CHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa

Harmful algal blooms formed by the haptophyte Phaeocystis globosa have been recorded in the Beibu Gulf since 2011. In this study, the composition and variation of phytoplankton assemblages in the Beibu Gulf were studied during an intense bloom of P. globosa from 2016 to 2017, using the CHEMTAX appro...

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Autores principales:	Jin-Xiu Wang, Fan-Zhou Kong, Hui-Xia Geng, Qing-Chun Zhang, Yong-Quan Yuan, Ren-Cheng Yu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Phaeocystis globosa Pigment Indicator CHEMTAX Phytoplankton Beibu Gulf Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/42764d88e5bf478b9136b222b5c90ddd
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spelling	oai:doaj.org-article:42764d88e5bf478b9136b222b5c90ddd2021-12-01T05:00:07ZCHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa1470-160X10.1016/j.ecolind.2021.108177https://doaj.org/article/42764d88e5bf478b9136b222b5c90ddd2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21008426https://doaj.org/toc/1470-160XHarmful algal blooms formed by the haptophyte Phaeocystis globosa have been recorded in the Beibu Gulf since 2011. In this study, the composition and variation of phytoplankton assemblages in the Beibu Gulf were studied during an intense bloom of P. globosa from 2016 to 2017, using the CHEMTAX approach. In phytoplankton samples collected from the Beibu Gulf, chlorophyll a (Chl a, 0.046–2.87 μg L−1) and fucoxanthin (Fuco, 0.041–13.7 μg L−1) were the most abundant pigments. Diatoms were the dominant group of phytoplankton, followed by cyanobacteria (mainly Synechococcus), haptophytes, cryptophytes, prasinophytes, dinoflagellates, and chlorophytes. Phytoplankton samples were clustered into four communities characterized by diatoms, cyanobacteria, haptophytes containing 19′-butanoyloxyfucoxanthin (the “Hapt-But” subgroup of haptophytes), and haptophytes containing 19'-hexanoyloxyfucoxanthin (the “Hapt-Hex” subgroup of haptophytes). Distribution pattern of the “Hapt-But” subgroup of haptophyte was consistent with that of P. globosa colonies. Diatoms had positive correlation with P. globosa colony abundance, while cyanobacteria had negative correlation. The diagnostic pigments for colony-forming P. globosa (But-fuco), diatoms (Fuco) and cyanobacteria (zeaxanthin), as well as temperature (<20 °C), could serve as potential early-warning indicators for the formation of P. globosa blooms in the Beibu Gulf.Jin-Xiu WangFan-Zhou KongHui-Xia GengQing-Chun ZhangYong-Quan YuanRen-Cheng YuElsevierarticlePhaeocystis globosaPigmentIndicatorCHEMTAXPhytoplanktonBeibu GulfEcologyQH540-549.5ENEcological Indicators, Vol 131, Iss , Pp 108177- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Phaeocystis globosa Pigment Indicator CHEMTAX Phytoplankton Beibu Gulf Ecology QH540-549.5
spellingShingle	Phaeocystis globosa Pigment Indicator CHEMTAX Phytoplankton Beibu Gulf Ecology QH540-549.5 Jin-Xiu Wang Fan-Zhou Kong Hui-Xia Geng Qing-Chun Zhang Yong-Quan Yuan Ren-Cheng Yu CHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa
description	Harmful algal blooms formed by the haptophyte Phaeocystis globosa have been recorded in the Beibu Gulf since 2011. In this study, the composition and variation of phytoplankton assemblages in the Beibu Gulf were studied during an intense bloom of P. globosa from 2016 to 2017, using the CHEMTAX approach. In phytoplankton samples collected from the Beibu Gulf, chlorophyll a (Chl a, 0.046–2.87 μg L−1) and fucoxanthin (Fuco, 0.041–13.7 μg L−1) were the most abundant pigments. Diatoms were the dominant group of phytoplankton, followed by cyanobacteria (mainly Synechococcus), haptophytes, cryptophytes, prasinophytes, dinoflagellates, and chlorophytes. Phytoplankton samples were clustered into four communities characterized by diatoms, cyanobacteria, haptophytes containing 19′-butanoyloxyfucoxanthin (the “Hapt-But” subgroup of haptophytes), and haptophytes containing 19'-hexanoyloxyfucoxanthin (the “Hapt-Hex” subgroup of haptophytes). Distribution pattern of the “Hapt-But” subgroup of haptophyte was consistent with that of P. globosa colonies. Diatoms had positive correlation with P. globosa colony abundance, while cyanobacteria had negative correlation. The diagnostic pigments for colony-forming P. globosa (But-fuco), diatoms (Fuco) and cyanobacteria (zeaxanthin), as well as temperature (<20 °C), could serve as potential early-warning indicators for the formation of P. globosa blooms in the Beibu Gulf.
format	article
author	Jin-Xiu Wang Fan-Zhou Kong Hui-Xia Geng Qing-Chun Zhang Yong-Quan Yuan Ren-Cheng Yu
author_facet	Jin-Xiu Wang Fan-Zhou Kong Hui-Xia Geng Qing-Chun Zhang Yong-Quan Yuan Ren-Cheng Yu
author_sort	Jin-Xiu Wang
title	CHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa
title_short	CHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa
title_full	CHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa
title_fullStr	CHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa
title_full_unstemmed	CHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa
title_sort	chemtax analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte phaeocystis globosa
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/42764d88e5bf478b9136b222b5c90ddd
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CHEMTAX analysis of phytoplankton assemblages revealed potential indicators for blooms of haptophyte Phaeocystis globosa

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