Academic literature on the topic 'Benthic macroinvertebrates'

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Journal articles on the topic "Benthic macroinvertebrates"

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Luo, Zhi Wen, and Wen Yan Wu. "A Study on the Tolerance Value and Biodiversity of Benthic Macroinvertebrates." Applied Mechanics and Materials 513-517 (February 2014): 3283–86. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.3283.

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Macroinvertebrates are important components of stream ecosystems. A field experiment was conducted to study the effects of substrate particle size, shape, and roughness on the composition and biodiversity of macroinvertebrates. The results show that the particle sizes, porosity, and interstial dimensions of the substrate affect the macroinvertebrate community, while the shape and surface roughness of the substrate do not strongly affect the macrobenthos composition and density. The macroinvertebrate composition in gravel is stable. The density and species richness in the gravels, leaf humus and are much higher than those in the black silt and sands.
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Shah, Deep N., Ram D. Tachamo Shah, and Bandana K. Pradhan. "Diversity and Community Assemblage of Littoral Zone Benthic Macroinvertebrates in Jagadishpur Reservoir." Nepal Journal of Science and Technology 12 (July 23, 2012): 211–19. http://dx.doi.org/10.3126/njst.v12i0.6505.

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Littoral benthic macroinvertebrates diversity and community assemblage of Jagadishpur Reservoir were studied during post-monsoon (2008) and pre-monsoon (2009) seasons. Altogether twelve sites in the littoral zone of the reservoir were sampled for benthic macroinvertebrates by using a kick-and-sweep method with a standard handnet. At each site, benthic macroinvertebrate samples were taken from different possible substrate types. The environmental variables of each site were collected based on Lentic Ecosystem Field Protocol during sampling. Biological metrics were used to describe the diversity and composition of benthic macroinvertebrates. The relationship between benthic macroinvertebrates assemblage and substrate types were examined by using principal component analysis. Cluster analyses were performed to describe the similarity among samples. In total, 50 taxa, belonging to 15 orders were recorded for littoral zone of the reservoir. The recorded higher number of taxa (family level) belonged to order Heteroptera (water bugs) and Diptera (flies), and class Mollusca. Mollusca for post-monsoon and Diptera (particularly Chironomidae) for pre-monsoon shared the highest proportion in the total density. Shannon diversity index (H’) for post-monsoon was 1.82±0.46 and for pre-monsoon was 1.38±0.53 and was significantly different between seasons (p=0.01). Principal component analysis revealed that increase in taxa numbers were positively correlated to soft substrates while negatively correlated to non-soft substrates in littoral zone of the reservoir. Cluster analyses discriminated the sites into two main groups for both seasons. The study concludes that benthic macroinvertebrates diversity is highly influenced by substrate types, water level fluctuation, and human accessibility to the reservoir. Therefore, in order to stabilize benthic macroinvertebrates diversity and their abundance, it is essential to maintain surface water level, stabilize bank substrate and minimize human pressure.DOI: http://dx.doi.org/10.3126/njst.v12i0.6505 Nepal Journal of Science and Technology 12 (2011) 211-19
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Huong, Nguyen Thi Thanh, Pham Anh Duc, and Pham Van Mien. "Changes of Benthic Macroinvertebrates in Thi Vai River and Cai Mep Estuaries Under Polluted Conditions with Industrial Wastewater." GeoScience Engineering 63, no. 2 (June 27, 2017): 19–25. http://dx.doi.org/10.1515/gse-2017-0008.

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Abstract The pollution on the Thi Vai River has been spreading out rapidly over the two lasted decades caused by the wastewater from the industrial parks in the left bank of Thi Vai River and Cai Mep Estuaries. The evaluation of the benthic macroinvertebrate changes was very necessary to identify the consequences of the industrial wastewater on water quality and aquatic ecosystem of Thi Vai River and Cai Mep Estuaries. In this study, the variables of benthic macroinvertebrates and water quality were investigated in Thi Vai River and Cai Mep Estuaries, Southern Vietnam. The monitoring data of benthic macroinvertebrates and water quality parameters covered the period from 1989 to 2015 at 6 sampling sites in Thi Vai River and Cai Mep Estuaries. The basic water quality parameters were also tested including pH, dissolved oxygen (DO), total nitrogen, and total phosphorus. The biodiversity indices of benthic macroinvertebrates were applied for water quality assessment. The results showed that pH ranged from 6.4 – 7.6 during the monitoring. The DO concentrations were in between 0.20 - 6.70 mg/L. The concentrations of total nitrogen and total phosphorous ranged from 0.03 - 5.70 mg/L 0.024 - 1.380 mg/L respectively. Macroinvertebrate community in the study area consisted of 36 species of polychaeta, gastropoda, bivalvia, and crustacea, of which, species of polychaeta were dominant in species number. The benthic macroinvertebartes density ranged from 0 - 2.746 individuals/m−1 with the main dominant species of Neanthes caudata, Prionospio malmgreni, Paraprionospio pinnata, Trichochaeta carica, Maldane sarsi, Capitella capitata, Terebellides stroemi, Euditylia polymorpha, Grandidierella lignorum, Apseudes vietnamensis. The biodiversity index values during the monitoring characterized for aquatic environmental conditions of mesotrophic to polytrophic. Besides, species richness positively correlated with DO, total nitrogen, and total phosphorus. The results confirmed the advantage of using benthic macroinvertebrates and their indices for water quality assessment.
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Curtean-Bănăduc, Angela, and Adina Nicoleta Farcaş. "Timiş River (Banat, Romania) Benthic Macroinvertebrate Communities Structure Spatial Dinamic." Transylvanian Review of Systematical and Ecological Research 15, no. 3 (December 1, 2013): 123–32. http://dx.doi.org/10.2478/trser-2013-0038.

