytoplankton (Green algae, prymnesiophytes). The relationships were quantified with a least-square fitting approach in order to enable an estimation of the PFTs from Chl-a where PFTs are expressed as a percentage of the total Chl-a. The estimated uncertainty of the relationships depends on both PFT and Chl-a concentration. Maximum uncertainty of 31.8% was found for diatoms at Chl-a = 0.49 mg m 3. However, the mean uncertainty of the relationships over all PFTs was 5.9% over the entire Chl-a range observed in situ (0.02
dc.identifier.apacitationHirata, T., Hardman-Mountford, N. J., Brewin, R. J. W., Aiken, J., Barlow, R., Suzuki, K., ... Yamanaka, Y. (2011). Synoptic relationships between surface Chlorophyll-<i>a</i> and diagnostic pigments specific to phytoplankton functional types. <i>Biogeosciences</i>, 8(2), 311 - 327. http://hdl.handle.net/11427/34229en_ZA
dc.identifier.chicagocitationHirata, T, N J Hardman-Mountford, R J W Brewin, J Aiken, R Barlow, K Suzuki, T Isada, et al "Synoptic relationships between surface Chlorophyll-<i>a</i> and diagnostic pigments specific to phytoplankton functional types." <i>Biogeosciences</i> 8, 2. (2011): 311 - 327. http://hdl.handle.net/11427/34229en_ZA
dc.identifier.citationHirata, T., Hardman-Mountford, N.J., Brewin, R.J.W., Aiken, J., Barlow, R., Suzuki, K., Isada, T. & Howell, E. et al. 2011. Synoptic relationships between surface Chlorophyll-<i>a</i> and diagnostic pigments specific to phytoplankton functional types. <i>Biogeosciences.</i> 8(2):311 - 327. http://hdl.handle.net/11427/34229en_ZA
dc.identifier.issn1726-4170
dc.identifier.issn1726-4189
dc.identifier.ris TY - Journal Article AU - Hirata, T AU - Hardman-Mountford, N J AU - Brewin, R J W AU - Aiken, J AU - Barlow, R AU - Suzuki, K AU - Isada, T AU - Howell, E AU - Hashioka, T AU - Noguchi-Aita, M AU - Yamanaka, Y AB - Error-quantified, synoptic-scale relationships between chlorophyll-a (Chl-a) and phytoplankton pigment groups at the sea surface are presented. A total of ten pigment groups were considered to represent three Phytoplankton Size Classes (PSCs, micro-, nano- and picoplankton) and seven Phytoplankton Functional Types (PFTs, i.e. diatoms, dinoflagellates, green algae, prymnesiophytes (haptophytes), pico-eukaryotes, prokaryotes and Prochlorococcus sp.). The observed relationships between Chl-a and PSCs/PFTs were well-defined at the global scale to show that a community shift of phytoplankton at the basin and global scales is reflected by a change in Chl-a of the total community. Thus, Chl-a of the total community can be used as an index of not only phytoplankton biomass but also of their community structure. Within these relationships, we also found non-monotonic variations with Chl-a for certain pico-sized phytoplankton (pico-eukaryotes, Prokaryotes and Prochlorococcus sp.) and nano-sized phytoplankton (Green algae, prymnesiophytes). The relationships were quantified with a least-square fitting approach in order to enable an estimation of the PFTs from Chl-a where PFTs are expressed as a percentage of the total Chl-a. The estimated uncertainty of the relationships depends on both PFT and Chl-a concentration. Maximum uncertainty of 31.8% was found for diatoms at Chl-a = 0.49 mg m 3. However, the mean uncertainty of the relationships over all PFTs was 5.9% over the entire Chl-a range observed in situ (0.02 DA - 2011 DB - OpenUCT DP - University of Cape Town IS - 2 J1 - Biogeosciences LK - https://open.uct.ac.za PY - 2011 SM - 1726-4170 SM - 1726-4189 T1 - Synoptic relationships between surface Chlorophyll-<i>a</i> and diagnostic pigments specific to phytoplankton functional types TI - Synoptic relationships between surface Chlorophyll-<i>a</i> and diagnostic pigments specific to phytoplankton functional types UR - http://hdl.handle.net/11427/34229 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/34229
dc.identifier.vancouvercitationHirata T, Hardman-Mountford NJ, Brewin RJW, Aiken J, Barlow R, Suzuki K, et al. Synoptic relationships between surface Chlorophyll-<i>a</i> and diagnostic pigments specific to phytoplankton functional types. Biogeosciences. 2011;8(2):311 - 327. http://hdl.handle.net/11427/34229.en_ZA
dc.language.isoeng
dc.publisher.departmentMarine Research (MA-RE) Institute
dc.publisher.facultyFaculty of Science
dc.sourceBiogeosciences
dc.source.journalissue2
dc.source.journalvolume8
dc.source.pagination311 - 327
dc.source.urihttps://dx.doi.org/10.5194/bg-8-311-2011
dc.subject.otherBiology (General)
dc.subject.otherQ
dc.subject.otherDOAJ:Earth Sciences
dc.subject.otherDOAJ:Biology
dc.subject.otherDOAJ:Earth and Environmental Sciences
dc.subject.otherGeology
dc.subject.otherQE1-996.5
dc.subject.otherDOAJ:Biology and Life Sciences
dc.subject.otherQH301-705.5
dc.subject.otherScience
dc.titleSynoptic relationships between surface Chlorophyll-<i>a</i> and diagnostic pigments specific to phytoplankton functional types
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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