Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
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Genome resequencing clarifies phylogeny and reveals patterns of selection in the toxicogenomics model Pimephales promelas Genome resequencing clarifies phylogeny and reveals patterns of selection in the toxicogenomics model Pimephales promelas
Background The fathead minnow (Pimephales promelas) is a model species for toxicological research. A high-quality genome reference sequence is available, and genomic methods are increasingly used in toxicological studies of the species. However, phylogenetic relationships within the genus remain incompletely known and little population-genomic data are available for fathead minnow...
Authors
Katy E. Klymus, Robert A. Hrabik, Nathan Thompson, Robert S. Cornman
Mismatches in scale between highly mobile marine megafauna and marine protected areas Mismatches in scale between highly mobile marine megafauna and marine protected areas
Marine protected areas (MPAs), particularly large MPAs, are increasing in number and size around the globe in part to facilitate the conservation of marine megafauna under the assumption that large-scale MPAs better align with vagile life histories; however, this alignment is not well established. Using a global tracking dataset from 36 species across five taxa, chosen to reflect the...
Authors
Melinda G. Conners, Nicholas B. Sisson, Pierre D. Agamboue, Philip W. Atkinson, Alastair M. M. Baylis, Scott R. Benson, Barbara A. Block, Steven J. Bograd, Pablo Bordino, W. D. Bowen, Paul Brickle, Ignacio M. Bruno, Victoria Gonzalez Carman, Cory D. Champagne, Daniel E. Crocker, Daniel P. Costa, Tiffany M. Dawson, Tomo Deguchi, Heidi Dewar, Philip D. Doherty, Tomoharu Eguchi, Angela Formia, Brendan J. Godley, Rachel T. Graham, Christian Gredzens, Kristen Hart, Lucy A. Hawkes, Suzanne Henderson, Robert William Henry, Luis A. Huckstadt, Ladd M. Irvine, Sarah S. Kienle, Carey E. Kuhn, Damian Lidgard, Stephanie A. Loredo, Bruce R. Mate, Kristian Metcalfe, Jacob Nzegoue, Carmen K. Kouerey Oliwina, Rachael A. Orben, Kiyoaki Ozaki, Richard Parnell, Elizabeth P. Pike, Patrick W. Robinson, Howard C. Rosenbaum, Fumio Sato, Scott A. Shaffer, Donna J. Shaver, Samantha E. Simmons, Brian J. Smith, Guy-Philippe Sounguet, Robert M. Suryan, David R. Thompson, Megan Tierney, Dominic Tilley, Hillary S. Young, Victoria Warwick-Evans, Michael J. Weise, Randall S. Wells, Bradley P. Wilkinson, Matthew J. Witt, Sara M. Maxwell
Water-quality conditions and constituent loads, water years 2013–19, and water-quality trends, water years 1983–2019, in the Scituate Reservoir drainage area, Rhode Island Water-quality conditions and constituent loads, water years 2013–19, and water-quality trends, water years 1983–2019, in the Scituate Reservoir drainage area, Rhode Island
The Scituate Reservoir is the primary source of drinking water for more than 60 percent of the population of Rhode Island. From October 1, 1982, to September 30, 2019, water years (WYs) 1983–2019 (a water year is the period between October 1 and September 30 and is designated by the year in which it ends), the Providence Water Supply Board maintained a fixed-frequency sampling program at...
Authors
Alana B. Spaetzel, Kirk Smith
Open removal models with temporary emigration and population dynamics to inform invasive animal management Open removal models with temporary emigration and population dynamics to inform invasive animal management
Removal sampling data are the primary source of monitoring information for many populations (e.g., invasive species, fisheries). Population dynamics, temporary emigration, and imperfect detection are common sources of variation in monitoring data and are key parameters for informing management. We developed two open robust-design removal models for simultaneously modeling population...
Authors
Bradley Udell, Julien Martin, Christina Romagosa, J. Hardin Waddle, Fred Johnson, Bryan Falk, Amy A. Yackel Adams, Sarah Funck, Jennifer Ketterlin Eckles, Eric Suarez, Frank Mazzotti
Growth and survival rates of dispersing free embryos and settled larvae of pallid sturgeon (Scaphirhynchus albus) in the Missouri River, Montana and North Dakota Growth and survival rates of dispersing free embryos and settled larvae of pallid sturgeon (Scaphirhynchus albus) in the Missouri River, Montana and North Dakota
We released nearly 1.0 million 1-day post-hatch (dph) and 5-dph pallid sturgeon (Scaphirhynchus albus) free embryos in the Missouri River on 1 July 2019 and sequentially captured survivors at multiple sites through a 240-km river reach to quantify daily growth and survival rates during the early life stages. Genetic analysis was used to assign captured fish to released family lots and...