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ABSTRACT This study presents the description of the structure of benthic macroinvertebrate communities of the Timiș River (Danube Watershed) in correlation with environmental parameters. The results are based on quantitative benthic macroinvertebrates (105 samples) taken in 2011 (June-September) from 21 stations of the the Timiş River, situate between its sources and the Romanian-Serbian border (241 km). The assessed biotope variables were: altitude, slope, riverbed width, depth, substratum types, channel modification and water physico-chemical caracteristics. The results of the study reveal that the spatial structure of benthic macroinvertebrates is induced by the substrate type, by the minor riverbed modifications in comparison with the natural conditions and the quantities of oxidable matters in the water.
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Kim, Dong-Kyun, Hyunbin Jo, Kiyun Park, and Ihn-Sil Kwak. "Assessing Spatial Distribution of Benthic Macroinvertebrate Communities Associated with Surrounding Land Cover and Water Quality." Applied Sciences 9, no. 23 (November 28, 2019): 5162. http://dx.doi.org/10.3390/app9235162.

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The study aims to assess the spatial distribution of benthic macroinvertebrate communities in response to the surrounding environmental factors related to land use and water quality. A total of 124 sites were surveyed at the Seomjin River basin in May and September 2017, respectively. We evaluated the abundance and composition of benthic macroinvertebrate communities based on nine subwatersheds. Subsequently, we compared the benthic information with the corresponding land use and water quality. To comprehensively explore the spatiotemporal distinction of benthic macroinvertebrate communities associated with those ambient conditions, we applied canonical correspondence analysis (CCA). The CCA results explicitly accounted for 61% of the explanatory variability; the first axis (45.5%) was related to land-use factors, and the second axis (15.5%) was related to water quality. As a result, the groups of benthic communities were distinctly characterized in relation to these two factors. It was found that land-use information is primarily an efficient proxy of ambient water quality conditions to determine benthic macroinvertebrates, such as Asellus spp., Gammarus spp., and Simulium spp. in a stream ecosystem. We also found that specific benthic families or genera within the same groups (Coleoptera, Diptera, Ephemeroptera, and Trichoptera) are also differentiated from ambient water quality changes as a secondary component. In particular, the latter pattern appeared to be closely associated with the impact of summer rainfall on the benthic community changes. Our study sheds light upon projecting benthic community structure in response to changes of land use and water quality. Finally, we conclude that easily accessible information, such as land-use data, aids in effectively characterizing the distribution of benthic macroinvertebrates, and thus enables us to rapidly assess stream health and integrity.
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Ntislidou, Chrysoula, Dimitra Bobori, and Maria Lazaridou. "Suggested Sampling Methodology for Lake Benthic Macroinvertebrates under the Requirements of the European Water Framework Directive." Water 13, no. 10 (May 13, 2021): 1353. http://dx.doi.org/10.3390/w13101353.

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The estimation of the number of samples required for reliably monitoring lakes’ benthic macroinvertebrates is difficult due to the natural variability and cost and time constraints. To determine a statistically robust and effective sampling design, we collected benthic macroinvertebrate samples from 15 Greek natural lakes. We compared the spatial and temporal variability of the benthic macroinvertebrate community composition to identify differences among lakes, between lake zones (sublittoral and profundal) and sampling periods. Furthermore, we examined the sampling precision and determined the number of required samples to attain maximum taxa richness. The diminution of the sampling effort was estimated and the desired precision level, considering different benthic macroinvertebrate abundances, was modelled. No temporal or spatial variation between lake zones was observed in communities’ compositions. The precision of our sampling design was adequate, and rarefaction curves revealed an adequate taxa richness (>70%). The developed model could be applied to assess the required sampling effort in lakes within the Mediterranean ecoregion with similar benthic macroinvertebrate abundances.
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Firdhausi, Nirmala Fitria. "Pengenalan Makroinvertebrata Bentik sebagai Bioindikator Pencemaran Perairan Sungai pada Siswa di Wonosalam, Mojokerto, Jawa Timur." Agrokreatif: Jurnal Ilmiah Pengabdian kepada Masyarakat 5, no. 3 (November 27, 2019): 210–15. http://dx.doi.org/10.29244/agrokreatif.5.3.210-215.

