Atlantic salmon (Salmo salar) exposed to different preparatory photoperiods during smoltification show varying responses in gill Na+/K+-ATPase, salinity-specific mRNA transcription and ionocyte differentiation
Christian A. van Rijn, Paul L. Jones, Aaron G. Schultz, Brad S. Evans, Stephen D. McCormick, Luis O.B. Afonso
2020, Aquaculture (529)
Control of the parr-smolt transformation (or smoltification) is crucial for the husbandry and successful seawater (SW) transfer of Atlantic salmon (Salmo salar) reared in freshwater (FW) hatcheries. Photoperiod is an important environmental signal that initiates the complex physiological, morphological and behavioural...
11‑Deoxycortisol controls hydromineral balance in the most basal osmoregulating vertebrate, sea lamprey (Petromyzon marinus)
Ciaran A. Shaughnessy, Andre Barany-Ruiz, Stephen D. McCormick
2020, Scientific Reports (10)
It is unknown whether and how osmoregulation is controlled by corticosteroid signaling in the phylogenetically basal vertebrate group Agnatha, including lampreys and hagfishes. It is known that a truncated steroid biosynthetic pathway in lampreys produces two predominant circulating corticosteroids, 11-deoxycortisol (S) and 11-deoxycorticosterone (DOC). Furthermore, lampreys express only a single,...
Establishing Forster’s Tern (Sterna forsteri) nesting sites at pond A16 using social attraction for the South Bay Salt Pond restoration project
C. Alex Hartman, Josh T. Ackerman, Mark P. Herzog, Yiwei Wang, Cheryl Strong
2020, Open-File Report 2020-1081
Forster’s terns (Sterna forsteri), historically one of the most numerous colonial-breeding waterbirds in South San Francisco Bay, California, have experienced recent decreases in the number of nesting colonies and overall breeding population size. The South Bay Salt Pond Restoration Project aims to restore 50–90 percent of former salt evaporation ponds...
Restoration at the landscape scale as a means of mitigation and adaptation to climate change
Betsy von Holle, Stephanie G. Yelenik, Elise S Gornish
2020, Current Landscape Ecology Reports (5) 85-97
Purpose of ReviewAlthough landscape-scale restoration efforts are gaining traction worldwide, their success is generally unknown. We review landscape-scale restorations to gain insight to whether focal ecological outcomes have been achieved, in the face of changing environmental conditions.Recent FindingsOnly 9% of the 477 articles that resulted from...
The utility of zooarchaeological data to guide listing efforts for an imperiled mussel species (Bivalvia: Unionidae: Pleurobema riddellii)
Charles R. Randklev, Steve Wolverton, Nathan A. Johnson, Chase H. Smith, Traci DuBose, Clint Robertson, Julian Conley
2020, Conservation Science and Practice (2)
The status of species in freshwater systems shift over time due to natural and anthropogenic causes. Determining the magnitude and cause of these shifts requires a long-term perspective. This process is complicated when there are also questions about the taxonomic validity of a species. Addressing these issues is important because...
Use of upland and riparian areas by wintering bald eagles and implications for wind energy
Sara J Schmuecker, Drew A Becker, Michael J. Lanzone, Bob Fogg, Susan P Romano, Todd E. Katzner, Tricia A. Miller
2020, Journal of Wildlife Management (84) 1578-1589
Weather can shape movements of animals and alter their exposure to anthropogenic threats. Bald eagles (Haliaeetus leucocephalus) are increasingly at risk from collision with turbines used in onshore wind energy generation. In the midwestern United States, development of this energy source typically occurs in upland areas...
Nesting ecology of White-faced Ibis (Plegadis chihi) in Great Salt Lake, Utah
Mark P. Herzog, Josh T. Ackerman, C. Alex Hartman, Howard Browers
2020, The Wilson Journal of Ornithology (132) 134-144
We studied the nesting ecology of White-faced Ibis (Plegadis chihi) at 3 sites within the Bear River Migratory Bird Refuge, Great Salt Lake, Utah, USA. Ibises built nests in small mounds (mean height = 14.4 ± 4.3 cm) above shallow water (mean depth = 12.0...
Mountain stoneflies may tolerate warming streams: Evidence from organismal physiology and gene expression
Scott Hotaling, Alisha A. Shah, Kerry L. McGowan, Lusha M. Tronstad, J. Joseph Giersch, Debra S. Finn, H. Arthur Woods, Michael E. Dillon, Joanna L. Kelley
2020, Global Change Biology (26) 5524-5538
Rapid glacier recession is altering the physical conditions of headwater streams. Stream temperatures are predicted to rise and become increasingly variable, putting entire meltwater-associated biological communities at risk of extinction. Thus, there is a pressing need to understand how thermal stress affects mountain stream insects,...
