Seasonal variation in the feeding ecology of Channel Catfish Ictalurus punctatus and Blue Catfish Ictalurus furcatus in Ohio reservoirs

The introduction of novel species into aquatic ecosystems can threaten native taxa through numerous mechanisms, such as interspecific competition. Generalist species are particularly dangerous due to their breadth of resource-use, especially if their ecological nice overlaps with other resident species. Toward understanding the impact of the Blue Catfish (Ictalurus punctatus), a stocked, non-native generalist consumer, on Channel Catfish (Ictalurus furcatus), an ecologically similar congener, we analyzed the stomach contents of Blue Catfish (n = 148) and Channel Catfish (n = 296) collected during multiple seasons in Hoover Reservoir (where Blue Catfish is stocked) and Alum Creek Lake (where Blue Catfish is absent). Stomach content analyses revealed that Channel Catfish diets are more diverse than Blue Catfish in both sympatry and allopatry. Channel Catfish diets consisted of aquatic and terrestrial invertebrates and plant material in Channel Catfish, with prey-fish such as Gizzard Shad (Dorosoma cepedianum) being also found in larger individuals. By contrast, chironomids and Gizzard Shad dominated the diets of Blue Catfish. Channel Catfish total consumption and mass per unit of length also were lower in sympatry (Hoover) than in allopatry (Alum Creek), suggesting the potential for interspecific competition for prey resources. While more investigation is needed to determine if interspecific competition is truly occurring, our findings provide valuable information for managers and ecologists interested in understanding the potential consequences of introduced non-native generalist consumers on native species.Ohio Department of Natural Resources - Division of WildlifeNo embargoAcademic Major: Evolution and Ecolog

Scoping review and descriptive thematic analysis

Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.This study aims to synthesize the literature on any disproportionate health risks or consequences of a COVID-19 infection for people with disabilities. Scoping review with a descriptive thematic analysis was carried out. Up to mid-September 2020, seven scientific databases and three preprint servers were searched to identify empirical or perspective papers. Snowballing searches and expert’ consultations also took place. Two independent reviewers were used for the screenings and data extractions. Of 1027 references, 58 were included, 15 of which were empirical articles. The thematic analysis showed that: (1) People with disabilities living in residential or long-term care facilities were more likely to have greater infection rates; (2) Intersecting mediators of greater infection risks were multiple (e.g., lack of accessible information); (3) People with disabilities often face greater health problems when infected; and (4) Unethical disadvantages in the rationing of lifesaving and critical care can be experienced by people with disabilities. Conclusions: Beyond any health-related vulnerabilities (e.g., comorbidity rates), multiple yet modifiable environmental factors can provide disproportionate health risks and consequences of a COVID-19 infection for people with disabilities. Public health and policy measures must prevent or reduce modifiable environmental risks.publishersversionpublishe

Pressure Ulcer Prevention: A Quality Improvement Project

A pressure ulcer is an injury that affects the underlying tissue and skin and is primarily caused by prolonged pressure on the skin. During a clinical rotation at a small rural teaching hospital, pressure ulcers were prevalent in an estimated 80% of patients in the intensive care unit (ICU) during a three-week period. Approximately $26.8 billion are spent every year in the United States treating pressure ulcers. The purpose of this quality improvement project is to provide staff education to ICU nurses in order to reduce and prevent the prevalence of pressure ulcers in patients. A thorough literature review was completed on 64 studies related to pressure ulcers that focused on causes, effects, costs, education, treatments, and preventative measures. An educational tool was developed that outlines interventions that targeted pressure ulcer prevention.https://scholarworks.moreheadstate.edu/celebration_posters_2022/1011/thumbnail.jp

Using Maximal Isometric Force to Determine the Optimal Load for Measuring Dynamic Muscle Power