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The river in Wonosalam is upstream of the rivers that flow in the Mojokerto and Jombang regions. As an upstream area, monitoring water quality of the river is needed so that pollution can be detected early. Water quality monitoring activities can be carried out using benthic macroinvertebrates indicator. The purpose of this PKM activity was to introduce water quality monitoring methods used benthic macroinvertebrates as bioindicators for students in the Wonosalam sub-district area. The main target of this activity is students of SLTPN 1 Wonosalam. The method used was lecturing, direct practicing, and discussion. Introduction of the benthic macroinvertebrates as a bioindicator was carried out very well: the students were very enthusiastic in the implementation activities from beginning to end, the students were quite active in the sampling process until the identification process, there was an increase in the students knowledge about bioindicators and the students were able to distinguish groups, EPT (Ephemeroptera, Plecoptera, and Trichoptera) and non-EPT. Based on benthic macroinvertebrate sampling the result showed that the value of the Sumber Bengawan river are 6.25, indicated that Sumber Bengawan river was not polluted.
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Huh, Man Kyu. "Community Analysis and Water Quality of Benthic Macroinvertebrates at Gwangseok stream in Korea." European Journal of Engineering Research and Science 4, no. 1 (January 26, 2019): 97–100. http://dx.doi.org/10.24018/ejers.2019.4.1.1051.

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The study was to investigate species composition and biological water quality of benthic macroinvertebrates among localities at Gwangseok stream, Jinhae city in Korea. The identified benthic macroinvertebrates were 781 individuals belonged to 19 species, 14 families, 8 orders, 5 classes and 3 phyla. The value of dominance index (DI) was varied from 0.184 (St. C) to 0.333 (St. A) with a mean of 0.235. DI was significantly different among the four regions. Beck-Tsuda's Biotic Index (BI) was varied from 7 (St. D) to 20 (St. C) with a mean of 14. Total ecological score of benthic macroinvertebrate community (TESB) was varied from 12 (St. D) to 38 (St. B) with a mean of 26.3. Average ecological score of benthic macroinvertebrate community (AESB) was varied from 1.714 (St. D) to 1.900 (St. B) with a mean of 1.821. Benthic macroinvertebrate index (BMI) ) was varied from 22.354 (St. A) to 26.474 (St. D) with a mean of 39.756. Shannon-Weaver index (H´) for mammals at the upper regions (St. A and St. B) was higher than those of low regions (St. C and St. D). Berger-Parker’s index (BPI) was varied from 0.218 (St.. C) to 0.346 (St. A). Richness (R1) was different from each other and R2 was not shown significant differences (p < 0.05). Evenness indices (E1-E5) for four stations were different from each other, however there were not shown significant differences (p < 0.05).
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Huh, Man Kyu. "Community Analysis and Water Quality of Benthic Macroinvertebrates at Gwangseok stream in Korea." European Journal of Engineering and Technology Research 4, no. 1 (January 26, 2019): 97–100. http://dx.doi.org/10.24018/ejeng.2019.4.1.1051.

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The study was to investigate species composition and biological water quality of benthic macroinvertebrates among localities at Gwangseok stream, Jinhae city in Korea. The identified benthic macroinvertebrates were 781 individuals belonged to 19 species, 14 families, 8 orders, 5 classes and 3 phyla. The value of dominance index (DI) was varied from 0.184 (St. C) to 0.333 (St. A) with a mean of 0.235. DI was significantly different among the four regions. Beck-Tsuda's Biotic Index (BI) was varied from 7 (St. D) to 20 (St. C) with a mean of 14. Total ecological score of benthic macroinvertebrate community (TESB) was varied from 12 (St. D) to 38 (St. B) with a mean of 26.3. Average ecological score of benthic macroinvertebrate community (AESB) was varied from 1.714 (St. D) to 1.900 (St. B) with a mean of 1.821. Benthic macroinvertebrate index (BMI) ) was varied from 22.354 (St. A) to 26.474 (St. D) with a mean of 39.756. Shannon-Weaver index (H´) for mammals at the upper regions (St. A and St. B) was higher than those of low regions (St. C and St. D). Berger-Parker’s index (BPI) was varied from 0.218 (St.. C) to 0.346 (St. A). Richness (R1) was different from each other and R2 was not shown significant differences (p < 0.05). Evenness indices (E1-E5) for four stations were different from each other, however there were not shown significant differences (p < 0.05).
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Young, B. A., R. H. Norris, and F. Sheldon. "Is the hyporheic zone a refuge for macroinvertebrates in drying perennial streams?" Marine and Freshwater Research 62, no. 12 (2011): 1373. http://dx.doi.org/10.1071/mf11060.

