Journal of Great Lakes Research最新文献

{"title":"Development of a HAND-based flood risk assessment tool in Google Earth Engine for a data-scarce region in the US","authors":"Jobin Thomas ,&nbsp;Subhami Mohan ,&nbsp;Saumik Mallik ,&nbsp;Thomas Oommen ,&nbsp;Pengfei Xue ,&nbsp;Guy Meadows ,&nbsp;Navin Tony Thalakkottukara ,&nbsp;Ryan Williams","doi":"10.1016/j.jglr.2025.102510","DOIUrl":"10.1016/j.jglr.2025.102510","url":null,"abstract":"<div><div>Despite the decreased disaster resilience of rural communities in the Great Lakes region to flooding, flood mitigation efforts have been impeded by inadequate data and lack of appropriate tools for understanding flood risk. Development of such resources often requires data and computationally intensive approaches, which are challenging in data-scarce conditions. This study presents the development of a web application in Google Earth Engine (GEE) for flood risk assessment. The application utilizes the Height Above the Nearest Drainage (HAND) model and synthetic rating curve (SRC) for fluvial flood inundation modeling, the Simulating WAves Nearshore (SWAN) model for coastal flood inundation modeling, the United States Geological Survey (USGS) regional regression equations for estimating peak discharge, and depth-damage functions of the HAZUS-MH flood model for estimating losses due to building-level impacts. The GEE-based geospatial web application, which is operational across five counties in the Western Upper Peninsula (WUP) of Michigan, fulfills the requirement of the community and decision-makers to assess the risks caused by flooding in the region. We demonstrated the applicability of the tool in the Ontonagon River, Michigan, and the results indicate the suitability of the platform for implementing decisions, long-term planning, and understanding flood risk with a reasonable degree of accuracy.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102510"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patterns of geospatial data and imagery use within coastal communities along the Great Lakes of the United States","authors":"Erin L. Bunting,&nbsp;Lucas Rabins,&nbsp;Ethan J. Theuerkauf ,&nbsp;Elizabeth A. Mack","doi":"10.1016/j.jglr.2024.102418","DOIUrl":"10.1016/j.jglr.2024.102418","url":null,"abstract":"<div><div>With expanding technological resources, there has been an increase in both the quantity and quality of coastal data available to researchers and the public. Such quality data, including orthomosaics, digital elevation models, and coastal profiles, are critical to effective coastal management, yet collecting, processing, and analyzing such data represents a barrier for resource-limited communities. Across global landscapes, especially coastal environments, citizen science drone monitoring programs have shown to expand data access. However, differences in understanding may impact capacity for data integration into decision making. This study investigates how capacity to understand and incorporate data into local management practices differs between communities through a survey of decision makers across several Great Lakes communities. The Great Lakes face myriad environmental challenges that threaten the ecological and economic health of the system. Among these are fluctuating lake levels that drive physical changes to the coastline and impact the coupled natural-human system through increased erosion, loss of vegetation, property destruction, and disruption of tourist activities. Exploring the interest and understanding of data use is important given that the Great Lakes account for 20% of the world’s freshwater, over 5,000 miles of U.S. coastline, and have over 52 million people living within the region. Overall, this study found there is an overwhelming agreement among communities’ decision makers that data are important and represent an improvement over current options. However, there were differing patterns of data comprehension when comparing communities. While there was agreement that these data have potential for integration into coastal management if available, in the future it will be important to discern not just the data comprehension and interest but understanding of the preprocessing involved to obtain such data products.