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Filter Total Items: 171105

First documentation of grass carp spawning in Lake Erie’s Central Basin

Grass carp (Ctenopharyngodon idella) are non-indigenous to North America having been translocated to the United States in the 1960s as a potential non-chemical solution for nuisance aquatic vegetation. Reproductively viable grass carp now exist in many watersheds in the United States. In the Great Lakes basin, grass carp were first discovered in the 1980s with direct confirmation of successful rep
Authors
Corbin David Hilling, Adam J. Landry, James Roberts, Nathan Thompson, Cathy A. Richter, Ryan E. Brown, Christine M. Mayer, Song S. Qian

West Nile virus (avian) case definition for wildlife

Diagnostic laboratories receive carcasses and samples for diagnostic evaluation and pathogen/toxin detection. Case definitions bring clarity and consistency to the evaluation process. Their use within and between organizations allows more uniform reporting of diseases and etiologic agents. The intent of a case definition is to provide scientifically based criteria for determining (a) if an individ
Authors
Stéphane Lair, Valerie I. Shearn-Bochsler, Marnie Zimmer

Leveraging natural capital accounting to support businesses with nature-related risk assessments and disclosures

Nature loss threatens businesses, the global economy and financial stability. Understanding and addressing these risks for business will require credible measurement approaches and data. This paper explores how natural capital accounting (NCA) can support business data and information needs related to nature, including disclosures aligned with the Taskforce on Nature-related Financial Disclosures
Authors
Jane Carter Ingram, Emily McKenzie, Kenneth J. Bagstad, John Finisdore, Rayne van den Berg, Eli P. Fenichel, Michael Vardon, Stephen M. Posner, Marta Santamaria, Lisa Mandle, Richard J. Barker, James Spurgeon

Albinism in American Bullfrog, Lithobates catesbeianus Shaw, 1802 tadpoles from the Gila River, New Mexico, USA

No abstract available.
Authors
Andrew M. Ray, J Andy Hubbard, Owen T Brown, Elizabeth R Schnaubelt, J. Tomasz Giermakowski, Erin R Zylstra, Blake R. Hossack

Groundwater sustainability and land subsidence in California’s Central Valley

The Central Valley of California is one of the most prolific agricultural regions in the world. Agriculture is reliant on the conjunctive use of surface-water and groundwater. The lack of available surface-water and land-use changes have led to pumping-induced groundwater-level and storage declines, land subsidence, changes to streamflow and the environment, and the degradation of water quality. A
Authors
Claudia C. Faunt, Jonathan A. Traum, Scott E. Boyce, Whitney A. Seymour, Elizabeth Rae Jachens, Justin T. Brandt, Michelle Sneed, Sandra Bond, Marina Marcelli

The influence of channel morphology and hydraulic complexity on larval pallid sturgeon (Scaphirhynchus albus) drift and dispersal dynamics in the Fort Peck Segment, Upper Missouri River: Insights from particle tracking simulations

Longitudinal dispersal of migratory fish species can be interrupted by factors that fragment rivers, such as dams and reservoirs with incompatible habitats, and indirect alterations to variables, such as water temperature or turbidity. The endangered pallid sturgeon (Scaphirhynchus albus) population in the Upper Missouri River Basin in North Dakota and Montana is an example of such fragmentation a
Authors
Bruce Call, Richard R. McDonald, Susannah O. Erwin, R. B. Jacobson

Limiting downstream dispersal of invasive carp egg surrogates using a laboratory-scale oblique bubble screen

We conceptualize and test a non-intrusive barrier, comprised of an oblique bubble screen (OBS) oriented at an angle to the mean flow, to prevent the downstream dispersal of invasive carp egg surrogates. Three surrogates of different densities and diameters were tested. Secondary flows created by the OBS were tuned to redirect surrogate eggs to facilitate their capture. Surface particle image veloc
Authors
Vindhyawasani Prasad, Cory D. Suski, P. Ryan Jackson, Amy E. George, Duane Chapman, Jesse Robert Fischer, Rafael O. Tinoco

Treat yourself: Pilot testing a new method to treat mange in wild carnivores

Mange is a skin disease caused by mites that parasitize an animal's skin, often yielding inflamed immune responses and hair loss. At a population level, mange may reduce survival and cause population declines. Many forms of mange can be treated quite effectively when an animal is in hand; however, this is not often feasible for many free-ranging wildlife populations. Some animals, particularly ter
Authors
David Edward Ausband, Peter F. Rebholz, Joanne G. Moriarty, Seth P. D. Riley

Habitat use of anadromous and amphidromous sturgeons in North America: A systematic review

Sturgeons are among the most endangered fishes in the world. Identifying habitat use characteristics to inform restoration projects is crucial for recovery. However, small sample sizes, inadequate replication of studies, and limited spatial extents complicate our ability to effectively apply the findings of single studies to endangered species conservation across the larger riverscape. We synthesi
Authors
Erin K. Gilligan-Lunda, Adam Duarte, James Peterson

Evaluation of streamflow predictions from LSTM models in water- and energy-limited regions in the United States

The application of Long Short-Term Memory (LSTM) models for streamflow predictions has been an area of rapid development, supported by advancements in computing technology, increasing availability of spatiotemporal data, and availability of historical data that allows for training data-driven LSTM models. Several studies have focused on improving the performance of LSTM models; however, few studie
Authors
Kul Bikram Khand, Gabriel B. Senay

Prey supply and predation as potential limitations to feasibility of anadromous salmonid introductions in a reservoir

Introducing anadromous fish upstream of migration barriers has frequently been proposed as a conservation strategy, but existing conditions and future changes to the ecosystems above barriers such as invasive species, climate change, and varying water operations influence the capacity to support such introductions. In the Upper Skagit River, Washington, USA, introduction of anadromous salmonids ab
Authors
Rachelle Carina Johnson, Benjamin Lorenz Jensen, Tessa Julianne Code, Jeffrey J. Duda, David Beauchamp

Neonicotinoids made easy

 No abstract a
Authors
Shipra Shukla, Elias Tejeda