干旱区生态环境知识资源中心(Arid): A comparison of water quality and macroinvertebrate community structure in endorheic depression wetlands and a salt pan in the Gauteng province, South Africa

Arid

DOI	10.1007/s10661-018-7121-5
	A comparison of water quality and macroinvertebrate community structure in endorheic depression wetlands and a salt pan in the Gauteng province, South Africa
	Burger, M.1; van Vuren, J. H. J.1; de Wet, L.2; Nel, A.1
通讯作者	Burger, M.
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2019
卷号	191 期号:1
英文摘要	Depression wetlands (colloquially referred to in South Africa (SA) as pans) are found worldwide and primarily occur in arid regions including North and South America, southern and central Africa and southern and western Australia. Surface water resources in SA, and specifically in Gauteng, are under pressure from urbanisation, poor agricultural practices and untreated mining and industrial effluent. Research of these wetlands will benefit the development of health assessment tools for these unique aquatic resources. The aim of this project was to determine the water quality and macroinvertebrate community structure for each perennial pan during consecutive dry and wet seasons and to establish a possible comparison between these pans that can be used as a baseline for future research on pans. The sampled pans in Gauteng presented higher TDS, Cl and Mg results compared to other South African studies, and similar SO4 results to pans in the Mpumalanga province. Ammonia, Al and Zn results of all pans through all sampling events exceed the Target Water Quality Range (TWQR) for aquatic ecosystems of the Water Quality Guidelines (WQG) from the Department of Water and Sanitation (DWS). The water quality from selected systems is suitable for livestock watering based on the DWS TWQR. Macroinvertebrate species of all sampled pans were mostly low water quality tolerant species with a predator dominant community structure. Seasonal variation of species was evident. Macroinvertebrate families found in the wet season include Hydrophilidae, Aeshnidae, Pleiidae, Ephemeroptera, Belostomatidae and Notonectidae. Families found in the dry season include Planaridae, Dysticidae, Hirudinidae and Daphnidae. Graphical representation of ordination analyses with Canoco version 5 (Ter Braak and Smilauer 2012) indicated that TDS, temperature, pH, sulphates and hardness are strong drivers of the existing macroinvertebrate community in most of the pans.
英文关键词	Water quality Macroinvertebrates Endorheic Perennial pan Tswaing pan
类型	Article
语种	英语
国家	South Africa
收录类别	SCI-E
WOS记录号	WOS:000452856800007
WOS关键词	LAND-USE ; RIVER
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215464
作者单位	1.Univ Johannesburg, Dept Zool, POB 524, ZA-2006 Auckland Pk, South Africa; 2.Waterlab Pty Ltd, POB 283,Persequor Techno Pk, ZA-0020 Pretoria, South Africa
推荐引用方式 GB/T 7714	Burger, M.,van Vuren, J. H. J.,de Wet, L.,et al. A comparison of water quality and macroinvertebrate community structure in endorheic depression wetlands and a salt pan in the Gauteng province, South Africa[J],2019,191(1).
APA	Burger, M.,van Vuren, J. H. J.,de Wet, L.,&Nel, A..(2019).A comparison of water quality and macroinvertebrate community structure in endorheic depression wetlands and a salt pan in the Gauteng province, South Africa.ENVIRONMENTAL MONITORING AND ASSESSMENT,191(1).
MLA	Burger, M.,et al."A comparison of water quality and macroinvertebrate community structure in endorheic depression wetlands and a salt pan in the Gauteng province, South Africa".ENVIRONMENTAL MONITORING AND ASSESSMENT 191.1(2019).