176 research outputs found

    Bull trout conservation and recovery in the Odell Lake core area: distribution, behavior, ecology, and fisheries evaluations (2013-2014)

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    Michael H. Meeuwig, Steve J. Starcevich, Elizabeth J. Bailey, Shaun P. Clements, and Joshua L. McCormick.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 63-68).Funding for this project was provided in part by USFWS (F14AF01131 and F13AF01080).Mode of access: Internet from the Oregon Government Publications Collection.Text in English

    Use of depletion electrofishing and a generalized random-tessellation stratified design to estimate density and abundance of redband trout in the northern Great Basin

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    Michael H. Meeuwig and Shaun P. Clements.This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (pages 30-32).Mode of access: Internet from the Oregon Government Publications Collection.Text in English

    Implications for monitoring design and population persistence in dynamic stream environments

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    Fisheries management and conservation strategies often rely on an understanding of the abundance of target species. However, providing precise estimates of abundance for species or populations can require a considerable amount of effort in terms of time, or personnel, or both. During protracted sampling events, fish may be moving throughout the target study system, and if these movements are non-random they may bias abundance estimates when not accounted for by sample design. The objective of this study was to evaluate whether spatio-temporal variability in fish distribution and density of redband trout in Rock Creek, Oregon, may bias population-level abundance estimates. Specific emphasis was placed on spatio-temporal variability in distribution and density associated with stream drying. We estimated that the wetted habitat available to redband trout in Rock Creek decreased substantially from 3 June to 2 September 2015. During this time period, we sampled a total of 620 redband trout and uniquely tagged 481 redband trout. We observed movement of six tagged redband trout among samples sites (i.e., 100-m stream reaches) during the study; four fish were recaptured about 0.1 km from their original capture location, one fish was recaptured about 0.2 km from its original capture location, and one fish was recaptured about 1.8 km from its original capture location. Additionally, we did not observe any redband trout among 22 sample sites in the lower 13.1 km of Rock Creek that were sampled prior to desiccation in 2015; despite the fact that redband trout have been observed in this area during previous surveys conducted from 2007 - 2012. Over the sample period we estimated that redband trout abundance decreased from a high of 1,487 individuals to a low of 665 individual. These estimates represent about a 90% decrease in population abundance compared to previous surveys (i.e., surveys conducted from 2007 - 2012); although there were some differences in sampling methodology. Combined, these data suggest that redband trout in Rock Creek are generally not redistributing in response to stream drying, but are likely becoming stranded and die as stream habitats fragment and dry. Additionally, the number of successive years of drought or near-drought conditions, and not just the magnitude of drought in any one year, may contribute the ability to redband trout to recolonize previously dry habitats and may greatly influence the abundance of redband trout. Finally, understanding patterns of stream drying may aid in identifying drought-resistant refuge habitats that warrant special protection.Michael H. Meeuwig and Shaun P. Clements (Oregon Department of Fish and Wildlife - Native Fish Investigations Program).This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references (page 13).Mode of access: Internet from the Oregon Government Publications Collection.Text in English

    The effect of a trapping procedure on the stress response of wild rainbow trout

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    Fish traps are a common research and management tool in which fish are subjected to procedures that elicit a stress response in other contexts. The effects of trapping on the stress response of sexually mature, wild rainbow trout Oncorhynchus mykiss were investigated during their upstream spawning migration by measuring concentrations of plasma cortisol, lactate, and glucose. Males had significantly lower basal plasma cortisol concentrations (6.1 ± 0.8 ng/mL [mean ± SE]) than females (21.4 ± 5.9 ng/mL). Similarly, the plasma cortisol response in males was significantly lower than that in females for all experiments. Fish working the barrier before entering the trap had increased concentrations of plasma cortisol. Confinement in the trap also induced a stress response. Plasma cortisol concentrations increased to 185.1 ± 40.9 ng/mL in males and 549.1 ± 60.1 ng/mL in females after confinement for 1 h. After processing, the magnitude of the stress response and the relative duration of recovery was less in fish that were confined longer in the trap. However, resting cortisol concentrations in females were not reached after 40 h of recovery in either group. Recovery to resting concentrations of plasma lactate occurred within 15 h after processing. In contrast, concentrations of plasma glucose remained significantly elevated at 40 h after processing. Postspawning fish had significantly lower plasma concentrations of cortisol, glucose, and lactate following application of an extreme stressor compared with prespawning fish. Based on the results of this study, we conclude that the trapping procedure induces a severe and prolonged stress response in wild rainbow trout

