Journal of Contemporary Water Research & Education最新文献_第4页

Prevalence and Distribution of Microplastics in Oysters from the Mississippi Sound 密西西比湾牡蛎中微塑料的流行和分布

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2023-04-26 DOI: 10.1111/j.1936-704X.2022.3379.x

Kendall Wontor, James V. Cizdziel, Austin Scircle, Deborah J. Gochfeld, Ann Fairly Pandelides

{"title":"Prevalence and Distribution of Microplastics in Oysters from the Mississippi Sound","authors":"Kendall Wontor, James V. Cizdziel, Austin Scircle, Deborah J. Gochfeld, Ann Fairly Pandelides","doi":"10.1111/j.1936-704X.2022.3379.x","DOIUrl":"10.1111/j.1936-704X.2022.3379.x","url":null,"abstract":"<div>\u0000 \u0000 <p>Oysters are a foundational part of their ecosystem and research has shown they are negatively impacted by exposure to microplastics (MPs). High MP levels have been documented in waters surrounding oyster reefs, and as filter feeders, oysters can ingest MPs along with their food. Here, we determined MPs (>30 µm) in oysters (<i>Crassostrea virginica</i>) from ten sites across the Mississippi Gulf Coast. Further, a subset of these samples was dissected to quantify MPs within specific tissues. Average concentrations ranged from 30.7± 11.5 to 4.7 ± 0.25 putative MPs/g wet weight (ww) of whole tissue, with sites inside bays near population centers displaying higher levels of MPs than those exposed directly to the Gulf. Mantle, gill, and adductor muscle tissues had similar concentrations of putative MPs (15.9 ± 13.4, 11.5 ± 8.6 and 12.8 ± 6.7 MPs/g, respectively), whereas digestive system tissues had lower concentrations (6.8 ± 6.1 MPs/g of tissue). This suggests that most MPs in an oyster likely adhere to external tissues and are not actually ingested. Most of the MPs retained were in the smallest size fraction of 30-90 µm (80%), followed by 125-250 µm (9%), 90-125 µm (8%), and >250 µm (3%). Analysis of samples from Biloxi Bay by µ-FTIR to assess MP composition shows that polyurethane, polyethylene, and polyamide are common, but additional analyses are needed to fully characterize the MP profile across sites. Overall, this work provides much-needed empirical data on the abundances and sizes of MPs in oysters from the Mississippi Sound, as well as the tissues where they reside.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":"177 1","pages":"31-45"},"PeriodicalIF":0.7,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1936-704X.2022.3379.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48349069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Informing Volunteer Water Quality Monitoring Program Design and Watershed Planning: Case Study of StreamSmart Data Analysis in the Upper White River Basin, Arkansas 告知志愿者水质监测项目设计和流域规划:阿肯色州上白河流域的StreamSmart数据分析案例研究

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2023-04-26 DOI: 10.1111/j.1936-704X.2022.3380.x

Erin Grantz, Brian E. Haggard, BENG 4973/5973

{"title":"Informing Volunteer Water Quality Monitoring Program Design and Watershed Planning: Case Study of StreamSmart Data Analysis in the Upper White River Basin, Arkansas","authors":"Erin Grantz, Brian E. Haggard, BENG 4973/5973","doi":"10.1111/j.1936-704X.2022.3380.x","DOIUrl":"10.1111/j.1936-704X.2022.3380.x","url":null,"abstract":"<div>\u0000 \u0000 <p>The watershed group H<sub>2</sub>Ozarks founded the StreamSmart Citizen Science Program to establish baseline and long-term water quality data for the Upper White River Basin, Arkansas. StreamSmart volunteers collect water samples and conduct habitat and macroinvertebrate community assessments at >20 sites across a land use-land cover (LULC) gradient. Since 2020, H<sub>2</sub>Ozarks has adaptively assessed the program to ensure that the investment in water quality data meets core goals, with particular interest in planning tools and aligning expectations of volunteer effort with the level of training and support. Study objectives were to use StreamSmart data to 1) facilitate understanding of water quality response to stressors in the basin using a range of methods (Spearman rank correlation, non-parametric changepoint analysis, and categorical and regression tree analysis) and 2) explore implications for program design and watershed planning. Water chemistry-LULC relationships were in-line with prior regional studies, as well as global patterns. Detected thresholds and hierarchy provide potential targets for managing LULC change to protect water quality, but further analysis is warranted to refine these relationships. Macroinvertebrate stressor-response was most detectable for sensitive and less sensitive taxa and for habitat index components, suggesting potential to streamline these programmatic elements. Study findings for StreamSmart should also be informative for other small-scale volunteer monitoring programs with limited resources, but which actively evaluate the types of data and program activities that yield a maximum scientific return on investment.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":"177 1","pages":"46-62"},"PeriodicalIF":0.7,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1936-704X.2022.3380.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49031009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Letter from the Special Issue Editor 特刊编辑的来信

