Relevant bibliographies by topics / Riffle-pool structure

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Riffle-pool structure'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Riffle-pool structure"

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CHIBANA, Takeyoshi. "CHARACTERISTICS OF RIFFLE-POOL STRUCTURE FORMED BY A DROP STRUCTURE." Doboku Gakkai Ronbunshuu B 66, no. 3 (2010): 223–34. http://dx.doi.org/10.2208/jscejb.66.223.

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Li, Like, Niannian Fan, and Xingnian Liu. "Experimental study on flow structure in riffle-pool channels." IOP Conference Series: Earth and Environmental Science 199 (December 19, 2018): 052055. http://dx.doi.org/10.1088/1755-1315/199/5/052055.

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TERAMOTO, Atsuko, and Tetsuro TSUJIMOTO. "RELATIONSHIP BETWEEN CHARACTERISTICS OF BAR MORPHOLOGY AND RIFFLE-POOL STRUCTURE." PROCEEDINGS OF HYDRAULIC ENGINEERING 50 (2006): 961–66. http://dx.doi.org/10.2208/prohe.50.961.

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Najafabadi, Elham Fazel, Hossein Afzalimehr, and Pawel M. Rowiński. "Flow structure through a fluvial pool-riffle sequence – Case study." Journal of Hydro-environment Research 19 (March 2018): 1–15. http://dx.doi.org/10.1016/j.jher.2018.01.001.

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Milner, Victoria S., Nigel J. Willby, David J. Gilvear, and Charles Perfect. "Linkages between reach-scale physical habitat and invertebrate assemblages in upland streams." Marine and Freshwater Research 66, no. 5 (2015): 438. http://dx.doi.org/10.1071/mf14008.

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Determining the influence of physical habitat on biological structure in minimally disturbed settings is important if the effects of alterations to physical habitat are to be understood. This study tested whether reach-scale differences in physical habitat influence macroinvertebrate community composition at 24 sites in the Cairngorm Mountains, Scotland. Stream reaches were classified into channel types based on a geomorphic typology (i.e. step-pool, bedrock, plane-bed and pool-riffle). PERMANOVA indicated an overall significant relationship between the geomorphic typology and macroinvertebrate species-level composition, and among all combinations of channel types (such as step-pool and pool-riffle, step-pool and bedrock). Most channel types were dominated by high abundances of Baetis rhodani, Rhithrogena semicolorata and Leuctra inermis, which are ubiquitous in unpolluted gravel-bedded Scottish streams. However, reflecting significant differences in abundance of commoner taxa between types, indicator value (IndVal) analysis revealed that pool-riffle reaches were characterised by elmids (Limnius sp. and Oulimnius sp.) and Caenis rivulorum, and step-pool reaches by Alainites muticus, B. rhodani, L. inermis and Brachyptera risi. Geomorphic typing of rivers provides a useful basis for the initial assessment of ecological status whereas abundance-based biological data processed at the appropriate taxonomic resolution should be sensitive to physical-habitat modifications.
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Webb, P. W. "Use of fine-scale current refuges by fishes in a temperate warm-water stream." Canadian Journal of Zoology 84, no. 8 (2006): 1071–78. http://dx.doi.org/10.1139/z06-094.

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Laboratory studies suggest that fishes are capable of using fine-scale structures to avoid swimming. Similar structures occur as dips, ripples, and eroded areas behind protruding rocky materials, within the riffle–run–pool–margin structure of streams. It is not known if laboratory-determined capabilities are used to avoid swimming in the field. I measured current speeds for in-stream structures from coarse-scale riffle–run–pool–margin to fine-scale substratum ripples and determined fish locations in these structural features during the day and night. During the day, most fishes were seen in pools, margins, and runs, which is consistent with indirect responses to predation. At night, fishes from runs and ripples moved to the lowest current speeds, including those provided by fine-scale structures in the bottom of runs and riffles with dimensions comparable to minima used in laboratory settings.
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Ferreira, Vitor Manuel Barros, João Luiz DE Caíres Souza, and Maíra Moraes. "Community structure of benthic macroinvertebrates in different types of habitat in a stream stretch of the Atlantic Rainforest." Research, Society and Development 9, no. 1 (2020): e149911848. http://dx.doi.org/10.33448/rsd-v9i1.1848.

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The benthic macroinvertebrates are organisms of extremely importance to the energy flow of lotic ecosystems, acting as a link between basal resourcers and predators. This study aimed to analyze patterns of abundance, richness and diversity of a benthic macroinvertebrates community in different types of substrate and different velocities of water. The study was carried on in a stretch of 40 meters of a headwater stream located at the Tijuca National Park, the Tijuca River. The sampling was perfomed in September 2016. We sampled four types of samples, which we denominated as “habitats”: litter in riffle, litter in pool, sand in riffle and sand in pool. A total total of 2.208 individuals were collected, with most of them being immature insects. We confirmed our assumptions by finding difference between the composition of the four types of habitats. It was found higher abundance, richness and diversity in litter habitats, confirming that the characteristics of this type of substrate are more favorable for the majority of the benthic macrofauna.
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Gu, Jung-Eun, Sang Hwa Jung, Joongu Kang, and Hyoseop Woo. "Analysis for Underwater Sound on Natural River Habitat." E3S Web of Conferences 40 (2018): 02047. http://dx.doi.org/10.1051/e3sconf/20184002047.