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102418"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microcystin persistence in Lake Erie foreshore sands","authors":"Garrett B. Moots,&nbsp;Daryl L. Moorhead,&nbsp;Chelsey E. Suffety,&nbsp;Kayla M. Kinzel,&nbsp;Daryl F. Dwyer,&nbsp;Von Sigler","doi":"10.1016/j.jglr.2025.102601","DOIUrl":"10.1016/j.jglr.2025.102601","url":null,"abstract":"<div><div>Research into the persistence of microcystin (MC) in foreshore sands is limited. Lake water and foreshore sand samples were collected weekly from three swim coves at Maumee Bay Park Beach (OH) during the recreational swim season to assess the accumulation and persistence of MC in foreshore sands. Enzyme-linked-immunosorbent-assay (ELISA) analysis showed that 14 % of lake water samples exceeded the EPA no-contact threshold for MC in recreational waters (8 µg/L), with a maximum concentration of 17 µg/L occurring during a bloom event. Average MC concentrations in surface foreshore sands (4 µg/L porewater) were significantly higher, on average, than in deeper sands (2 µg/L porewater), while peak sand MC concentrations exceeded 29 µg/L during two bloom events. Overall, MC concentrations in both shallow and deep sand exceeded water MC concentrations in 56 % of samples, indicating accumulation of MC in foreshore sands. MC persistence was determined in laboratory microcosms containing either autoclaved or non-autoclaved sands augmented with MC. ELISA analysis showed a 46 % reduction in MC concentration in autoclaved sands over 7 weeks. In non-autoclaved sands, the MC concentration decreased by 100 % during the study, with approximately 99 % of the added MC degrading during days 21–28, suggesting that a biological mechanism drove degradation. Our findings reveal that beach sands can act as MC reservoirs, accumulating and concentrating MC during and following bloom events.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102601"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Quantifying phosphorus loads from legacy-phosphorus fields” [J. Gt. Lakes 50 (2024) 102446]","authors":"Michael R. Brooker ,&nbsp;Jessica D’Ambrosio ,&nbsp;Margaret Kalcic ,&nbsp;Kevin W. King ,&nbsp;Greg LaBarge ,&nbsp;Brian Roe ,&nbsp;Nathan D. Stoltzfus ,&nbsp;Sam Sage ,&nbsp;Rachelle Crow ,&nbsp;Robyn S. Wilson ,&nbsp;Ryan J. Winston ,&nbsp;Jay F. Martin","doi":"10.1016/j.jglr.2024.102498","DOIUrl":"10.1016/j.jglr.2024.102498","url":null,"abstract":"","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102498"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recovery of urban Great Lakes beaches after lake-level rise: The roles of infrastructure, sand supply, and management activities","authors":"C.R. Mattheus","doi":"10.1016/j.jglr.2025.102603","DOIUrl":"10.1016/j.jglr.2025.102603","url":null,"abstract":"<div><div>Managing beaches along urban waterfront corridors of the North American Great Lakes is challenging, as already complex lacustrine hydro-, littoral sand-supply, and coastal morphodynamics are impacted by shoreline and offshore infrastructure in ways not yet fully understood. This paper addresses the legacy controls of geomorphic developments and changes in sand volume within lakefront embayments, during high decadal base water-level conditions, on subsequent beach-recovery dynamics, during lake-level fall. Showcased are insights from annual topobathymetric assessments from 2021 through 2024, over which time Lake Michigan’s base water level fell by ∼ 1 m from its 2020 highstand. Data from ongoing geological monitoring activities were supplemented with federal datasets, which provided information on 2012–2020 sand volumetric changes across urban lakefront embayments with ∼ 1.5 m of lake-level rise. Beach geomorphic developments with 2020–2024 interannual lake-level fall are shown to have been influenced by the legacy of preceding morphodynamic and sand-sequestration patterns. Unlike the shared lake-level and storm histories, these parameters are beach-specific. While all Chicago beach shorelines retreated and experienced overwash into backshore regions during lake-level rise, shoreline advance and foredune re-establishment with lake-level fall have been influenced by preceding sand volumetric changes. This has implications for coastal managers, who must develop site-specific mitigation plans that take intrinsic controls of lakefront structures and time-varying sand-transport patterns on beach morphodynamics into account. The re-establishment of ecologically important foredune areas within urban beaches is of particular interest, given that the urban lakefront of Chicago has recently hosted nesting pairs of the endangered Great Lakes piping plover.