    Shaun of the Dead and the Construction of Cult Space in Millennial London

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    Chapter 14 examines the representation of contemporary London in the British film Shaun of the Dead (2004). By focussing on two sequences in the film depicting short walks taken by the main protagonist, Shaun (Simon Pegg), from the front door of his shared, rented, Victorian north-London terraced house to a local shop, Newland argues that this film very effectively represents changes that have occurred to the socio-cultural fabric of non-central, ‘undistinctive’ parts of the city. By drawing on spatial theory and the insights of cultural geography, the author argues that the ‘zombie’ aspect of the narrative allows the filmmakers to explore, in a light-hearted way, the development of this richly historical, inner-suburban zone of the city into a highly complex, liminal space of stasis and transition; ennui and enterprise, which becomes evocative—in spatial terms—of the wider socio-cultural malaise of millennial London. Drawing on fan studies and work on cult films Newland further argues that the film facilitates the constriction of ‘cult space’, not least through its encouragement of fan pilgrimages

    RPDF 3.3: A Presentation on the Geopolitics of Cyberspace

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    “The Geopolitics of Cyberspace: A Diplomatic Perspective” explores whether there is a geopolitics of cyberspace, how this might impact on the behaviour of state and non-state actors, and the implications for a diplomacy of cyberspace. In these supplementary materials author Shaun Riordan sets out the key points, in particular the application of geopolitics and critical geopolitics to cyberspace, how these analytical tools can help better understand the behaviour of key state and non-state actors and the implications for diplomacy and foreign policy.</p

    Spattered with Words: a stylistic toolkit accounting for the 'theatricality' behind the playwright/screenwriter's use of real and improvised language in creating drama texts.

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    This thesis documents investigations into the success (or not) of real, spontaneous dialogue when applied to the creation of a script for dramatic performance. The accounting for such success delves into different theoretical frameworks: conversation theory, stylistics, Cognitive Poetics, narratology, and extended cognition. This is therefore an interdisciplinary perspective, with ideas emerging from the fields of psychology, philosophy, literary stylistics and linguistics; yet all applied within the context of drama and performance. As such, this thesis may be seen as a playwright's 'toolbox' where the different views, as they necessarily overlap, can be seen as elements, which, when taken together, account for (and help in) the decisions an author may make in creating a text out of improvised speech. The investigation is also a search for the notion of 'theatricality' in the context of authentic speech and uses various forms of theatrical performance as examples, ranging from amateur improvisation to TV and film productions, Commedia dell'Arte to modern, immersive theatre. Finally, application of the theoretical frameworks is made to a current theatre project, The Plant

    Associations of UPPS-P negative urgency and positive urgency with ADHD dimensions: Moderation by lack of premeditation and lack of perseverance in men and women

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    The study examined how dimensions of Whiteside and Lynam's (2003) UPPS-P model of impulsivity (lack of premeditation, lack of perseverance, negative urgency, and positive urgency) were associated directly and interactively with the attention-deficit/hyperactivity disorder (ADHD) dimensions of inattention and hyperactivity/impulsivity in men and women separately. A total of 550 adults (men = 147, women = 403), ages ranging from 18 to 65 years, from the general community completed questionnaires covering the study variables. For women, there was support for the additive model for the prediction of inattention, and both inattention and hyperactivity/impulsivity were predicted by lack of premeditation × positive urgency. For men, inattention was predicted by lack of premeditation × negative urgency, and lack of premeditation × positive urgency. In all instances, low levels of premeditation reduced the relationships between the urgency dimensions and ADHD dimensions. The theoretical and clinical implications of the findings are discussed. © 2023 The Author(s

    Semisimple characters for p-adic classical groups

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    Let G be a unitary, symplectic, or orthogonal group over a non-Archimedean local field of residual characteristic different from 2, considered as the fixed-point subgroup in a general linear group of an involution. Following previous work of Bushnell and Kutzko, and of the author, we generalize the notion of a semisimple character for and for G. In particular, following the formalism of Bushnell and Henniart, we show that these semisimple characters have certain functorial properties. Finally, we show that any positive level supercuspidal representation of G contains a semisimple character
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