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A riffle-pool structure is a representative physical structure of bed in rivers. The change in the physical parameter of the habitat could lead to changes in the sound environment of rivers, which are expressed by underwater acoustics. This change in underwater sound affects fish habitat. In this study, the changes of underwater acoustics were analyzed according to the change of pool-riffle sequence in a natural river. And the correlation between underwater acoustics and hydraulic characteristics was investigated. The survey for underwater acoustics was performed in the Namdae stream where is in Gangwon province. This stream belongs to the Han River basin and the river length is 39.01 km and the catchment area is 127.56 km2. The Namdae stream is a river that accounts for more than 70% of salmon returning to South Korea. The spawning salmon will return to this area around November after growing in the Bering Sea. It is important to manage the fish habitat in this river so there is a lot of research on the enhancement of fish habitat. Hydraulic characteristics were changed by the river bed structure. In this study, we investigated the relationship between underwater acoustic characteristics and hydraulic factors such as riverbed material, flow rate and water depth of each habitat type at 12 sites. The characteristics of underwater acoustic differed relative to different hydraulic factors of the two habitats, which is riffle and pool. The sound pressure level of riffles was relatively higher than that of the pools due to bed materials, shallow depth and high water velocity of riffles. In the future, it is considered that the underwater sound can be utilized as a parameter to evaluate the physical habitat environment of the river.
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Rot, Byron W., Robert J. Naiman, and Robert E. Bilby. "Stream channel configuration, landform, and riparian forest structure in the Cascade Mountains, Washington." Canadian Journal of Fisheries and Aquatic Sciences 57, no. 4 (2000): 699–707. http://dx.doi.org/10.1139/f00-002.

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The hierarchical relationship of five key elements, valley constraint, riparian landform, riparian plant community, channel type, and channel configuration, are described for 21 sites in mature to old-growth riparian forests of the western Cascades Mountains, Washington, U.S.A. Channel type (bedrock, plane-bed, and forced pool-riffle) was closely related to channel configuration (especially large woody debris (LWD) volume, density, and LWD-formed pools) at the smallest spatial scale and valley constraint at the largest. Valley constraint significantly influenced off-channel habitat (r2 = 0.71) and LWD volume within forced pool-riffle channels (r2 = 0.58). Riparian plant community composition was differentiated by four landform classes: three alluvial landforms based on height above the channel and one based on hillslope. Just above the active channel, floodplain landforms contained more deciduous stems than conifer and greater conifer basal area than deciduous. Conifers dominated other landforms. The diameter of in-channel LWD increased with the age of the riparian forest (r2 = 0.34). In old-growth forests, LWD diameter was equivalent to or greater than the average riparian tree diameter for all sites. In younger forests, the mixed relationship between LWD and riparian tree diameter may reflect a combination of LWD input from the previous old-growth stand and LWD input from the existing stand.
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Langeani, Francisco, Lilian Casatti, Helena Seixas Gameiro, André Bellucco do Carmo, and Denise de Cerqueira Rossa-Feres. "Riffle and pool fish communities in a large stream of southeastern Brazil." Neotropical Ichthyology 3, no. 2 (2005): 305–11. http://dx.doi.org/10.1590/s1679-62252005000200009.

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The structure of the fish communities of a pool and a rapid in the ribeirão Santa Bárbara is described. This stream of 5th order is a direct tributary of the rio Tietê in the system of the upper rio Paraná. Thirty three species, from nine families and three orders, were referred in the two mesohabitats: the pool with 31 species, and the rapid with 18. Orders Characiformes, Siluriformes, and Perciformes presented the greatest number of species in the two mesohabitats. The families Characidae and Loricariidae were the most specious, followed by Cichlidae in the pool, and by Parodontidae in the rapid. Most species were accidental, 17 in the pool, and 10 in the rapid, and only six were constant in the two mesohabitats. The greatest diversity and evenness occurred in the pool. The seasonal variation for both assemblages was high, with the pool having a high turnover of species that could be due to the proximity with main channel of the rio Tietê.
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Dissertations / Theses on the topic "Riffle-pool structure"

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田代, 喬., Takashi TASHIRO, 哲郎 辻本 та Tetsuro TSUJIMOTO. "河床攪乱頻度を指標とした生息場評価による瀬・淵構造の変質に関する考察". 土木学会, 2002. http://hdl.handle.net/2237/8565.

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Su, Mei-Ru, and 蘇美如. "Biomass and Community Structure of Epilithic Diatoms in Pool, Run, and Riffle of Streams in Wuling Area." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/19563603426506026085.