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2023-04-26 DOI: 10.1111/j.1936-704X.2022.3376.x

Gerald Kauffman, Joseph R. Biden

引用次数: 0

Letter from the Special Issue Editor 特刊编辑的来信

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2023-04-01 DOI: 10.1111/j.1936-704x.2022.3376.x

G. Kauffman, J. Biden

引用次数: 0

Reflections on the Adaptation of a Postgraduate Degree in Water Management from In-person to Remote Delivery 关于水管理研究生学位由面授转为远程授课的思考

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2022-09-10 DOI: 10.1111/j.1936-704X.2022.3372.x

Murray Clamen, Emma Anderson, Johanna Dipple, Jan Adamowski

{"title":"Reflections on the Adaptation of a Postgraduate Degree in Water Management from In-person to Remote Delivery","authors":"Murray Clamen, Emma Anderson, Johanna Dipple, Jan Adamowski","doi":"10.1111/j.1936-704X.2022.3372.x","DOIUrl":"10.1111/j.1936-704X.2022.3372.x","url":null,"abstract":"<div>\u0000 \u0000 <p>In early 2020, the COVID-19 pandemic spurred the rapid adaptation of university course delivery to an online format. Though in-person delivery partially resumed in the Fall of 2021, future conditions may favor a return to, or addition of, remote delivery. It is therefore important for instructors, program directors, and institutions to capitalize on this learning opportunity and reflect on adaptation measures’ successes (and failures) to inform future online course design. The reworking of McGill University's Master of Science Program in Integrated Water Resources Management (IWRM) provides a case study to evaluate the adaptation of remote teaching of water resource management. Informed by the Community of Inquiry (CoI) framework with a focus on preserving transferable skills, a Strengths, Weaknesses, Opportunities, and Threats (SWOT) analysis was used to evaluate the five core program components. This evaluation framework, which can be applied to most university programs, resulted in several widely relevant insights. For example, remote delivery can create opportunities for greater participation of international students as it eliminates the need for translocation costs. Likewise, a larger variety of guest speakers can participate remotely, giving students greater exposure to different water career paths and research perspectives, ultimately strengthening the program. However, several weaknesses pose threats to online learning. The standard in-person lecture-style format must therefore be amended to maintain engagement and facilitate student-to-student and student-to-instructor learning processes. Course components that can enhance the online experience include breakout rooms, discussion boards, frequent journals/feedback forms, online activities, breaks, virtual office hours, and multi-media presentations.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":"176 1","pages":"1-14"},"PeriodicalIF":0.7,"publicationDate":"2022-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1936-704X.2022.3372.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49448307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

South Texas Water Resource Mental Models: A Systems Thinking, Multi-stakeholder Case Study 南德克萨斯州水资源心理模型：系统思维、多方利益相关者案例研究

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2022-09-10 DOI: 10.1111/j.1936-704X.2022.3373.x

Chris Flores-Lopez, Benjamin L. Turner, Roger Hanagriff, Ammar Bhandari, Tushar Sinha

{"title":"South Texas Water Resource Mental Models: A Systems Thinking, Multi-stakeholder Case Study","authors":"Chris Flores-Lopez, Benjamin L. Turner, Roger Hanagriff, Ammar Bhandari, Tushar Sinha","doi":"10.1111/j.1936-704X.2022.3373.x","DOIUrl":"10.1111/j.1936-704X.2022.3373.x","url":null,"abstract":"The Coastal Bend (CB), Lower Rio Grande Valley (LRGV), and Wintergarden (WG) subregions of south Texas co‐exist in similar socio‐economic contexts but rely on markedly different water sources (CB: precipitation; LRGV: surface water; WG: groundwater). This has led to unique agricultural practices and municipal policies and reinforced mental models adapted specifically to each subregion, both of which are critical to understanding structural causes behind current water use and future water sustainability. To better stakeholder mental models in each subregion, semi‐structured interviews were conducted with individuals with a significant stake in water resource use and management. Results indicated near unanimous consensus among farmers and other stakeholders that water supply is limited and will be increasingly stressed under continued urban population growth. Farmers expressed concern that it will become more difficult to continue farming if additional water resources are not available, while each subregion expressed their own unique concerns: growing bureaucratic oversight and growing population problems (CB), lack of inflows, poor water quality, and international disputes with Mexico (LRGV), and political subdivision, declining groundwater levels, and information technology costs (WG). Mental models were synthesized based on dominant themes expressed by respondents; we synthesized these into two systems thinking archetypes: Tragedy of the Commons and Success to the Successful. Though it is unreasonable to create blanket region‐wide policies, the adoption of under‐utilized conservation practices coupled to stakeholder outreach remains unexplored leverage points, given most stakeholders are unaware of the feedback processes continuing to threaten south Texas water resources.","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":"176 1","pages":"15-35"},"PeriodicalIF":0.7,"publicationDate":"2022-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1936-704X.2022.3373.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48421676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Total Maximum Daily Loads and Escherichia coli Trends in Texas Freshwater Streams 德克萨斯州淡水流中的最大日总负荷和大肠杆菌趋势

