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Modeling the effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine-dominant estuary Modeling the effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine-dominant estuary

The effects of large-scale interior headland restoration on tidal hydrodynamics and salinity transport in an open coast, marine dominant estuary (Grand Bay, Alabama, U.S.A) are investigated using a two-dimensional model, the Discontinuous-Galerkin Shallow Water Equations Model (DG-SWEM). Three restoration alternatives are simulated for present-day conditions, as well as under 0.5 m of...
Authors
Davina Passeri, Robert L. Jenkins, Autumn C. Poisson, Matthew V. Bilskie, Peter Bacopoulos

Is chemical control for crayfish in hatchery fish shipments practical? Is chemical control for crayfish in hatchery fish shipments practical?

Invasive crayfish (family Cambaridae) displace native crayfish species and alter aquatic habitat, community structure, and ecosystem function. We evaluated whether chemical control can be a reliable control agent for crayfish to ensure that shipments from fish hatcheries did not result in new infestations of invasive crayfish. A series of acute (≤1 h) toxicity tests were conducted to...
Authors
Ann Allert, Daniel J. Westrich, David W. Whites, Katrina Knott, Nathan Storts, Robert J. DiStefano

Late Pleistocene-Holocene age and stratigraphy of the Currituck Slide Complex, U.S. mid-Atlantic continental slope: Implications for landslide triggering Late Pleistocene-Holocene age and stratigraphy of the Currituck Slide Complex, U.S. mid-Atlantic continental slope: Implications for landslide triggering

Considerable effort has been made to link submarine slope failures to changes in local and global-scale environmental conditions, in order to assess landslide hazard probability. Here we provide the first radiocarbon dates of hemipelagic sediment overlying mass transport deposits and inferred failure surfaces of the Currituck Slide Complex (CSC), a prominent landslide scar on the U.S...
Authors
Jason Chaytor, Uri S. ten Brink, Christopher D. P. Baxter

A century of hydrologic data collection prepares western Long Island for current and future water-resources challenges A century of hydrologic data collection prepares western Long Island for current and future water-resources challenges

Freshwater is a vital natural resource. New York is a water-rich State; however, even here, the economical use of water resources is needed to ensure there is enough water of adequate quality for human and ecological needs—now and into the future. Nowhere in New York is this more evident than on Long Island where public-water supply is obtained from the sole-source aquifers directly...
Authors
Robert F. Breault, John P. Masterson, Ronald Busciolano, Irene Fisher

Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends Northwest Forest Plan — The first 25 years (1994–2018): Watershed condition status and trends

This report describes status and trends in watershed condition across the Northwest Forest Plan (NWFP) area over the first 25 years since its inception in 1994. The program charged with this task is the Aquatic and Riparian Effectiveness Monitoring Program (AREMP), which has assembled information from field data collection, spatial datasets, and a host of landscape models to evaluate the...
Authors
Jason Dunham, Christine Hirsch, Sean Gordon, Rebecca L. Flitcroft, Nathan Chelgren, Marcia N. Snyder, David P Hockman-Wert, Gordon H. Reeves, Heidi V. Andersen, Scott K. Anderson, William A. Battaglin, Tom A. Black, Jason Brown, Shannon Claeson, Lauren Hay, Emily D. Heaston, Charles H. Luce, Nathan Nelson, Colin Penn, Mark Raggon

Pathology and infectious agents of unionid mussels: A primer for pathologists in disease surveillance and investigation of mortality events Pathology and infectious agents of unionid mussels: A primer for pathologists in disease surveillance and investigation of mortality events

Freshwater mussels are one of the most imperiled groups of organisms in the world, and more than 30 species have gone extinct in the last century. While habitat alteration and destruction have contributed to the declines, the role of disease in mortality events is unclear. In an effort to involve veterinary pathologists in disease surveillance and the investigation of freshwater mussel...
Authors
Susan Knowles, Michelle Dennis, Andrew McElwain, Eric Leis, Jordan C. Richard

MLAAPDE: A machine learning dataset for determining global earthquake source parameters MLAAPDE: A machine learning dataset for determining global earthquake source parameters

The Machine Learning Asset Aggregation of the Preliminary Determination of Epicenters (MLAAPDE) dataset is a labeled waveform archive designed to enable rapid development of machine learning (ML) models used in seismic monitoring operations. MLAAPDE consists of more than 5.1 million recordings of 120 s long three‐component broadband waveform data (raw counts) for P, Pn, Pg, S, Sn, and Sg...
Authors
Hank M. Cole, William L. Yeck, Harley M. Benz

The unmarked R package: Twelve years of advances in occurrence and abundance modelling in ecology The unmarked R package: Twelve years of advances in occurrence and abundance modelling in ecology

Species distribution models (SDMs) are widely applied to understand the processes governing spatial and temporal variation in species abundance and distribution but often do not account for measurement errors such as false negatives and false positives.We describe unmarked, a package for the freely available and open-source R software that provides a complete workflow for modelling...
Authors
Kenneth F. Kellner, Adam D. Smith, J. Andrew Royle, Marc Kéry, Jerrold L. Belant, Richard B. Chandler

A comprehensive plan for in-water sea turtle data collection in the US Gulf of Mexico A comprehensive plan for in-water sea turtle data collection in the US Gulf of Mexico

The Deepwater Horizon Open Ocean Trustee Implementation Group (OO TIG) released a Final Open Ocean Restoration Plan 2 in 2019, which included a project titled Developing a Gulf-wide Comprehensive Plan for In-water Sea Turtle Data Collection. This document, A Comprehensive Plan for In-water Sea Turtle Data Collection in the US Gulf of Mexico (Plan), is the culmination of that OO TIG...
Authors
Kristen Hart, Pamela T. Plotkin, Christopher Sasso, Blair E. Witherington

Implications of tree expansion in shrubland ecosystems for two generalist avian predators Implications of tree expansion in shrubland ecosystems for two generalist avian predators

Shrublands globally have undergone structural changes due to plant invasions, including the expansion of native trees. Removal of native conifer trees, especially juniper (Juniperus spp.), is occurring across the Great Basin of the western U.S. to support declining sagebrush (Artemisia spp.) habitats and associated wildlife species, such as greater sage-grouse (Centrocercus urophasianus)...
Authors
Aaron C. Young, Todd E. Katzner, Douglas J. Shinneman, Tracey N. Johnson

Prevailing impacts of river management on microplastic transport in contrasting US streams: Rethinking global microplastic flux estimations Prevailing impacts of river management on microplastic transport in contrasting US streams: Rethinking global microplastic flux estimations

While microplastic inputs into rivers are assumed to be correlated with anthropogenic activities and to accumulate towards the sea, the impacts of water management on downstream microplastic transport are largely unexplored. A comparative study of microplastic abundance in Boulder Creek (BC), and its less urbanized tributary South Boulder Creek (SBC), (Colorado USA), characterized the...
Authors
Anna Kukkola, Robert L. Runkel, Uwe Schneidewind, Sheila F. Murphy, Liam Kelleher, Greg Sambrook Smith, Holly Astrid Nel, Iseult Lynch, Stefan Krause
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