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碩士<br>國立中興大學<br>生命科學系所<br>97<br>Channel units that differ in water depth, velocity and substratum characteristics may influence the distribution of riverine organisms. In this study, I compared the biomass and composition of diatom communities in the riffle, run and pool of stream channels, and to determine the relationships between the heterogeneity of diatom community and environmental factors. Three reaches that consist of 3 types of channel units were selected from Taoshan North, Cijiawan and Yousheng stream in the Wuling Area. There were 5-6 transects across each reach, and sampling points separated at a distance of 50 cm along transects were set for periphyton sampling and environmental factors measurement. The results revealed that Achnanthes biasolettiana var. biasolettiana, Planothidium lanceolatum and Achnanthidium minutissimum that are adapted to low nutrient and high disturbance were the most abundant diatom species in the Wuling Area. They contributed to 64.17% of the total relative abundance. However, in Yousheng stream, there are more abundant of Nitzschia spp. that are the bioindicators of eutrophication and organic polluted water, which can be attributed to the stream draining from an intense agricultural area and suffering high nutrient loading. The results of community structure analysis show that eplithic diatom biomass and community structure was significantly different among channel units, and water velocity was the major factor to explain the differences. Biomass was lowest in runs or riffles with higher velocity, due to shear stress caused the lose of biomass under the condition of fast water velocity. When diatom community approached the late stage of succession, community structure did not differ among channel units in Taoshan North Stream where water velocity averaged 25 cm/s. However, community structure were significantly different among channel units in Cijiawan and Yousheng stream where water velocity averaged 47 cm/s and 35 cm/s, respectively. The diatom species, Cocconeis placentula var. euglypta、Mayamaea atomus and Reimeria sinuate, that are adapted to high water velocity, were more abundant in the channel units with higher water velocity. The epilithic diatoms were categorized into 3 ecological guilds based on their potential to tolerate nutrient limitation and physical disturbance, the low profile guild was most abundant in all microhabitats (relative abundance 69-88%). The relative abundance of guilds were similar among channel units within each sampling reach, but differed among sampling reaches. Low profile guild was most abundant in Cijiawan Stream (88%) with highest water velocity, High profile guild was most abundant in Taoshan North Stream (22%) with lowest water velocity and motile guild was most abundant in Yousheng Stream (16%) with highest nutrient concentrations. The results show that water velocity was the major factor determining the variations of biomass, abundance and community structure among channel units at the reach scale in the Wuling Area, and the effect of velocity emerged in the channel units where the water velocity was fast. In addition, the results show the importance of sampling in different channel units, particularly in streams with fast water velocity, in order to properly assess the diatom community of a reach in a stream.
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Book chapters on the topic "Riffle-pool structure"

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"Propagated Fish in Resource Management." In Propagated Fish in Resource Management, edited by MAUREEN G. WALSH and DANA L. WINKELMAN. American Fisheries Society, 2004. http://dx.doi.org/10.47886/9781888569698.ch35.

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&lt;em&gt;Abstract.&lt;/em&gt;—Rainbow trout &lt;em&gt;Oncorhynchus mykiss &lt;/em&gt;have been widely stocked throughout the United States as a popular sport fish. Our study was initiated to evaluate potential effects of rainbow trout introduction on native fishes to inform future decisions about trout stocking in northeastern Oklahoma streams. We sampled fish assemblages in pools, glides, and riffles in Brush Creek, Delaware County, Oklahoma, from February 2000 to September 2002, and experimentally stocked rainbow trout into the stream from November 2000 to March 2001 and November 2001 to March 2002. We used a combination of multivariate analyses to evaluate seasonal and habitat effects on native fish assemblages and to compare assemblage structure between prestocking, the first year of stocking, and the second year of stocking. Mesohabitat type significantly affected assemblage structure among years, whereas we did not detect an effect of season. We did not detect differences in assemblage structure among years in glide or riffle habitats. Native fish assemblage structure in pool habitats before rainbow trout introduction differed from assemblage structure in both the first and second year of stocking. Declines in seven species, including two native game fish (smallmouth bass &lt;em&gt;Micropterus dolomieu &lt;/em&gt;and bluegill &lt;em&gt;Lepomis machrochirus&lt;/em&gt;), contributed to assemblage dissimilarity in pool habitats between prestocking conditions and the second year of stocking. Our results indicate that stocking rainbow trout may cause local disruption in assemblage structure in pool habitats.
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Conference papers on the topic "Riffle-pool structure"

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Neff, Keil J., John S. Schwartz, Andrew B. Dodson, and Michael S. Hamrick. "A Modeling Approach to Restoring Pool-Riffle Structure in an Incised, Straightened Channel of an Urban Stream." In World Environmental and Water Resources Congress 2010. American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41114(371)194.

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Rodríguez, José F., Carlos M. García, and Marcelo H. García. "Mean Flow and Turbulence Characteristics in Pool-Riffle Structures." In Hydraulic Measurements and Experimental Methods Specialty Conference (HMEM) 2002. American Society of Civil Engineers, 2002. http://dx.doi.org/10.1061/40655(2002)102.

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Volkwein, M. R. "Comparison and Analysis of Hydrodynamic Models for Restoration Projects: The Case of Pool-Riffle Structures." In World Environmental and Water Resources Congress 2011. American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41173(414)328.

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