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Drought and drying of perennial streams plays a central role in determining the structure of in-stream communities, decreasing taxa richness and abundance and changing trophic organisation. Further, flow cessation can increase spatial β-diversity of macroinvertebrate communities across disconnected sites. It has been hypothesised that the hyporheic zone may act as a refugium for benthic macroinvertebrates during low flow and flow cessation, but evidence remains equivocal. We explored hyporheic and surface benthic macroinvertebrate community changes associated with low flow and flow cessation conditions during a supra-seasonal drought on two normally perennial rivers: the Cotter and Queanbeyan Rivers (Canberra, ACT). Surface benthic and hyporheic samples were collected from these two rivers and four associated tributary streams across a drying gradient during dry conditions and after flow recovery to test whether macroinvertebrates in perennial streams utilise the hyporheic zone as a refugium and whether there is greater variability in the macroinvertebrate community at sites experiencing flow cessation compared with wetter sites. Low flow had no impact on macroinvertebrate taxa richness or density in either surface benthic or hyporheic habitats, whereas density and taxa richness declined during streambed drying, suggesting that the hyporheic zone did not provide a refugium for some taxa during these dry conditions. Spatial β-diversity peaked at dry sites, likely in response to the broad range of environmental conditions that may differ between refuges and sites, but decreased after flow recovery. Refuges in perennial streams appear more vulnerable to human disturbances during dry periods because a loss of suitable refuges can affect the ability of some macroinvertebrate taxa to recolonise after flow recovery.
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Dissertations / Theses on the topic "Benthic macroinvertebrates"

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Christman, Van D. "Ecology of benthic macroinvertebrates in experimental ponds." Diss., This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-07282008-134927/.

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Johansson, Andreas. "Effects of beaver dams on benthic macroinvertebrates." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-396803.

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In the 1870's the beaver (Castor fiber), population in Sweden had been exterminated. Thebeaver was reintroduced to Sweden from the Norwegian population between 1922 and 1939.Today the population has recovered and it is estimated that the population of C. fiber in all ofEurope today ranges around 639,000 individuals. The main aim with this study was toinvestigate if there was any difference in species diversity between sites located upstream anddownstream of beaver ponds. I found no significant difference in species diversity betweenthese sites and the geographical location of the streams did not affect the species diversity.This means that in future studies it is possible to consider all streams to be replicates despiteof geographical location. The pond age and size did on the other hand affect the speciesdiversity. Young ponds had a significantly higher diversity compared to medium-aged ponds.Small ponds had a significantly higher diversity compared to medium-sized and large ponds.The upstream and downstream reaches did not differ in terms of CPOM amount but somewater chemistry variables did differ between them. For the functional feeding groups I onlyfound a difference between the sites for predators, which were more abundant downstream ofthe ponds.
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Gabel, Friederike. "Impacts of ship-induced waves on benthic macroinvertebrates." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2012. http://dx.doi.org/10.18452/16498.

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Schifffahrt stellt weltweit eine der wichtigsten Nutzungen der Flüsse und Seen dar, die zukünftig weiter zu nimmt. Sie schädigt Ufer durch Wellenschlag erheblich. Die Effekte von Schiffswellen auf benthische Wirbellose sind aber bisher kaum bekannt, obwohl diese eine zentrale Rolle im litoralen Nahrungsnetz spielen. Daher untersuchte ich 1) die direkten Effekte von Schiffswellen auf benthische Wirbellose, 2) die resultierenden Auswirkungen auf trophische Interaktionen und 3) das Wachstum und die Fitness von Wirbellosen, sowie 4) die langfristigen Änderungen der litoralen Wirbellosenzönosen. Labor- und Feldversuche zeigten, dass mit zunehmender wellengenerierter Sohlschubspannung mehr Individuen verdriftet wurden. Die Verdriftung wurde jedoch durch eine hohe strukturelle Habitatkomplexität gemindert, da diese die Wellenenergie stärker dissipierte und den Wirbellosen bessere Festhaltemöglichkeiten bot. Die Verdriftung der Wirbellosen bewirkte ein höheres Prädationsrisiko durch spindelförmige Fische, während hochrückige Fische die Ingestion bei Wellenexposition reduzierten. Wellenschlag verringerte auch das Wachstum und die Fitness nativer Wirbellosenarten, indem die Ingestion verringert oder der Energieverbrauch erhöht wurde, wohingegen Neozoen nicht beeinträchtigt wurden. Der kumulative Effekt von Schiffswellen veränderte die Artenzusammensetzung benthischer Zönosen sehr. Die Abundanz nativer Wirbelloser und die Artenzahl waren an exponierten Ufern geringer, während die Abundanz invasiver Arten zunahm. Folglich beeinträchtigen Schiffswellen benthische Wirbellose auf der Ebene der Individuen, Arten, Zönosen, sowie tropischer Interaktionen, und können so die ökologische Struktur und Funktion des gesamten Litorals beeinflussen. Durch Schutz komplexer Habitate wie Wurzeln und dichte Schilfbestände, sowie durch Wellenschlagsreduzierung durch größere Mindestabstände zum Ufer und angepasste Fahrtgeschwindigkeit, können die Auswirkungen von Schiffswellen gemindert werden.
Inland navigation is a major human use of rivers and lakes worldwide which is expected to increase in the future. It significantly affects shore habitats by ship-induced waves. In contrast to the importance of such pressures, the effects of these hydrodynamic disturbances on benthic invertebrates in the littoral zones are poorly understood, even that invertebrates are a central element of littoral food webs. Hence, I investigated 1) the direct and immediate effects of ship-waves on benthic invertebrates, 2) their subsequent effects on trophic interactions and 3) on the growth and fitness of invertebrates, and finally 4) the long-term effects on the community composition. Laboratory and field experiments showed increasing detachment of invertebrates with higher wave-induced shear stress. Detachment was significantly mitigated by higher structural complexity of the habitats, as complex habitats dissipate wave energy and provide better fixing possibilities. Moreover dislodgement of invertebrates led to a higher risk of being preyed upon by fusiform fish, while deep bodied fish reduced feeding under waves. Waves also reduced growth and fitness of native invertebrates via reduced feeding or increased energy costs, while non-native invertebrates were not affected. The cumulative impact of ship-waves alters the community composition of benthic invertebrates. The abundance of native invertebrates and total species richness was lower at exposed sites, while non-native invertebrates increased in abundance. Thus, ship-waves affect benthic invertebrates on the individual, species, and community levels, as well as the interaction of trophic levels, and hence will alter the ecological structure and function of whole littoral zones. Adverse effects of ship-waves may be mitigated by protecting structural complex habitats such as tree roots and dense reed belts, and by minimizing wave generation by increasing minimum sailing distance to shore or by adjusting vessel speed.
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Garey, Andrew L. "The Effects of Hydropeaking on Lotic Benthic Macroinvertebrate Assemblages." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/4057.

