干旱区生态环境知识资源中心(Arid): Daily flow intermittence in an effluent-dependent river: Impacts of flow duration and recession rate on fish stranding

Arid

DOI	10.1002/rra.3850
	Daily flow intermittence in an effluent-dependent river: Impacts of flow duration and recession rate on fish stranding
	Eppehimer, Drew E.; Enger, Brandon J.; Ebenal, Anton E.; Rocha, Erasmo P.; Bogan, Michael T.
通讯作者	Eppehimer, DE (corresponding author), Univ Arizona, Sch Nat Resources & Environm, Environm & Nat Resources Bldg 2,1064 East Lowell, Tucson, AZ 85721 USA.
来源期刊	RIVER RESEARCH AND APPLICATIONS
ISSN	1535-1459
EISSN	1535-1467
出版年	2021-08
英文摘要	Treated wastewater, also known as effluent, is discharged into streambeds where it can augment or create aquatic habitat in arid regions. However, discharge fluctuations can result in daily stream drying and rewetting. In this study, we documented flow intermittence and resulting fish stranding and mortality over a 12-week period on an effluent-dependent reach of the lower Santa Cruz River in Tucson, Arizona, USA. We hypothesized that fish stranding would be positively related to the duration of flow prior to drying (increased recolonization potential) and flow recession rates (increased stranding likelihood). Using trail cameras, we monitored drying duration and extent along a 2.1-km reach of river known to experience flow intermittence and counted stranded fish once a week. Drying extent varied widely (range: 0-1.88 km) and averaged 0.79 km +/- 0.14 SE. We observed a total of 323 fish strandings across the 12 weeks (range: 0-74 individuals per day; mean: 26.9 +/- 8.3 SE). Ninety-nine percent of observed fish were Poeciliidae (63% of which were fry), including non-native western mosquitofish (Gambusia affinis). The recession rate was a positive predictor for the daily stranding count of poeciliids (p = .008). Flow duration was not significant (p = .100) but was included in the top model (R-2 = 0.782). As urban development continues, the discharge of effluent into rivers and streams will become more common throughout the world. Continued research is needed to understand the benefits and challenges presented by these effluent-driven flow regimes, including their impacts on aquatic taxa.
英文关键词	drying mosquitofish urban ecology wastewater
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000693251300001
WOS关键词	STREAM FISHES ; ACTINEMYS-MARMORATA ; COMMUNITY STRUCTURE ; AQUATIC INSECTS ; RECYCLED WATER ; BROWN TROUT ; HABITAT ; SALMON ; MANAGEMENT ; STRATEGIES
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364544
作者单位	[Eppehimer, Drew E.; Enger, Brandon J.; Ebenal, Anton E.; Rocha, Erasmo P.; Bogan, Michael T.] Univ Arizona, Sch Nat Resources & Environm, Environm & Nat Resources Bldg 2,1064 East Lowell, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Eppehimer, Drew E.,Enger, Brandon J.,Ebenal, Anton E.,et al. Daily flow intermittence in an effluent-dependent river: Impacts of flow duration and recession rate on fish stranding[J]. University of Arizona,2021.
APA	Eppehimer, Drew E.,Enger, Brandon J.,Ebenal, Anton E.,Rocha, Erasmo P.,&Bogan, Michael T..(2021).Daily flow intermittence in an effluent-dependent river: Impacts of flow duration and recession rate on fish stranding.RIVER RESEARCH AND APPLICATIONS.
MLA	Eppehimer, Drew E.,et al."Daily flow intermittence in an effluent-dependent river: Impacts of flow duration and recession rate on fish stranding".RIVER RESEARCH AND APPLICATIONS (2021).