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Dissertations / Theses on the topic 'Broken River'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 January 2023

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1

Price, Amina, and n/a. "Utilisation of Still-Water Patches by Fish and Shrimp in a Lowland River, With Particular Emphasis on Early-Life Stages." University of Canberra. Applied Science, 2007. http://erl.canberra.edu.au./public/adt-AUC20081202.090600.

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In lowland river systems, in-channel, slow-flowing or still-water areas (still-water patches, SWPs) are considered to be important habitats for many organisms, particularly the early-life stages of fish and shrimp. However, the distribution of the early life-stages of fish and shrimp among these habitats appears to be very patchy and studies suggest that the quality and diversity of microhabitat conditions within SWPs and the accessibility of SWPs to spawning adults and dispersing young may be important determinants of their suitability as nursery habitat. The aims of this thesis were to exami

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2

Kapoutsos, David. "Provenance changes and glauconite formation in the Broken River to Iron Creek/Waipara Greensand Formations marks the late Cretaceous-Eocene transgression." Thesis, University of Canterbury. Department of Geology, 2005. http://hdl.handle.net/10092/3181.

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Detailed provenance analysis and glauconite morphology of the Broken River and Iron CreeklWaipara Formations and other correlatives were conducted at 6 localities: the MandamusDove River area, Waipara River, Avoca-Iron Creek, Castle Hill Basin, Malvern and Mt Somers. The basal Broken River Formation is a fluvial boulder conglomerate interbedded with sandstones, mudstones and coal dated as Haumurian (Late Cretaceous) by pollen. The transgression is marked by a gradual drowning of the fluvial conglomerates with minor glauconite appearing in the beds immediately overlying the conglomerates in all

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3

Cramb, Jonathan Andrew. "Taxonomy and palaeoecology of Quaternary faunas from caves in eastern tropical Queensland : a record of broad-scale environmental change." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/59971/1/Jonathan_Cramb_Thesis.pdf.

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Analysis of fossils from cave deposits at Mount Etna (eastern-central Queensland) has established that a species-rich rainforest palaeoenvironment existed in that area during the middle Pleistocene. This unexpected finding has implications for several fields (e.g., biogeography/phylogeography of rainforest-adapted taxa, and the impact of climate change on rainforest communities), but it was unknown whether the Mount Etna sites represented a small refugial patch of rainforest or was more widespread. In this study numerous bone deposits in caves in north-east Queensland are analysed to recons

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4

O'Neal, Sarah Louise. "Lessons to learn from all out invasion life history of brown trout (Salmo trutta) in a Patagonian river /." Diss., [Missoula, Mont.] : The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-05142008-142539/.

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5

Kristensen, Esben Astrup, and n/a. "Population dynamics, spawning and movement of brown trout in Taieri River tributary streams." University of Otago. Department of Zoology, 2007. http://adt.otago.ac.nz./public/adt-NZDU20070314.091924.

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The aim of this study was to investigate population densities and dynamics of brown trout along multiple tributaries of the Taieri River, a large New Zealand river. Relationships between juvenile brown trout population dynamics and food availability, discharge and water temperature were examined in the same lowland stream. Downstream movements of juvenile brown trout were also examined. Trace element analyses of eggs aimed to identify the source of fish spawning in tributary streams. An experimental study of juvenile brown trout collected from downstream and upstream reaches compared patterns

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6

Higgins, David Ian. "Catchment scale influences on brown trout fry populations in the Upper Ure catchment, North Yorkshire." Thesis, Durham University, 2011. http://etheses.dur.ac.uk/3571/.

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A multi-scale approach for restoration site selection is presented and applied to an upland catchment, the River Ure, North Yorkshire. Traditional survey methods, advances in remote sensing, Geographical Information Systems (GIS) and risk-based fine sediment modelling using the SCIMAP module are combined to gather data at the catchment-scale through to the in-stream habitat-scale. The data gathered have been assessed against spatially distributed brown trout fry populations using Pearson’s correlation and multiple stepwise regressions. Fine sediment was shown to have a positive correlation wit

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7

Louhi, P. (Pauliina). "Responses of brown trout and benthic invertebrates to catchment-scale disturbance and in-stream restoration measures in boreal river systems." Doctoral thesis, University of Oulu, 2010. http://urn.fi/urn:isbn:9789514263217.

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Abstract Maintaining connectivity in boreal streams by rehabilitation procedures is a challenging task that requires ecological understanding based on empirical research. In this thesis, I examined the effects of stream rehabilitation on densities and growth of brown trout (Salmo trutta L.), as well as on benthic biodiversity. As streams are known to be closely connected to their watersheds, I also examined the effects of watershed drainage activities on stream organisms. The results of this thesis have implications for enhancing salmonid populations, as well for maintaining stream biodiversi

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8

Judice, Taylor J. "Detecting Color-Producing Pigments in the Indian River Lagoon by Remote Sensing." Kent State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=kent1566402904063089.

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9

Hansbarger, Jeff Lee. "Trout movement and habitat use in the upper Shavers Fork of the Cheat River, West Virginia." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4070.

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Thesis (M.S.)--West Virginia University, 2005.<br>Title from document title page. Document formatted into pages; contains xi, 155 : ill., maps (some col.). Includes abstract. Includes bibliographical references (p. 80-91).

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10

Olson, Michael. "Downstream migration of brown trout (Salmo trutta) smolts past hydropowerplants in the river Emån." Thesis, Karlstad University, Division for Environmental Sciences, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-21.