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The term hydropeaking refers to anthropogenically induced, short-duration, high-magnitude discharge pulses that are generated in lotic systems for electricity production. The practice of hydropeaking produces the largest source of renewable energy worldwide, and its use is projected to increase through the year 2040. The primary objective of this work was to evaluate the effects of hydropeaking on benthic macroinvertebrate assemblages, which are important components of lotic ecosystems. Results of this work show that, across a wide range of impacted systems worldwide, the consistently observed patterns of elevated benthic macroinvertebrate drift in response to hydropeaking pulses are primarily related to the rate at which discharge is increased (i.e., ramping rate) and secondarily to the time between pulses. In addition, it was shown that taxa inhabiting depositional habitat patches (i.e. fine substrates and slow water velocities) were most susceptible to peaking-induced drift, and that these taxa were also those most prevalent in hydropeaking-impacted systems. Collectively, these results suggest that increased pulse ramping rate and the resulting elevated macroinvertebrate drift may be positive selective forces, which benefit populations adapted for life in hydropeaking-impacted lotic ecosystems. These results provide a greater understanding of the factors that are most important for governing the effects of hydropeaking on benthic assemblages.
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O'Hare, Matthew Thomas. "Flow preferences of benthic macroinvertebrates in three Scottish rivers." Thesis, University of Glasgow, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312705.

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Song, Mi-Young. "Ecological quality assessment of stream ecosystems using benthic macroinvertebrates." Toulouse 3, 2007. http://thesesups.ups-tlse.fr/224/.

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Dans cette étude, nous avons appliqué le modèle SOM (Self-Organizing Map) pour une évaluation de la qualité écologique de l'écosystème aquatique en se basant sur les macroinvertébrés benthiques. D'abord, dans le chapitre I, le SOM a été utilisé pour extraire les informations à partir de grandes matrices de données complexes de variables environnementales et des macroinvertébrés benthiques des différents microhabitats. Bien que les échantillonnages aient e��té réalisés dans une zone limitée, le patron des variables environnementales révèle une hétérogénéité spatiale. Les classes de macroinvertébrés dans le modèle SOM ont montré une variation temporelle et permettent l'évaluation de la qualité de l'eau en accord avec les conditions des différents microhabitats. En conséquence, l'hétérogénéité spatiale locale est importante en révélant les dynamiques des communautés et les indices biotiques, particulièrement en rapport avec le processus de restauration des rivières polluées. Dans le chapitre II, les échantillons ont été classés en 3 groupes principaux par le modèle SOM pour distinguer les assemblages EPTC (Ephéméroptères, Plécoptères, Trichoptères, Coléoptères) dans les cours d'eaux du Coteau de Gascogne, tributaires de la Garonne (sud-ouest France). Des faibles richesses et diversités ont été observées dans cette zone affectée par une pratique agricole intensive, caractérisée par de très fortes valeurs de TDS (Total Dissolved Solids), nitrate (NO3) et COD (Chemical Oxygen Demand). Les espèces EPTC tolérantes ont été utilisées comme paramètres de contrôle pour les changements d'assemblage de communautés collectées dans des sites impactés par la pratique agricole. .
In this study, we applied the SOM for ecological assessment using benthic macroinvertebrates in aquatic ecosystem. First, Chapter I, SOM was utilized to extract information from complex data of environmental variables and benthic macroinvertebrate communities residing in different micro-habitats. Although the sampling was carried out in a limited area, the patterns of environmental variables revealed spatial heterogeneity. The clustering of benthic macroinvertebrate communities in the trained SOM was efficient in showing temporal variation and evaluating water quality according to the conditions of different micro-habitats. Consequently, local spatial heterogeneity is important in revealing dynamics of community abundance and biotic indices, especially regarding restoration processes in polluted streams. Chapter II, the samples were grouped into three main clusters corresponding to distinc EPTC assemblages in the tributary streams of the Garonne River catchment, southern France. Lower richness and diversity of macroinvertebrates were observed in the areas affected by agricultural land use, being associated with high Total Dissolved Solids (TDS), Nitrate (NO3) and Chemical Oxygen Demand (COD). Tolerant EPTC species were identified as controlling parameters for the changes in the assemblages collected at the agricultural-impacted sites. .
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Roberts, Lenn Darrell. "Benthic Macroinvertebrate Susceptibility to Trout Farm Effluents." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/35004.

