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Clarifying the trophic state concept to advance macroscale freshwater science and management Clarifying the trophic state concept to advance macroscale freshwater science and management
For over a century, ecologists have used the concept of trophic state (TS) to characterize an aquatic ecosystem's biological productivity. However, multiple TS classification schemes, each relying on a variety of measurable parameters as proxies for productivity, have emerged to meet use-specific needs. Frequently, chlorophyll a, phosphorus, and Secchi depth are used to classify TS based...
Authors
Michael Frederick Meyer, Benjamin M. Kraemer, Carolina C. Barbosa, Davi G.F. Cuhna, Walter Dodds, Stephanie E. Hampton, César Ordóñez, Rachel M. Pilla, Amina Pollard, Joshua A. Culpepper, Alexander K. Fremier, Tyler King, Robert Ladwig, Dina M. Leech, Shin-Ichiro S. Matsuzaki, Isabella Oleksy, Simon N. Topp, R. Iestyn Woolway, Ludmila S. Brighenti, Kate Fickas, Brian P. Lanouette, Jianning Ren, Mortimer Werther, Xiao Yang
Grammar to graph—An approach for semantic transformation of annotations to triples Grammar to graph—An approach for semantic transformation of annotations to triples
Data annotation is the process of labeling data to show the outcome that a related data model should predict. In this study, annotation data were transformed into semantic graph triples, mainly for use with the Resource Description Framework (RDF), a type of entity-relationship-attribute data model for graph databases. The transformation of annotation data to semantic graph triples...
Authors
Dalia E. Varanka, Emily Abbott
Manipulation of the Symbiodiniaceae microbiome confers multigenerational impacts on symbioses and reproductive ecology of its Exaiptasia diaphana host Manipulation of the Symbiodiniaceae microbiome confers multigenerational impacts on symbioses and reproductive ecology of its Exaiptasia diaphana host
Symbiodiniaceae-associated microbiota strongly influence cnidarian symbioses. We systematically reduced the bacterial and fungal communities associated with Symbiodiniaceae to study potential effects on the cnidarian holobiont Exaiptasia diaphana (Aiptasia). Clonal anemones were inoculated with xenic Breviolum minutum (SSB01) and microbiome-manipulated cultures after antibacterial or...
Authors
Mark McCauley, Federica Montesanto, Samuel A. Bedgood, Cody Miner, Keyla Plichon, Virginia M. Weis, Sandra Loesgen
Satellite tracking reveals heavy use of local MPAs by green turtles (Chelonia mydas) nesting in southeast Florida, USA Satellite tracking reveals heavy use of local MPAs by green turtles (Chelonia mydas) nesting in southeast Florida, USA
Florida hosts a regionally important nesting aggregation of green turtles (Chelonia mydas) in the North Atlantic, yet internesting and post-nesting movements for this rookery remain poorly understood. Here, we used satellite telemetry to track 23 green turtles nesting on southeast Florida beaches from 2017 to 2021 to investigate their spatial ecology and use of marine protected areas...
Authors
Glenn D. Goodwin, Kristen Hart, Abby C. Evans, Derek A. Burkholder
Movement characterizations of stocked juvenile lake sturgeon (Acipenser fulvescens) within the Genesee River, NY Movement characterizations of stocked juvenile lake sturgeon (Acipenser fulvescens) within the Genesee River, NY
Knowledge of the movements of post-stocked juvenile lake sturgeon (Acipenser fulvescens) within and beyond the Genesee River of New York is limited. Describing lake sturgeon post-stocking movements could further the understanding of population structure and the delineation of nursery habitat. This project aimed to characterize the movements of juvenile sturgeon by tagging and tracking 69...
Authors
Kyle T. Morton, Dimitry Gorsky, Dawn E. Dittman, Matthew E. Altenritter
A scientific vision and roadmap for earthquake rupture forecast developments, a USGS perspective A scientific vision and roadmap for earthquake rupture forecast developments, a USGS perspective
We articulate a scientific vision and roadmap for the development of improved Earthquake Rupture Forecast models, which are one of the two main modeling components used in modern seismic hazard and risk analysis. One primary future objective is to provide fully time-dependent models that include both elastic rebound and spatiotemporal clustering nationwide, which is particularly...
