Reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China

Industrial activities, dam construction, and mining are three human activities important for societal and economic development. However, the effects of these activities on phytoplankton communities have been less quantitatively assessed than those on other groups, such as macroinvertebrates, fish, a...

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Autores principales:	Bing Feng, Meng Zhang, Jianfeng Chen, Jun Xu, Bangding Xiao, Min Zhou, Min Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Phytoplankton Biotic integrity Industrial activities Dam construction Mining Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/a5f668e6ea85467b9f55ea268111ae44
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spelling	oai:doaj.org-article:a5f668e6ea85467b9f55ea268111ae442021-12-01T04:28:49ZReduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China1470-160X10.1016/j.ecolind.2020.106907https://doaj.org/article/a5f668e6ea85467b9f55ea268111ae442021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20308463https://doaj.org/toc/1470-160XIndustrial activities, dam construction, and mining are three human activities important for societal and economic development. However, the effects of these activities on phytoplankton communities have been less quantitatively assessed than those on other groups, such as macroinvertebrates, fish, and periphytic algae. In the present study, we selected the Ganjiang River basin, a tributary of the Yangtze River as the representative area to develop a feasible phytoplankton index of biotic integrity (Phyto-IBI) to evaluate the effects of industrial activities, dam construction, and mining on the biotic integrity of riverine ecosystems. The results showed that the three activities greatly altered the abundance and composition of phytoplankton, with a reduction in phytoplankton species quantity and diversity and an increase in abundance. The health status of the Ganjiang River was fair, and the health statuses of industrial areas, dam areas, mining areas, and reference points were poor, poor, fair, and good, respectively. The three activities damaged the biotic integrity of the aquatic system. Moreover, compared to industrial activities and mining, dam construction is more harmful to aquatic systems in the Ganjiang River. The locally weighted regression scatter plot smoother (LOWESS) method showed that an ammonium nitrogen (NH3-N) concentration of 0.65 mg L−1 is the environmental protection threshold for planktonic biotic integrity in the Ganjiang River. This study not only quantitatively assesses phytoplankton responses to industrial activities, dam construction, and mining but also provides guidance regarding the ecological monitoring, assessment and protection of riverine ecosystems.Bing FengMeng ZhangJianfeng ChenJun XuBangding XiaoMin ZhouMin ZhangElsevierarticlePhytoplanktonBiotic integrityIndustrial activitiesDam constructionMiningEcologyQH540-549.5ENEcological Indicators, Vol 120, Iss , Pp 106907- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Phytoplankton Biotic integrity Industrial activities Dam construction Mining Ecology QH540-549.5
spellingShingle	Phytoplankton Biotic integrity Industrial activities Dam construction Mining Ecology QH540-549.5 Bing Feng Meng Zhang Jianfeng Chen Jun Xu Bangding Xiao Min Zhou Min Zhang Reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China
description	Industrial activities, dam construction, and mining are three human activities important for societal and economic development. However, the effects of these activities on phytoplankton communities have been less quantitatively assessed than those on other groups, such as macroinvertebrates, fish, and periphytic algae. In the present study, we selected the Ganjiang River basin, a tributary of the Yangtze River as the representative area to develop a feasible phytoplankton index of biotic integrity (Phyto-IBI) to evaluate the effects of industrial activities, dam construction, and mining on the biotic integrity of riverine ecosystems. The results showed that the three activities greatly altered the abundance and composition of phytoplankton, with a reduction in phytoplankton species quantity and diversity and an increase in abundance. The health status of the Ganjiang River was fair, and the health statuses of industrial areas, dam areas, mining areas, and reference points were poor, poor, fair, and good, respectively. The three activities damaged the biotic integrity of the aquatic system. Moreover, compared to industrial activities and mining, dam construction is more harmful to aquatic systems in the Ganjiang River. The locally weighted regression scatter plot smoother (LOWESS) method showed that an ammonium nitrogen (NH3-N) concentration of 0.65 mg L−1 is the environmental protection threshold for planktonic biotic integrity in the Ganjiang River. This study not only quantitatively assesses phytoplankton responses to industrial activities, dam construction, and mining but also provides guidance regarding the ecological monitoring, assessment and protection of riverine ecosystems.
format	article
author	Bing Feng Meng Zhang Jianfeng Chen Jun Xu Bangding Xiao Min Zhou Min Zhang
author_facet	Bing Feng Meng Zhang Jianfeng Chen Jun Xu Bangding Xiao Min Zhou Min Zhang
author_sort	Bing Feng
title	Reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China
title_short	Reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China
title_full	Reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China
title_fullStr	Reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China
title_full_unstemmed	Reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China
title_sort	reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: a case study in the ganjiang river, china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a5f668e6ea85467b9f55ea268111ae44
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Reduction in the phytoplankton index of biotic integrity in riverine ecosystems driven by industrial activities, dam construction and mining: A case study in the Ganjiang River, China

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