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102603"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Silent invaders of freshwater ecosystems: Unveiling the microplastic crisis threatening the world’s largest soda lake (Lake Van, Türkiye)","authors":"Münevver Oral Kaba ,&nbsp;Mert Minaz ,&nbsp;Cüneyt Kaya ,&nbsp;Thibaut Jouy ,&nbsp;Irmak Kurtul ,&nbsp;Ülgen Aytan","doi":"10.1016/j.jglr.2025.102604","DOIUrl":"10.1016/j.jglr.2025.102604","url":null,"abstract":"<div><div>This study aims to assess the status of microplastic (MP) pollution in Lake Van (Türkiye), a vital freshwater ecosystem with a unique ecological significance. The objectives were to determine MP abundance, size distribution, type and polymer composition, and potential ecological risks to fish species. Comprehensive sampling was conducted at eight stations for water, while three of these stations specifically focused on the gastrointestinal tracts of fish. The findings indicate a high prevalence of MPs, particularly in areas with significant human activity, such as station 1 at Sapur (mean ± SD 69.08 ± 22.3 MP/m³) and station 6 at Gevaş (72.41 ± 26.9 MP/m³). Fibers were dominant in both water and fish samples, with polyethylene terephthalate (PET) and polyacrylonitrile (PAN) being the most commonly identified polymers. This study highlights the occurrence of MPs in endemic and/or economically important fish species such as tarek (<em>Alburnus tarichi</em>) (mean 1.50–2.25 MP/indiv.), Van loach (<em>Oxynoemacheilus ercisianus</em>) (mean 0.55 MP/indiv.), lizard barbel (<em>Barbus lacerta</em>) (mean 0.57 MP/indiv.), and Levantine scraper (<em>Capoeta damascina</em>) (mean 1.00–1.75 MP/indiv.). These findings highlight the potential ecological risks posed by MP contamination for ecosystem, fish, and human health, and the urgent need for targeted mitigation strategies to reduce MP pollution. The study provides critical baseline data for understanding MP dynamics in Lake Van and contributes to the broader understanding of freshwater MP contamination on a global scale.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102604"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Beach nourishment response and recent morphological evolution of Minnesota Point, Lake Superior","authors":"C.J. Roland ,&nbsp;J.T. Groten ,&nbsp;J.W. Lund ,&nbsp;J.L. Hanson","doi":"10.1016/j.jglr.2024.102459","DOIUrl":"10.1016/j.jglr.2024.102459","url":null,"abstract":"<div><div>Beach nourishments are a popular nature-based alternative to armoring for shoreline erosion mitigation, but nourishments have been criticized due to their environmental impacts and uncertain sustainability. Monitoring is often nonexistent or insufficient to constrain nourishment longevity and inform the renourishment interval required to maintain shoreline protection. This study uses a combination of topobathymetric surveys, high-resolution satellite-derived shorelines, and coastal engineering analyses to investigate the recent evolution of Minnesota Point and the fate of three beach nourishments constructed adjacent to littoral barriers. We use semi-empirical formulations for sediment compatibility, wave runup, and longshore sediment transport to inform the observed nourishment behavior. Minnesota Point experienced widespread foredune retreat averaging 7±2.8 m from 2009–2019 and 130,000 (70,000–140,000) m³ of sediment was eroded during this interval. The 2019 nourishment at the Superior Entry was rapidly eroded by strong storms, losing <span><math><mrow><mo>&gt;</mo><mn>80</mn><mtext>%</mtext></mrow></math></span> of the added beach width by the following spring. The 2020 and 2021 nourishments at the Duluth Entry retained <span><math><mrow><mo>&gt;</mo><mn>80</mn><mtext>%</mtext></mrow></math></span> of the nourishment material at the time of the last topobathymetric survey in the fall of 2022, and satellite-derived shorelines indicate that the beach remained 10 m wider than pre-nourishment conditions at the end of 2023. Modeled longshore transport rates over the period 2009–2022 averaged 11,400 m³ yr⁻¹ northwestward at the Superior Entry, nearly 3x greater than the 4000 m³ yr⁻¹ southeastward transport modeled at the Duluth Entry. These observations show that differences in shoreline orientation, littoral sediment supply, and grain size compatibility can lead to contrasting beach nourishment longevities, and this study provides additional measurements of Minnesota Point’s long-term morphological change which can help inform coastal resiliency efforts.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102459"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diet-induced declines in thiamine concentration threaten the cardiac health of wild sub-adult Chinook salmon","authors":"K.A. Adeli ,&nbsp;E.E. Singh ,&nbsp;J. Rinchard ,&nbsp;B.D. Neff","doi":"10.1016/j.jglr.2025.102586","DOIUrl":"10.1016/j.jglr.2025.102586","url":null,"abstract":"<div><div>Thiamine (vitamin B₁) is an essential vitamin involved in energy metabolism. Despite its importance, thiamine deficiency is a widespread issue among wildlife. Thiamine deficiency is particularly prevalent among salmonine fishes, in which it is diet-induced and has been associated with detrimental changes to cardiac morphology and function. Here, we