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The direct effects of a Virginia trout farm on benthic macroinvertebrates were examined using multiple approaches. Static laboratory tests with the amphipod, Hyallela azteca, were conducted with exposures to water taken from a spring, effluent above a sedimentation basin, and effluent below a sedimentation basin. On-site mesocosms were constructed to expose previously colonized artificial substrates to the same treatments as the laboratory tests. Flat-headed mayflies were also collected from a nearby stream and transported to the mesocosms for a 10 day exposure. There was no significant difference between treatments in the laboratory tests after 20 days, but after 28 days the control was significantly lower than the above sedimentation basin treatment in one test. In the multispecies field tests, a clear decrease in total invertebrate abundance and EPT abundance was seen in the effluent treatments compared to the spring water treatments, with a slight improvement in survival in the treatment below the sedimentation basin. However, only total invertebrate abundance after 21 days produced statistically significant differences. A significant difference was detected between the effluent and the spring treatments in the flat-headed mayfly field test. We suggest that the effects seen in this study do not explain the lack of taxa richness in the receiving stream. The main cause of mortality from trout effluents appears to be solids accumulating upon the organisms, and sedimentation basins should be effective best management practices for protecting macroinvertebrates.
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Foster, Carole A. "Benthic macroinvertebrates in Uvas Creek, California, downstream of a reservoir." Thesis, San Jose State University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1583489.

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I sampled macroinvertebrates in May, July, and October 2008 in Uvas Creek, a reservoir-regulated stream in south Santa Clara County, California, to assess what factors (including canopy closure, turbidity, and stream flow) downstream of the reservoir were related to food availability for rearing juvenile Steelhead (Oncorhynchus mykiss). I found benthic and drifting macroinvertebrate biomass was considerably greater during most months in the more open-canopied two sites in the downstream reach as compared to the densely shaded, more turbid and silty two sites in the upstream reach. Abundance of important drifting aquatic invertebrates in May (chironomids, simuliids, and baetids) was proportional to benthic abundance, but large hydropsychids were relatively scarce in the drift. Terrestrial drift abundance correlated with canopy density, but differences were small compared to the substantial increase in aquatic drift in sunnier sites. Thinning of the canopy at select locations and reduction of sediment input to Uvas Creek and its tributaries due to vineyard and other operations could increase benthic macroinvertebrate productivity in the upstream reach, which would increase food availability for rearing juvenile Steelhead.

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Kaller, Michael D. "Effects of sediment upon benthic macroinvertebrates in forested northern Appalachian streams." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1862.

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Thesis (M.S.)--West Virginia University, 2001.
Title from document title page. Document formatted into pages; contains x, 157 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references.
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McNish, Julie Helen. "An interdisciplinary assessment of variations in acidity in Yorkshire rivers, with special reference to episodic acidification of headwaters in the Esk catchment." Thesis, University of Huddersfield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285628.

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Books on the topic "Benthic macroinvertebrates"

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Scisco, Michael S. Benthic macroinvertebrates of Squalicum Creek. Bellingham, WA: Huxley College of the Environment, Western Washington University, 2003.

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Plotnikoff, R. W. Instream biological assessment monitoring protocols: Benthic macroinvertebrates. Olympia, WA: Washington Department of Ecology, 1994.

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O'Connell, M. F. A survey of benthic macroinvertebrates in rivers in Placentia Bay, Newfoundland. Ottawa, Ont: Dept. of Fisheries and Oceans, 1996.

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Wiens, A. P. Surveys of benthic macroinvertebrates in Playgreen and Kiskittogisu Lakes, Northern Manitoba. Winnipeg, Man: Central and Arctic Region, Dept. of Fisheries and Oceans, 1991.