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2022-09-10 DOI: 10.1111/j.1936-704X.2022.3374.x

Michael Schramm, Anna Gitter, Lucas Gregory

{"title":"Total Maximum Daily Loads and Escherichia coli Trends in Texas Freshwater Streams","authors":"Michael Schramm, Anna Gitter, Lucas Gregory","doi":"10.1111/j.1936-704X.2022.3374.x","DOIUrl":"10.1111/j.1936-704X.2022.3374.x","url":null,"abstract":"<div>\u0000 \u0000 <p>Fecal indicator bacteria are routinely used to assess surface water sanitary quality. The State of Texas uses Total Maximum Daily Loads to address water bodies that exceed the allowable fecal indicator bacteria criteria. The effectiveness of these processes in decreasing the fecal indicator bacteria concentrations has been debated due to the diversity and nature of fecal indicator bacteria sources. We assessed actual and flow-adjusted trends in measured <i>Escherichia coli</i> (<i>E. coli</i>) concentrations at 721 freshwater stream sites from 2001 through 2021. We also compared odds of statistical improvement of <i>E. coli</i> concentrations at sites before and after the adoption of Total Maximum Daily Loads (adopted from 2008 through 2014). Results indicate non-significant differences in the odds of statistically detected improvements in <i>E. coli</i> concentration between pre-Total Maximum Daily Load and post-Total Maximum Daily Load sites. Although the State of Texas and numerous watershed stakeholders have made efforts to address water quality impairments, these results join a body of evidence that water quality improvements are stagnating in the state. Furthermore, this study leverages water quality data used for state water quality standards assessment purposes and highlights that robust monitoring program design is needed to effectively assess the progress of water quality planning efforts.</p></div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":"176 1","pages":"36-49"},"PeriodicalIF":0.7,"publicationDate":"2022-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1936-704X.2022.3374.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44694092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Minimally invasive mitral valve surgery after failed transcatheter mitral valve repair in an intermediate-risk cohort. 中危人群经导管二尖瓣修复失败后的微创二尖瓣手术。

IF 1.6

Journal of Contemporary Water Research & Education Pub Date : 2022-07-09 DOI: 10.1093/icvts/ivac163

Serdar Akansel, Markus Kofler, Karel M Van Praet, Axel Unbehaun, Simon H Sündermann, Stephan Jacobs, Volkmar Falk, Jörg Kempfert

{"title":"Minimally invasive mitral valve surgery after failed transcatheter mitral valve repair in an intermediate-risk cohort.","authors":"Serdar Akansel, Markus Kofler, Karel M Van Praet, Axel Unbehaun, Simon H Sündermann, Stephan Jacobs, Volkmar Falk, Jörg Kempfert","doi":"10.1093/icvts/ivac163","DOIUrl":"10.1093/icvts/ivac163","url":null,"abstract":"<p><strong>Objectives: </strong>Although clinical experience with transcatheter mitral valve interventions is rapidly increasing, there is still a lack of evidence regarding surgical treatment options for the management of recurrent mitral regurgitation (MR). This study provides guidance for a minimally invasive surgical approach following failed transcatheter mitral valve repair, which is based on the underlying mitral valve (MV) pathology and the type of intervention.</p><p><strong>Methods: </strong>A total of 46 patients who underwent minimally invasive MV surgery due to recurrent or residual MR after transcatheter edge-to-edge repair or direct interventional annuloplasty between October 2014 and March 2021 were included.</p><p><strong>Results: </strong>The median age of the patients was 78 [interquartile range, 71-82] years and the EuroSCORE II was 4.41 [interquartile range, 2.66-6.55]. At the index procedure, edge-to-edge repair had been performed in 45 (97.8%) patients and direct annuloplasty in 1 patient. All patients with functional MR at the index procedure (n = 36) underwent MV replacement. Of the patients with degenerative MR (n = 10), 5 patients were eligible for MV repair after removal of the MitraClip. The 1-year survival following surgical treatment was 81.3% and 75.0% in patients with functional and degenerative MR, respectively. No residual MR greater than mild during follow-up was observed in patients who underwent MV repair.</p><p><strong>Conclusions: </strong>Minimally invasive surgery following failed transcatheter mitral valve repair is feasible and safe, with promising midterm survival. The surgical management should be tailored to the underlying valve pathology at the index procedure, the extent of damage of the MV leaflets and the type of previous intervention.</p>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":"153 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2022-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9270869/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85422090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

