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Evaluate propagation efforts and determine dispersal patterns for Quadrula fragosa from tagged, artificially infested host fish (Ictalurus punctatus) in the St. Croix National Scenic Riverway (SACN)
The St. Croix National Scenic Riverway (SACN) has been the site of propagation and restoration efforts for two federally endangered unionid mussels: Higgins’ Eye, Lampsilis higginsii and Winged Mapleleaf (WML), Quadrula fragosa. Since about 2000, government agencies have collaboratively developed techniques to successfully propagate Higgins’ Eye and reintroduce the captive-reared subadult mussels
Authors
Michelle Bartsch
Field and laboratory validation of new sampling gear to quantify coregonine egg deposition and larval emergence across spawning habitat gradients
The influence of habitat and environmental conditions on Great Lakes coregonine reproduction is not well described, in part, because we lack sampling gears for early life stages that are effective across habitats. We designed new egg and larval emergence traps to quantify coregonine reproductive success across variable depths and substrates and tested them in laboratory and field settings. In the
Authors
Brian C. Weidel, Cameron Davis, Brian O'Malley, Hannah Lachance, Christopher Osborne, Alexander J. Gatch, Stacy Furgal, Gregg Mackey, Marc Chalupnicki, Nicholas Sard, Aaron C. Heisey, Michael Connerton, Brian F. Lantry
Intra-lake trends and inter-lake comparisons of Mysis diluviana life history variables and their relationships to food limitation
The opossum shrimp, Mysis diluviana, is an important member of the offshore food webs of the Laurentian Great Lakes, but its response to ecosystem changes that have occurred over the past several decades is not well understood. We combined the data of four long-term sampling programs, adding several years of data (post and prior) to previously published analyses to offer a longer-term, cross-basin
Authors
Toby J. Holda, J.M. Watkins, Anne E. Scofield, Stephen Pothoven, David Warner, Timothy P. O'Brien, Kelly L. Bowen, Warren J.S. Currie, David J. Jude, Patrick Boynton, Lars G. Rudstam
Cruise Report for NOAA Ship Nancy Foster Cruise NF-22-06
Between 9 August and 1 September, 2022, the Mesophotic and Deep Benthic (MDBC) Habitat Assessment and Evaluation (HAE) and Mapping, Ground-truthing, and Predictive Habitat Modeling (MGM) projects implemented remotely operated vehicle (ROV) dives, multibeam surveys, and conductivity, temperature, depth (CTD) operations at deep-sea sites in the northern Gulf of Mexico. The primary sites selected are
Authors
Randy Clark, Amanda Demopoulos
Episodic evolution of a protracted convergent margin revealed by detrital zircon geochronology in the Greater Caucasus
Convergent margins play a fundamental role in the construction and modification of Earth's lithosphere and are characterized by poorly understood episodic processes that occur during the progression from subduction to terminal collision. On the northern margin of the active Arabia-Eurasia collision zone, the Greater Caucasus Mountains provide an opportunity to study a protracted convergent margin
Authors
Dylan A Vasey, Leslie Garcia, Eric S. Cowgill, Charles Cashman Trexler, Tea Godoladze
A general approach for evaluating of the coverage, resolution, and representation of streamflow monitoring networks
Streamflow monitoring networks provide information for a wide range of public interests in river and streams. A general approach to evaluate monitoring for different interests is developed to support network planning and design. The approach defines three theoretically distinct information metrics (coverage, resolution, and representation) based on the spatial distribution of a variable of interes
Authors
Christopher Konrad, Scott W. Anderson
Contaminant risks in consuming fish from the Area of Concern in the Upper Niagara River
The lack of contemporary data on contaminants in resident fish prevents an analysis of temporal trends in contaminant concentrations and the present-day status of the “Restrictions on Fish and Wildlife Consumption” Beneficial Use Impairment (BUI) in the Niagara River Area of Concern (AOC). During 2018, concentrations of 260 contaminants in four groups of fish species from five areas in or near the
Authors
Barry P. Baldigo, Patrick J. Phillips, Scott D. George, Mark Filipski
Characterizing changes in the 1-percent annual exceedance probability streamflows for climate-change scenarios in the Housatonic River watershed of Massachusetts, Connecticut, and New York
Current methods for determining the 1-percent annual exceedance probability (AEP) for a streamflow assume stationarity (the assumption that the statistical distribution of data from past observations does not contain trends and will continue unchanged in the future). This assumption allows the 1-percent AEP to be determined based on historical streamflow records. However, the assumption of station
Authors
Scott A. Olson
Monitoring nesting waterbirds for the South Bay Salt Pond Restoration Project—2022 breeding season
The San Francisco Bay supports thousands of breeding waterbirds annually and hosts large populations of American avocets (Recurvirostra americana), black-necked stilts (Himantopus mexicanus), and Forster’s terns (Sterna forsteri). These three species have relied largely on former commercial salt ponds in South San Francisco Bay, which provide wetland foraging habitat and island nesting habitat. Th
Authors
Joshua T. Ackerman, C. Alex Hartman, Mark P. Herzog
Annotated bibliography of scientific research on Gunnison sage-grouse published from January 2005 to September 2022
Integrating recent scientific knowledge into management decisions supports effective natural resource management and can lead to better resource outcomes. However, finding and accessing scientific knowledge can be time consuming and costly. To assist in this process, the U.S. Geological Survey is creating a series of annotated bibliographies on topics of management concern for western lands. Previ
Authors
Logan M. Maxwell, Elisabeth C. Teige, Samuel E. Jordan, Tait K. Rutherford, Ella M. Samuel, Lea B. Selby, Alison C. Foster, Nathan J. Kleist, Sarah K. Carter
Testing the hierarchy of predictability in grassland restoration across a gradient of environmental severity
Ecological restoration is critical for recovering degraded ecosystems but is challenged by variable success and low predictability. Understanding which outcomes are more predictable and less variable following restoration can improve restoration effectiveness. Recent theory asserts that the predictability of outcomes would follow an order from most to least predictable from coarse to fine communit
Authors
Diana Bertuol-Garcia, Emma Ladouceur, Lars A. Brudvig, Daniel C. Laughlin, Seth M. Munson, Michael F. Curran, Kirk W. Davies, Lauren N. Svejcar, Nancy Shackelford
Evaluation of shoreline rotenone application to control Largemouth Bass recruitment in small impoundments
ObjectiveReducing Largemouth Bass Micropterus salmoides recruitment and therefore population density could benefit recreational fisheries in small impoundments by improving individual growth rates and increasing the average size and condition of Largemouth Bass. To achieve these effects, methods of controlling Largemouth Bass recruitment should avoid reducing the productivity of their primary prey
Authors
Tyler Steven Coleman, Robert W. Eckelbecker, Andrew Kenneth Carlson, Dennis R. DeVries, Russell A. Wright, Benjamin A. Staton, Stephen W. Parker, Collin R. Chittam, Richard G. Lovell, Matthew J. Catalano