Authors
Edward H. Field, Alexandra Elise Hatem, Bruce E. Shaw, Morgan T. Page, P. Martin Mai, Kevin Ross Milner, Andrea L. Llenos, Andrew J. Michael, Frederick Pollitz, Jessica A. Thompson Jobe, Thomas E. Parsons, Olaf Zielke, David R. Shelly, Alice-Agnes Gabriel, Devin McPhillips, Richard W. Briggs, Elizabeth S. Cochran, Nico Luco, Mark D. Petersen, Peter M. Powers, Justin L. Rubinstein, Allison M. Shumway, Nicholas van der Elst, Yuehua Zeng, Christopher B. DuRoss, Jason M. Altekruse
ECCOE Landsat quarterly calibration and validation report—Quarter 1, 2025 ECCOE Landsat quarterly calibration and validation report—Quarter 1, 2025
Authors
Md Obaidul Haque, Nahid Hasan, Ashish Shrestha, Rajagopalan Rengarajan, Mark Lubke, Daniel Steinwand, Paul Bresnahan, Jerad L. Shaw, Kathryn Ruslander, Esad Micijevic, Michael J. Choate, Cody Anderson, Jeff Clauson, Kurt Thome, Ed Kaita, Amit Angal, Raviv Levy, Jeff Miller, Leibo Ding, Cibele Teixeira Pinto
Electric field-induced detachment and vibration analysis for Sea Lamprey Electric field-induced detachment and vibration analysis for Sea Lamprey
Objective: Sea lamprey Petromyzon marinus, a known ecological threat to native fish populations in the Great Lakes, use their oral suction disc to navigate challenging environments when moving upstream to spawn. This study investigated the physiological response of adult sea lamprey to detach under pulsed direct current electric fields. Methods: Adult sea lampreys in an attaching...
Authors
Muhamad Yusuf Bin Yaacob, Ian González-Afanador, Scott M. Miehls, Xiaobo Tan, Nelson Sepúlveda
Emigration probabilities and survival estimates of stocked juvenile lake sturgeon (Acipenser fulvescens) within the Genesee River, NY Emigration probabilities and survival estimates of stocked juvenile lake sturgeon (Acipenser fulvescens) within the Genesee River, NY
Knowledge of juvenile lake sturgeon (Acipenser fulvescens) survival is important both to understanding changes in population abundance and for assessing the efficacy of management practices like stocking. High mortality rates of juvenile fish are partially mitigated by stocking hatchery-raised individuals; however, survival of post-stocked lake sturgeon remains lower compared to survival...
Authors
Kyle T. Morton, Dimitry Gorsky, Dawn E. Dittman, Matthew E. Altenritter
Fish composition in a complex freshwater estuary: Environmental DNA metabarcoding versus capture surveys Fish composition in a complex freshwater estuary: Environmental DNA metabarcoding versus capture surveys
Objective The potential for environmental DNA (eDNA) to disperse widely from source organisms enables high detection efficiency but raises questions about eDNA's ability to differentiate fine-scale spatial patterns relative to conventional fish capture data.Methods We evaluate these questions in the St. Louis River estuary—a hydrologically and spatially complex coastal system within Lake...
Authors
Anett S Trebitz, Joel C. Hoffman, Gregory S. Peterson, Chelsea I. Hatzenbuhler, Erik M. Pilgrim, Sara L. Okum, W. Lindsay Chadderton, Andrew J. Tucker, Nicholas Bogyo, Jared Thomas Myers
USGS water resource investigations and activities USGS water resource investigations and activities
No abstract available.
Authors
Daniel C Thomas
Critical mineral inventory of select IOA-IOCG deposits, southwestern USA Critical mineral inventory of select IOA-IOCG deposits, southwestern USA
Critical minerals are necessary for modern technology and strategic purposes. Their increasing importance requires finding new and nontraditional resources. Samples of ore, altered, and unaltered host rock were collected from 26 iron mines and prospects in California, Nevada, and Utah to assess the potential of these deposits to host economic quantities of different critical minerals...
Authors
Ryan D. Taylor, Corey J. Meighan, Albert H. Hofstra