Taxonomic evaluation of the Grallaria rufula (Rufous Antpitta) complex (Aves: Passeriformes: Grallariidae) distinguishes sixteen species
Morton L Isler, Terry Chesser, Mark B Robbins, Andres M Cuervo, C Daniel Cadena, Peter A. Hosner
2020, Zootaxa (4817)
Populations in the Rufous Antpitta (Grallaria rufula) complex occupy humid montane forests of the Andes from northern Colombia and adjacent Venezuela to central Bolivia. Their tawny to cinnamon-colored plumages are generally uniform, featuring subtle variation in hue and saturation across this range. In contrast to their conservative plumage, substantial vocal...
Discharge and dissolved-solids characteristics and trends of Snake River above Jackson Lake at Flagg Ranch, Wyoming, 1986–2018
Olivia L. Miller, Cheryl A. Eddy-Miller
2020, Scientific Investigations Report 2020-5062
The headwaters of the Snake River are in the mountains of northwestern Wyoming. Maintaining the recognized high quality of water in Grand Teton National Park is a National Park Service (NPS) priority. To characterize and understand the water resources of Grand Teton National Park, the NPS established a monitoring program...
Pseudo-prospective evaluation of UCERF3-ETAS forecasts during the 2019 Ridgecrest sequence
William J. Savran, Maximillian J. Werner, W. Marzocchi, David A. Rhoades, David D. Jackson, Kevin R. Milner, Edward H. Field, Andrew J. Michael
2020, Bulletin of the Seismological Society of America (110) 1799-1817
The 2019 Ridgecrest sequence provides the first opportunity to evaluate Uniform California Earthquake Rupture Forecast v.3 with epidemic‐type aftershock sequences (UCERF3‐ETAS) in a pseudoprospective sense. For comparison, we include a version of the model without explicit faults more closely mimicking traditional ETAS models (UCERF3‐NoFaults). We evaluate the forecasts with new...
U.S. Geological Survey STATEMAP Program—Geologic mapping for the public good
Abby Ackerman, Darcy McPhee
2020, Fact Sheet 2019-3060
As of 2020, STATEMAP has invested more than $150 million in 48 State geological surveys, matched dollar for dollar, to complete geologic mapping projects crucial to the health and security of State natural resources and residents. For more information about STATEMAP and other geologic mapping efforts supported by the National...
Evidence of previous faulting along the 2019 Ridgecrest, California earthquake ruptures
Jessica Thompson Jobe, Belle E. Philibosian, Colin Chupik, Timothy E. Dawson, Scott E.K. Bennett, Ryan D. Gold, Christopher DuRoss, Tyler C. Ladinsky, Katherine J. Kendrick, Elizabeth Haddon, Ian Pierce, Brian J. Swanson, Gordon G. Seitz
2020, Bulletin of the Seismological Society of America (110) 1427-1456
The July 2019 Ridgecrest earthquake sequence in southeastern California was characterized as surprising because only ~35% of the rupture occurred on previously mapped faults. Employing more detailed inspection of pre-event high-resolution topography and imagery in combination with field observations, we document evidence of active faulting in the landscape along the...
San Andreas fault exploration using refraction tomography and S-wave-type and Fϕ-mode guided waves
Rufus D. Catchings, Michael Rymer, Mark Goldman
2020, Bulletin of the Seismological Society of America (110) 3088-3102
Surface ruptures from the 18 April 1906 M∼7.9 San Francisco earthquake were distributed over an ∼35‐meter‐wide zone at San Andreas Lake on the San Francisco Peninsula in California (Schussler, 1906). Since ∼1906, the surface ruptures have been largely covered by water, but with water...
Liquefaction and related ground failure from July 2019 Ridgecrest earthquake sequence
Paolo Zimmaro, Chukwuebuka C Nweke, Janis Hernandez, Kenneth S Hudson, Martin B Hudson, Sean K Ahdi, Matt Boggs, Craig A. Davis, Christine A. Goulet, Scott J Brandenberg, Kenneth W. Hudnut, Jonathan P. Stewart
2020, Bulletin of the Seismological Society of America (110) 1549-1566
The 2019 Ridgecrest earthquake sequence produced a 4 July M 6.5 foreshock and a 5 July M 7.1 mainshock, along with 23 events with magnitudes greater than 4.5 in the 24 hr period following the mainshock. The epicenters of the two principal events were located in the Indian Wells Valley, northwest...
Factors influencing the probability of hydraulic fracturing induced seismicity in Oklahoma
Rosamiel Ries, Michael R. Brudzinski, Robert Skoumal, Brian S. Currie
2020, Bulletin of the Seismological Society of America (110) 2272-2282
Injection‐induced seismicity became an important issue over the past decade, and although much of the rise in seismicity is attributed to wastewater disposal, a growing number of cases have identified hydraulic fracturing (HF) as the cause. A recent study identified regions in Oklahoma where ≥75%...