assessed the diet, thiamine concentration, and ventricular morphology of sub-adult Chinook salmon (<em>Oncorhynchus tshawytscha</em>) in lakes Huron and Ontario. Stomach content analyses revealed distinct dietary differences between lakes. Chinook salmon from Lake Huron, which primarily consumed rainbow smelt (<em>Osmerus mordax</em>), had significantly higher skeletal muscle and ventricle thiamine concentrations compared to those from Lake Ontario, where their diet mainly consisted of alewife (<em>Alosa pseudoharengus</em>). Histological analyses of cardiac ventricles revealed that low ventricle thiamine concentrations were associated with detrimental changes to ventricular morphology including cardiomyocyte hypertrophy, degeneration, fibrosis, and changes in compact myocardium thickness. Altogether, this work demonstrates that low thiamine concentrations could threaten the cardiac health of wild salmonines, with important implications for their conservation and management.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102586"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic coasts, resilient futures: Navigating changes in the Great Lakes – Foreword to the special section","authors":"Lorelle A. Meadows ,&nbsp;Ethan Theuerkauf ,&nbsp;Cary Troy ,&nbsp;Pengfei Xue ,&nbsp;Guy Meadows ,&nbsp;Chin Wu","doi":"10.1016/j.jglr.2025.102618","DOIUrl":"10.1016/j.jglr.2025.102618","url":null,"abstract":"<div><div>Historically, research on coastal processes has largely been concentrated on oceanic environments which have much in common with the Great Lakes but also differ in significant ways. This is particularly true with respect to substantial and lasting water level fluctuations that occur on seasonal and decadal time scales that differ temporally from shorter term tidal fluctuations and greatly exceed long-term oceanic sea level rise. Since the late 1990s, the Great Lakes basin has experienced record-breaking high and low water levels as well as more frequent and intense storms. This combination of factors has led to changes to these nearshore environments and stimulated new and exciting coastal research characterizing and quantifying these changes and offering new insights into Great Lakes coastal processes. Studies in this special section address these unique coastal landscapes shaped by both natural forces (e.g., ice dynamics, waves, and fluctuating lake levels) and human influences (armoring, coastal structures, sediment nourishment, and policy interventions). The findings shared in this collection provide actionable knowledge for anticipating change, mitigating risk, and building long-term resilience while calling for adaptive management frameworks to foster proactive, equitable stewardship of the Great Lakes shorelines.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102618"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lean lake trout are found in spawning condition during spring-summer in lakes Michigan and Huron","authors":"Shannon R. Cressman ,&nbsp;Sarah A. Mansfield ,&nbsp;Fredrick W. Goetz ,&nbsp;Heather A. Hackney ,&nbsp;Jared J. Homola ,&nbsp;Francesco Guzzo ,&nbsp;Charles R. Bronte","doi":"10.1016/j.jglr.2025.102583","DOIUrl":"10.1016/j.jglr.2025.102583","url":null,"abstract":"<div><div>Here we report the first observations of the capture of lean lake trout (<em>Salvelinus namaycush</em>) in spawning condition in lakes Michigan and Huron during April–July, which is well outside their normal fall spawning season of September–December. Examination of 5731 lake trout landed by anglers at 56 ports in 2022 and 2023 revealed nine female lake trout possessing body cavities filled with mature, loose eggs and two males in ripe condition. Six fish were hatchery-reared and five were of wild origin. Ages of these fish ranged from 6 to 19 years and, of those where strain could be determined, were members of the Seneca Lake and Lewis Lake genetic strains. Loose eggs were similar in appearance to those found in mature fish in fall on spawning grounds. Histological examination of eggs from four females confirmed all were in some stage of ovarian maturity. Two females had ovulated just prior to capture, and the remaining two ovulated much earlier than the capture date. The adaptive advantage of the alternative seasonal spawning is speculative but may include reduced competition with fall spawners, decreased predation risk for juveniles during winter, and access to greater environmental resources in the early spring and summer.</div></div>","PeriodicalId":54818,"journal":{"name":"Journal of Great Lakes Research","volume":"51 4","pages":"Article 102583"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144687604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}