The role of the hyporheic zone for a benthic fish in an intermittent river: a refuge, not a graveyard

Kawanishi, Ryota; Inoue, Mikio; Dohi, Ryota; Fujii, Asuka; Miyake, Yo

doi:10.1007/s00027-013-0289-4

Cited by 37 publications

(27 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Restoration and management to maximize refuge potential Previous research has indicated that subsurface sediments provide a refuge that can promote the survival of predominantly benthic taxa during adverse instream conditions (Kawanishi et al, 2013). The availability and ecological integrity of such refuges is of increasing importance in the face of ongoing climate change, with instream communities experiencing greater frequency and duration of streambed drying as well as more frequent and intense high-flow events in some regions (Döll & Schmied, 2012;Arnell & Gosling, 2013).…”

Section: Effect Of Fine Sediment Volume On Gammarus Pulex Migrations mentioning

confidence: 99%

Fine sediment reduces vertical migrations of Gammarus pulex (Crustacea: Amphipoda) in response to surface water loss

2015

View full text Add to dashboard Cite

Surface and subsurface sediments in river ecosystems are recognized as refuges that may promote invertebrate survival during disturbances such as floods and streambed drying. Refuge use is spatiotemporally variable, with environmental factors including substrate composition, in particular the proportion of fine sediment (FS), affecting the ability of organisms to move through interstitial spaces. We conducted a laboratory experiment to examine the effects of FS on the movement of Gammarus pulex Linnaeus (Crustacea: Amphipoda) into subsurface sediments in response to surface water loss. We hypothesized that increasing volumes of FS would impede and ultimately prevent individuals from migrating into the sediments. To test this hypothesis, the proportion of FS (1-2 mm diameter) present within an open gravel matrix (4-16 mm diameter) was varied from 10 to 20% by volume in 2.5% increments. Under control conditions (0% FS), 93% of individuals moved into subsurface sediments as the water level was reduced. The proportion of individuals moving into the subsurface decreased to 74% at 10% FS, and at 20% FS no individuals entered the sediments, supporting our hypothesis. These results demonstrate the importance of reducing FS inputs into river ecosystems and restoring FS-clogged riverbeds, to promote refuge use during increasingly common instream disturbances.

show abstract

Section: Effect Of Fine Sediment Volume On Gammarus Pulex Migrations mentioning

confidence: 99%

Fine sediment reduces vertical migrations of Gammarus pulex (Crustacea: Amphipoda) in response to surface water loss

2015

View full text Add to dashboard Cite

show abstract

“…By regulating the transfer of heat and mass across the sediment-water interface, the HZs play a critical role in temperature buffering (Arrigoni et al, 2008) and biogeochemical cycling (Mulholland and Webster, 2010). They are also permanent habitats for many microbes and invertebrates (Brunke and Gonser, 1999), provide refugia for surface invertebrates or fish (Dole-Olivier, 2011; Kawanishi et al, 2013), and are used by some fish for spawning (Geist et al, 2002). The occurrence and magnitude of processes occurring in HZs largely depend upon the hydrological flux between surface and ground waters (Findlay, 1995;Fischer et al, 2005).…”

mentioning

confidence: 99%

Variation in reach-scale hydraulic conductivity of streambeds

Stewardson

Datry²,

Lamouroux³

et al. 2016

Geomorphology

View full text Add to dashboard Cite

Streambed hydraulic conductivity is an important control on flow within the hyporheic zone, affecting hydrological, ecological, and biogeochemical processes essential to river ecosystem function. Despite many published field measurements, few empirical studies examine the drivers of spatial and temporal variations in streambed hydraulic conductivity. Reach-averaged hydraulic conductivity estimated for 119 surveys in 83 stream reaches across continental France, even of coarse bed streams, are shown to be characteristic of sand and finer sediments. This supports a model where processes leading to the accumulation of finer sediments within streambeds largely control hydraulic conductivity rather than the size of the coarse bed sediment fraction. After describing a conceptual model of relevant processes, we fit an empirical model relating hydraulic conductivity to candidate geomorphic and hydraulic drivers. The fitted model explains 72% of the deviance in hydraulic conductivity (and 30% using an external cross-validation). Reach hydraulic conductivity increases with the amplitude of bedforms within the reach, the bankfull channel width-depth ratio, stream power and upstream catchment erodibility but reduces with time since the last streambed disturbance. The correlation between hydraulic conductivity and time since a streambed mobilisation event is likely a consequence of clogging processes. Streams with a predominantly suspended load and less frequent streambed disturbances are expected to have a lower streambed hydraulic conductivity and reduced hyporheic fluxes. This study suggests a close link between streambed sediment transport dynamics and connectivity between surface water and the hyporheic zone.

show abstract

“…The Lombardy region is a quite effective example of such a situation, with only upstream sectors of the river ecosystems still being natural, and wide urbanization affecting both physical connectivity and biotic structure, through pollution, of the lotic ecosystems. For several species, including decapods, fish and amphibians, restoration of the hydrologic connectivity could be favorable (Ficetola et al, 2012;Kawanishi et al, 2013;Maceda-Veiga, 2013;Scalici et al, 2008a,b), but alien crayfish dispersal must be taken into account. In particular, in urbanized areas where native crayfish populations are confined to the headstreams, the crayfish plague may represent a relevant risk factor.…”

Section: Discussionmentioning

confidence: 97%

Austropotamobius pallipes reduction vs. Procambarus clarkii spreading: Management implications

Manenti

Bonelli²,

Scaccini³

et al. 2014

Journal for Nature Conservation

View full text Add to dashboard Cite

The role of the hyporheic zone for a benthic fish in an intermittent river: a refuge, not a graveyard

Cited by 37 publications

References 34 publications

Fine sediment reduces vertical migrations of Gammarus pulex (Crustacea: Amphipoda) in response to surface water loss

Fine sediment reduces vertical migrations of Gammarus pulex (Crustacea: Amphipoda) in response to surface water loss

Variation in reach-scale hydraulic conductivity of streambeds

Austropotamobius pallipes reduction vs. Procambarus clarkii spreading: Management implications

Contact Info

Product

Resources

About