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<p>The passage efficiency of downstream migrating brown trout (Salmo trutta) smolts past two hydropower plants in the River Emån, southeastern Sweden, was evaluated by telemetry. From 26 April to 17 May 2005, 40 wild brown trout smolts were radio-tagged, and their positions were recorded daily until 14 June. Approximately 45% of the individuals passed both power plants, and 15% made it to the sea, some 28 km downstream of the power plants. About 20% of the individuals ceased migrating, residing in a lotic habitat. Mortality due to predation was 33%, and the predation rate was higher in the pow

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11

Rivinoja, Peter. "Migration problems of Atlantic salmon (Salmo salar L.) in flow regulated rivers /." Umeå : Dept. of Aquaculture, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/2005114.pdf.

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12

Wood, Jeremiah. "An Investigation Of The Early Life-History Of Brown Trout (Salmo Trutta) And Potential Influnces on Invasion Success in the Logan River, Utah." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/131.

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Due to the significant threats posed by nonnative fish species worldwide, it is important to understand how life-history strategies of individual species interact with environmental conditions to explain the success or failure of nonnative fish invasions. Brown trout are prolific invaders, but often exhibit upstream distributional limits in Intermountain West streams, potentially due to a maladaptive reproductive life-history strategy influenced by hydrologic conditions in high-elevation areas. We used redd counts, egg survival experiments, and temperature modeling to investigate the reproduct

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13

Paredes, Paredes Pedro Fernandes Pedro Fernandes. "Marvila. Transversabilidades ribeirinhas." Master's thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2011. http://hdl.handle.net/10400.5/6744.

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14

Gosselin, Marie-Pierre. "Aquatic habitat characterization and use in groundwater versus surface runoff influenced streams : brown trout (Salmo trutta) and bullhead (Cottus gobio)." Thesis, Coventry University, 2009. http://curve.coventry.ac.uk/open/items/8d69e5ee-5c54-1d43-2390-e9bea23aad35/1.

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Riverine physical habitats and habitat utilization by fish have often been studied independently. Varying flows modify habitat composition and connectivity within a stream but its influence on habitat use is not well understood. This study examined brown trout (Salmo trutta) and bullhead (Cottus gobio) utilization of physical habitats that vary with flow in terms of size and type, persistence or duration, and frequency of change from one state to another, by comparing groundwater-dominated sites on the River Tern (Shropshire) with surface runoff-dominated lowland, riffle-pool sites on the Dowl

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15

Koljonen, S. (Saija). "Ecological impacts of in-stream restoration in salmonid rivers:the role of enhanced structural complexity." Doctoral thesis, Oulun yliopisto, 2011. http://urn.fi/urn:isbn:9789514295690.

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Abstract Despite the great amount of in-stream restorations conducted in the past decades there is still a disturbing lack of knowledge about the outcome of these measures. The overall goal of this study was to assess the effect of enhanced streambed heterogeneity on the ecology of stream salmonids and stream retention efficiency. Substratum heterogeneity is often considered as one of the most important limiting factors for organisms living in running waters. Winter ecology of rivers has not been broadly studied regardless of the general belief that wintertime conditions strongly influence the

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16

Tissier, Marion. "Etude numérique de la transformation des vagues en zone littorale, de la zone de levée aux zones de surf et de jet de rive." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14437/document.

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Dans cette thèse, nous introduisons un nouveau modèle instationnaire de vagues valable de la zone de levée à la zone de jet de rive adapté à l'étude de la submersion. Le modèle est basé sur les équations de Serre Green-Naghdi (S-GN), dont l'application à la zone de surf reste un domaine de recherche ouvert. Nous proposons une nouvelle approche pour gérer le déferlement dans ce type de modèle, basée sur la représentation des fronts déferlés par des chocs. Cette approche a été utilisée avec succès pour les modèles basés sur les équations de Saint-Venant (SV) et permet une description simple et e

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17

Bergmann, Nicolas Timothy. "Preserving Nature through Film: Wilderness Alps of Stehekin and the North Cascades, 1956-1968." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/973.

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On March 22, 1958 David Brower's film Wilderness Alps of Stehekin premiered to an audience of conservationists in Seattle, Washington. Almost two years in the making, the thirty-one minute film advocated the preservation of nature in Washington's North Cascades through the creation of a national park. Over the next decade, Wilderness Alps of Stehekin became the most influential publicity tool in the struggle to preserve the North Cascades. Because of the region's geographic isolation, the film was the first time many people throughout the nation were exposed to the scenic grandeur of the area.

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18

Preston, Andrew C. "Research and development of triploid brown trout Salmo trutta (Linnaeus, 1758) for use in aquaculture and fisheries management." Thesis, University of Stirling, 2014. http://hdl.handle.net/1893/21647.

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Freshwater sport fisheries contribute substantially to the economies of England and Wales. However, many trout fisheries rely partly or entirely on stocking farmed trout to maintain catches within freshwater fisheries. Farmed trout often differ genetically from their wild counterparts and wild trout could be at risk of reduced fitness due to interbreeding or competition with farmed fish. Therefore, to protect remaining wild brown trout (Salmo trutta L) populations and as a conservation measure, stocking policy has changed. Legislation introduced by the Environment Agency (EA, 2009) will now on

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19

Averill, Annalaura. "Brown-headed cowbird parasitism of neotropical migratory songbirds in riparian areas along the lower Colorado river." 1996. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1996_452_sip1_w.pdf&type=application/pdf.

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