Impacts of an inter-basin water transfer: distribution and abundance ofMicronecta poweri (Insecta: Corixidae) in the River Wear, north-east England

Gibbins, Chris; Jeffries, Michael; Soulsby, Christopher

doi:10.1002/(sici)1099-0755(200003/04)10:2<103::aid-aqc402>3.0.co;2-w

Cited by 20 publications

(13 citation statements)

References 22 publications

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“…Despite the clear role that sediment mobilization plays in initiating drift, considerable drift can also occur in the absence of sediment movement; the effects of non-scouring increases in flow are not less dramatic for benthic communities than those of catastrophic floods (Imbert and Perry, 2000;Gibbins et al, 2007a, b), and drift can also occur when sediment is being agitated rather than being transported downstream and extremely high drift losses can occur in conditions that hydrologists and geomorphologists would not consider to be disturbance (Gibbins et al, 2007a, b). Gibbins et al (2000) demonstrated the impacts of discharge increase due to inter-basin water transfer on the insect Micronecta poweri, on a short-term water transfer (1 h) that increased the discharge 3-fold, where the sediment was not mobilized, and only FPOM was removed; as a consequence the average total abundance of M. poweri was reduced by approximately 50% during the transfer. To our knowledge, however, the effects of non-scouring flood induced by hydropeaking on the entire benthic assemblages have not been investigated.…”

Section: Introductionmentioning

confidence: 99%

Short time-scale impacts of hydropeaking on benthic invertebrates in an Alpine stream (Trentino, Italy)

et al. 2010

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a b s t r a c tThe impact of a single hydropeaking event was studied in the Alpine stream Noce Bianco. Four stations were selected, one upstream and three, respectively, at 0.25, 6, and 8 km downstream from a hydropower plant. We collected drifting invertebrates during a planned water release that increased the discharge 7-fold. At the onset of the hydropeaking wave the number of invertebrates lost from the riverbed per minute to the drift increased 9-fold at the first downstream station and the same effects propagated 8 km downstream. The drift was composed mainly of aquatic insect larvae (Chironomidae, Plecoptera, Ephemeroptera Baetidae, and Psychodidae, with Chironomidae as the most abundant taxon at all stations) and partly by larval and adult riparian insects, and by Oligochaeta, which were particularly abundant at the station 6 km downstream. We monitored drift for 30 min from the start of the water release: peaks in drifting invertebrates occurred within 5-10 min of the beginning of the hydropeaking wave, and most of the invertebrates were washed out within the first 15 min of the water release. The different timeframes were possibly due to habitat preferences (most of the taxa that increased in the drift at the arrival of the wave were associated with algae and organic debris, which were washed off quickly by the increase in discharge) and/or behavioral adaptations (other taxa initially resisted the shear stress and began to drift with a delay of 5-10 min). The temporal pattern and drift composition corresponded well with those reported in literature, and indicate that repeated high-flow events of similar magnitude cause considerable losses from benthic populations to drift.

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Section: Introductionmentioning

confidence: 99%

Short time-scale impacts of hydropeaking on benthic invertebrates in an Alpine stream (Trentino, Italy)

et al. 2010

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“…Invertebrate samples were collected at sites up and downstream from the Kielder transfer outlet over 1992–1995 (Gibbins 1996; Gibbins, Jeffries & Soulsby 2000). Five replicate kick samples were taken from random riffle locations at each of six sites (Fig.…”

Section: Methodsmentioning

confidence: 99%

Developing ecologically acceptable river flow regimes: a case study of Kielder reservoir and the Kielder water transfer system

Gibbins

Soulsby

Jeffries

et al. 2001

Fisheries Management Eco

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Kielder Reservoir and the Kielder water transfer scheme have been operational since the early 1980s. The hydro‐ecological changes that occur in the River North Tyne and the River Wear as a result of Kielder operations are highlighted and release policy changes designed to minimize impacts on salmonid fish are described. The Kielder Reservoir release regime results in sudden and marked changes in flow in the North Tyne. These changes affect the availability of suitable habitat for newly emerged 0+ Atlantic salmon Salmo salar L. and potentially lead to the drying out of areas used for spawning. Physical Habitat Simulation (PHABSIM) models suggest that the reservoir compensation flow provides adequate habitat for older 0+ fish but limits the availability of spawning habitat. A seasonally variable compensation and hydroelectric power (HEP) release regime that limits impacts and increases suitable spawning and 0+ habitat is described. Transfers of water to the River Wear result in short‐term changes in the abundance of certain invertebrate species, although there is no evidence that the river’s invertebrate fauna has been permanently altered. Consequently, it is unlikely that fish are affected indirectly by transfers through reductions in the abundance of their invertebrate prey. Transfers allow abstractions for potable and industrial water supply to continue without breaching the river’s statutory Minimum Maintained Flow (MMF). The PHABSIM models suggest that this augmentation helps avoid the loss of salmonid habitat during summer dry periods. Simulation of the impacts of some alternative regimes indicates that salmonid habitat could be increased further but at the expense of natural flow and habitat variation. Research findings do not suggest the need for changes to the transfer release regime.

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“…Diverted water also has other uses including hydropower production and agricultural irrigation. There are many social and environmental considerations associated with inter‐basin transfers of water that are beyond the scope of this paper, but a plethora of scholarly papers can be found on these topics (e.g., Snaddon and Davies ; Gibbins et al ).…”

Section: The Water Budget Equationmentioning

confidence: 99%

Fundamentals of Watershed Hydrology

Edwards

Williard

Schoonover

2015

Contemporary Water Research

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This is a primer about hydrology, the science of water. Watersheds are the basic land unit for water resource management and their delineation, importance, and variation are explained and illustrated. The hydrologic cycle and its components (precipitation, evaporation, transpiration, soil water, groundwater, and streamflow) which collectively provide a foundation for how landscapes and water interact are discussed at length. Important hydrologic concepts and methods are described in detail but primarily within the context of forested watersheds since most of the nation's fresh water originates from forest lands. The contents of this paper are designed to provide fundamental hydrologic principles to both citizens and policy makers, with the intention of helping to guide informed watershed management activities.

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Impacts of an inter-basin water transfer: distribution and abundance ofMicronecta poweri (Insecta: Corixidae) in the River Wear, north-east England

Cited by 20 publications

References 22 publications

Short time-scale impacts of hydropeaking on benthic invertebrates in an Alpine stream (Trentino, Italy)

Short time-scale impacts of hydropeaking on benthic invertebrates in an Alpine stream (Trentino, Italy)

Developing ecologically acceptable river flow regimes: a case study of Kielder reservoir and the Kielder water transfer system

Fundamentals of Watershed Hydrology

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