A Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables

An integrated temporal study of a long-term ecological research and monitoring database of the St. Lawrence River was carried out. A long and mostly uninterrupted high temporal resolution record of fluorometric data from 2014 to 2018 was used to examine phytoplankton fluorometric variables at severa...

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Autores principales:	El-Amine Mimouni, Jeffrey J. Ridal, Michael R. Twiss
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	limnology phytoplankton fluorescence scale temporal study water quality Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/f5404447064346369038dcb27dd32a98
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spelling	oai:doaj.org-article:f5404447064346369038dcb27dd32a982021-11-12T06:46:01ZA Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables2624-937510.3389/frwa.2021.740309https://doaj.org/article/f5404447064346369038dcb27dd32a982021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/frwa.2021.740309/fullhttps://doaj.org/toc/2624-9375An integrated temporal study of a long-term ecological research and monitoring database of the St. Lawrence River was carried out. A long and mostly uninterrupted high temporal resolution record of fluorometric data from 2014 to 2018 was used to examine phytoplankton fluorometric variables at several scales and to identify temporal patterns and their main environmental drivers. Sets of temporal eigenvectors were used as modulating variables in a multiscale codependence analysis to relate the fluorometric variables and various environmental variables at different temporal scales. Fluorometric patterns of phytoplankton biomass in the St. Lawrence River are characterized by large, yearly-scale patterns driven by seasonal changes in water temperature, and to a lesser extent water discharge, over which finer-scale temporal patterns related to colored dissolved organic matter and weather variables can be discerned at shorter time scales. The results suggest that such an approach to characterize phytoplankton biomass in large rivers may be useful for processing large data sets from remote sensing efforts for detecting subtle large-scale changes in water quality due to land use practices and climate change.El-Amine MimouniJeffrey J. RidalMichael R. TwissFrontiers Media S.A.articlelimnologyphytoplankton fluorescencescaletemporal studywater qualityEnvironmental technology. Sanitary engineeringTD1-1066ENFrontiers in Water, Vol 3 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	limnology phytoplankton fluorescence scale temporal study water quality Environmental technology. Sanitary engineering TD1-1066
spellingShingle	limnology phytoplankton fluorescence scale temporal study water quality Environmental technology. Sanitary engineering TD1-1066 El-Amine Mimouni Jeffrey J. Ridal Michael R. Twiss A Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables
description	An integrated temporal study of a long-term ecological research and monitoring database of the St. Lawrence River was carried out. A long and mostly uninterrupted high temporal resolution record of fluorometric data from 2014 to 2018 was used to examine phytoplankton fluorometric variables at several scales and to identify temporal patterns and their main environmental drivers. Sets of temporal eigenvectors were used as modulating variables in a multiscale codependence analysis to relate the fluorometric variables and various environmental variables at different temporal scales. Fluorometric patterns of phytoplankton biomass in the St. Lawrence River are characterized by large, yearly-scale patterns driven by seasonal changes in water temperature, and to a lesser extent water discharge, over which finer-scale temporal patterns related to colored dissolved organic matter and weather variables can be discerned at shorter time scales. The results suggest that such an approach to characterize phytoplankton biomass in large rivers may be useful for processing large data sets from remote sensing efforts for detecting subtle large-scale changes in water quality due to land use practices and climate change.
format	article
author	El-Amine Mimouni Jeffrey J. Ridal Michael R. Twiss
author_facet	El-Amine Mimouni Jeffrey J. Ridal Michael R. Twiss
author_sort	El-Amine Mimouni
title	A Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables
title_short	A Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables
title_full	A Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables
title_fullStr	A Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables
title_full_unstemmed	A Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables
title_sort	multi-year assessment of phytoplankton fluorescence in a large temperate river reveals the importance of scale-dependent temporal patterns associated with temperature and other physicochemical variables
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/f5404447064346369038dcb27dd32a98
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A Multi-Year Assessment of Phytoplankton Fluorescence in a Large Temperate River Reveals the Importance of Scale-Dependent Temporal Patterns Associated With Temperature and Other Physicochemical Variables

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