Conservative plumage masks extraordinary phylogenetic diversity in the Grallaria rufula (Rufous Antpitta) complex of the humid Andes
Terry Chesser, Morton L Isler, Andres M Cuervo, C Daniel Cadena, Spencer C Galen, Laura M. Bergner, Robert C. Fleischer, Gustavo A Bravo, Daniel F Lane, Peter A. Hosner
2020, Auk (137)
The Grallaria rufula complex is currently considered to consist of 2 species, G. rufula (Rufous Antpitta) and G. blakei (Chestnut Antpitta). However, it has been suggested that the complex, populations of which occur in humid montane forests from Venezuela to Bolivia, comprises a suite of vocally distinct yet morphologically cryptic...
Effects of barred owl (Strix varia) removal on population demography of northern spotted owls (Strix occidentalis caurina) in Washington and Oregon—2019 annual report
J. David Wiens, Katie M. Dugger, Damon B. Lesmeister, Krista E. Dilione, David C. Simon
2020, Open-File Report 2020-1089
Strix occidentalis caurina (northern spotted owl; hereinafter referred to as spotted owl) have rapidly declined throughout the subspecies’ geographic range. Competition with invading Strix varia (barred owl) has been identified as an immediate cause of those declines. A pilot study in California showed that removal of barred owls coupled with...
Evaluation of the Washington State Department of Transportation stormwater monitoring and effectiveness program for 2014–19
Craig A. Senter, Richard W. Sheibley
2020, Open-File Report 2020-1079
The U.S. Geological Survey was asked by the Washington State Department of Transportation to provide technical assistance as a third-party reviewer of their stormwater effectiveness monitoring program during the transition between the completion of the 2014 Washington State Department of Ecology permit requirements and start of the new 2019 Washington...
Groundwater age and susceptibility of south Atlantic and Gulf Coast principal aquifers of the contiguous United States
John E. Solder
2020, Scientific Investigations Report 2020-5050
Groundwater susceptibility to contamination was investigated by using environmental tracer-based groundwater age metrics in the south Atlantic and Gulf Coast principal aquifer systems of the Southeastern Coastal Plain, Mississippi embayment–Texas coastal uplands, and the Coastal Lowlands. Samples of dissolved gas, tritium, sulfur hexafluoride, tritiogenic helium, and carbon-14 were collected from...
Introduction to the Special Issue on the 2019 Ridgecrest, California, Earthquake Sequence
Susan E. Hough, Zachary E. Ross, Timothy E. Dawson
2020, Bulletin of the Seismological Society of America (110) 1395-1399
No abstract available. ...
Genomic architecture and repertoire of the rainbow trout immunoglobulin light chain genes
Katherine Rego, John Hansen, Erin S Bromage
2020, Developmental and Comparative Immunology (113)
The genomic loci encoding the four immunoglobulin light chains (IgL1, IgL2, IgL3, and IgL4) in the Swanson trout genome assembly were annotated in order to provide a measurement of the potential IgL repertoire. IgL1 and IgL3 gene segments are co-localized on chromosomes 21, 18, 15, and 7 while IgL2 and...
A new species of freshwater mussel in the genus Popenaias Frierson, 1927, from the Gulf coastal rivers of central Mexico (Bivalvia: Unionida: Unionidae) with comments on the genus
Kentaro Inoue, Kevin S. Cummings, Jeremy S. Tiemann, Thomas D. Miller, Nathan Johnson, Chase H. Smith, Charles R. Randklev
2020, Zootaxa (4816) 457-490
The Gulf coastal drainages of central Mexico are a faunal transition zone between North and South America and harbor a unique assemblage of freshwater mussels (Bivalvia: Unionida). However, little information is available regarding the taxonomy, distribution, and evolutionary history of the Mexican mussel fauna due to limited sampling over the...
Availability and timing of fathead minnow supplementation influence largemouth bass survival and production in rearing ponds
Steven R. Chipps, Matthew J. Ward
2020, Open Journal of Animal Sciences (10) 337-345
Adjustments to rearing practices should be justified with increases in production, stocking success, or angler satisfaction. Largemouth bass (Micropterus salmoides) production was assessed between hatchery ponds where fish were restricted to an invertebrate diet or received supplemental fathead minnow (Pimephales promelas) forage during 2015. At harvest, age-0 bass yield was...
Decision analysis for greater insights into the development and evaluation of Chinook salmon restoration strategies in California’s Central Valley
James Peterson, Adam Duarte
2020, Restoration Ecology (28) 1596-1609
Considerable amounts of resources have been invested in ecological restoration projects across the globe to restore ecosystem integrity. Restoration strategies are often diverse and have been met with mixed success. In this paper, we describe the Chinook salmon (Oncorhynchus tshawytscha) decision-support models developed by the Central Valley Project Improvement Act...