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Atkinson, Ross. Detour Lake Mine: Examination of fish and benthic macroinvertebrates, October 1990. Toronto: Environmental Applications Group, 1990.

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Neale, Martin William. Classifying and measuring the ecological status of lakes using benthic macroinvertebrates. [S.l: The Author), 2004.

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Casey, Richard J. Development of long-term biomonitoring in Elk Island National Park using benthic macroinvertebrates. Vegreville, Alta., Canada: Alberta Environmental Protection, Alberta Environmental Centre, 1995.

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Casey, Richard J. Artificial substrata as quantitative sampling devices of benthic macroinvertebrates in flowing water habitats. Vegreville, Alta: Alberta Environmental Centre, 1994.

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Rehn, Andrew C. Benthic macroinvertebrates as indicators of biological condition below hydropower dams: PIER final project report. [Sacramento, Calif.]: California Energy Commission, 2010.

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Plotnikoff, Robert W. Stream biological assessments (benthic macroinvertebrates) for watershed analysis: Mid-Sol Duc Watershed case study. Olympia, Wash: Washington State Department of Ecology, 1998.

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Book chapters on the topic "Benthic macroinvertebrates"

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Lathrop, Richard C. "Benthic Macroinvertebrates." In Food Web Management, 173–92. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-4410-3_10.

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Oswood, Mark W., L. Keith Miller, and John G. Irons. "Overwintering of Freshwater Benthic Macroinvertebrates." In Insects at Low Temperature, 360–75. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4757-0190-6_15.

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Hill, Graham, Ian Maddock, and Melanie Bickerton. "Testing the Relationship Between Surface Flow Types and Benthic Macroinvertebrates." In Ecohydraulics, 213–28. Chichester, UK: John Wiley & Sons, Ltd, 2013. http://dx.doi.org/10.1002/9781118526576.ch12.

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He, Fengzhi, Xiaoling Sun, Xiaoyu Dong, Qinghua Cai, and Sonja C. Jähnig. "Benthic Macroinvertebrates as Indicators for River Health in Changjiang Basin." In Terrestrial Environmental Sciences, 207–17. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97725-6_14.

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Çamur-Elipek, Belgin, Bülent Şen, Gazel Burcu Aydın, Menekşe Taş-Divrik, and Pınar Yıldırım. "Benthic Macroinvertebrates of the Tigris and Euphrates Rivers in Turkey." In Tigris and Euphrates Rivers: Their Environment from Headwaters to Mouth, 1539–60. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-57570-0_78.

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Mir, Zahoor Ahmad, Mohammad Yasir Arafat, and Yahya Bakhtiyar. "Benthic Macroinvertebrates as Bioindicators of Water Quality in Freshwater Bodies." In Freshwater Pollution and Aquatic Ecosystems, 165–84. New York: Apple Academic Press, 2021. http://dx.doi.org/10.1201/9781003130116-7.

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Dahl, Joakim, Richard K. Johnson, and Leonard Sandin. "Detection of Organic Pollution of Streams in Southern Sweden Using Benthic Macroinvertebrates." In Integrated Assessment of Running Waters in Europe, 161–72. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-007-0993-5_10.

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Sandin, Leonard, Joakim Dahl, and Richard K. Johnson. "Assessing Acid Stress in Swedish Boreal and Alpine Streams Using Benthic Macroinvertebrates." In Integrated Assessment of Running Waters in Europe, 129–48. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-007-0993-5_8.

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Usseglio-Polatera, Philippe, Michel Bournaud, Philippe Richoux, and Henri Tachet. "Biomonitoring through biological traits of benthic macroinvertebrates: how to use species trait databases?" In Assessing the Ecological Integrity of Running Waters, 153–62. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4164-2_12.

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Vlek, Hanneke E., Piet F. M. Verdonschot, and Rebi C. Nijboer. "Towards a Multimetric Index for the Assessment of Dutch Streams Using Benthic Macroinvertebrates." In Integrated Assessment of Running Waters in Europe, 173–89. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-007-0993-5_11.

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Conference papers on the topic "Benthic macroinvertebrates"

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Wang, Hongwei, Likun Yang, Chunlong Zhao, Zhaojin Cui, Haitao Zhao, Weifeng Tang, and Qianqian Liu. "The Investigation of benthic macroinvertebrates in Baiyangdian Lake." In 2015 3rd International Conference on Advances in Energy and Environmental Science. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/icaees-15.2015.229.

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Sohrab, Fahad, and Jenni Raitoharju. "Boosting Rare Benthic Macroinvertebrates Taxa Identification With One-Class Classification." In 2020 IEEE Symposium Series on Computational Intelligence (SSCI). IEEE, 2020. http://dx.doi.org/10.1109/ssci47803.2020.9308359.

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Nurhafizah-Azwa, S., and Ahmad A. K. "Biodiversity of benthic macroinvertebrates in Air Terjun Asahan, Asahan, Melaka, Malaysia." In THE 2016 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Author(s), 2016. http://dx.doi.org/10.1063/1.4966875.