“I Believe I Can and Should”: Self-efficacy, Normative Beliefs and Conservation Behavior “我相信我可以也应该”：自我效能、规范信念与保护行为

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2022-05-05 DOI: 10.1111/j.1936-704X.2021.3370.x

Amit K. Pradhananga, Mae A. Davenport

{"title":"“I Believe I Can and Should”: Self-efficacy, Normative Beliefs and Conservation Behavior","authors":"Amit K. Pradhananga, Mae A. Davenport","doi":"10.1111/j.1936-704X.2021.3370.x","DOIUrl":"10.1111/j.1936-704X.2021.3370.x","url":null,"abstract":"<div>\u0000 \u0000 <p>This study examines the social-psychological drivers of conservation action among landowners in Minnesota. In particular, we apply an integrated norm activation theory to understand landowner conservation behavior. Data were collected through a self-administered mail survey of 3,000 landowners in La Crescent and Reno Watersheds in Southeastern Minnesota and analyzed using structural equation modeling. Study findings show that landowners' conservation action is driven by their feelings of personal obligation, and beliefs about whether one is capable of taking actions to influence outcomes (i.e., self-efficacy). Landowners who feel a sense of personal obligation and believe that their actions can make a difference are more likely to take conservation actions. Further, landowners who believe it is their personal responsibility to protect water and perceive social expectations are more likely to develop feelings of personal obligation. Importantly, this study highlights the role of self-efficacy as an activator of personal norm, as well as a driver of conservation behavior. Our study suggests that strategies that appeal to landowners' sense of personal responsibility and self-expectations, promote conservation action as a social norm, and build landowners' self-efficacy or confidence in their ability to make a difference, are likely to be successful.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":"175 1","pages":"15-32"},"PeriodicalIF":0.7,"publicationDate":"2022-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1936-704X.2021.3370.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45684102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Understanding the Water Resources of a Mountain-block Aquifer: Tucson Mountains, Arizona 了解山区含水层的水资源:亚利桑那州图森山脉

IF 0.7

Journal of Contemporary Water Research & Education Pub Date : 2022-05-05 DOI: 10.1111/j.1936-704X.2021.3369.x

Christopher J. Eastoe, Kimberly R. Beisner

{"title":"Understanding the Water Resources of a Mountain-block Aquifer: Tucson Mountains, Arizona","authors":"Christopher J. Eastoe, Kimberly R. Beisner","doi":"10.1111/j.1936-704X.2021.3369.x","DOIUrl":"10.1111/j.1936-704X.2021.3369.x","url":null,"abstract":"<div>\u0000 \u0000 <p>Water resources are limited in arid locations such as Tucson Basin. Residential development in the Tucson Mountains to the west of Tucson, Arizona, is limited by groundwater resources. Groundwater samples were collected from fractured bedrock and alluvial aquifers surrounding the Tucson Mountains to assess water quality and recharge history through measurement of stable O, H, and S isotopes; tritium; and <sup>14</sup>C. Most groundwater is a mixture of different ages but is commonly several thousand years old. A few sampling locations indicated a component of water recharged after the above-ground nuclear testing of the mid 1950s, and these sites may represent locations near where the aquifer receives present-day recharge. The Tucson Mountains also host sulfide deposits associated with fractures and replacement zones; these locally contribute to poor-quality groundwater. Projections of future climate predict intensifying drought in southwestern North America. In the study area, a combination of strategies such as rainwater harvesting, exploitation of renewable water, and low groundwater use could be used for sustainable use of the groundwater supply.</p>\u0000 </div>","PeriodicalId":45920,"journal":{"name":"Journal of Contemporary Water Research & Education","volume":"175 1","pages":"1-14"},"PeriodicalIF":0.7,"publicationDate":"2022-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/j.1936-704X.2021.3369.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45544210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0