Maximal power output occurs when subjects perform ballistic exercises using loads of ~30-50% of one-repetition maximum (1-RM). However, performing 1-RM testing prior to power measurement requires considerable time, especially when testing involves multiple exercises. Maximal isometric force (MIF), which requires substantially less time to measure than 1-RM, might be an acceptable alternative for determining the optimal load for power testing. PURPOSE: To determine the optimal load based on MIF for maximizing dynamic power output during leg press and bench press exercises. METHODS: Twenty healthy volunteers (12 men and 8 women; mean +/- SD age: 31+/-6 y; body mass: 72 +/- 15 kg) performed isometric leg press and bench press movements, during which MIF was measured using force plates. Subsequently, subjects performed ballistic leg press and bench press exercises using loads corresponding to 20%, 30%, 40%, 50%, and 60% of MIF presented in randomized order. Maximal instantaneous power was calculated during the ballistic exercise tests using force plates and position transducers. Repeated-measures ANOVA and Fisher LSD post hoc tests were used to determine the load(s) that elicited maximal power output. RESULTS: For the leg press power test, six subjects were unable to be tested at 20% and 30% MIF because these loads were less than the lightest possible load (i.e., the weight of the unloaded leg press sled assembly [31.4 kg]). For the bench press power test, five subjects were unable to be tested at 20% MIF because these loads were less than the weight of the unloaded aluminum bar (i.e., 11.4 kg). Therefore, these loads were excluded from analysis. A trend (p = 0.07) for a main effect of load existed for the leg press exercise, indicating that the 40% MIF load tended to elicit greater power output than the 60% MIF load (effect size = 0.38). A significant (p . 0.05) main effect of load existed for the bench press exercise; post hoc analysis indicated that the effect of load on power output was: 30% > 40% > 50% = 60%. CONCLUSION: Loads of 40% and 30% of MIF elicit maximal power output during dynamic leg presses and bench presses, respectively. These findings are similar to those obtained when loading is based on 1-RM

Combining Ecosystem and Single-Species Modeling to Provide Ecosystem-Based Fisheries Management Advice Within Current Management Systems.

Although many countries have formally committed to Ecosystem-Based Fisheries Management (EBFM), actual progress toward these goals has been slow. This paper presents two independent case studies that have combined strategic advice from ecosystem modeling with the tactical advice of single-species assessment models to provide practical ecosystem-based management advice. With this approach, stock status, reference points, and initial target F are computed from a single-species model, then an ecosystem model rescales the target F according to ecosystem indicators without crossing pre-calculated single-species precautionary limits. Finally, the single-species model computes the quota advice from the rescaled target F, termed here Feco. Such a methodology incorporates both the detailed population reconstructions of the single-species model and the broader ecosystem perspective from ecosystem-based modeling, and fits into existing management schemes. The advocated method has arisen from independent work on EBFM in two international fisheries management systems: (1) Atlantic menhaden in the United States and (2) the multi species fisheries of the Irish Sea, in the Celtic Seas ecoregion. In the Atlantic menhaden example, the objective was to develop ecological reference points (ERPs) that account for the effect of menhaden harvest on predator populations and the tradeoffs associated with forage fish management. In the Irish Sea, the objective was to account for ecosystem variability when setting quotas for the individual target species. These two exercises were aimed at different management needs, but both arrived at a process of adjusting the target F used within the current single-species management. Although the approach has limitations, it represents a practical step toward EBFM, which can be adapted to a range of ecosystem objectives and applied within current management systems.publishedVersio

Suggesting global insights to local challenges: expanding financing of rehabilitation services in low and middle-income countries

PurposeFollowing the rapid transition to non-communicable diseases, increases in injury, and subsequent disability, the world—especially low and middle-income countries (LMICs)—remains ill-equipped for increased demand for rehabilitative services and assistive technology. This scoping review explores rehabilitation financing models used throughout the world and identifies “state of the art” rehabilitation financing strategies to identify opportunities and challenges to expand financing of rehabilitation.Material and methodsWe searched peer-reviewed and grey literature for articles containing information on rehabilitation financing in both LMICs and high-income countries.ResultsForty-two articles were included, highlighting various rehabilitation financing mechanism which involves user fees and other innovative payment as bundled or pooled schemes. Few studies explore policy options to increase investment in the supply of services.Conclusionthis paper highlights opportunities to expand rehabilitation services, namely through promotion of private investment, improvement in provider reimbursement mechanism as well as expanding educational grants to bolster labor supply incentive, and the investment in public and private insurance schemes. Mechanisms of reimbursement are frequently based on global budget and salary which are helpful to control cost escalation but represent important barriers to expand supply and quality of services

Disability Characteristics of Community-Based Rehabilitation Participants in Kayunga District, Uganda