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Trisina, William, and Jian-Ping Suen. "A Study of Benthic Macroinvertebrates and Hyporheic Zone at Wu Gou Shui Area, Taiwan." In World Environmental and Water Resources Congress 2013. Reston, VA: American Society of Civil Engineers, 2013. http://dx.doi.org/10.1061/9780784412947.038.

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Kokesh, Broc, Susan Kidwell, and Dany E. Burgess. "TAXONOMIC SURROGACY OF BENTHIC MACROINVERTEBRATES ALONG DEPTH AND SUBSTRATE GRADIENTS IN THE PUGET SOUND." In GSA Connects 2021 in Portland, Oregon. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021am-370143.

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Mustaqim-Alias, M., and A. K. Ahmad. "Benthic macroinvertebrates diversity and water quality assessment at Sungai Congkak recreational area, Hulu Langat, Selangor." In THE 2013 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2013 Postgraduate Colloquium. AIP Publishing LLC, 2013. http://dx.doi.org/10.1063/1.4858721.

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NAKIN, MOTEBANG DOMINIC VINCENT, ANELISA QHAWEKAZI BOVUNGANA, and VANESSA NONTSIKELELO MAJIZA. "SPATIAL AND TEMPORAL VARIATIONS IN THE DISTRIBUTION OF BENTHIC MACROINVERTEBRATES ALONG THE VUVU RIVER, SOUTH AFRICA." In WATER RESOURCES MANAGEMENT 2017. Southampton UK: WIT Press, 2017. http://dx.doi.org/10.2495/wrm170051.

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Park, S. H., D. H. Kim, W. S. Cho, M. Bae, Y. S. Park, Y. E. Na, and T. S. Chon. "Community patterns of benthic macroinvertebrates in streams in relation to temperature variation using the Self-Organizing Map." In ECOSUD 2011. Southampton, UK: WIT Press, 2011. http://dx.doi.org/10.2495/eco110411.

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Montenegro, Jordan, and Shafiul Chowdhury. "WATER QUALITY ASSESSMENT OF THE HUDSON VALLEY FARM HUB DRAINAGE SYSTEM IN HURLEY, NEW YORK USING BENTHIC MACROINVERTEBRATES." In GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-354171.

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Aberhan, Martin, Veronica Piazza, and Luís V. Duarte. "DECLINES IN THE BODY SIZE OF BENTHIC MACROINVERTEBRATES AS A HARBINGER OF THE EARLY TOARCIAN (EARLY JURASSIC) EXTINCTION EVENT IN THE LUSITANIAN BASIN, PORTUGAL." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-305138.

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Reports on the topic "Benthic macroinvertebrates"

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Scott, E. M. Jr. Clinch River remedial investigation task 9 -- benthic macroinvertebrates. Office of Scientific and Technical Information (OSTI), August 1994. http://dx.doi.org/10.2172/485965.

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Whicker, A. Seasonal dynamics of benthic macroinvertebrates of Pond B, Savannah River Plant Aiken, South Carolina. Office of Scientific and Technical Information (OSTI), January 1988. http://dx.doi.org/10.2172/5043977.

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Peplow, Dan. Effects of Alder Mine on the Water, Sediments, and Benthic Macroinvertebrates of Alder Creek, 1998 Annual Report. Office of Scientific and Technical Information (OSTI), May 1999. http://dx.doi.org/10.2172/10590.

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Feltmate, B. W. Technical evaluation of determining mining related impacts utilizing benthic macroinvertebrate population level fitness parameters. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1999. http://dx.doi.org/10.4095/306932.

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Tzilkowski, Caleb. Benthic macroinvertebrate monitoring in Eastern Rivers and Mountains Network wadeable streams: 2014–2019 summary report. National Park Service, July 2021. http://dx.doi.org/10.36967/nrr-2286761.

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Relations of benthic macroinvertebrates to concentrations of trace elements in water, streambed sediments, and transplanted bryophytes and stream habitat conditions in nonmining and mining areas of the upper Colorado River basin, Colorado, 1995-98. US Geological Survey, 2002. http://dx.doi.org/10.3133/wri024139.

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Effects of urbanization on benthic macroinvertebrate communities in streams, Anchorage, Alaska. US Geological Survey, 2001. http://dx.doi.org/10.3133/wri014278.

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Water quality and benthic macroinvertebrate bioassessment of Gallinas Creek, San Miguel County, New Mexico, 1987-90. US Geological Survey, 1996. http://dx.doi.org/10.3133/wri964011.

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Water quality, benthic macroinvertebrate, and fish community monitoring in the Lost River sub-basin, Oregon and California, 1999. US Geological Survey, 2000. http://dx.doi.org/10.3133/70182268.

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Benthic macroinvertebrate assemblages and their relations with environmental variables in the Sacramento and San Joaquin River drainages, California, 1993-1997. US Geological Survey, 2000. http://dx.doi.org/10.3133/wri004125.

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