Authors
Patrick Braaten, R.J. Holm, J. A. Powell, E.J. Heist, Amy C. Buhman, Colt Taylor Holley, Aaron J. Delonay, T.M. Haddix, R.H. Wilson, R. B. Jacobson
One shell of a problem: Cumulative threat analysis of male sea turtles indicates high anthropogenic threat for migratory individuals and Gulf of Mexico residents One shell of a problem: Cumulative threat analysis of male sea turtles indicates high anthropogenic threat for migratory individuals and Gulf of Mexico residents
Human use of oceans has dramatically increased in the 21st century. Sea turtles are vulnerable to anthropogenic stressors in the marine environment because of lengthy migrations between foraging and breeding sites, often along coastal migration corridors. Little is known about how movement and threat interact specifically for male sea turtles. To better understand male sea turtle...
Authors
Micah Ashford, James I. Watling, Kristen Hart
Lacunarity as a tool for assessing landscape configuration over time and informing long-term monitoring: An example using seagrass Lacunarity as a tool for assessing landscape configuration over time and informing long-term monitoring: An example using seagrass
Context Seagrasses are submerged marine plants that have been declining globally at increasing rates. Natural resource managers rely on monitoring programs to detect and understand changes in these ecosystems. Technological advancements are allowing for the development of patch-level seagrass maps, which can be used to explore seagrass meadow spatial patterns.Objectives Our research...
Authors
Nicholas Enwright, Kelly M. Darnell, Greg A. Carter
PCB exposure is associated with reduction of endosymbionts in riparian spider microbiomes PCB exposure is associated with reduction of endosymbionts in riparian spider microbiomes
Microbial communities, including endosymbionts, play diverse and critical roles in host biology and reproduction, but contaminant exposure may cause an imbalance in the microbiome composition with subsequent impacts on host health. Here, we examined whether there was a significant alteration of the microbiome community within two taxa of riparian spiders (Tetragnathidae and Araneidae)...
Authors
Brittany G. Perrotta, Karen A. Kidd, David Walters
Understanding impacts of sea-level rise and land management on critical coastal marsh habitat Understanding impacts of sea-level rise and land management on critical coastal marsh habitat
Coastal wetlands in the Louisiana Mississippi River Deltaic Plain (MRDP) experience some of the highest rates of relative sea-level rise (SLR) in the world, leading to elevated surface water salinity and prolonged flooding. Elevated salinity causes a shift toward more salt-tolerant vegetation communities, associated with changes in ecosystem function and services. As sea level continues...
Authors
Camille Stagg
Bedrock depth influences spatial patterns of summer baseflow, temperature and flow disconnection for mountainous headwater streams Bedrock depth influences spatial patterns of summer baseflow, temperature and flow disconnection for mountainous headwater streams
In mountain headwater streams, the quality and resilience of summer cold-water habitat is generally regulated by stream discharge, longitudinal stream channel connectivity and groundwater exchange. These critical hydrologic processes are thought to be influenced by the stream corridor bedrock contact depth (sediment thickness), a parameter often inferred from sparse hillslope borehole...
Authors
Martin Briggs, Phillip J. Goodling, Zachary Johnson, Karli M. Rogers, Nathaniel P. Hitt, Jennifer H. Fair, Craig D. Snyder
A comprehensive assessment of mangrove species and carbon stock on Pohnpei, Micronesia A comprehensive assessment of mangrove species and carbon stock on Pohnpei, Micronesia
Mangrove forests are the most important ecosystems on Pohnpei Island, Federated States of Micronesia, as the island communities of the central Pacific rely on the forests for many essential services including protection from sea-level rise that is occurring at a greater pace than the global average. As part of a multi-component assessment to evaluate vulnerabilities of mangrove forests...
Authors
Victoria Woltz, Elitsa I. Peneva-Reed, Zhiliang Zhu, Eric L. Bullock, Richard A. MacKenzie, Maybeleen Apwong, Ken Krauss, Dean B. Gesch
Sediment and nutrient retention on a reconnected floodplain of an Upper Mississippi River tributary, 2013–2018 Sediment and nutrient retention on a reconnected floodplain of an Upper Mississippi River tributary, 2013–2018
The connection of rivers with their floodplains has been greatly reduced in agricultural drainage basins, especially in the Upper Mississippi River Basin. The restriction of the Mississippi River from its floodplain has reduced the sediment trapping and nutrient deposition capabilities of the floodplain, exacerbating water quality problems in the river and in downstream waterbodies. A...
Authors
Lynn A. Bartsch, Rebecca M. Kreiling, Lance R. Gruhn, Jessica D. Garrett, William B. Richardson, Greg M. Nalley