Background: Approximately 80% of individuals with disability reside in low- and middle-income countries where community-based rehabilitation (CBR) has been used as a strategy to improve disability. However, data relating to disability severity among CBR beneficiaries in low-income countries like Uganda remain scarce, particularly at the community or district level. Objectives: To describe severity of disability and associated factors for persons with physical disabilities receiving CBR services in the Kayunga district of Uganda. Methods: A cross-sectional sample of 293 adults with physical disabilities receiving a CBR service in the Kayunga district was recruited. Disability severity was measured using the 12-item World Health Organization Disability Assessment Schedule 2.0 (WHODAS2.0), and analyzed as a binary outcome (low: 0-9, high: 10-48). Inferential statistics using odds ratios were used to determine factors associated with impairment severity. Findings: The mean WHODAS 2.0 score of persons with physical disabilities was 12.7 (standard deviation = 8.3). More than half (52.90%) of people with physical disabilities reported a high level of functional impairment. Increased disability severity was significantly associated with limited access to assistive devices (adjusted odds ratio [AOR] = 4.55, 95% confidence interval [CI]: 1.87-14.08, 'P' 'These findings suggest a high level of moderate to severe functional impairments in persons with physical disabilities receiving CBR in Kayunga district. These data provide support for efforts to enhance CBR's ability to liaise with local health care, education, and community resources to promote access to needed services and ultimately improve the functional status of persons with disabilities in low-resource settings

Ten lessons on the resilience of the EU common fisheries policy towards climate change and fuel efficiency - A call for adaptive, flexible and wellinformed fisheries management

To effectively future-proof the management of the European Union fishing fleets we have explored a suite of case studies encompassing the northeast and tropical Atlantic, the Mediterranean, Baltic and Black Seas. This study shows that European Union (EU) fisheries are likely resilient to climate-driven short-term stresses, but may be negatively impacted by long-term trends in climate change. However, fisheries’ long-term stock resilience can be improved (and therefore be more resilient to increasing changes in climate) by adopting robust and adaptive fisheries management, provided such measures are based on sound scientific advice which includes uncertainty. Such management requires regular updates of biological reference points. Such updates will delineate safe biological limits for exploitation, providing both high long-term yields with reduced risk of stock collapse when affected by short-term stresses, and enhanced compliance with advice to avoid higher than intended fishing mortality. However, high resilience of the exploited ecosystem does not necessarily lead to the resilience of the economy of EU fisheries from suffering shocks associated with reduced yields, neither to a reduced carbon footprint if fuel use increases from lower stock abundances. Fuel consumption is impacted by stock development, but also by changes in vessel and gear technologies, as well as fishing techniques. In this respect, energy-efficient fishing technologies already exist within the EU, though implementing them would require improving the uptake of innovations and demonstrating to stakeholders the potential for both reduced fuel costs and increased catch rates. A transition towards reducing fuel consumption and costs would need to be supported by the setup of EU regulatory instruments. Overall, to effectively manage EU fisheries within a changing climate, flexible, adaptive, well-informed and well-enforced management is needed, with incentives provided for innovations and ocean literacy to cope with the changing conditions, while also reducing the dependency of the capture fishing industry on fossil fuels. To support such management, we provide 10 lessons to characterize ‘win-win’ fishing strategies for the European Union, which develop leverages in which fishing effort deployed corresponds to Maximum Sustainable Yield targets and Common Fisheries Policy minimal effects objectives. In these strategies, higher catch is obtained in the long run, less fuel is spent to attain the catch, and the fisheries have a higher resistance and resilience to shock and long-term factors to face climate-induced stressesEn prens

Refining fisheries advice with stock-specific ecosystem information

Although frequently suggested as a goal for ecosystem-based fisheries management, incorporating ecosystem information into fisheries stock assessments has proven challenging. The uncertainty of input data, coupled with the structural uncertainty of complex multi-species models, currently makes the use of absolute values from such models contentious for short-term single-species fisheries management advice. Here, we propose a different approach where the standard assessment methodologies can be enhanced using ecosystem model derived information. Using a case study of the Irish Sea, we illustrate how stock-specific ecosystem indicators can be used to set an ecosystem-based fishing mortality reference point (FECO) within the “Pretty Good Yield” ranges for fishing mortality which form the present precautionary approach adopted in Europe by the International Council for the Exploration of the Sea (ICES). We propose that this new target, FECO, can be used to scale fishing mortality down when the ecosystem conditions for the stock are poor and up when conditions are good. This approach provides a streamlined quantitative way of incorporating ecosystem information into catch advice and provides an opportunity to operationalize ecosystem models and empirical indicators, while retaining the integrity of current assessment models and the FMSY-based advice process.publishedVersio