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Synthesis of observed field salinity ranges for oyster and seagrass species in the U.S. Synthesis of observed field salinity ranges for oyster and seagrass species in the U.S.
Oyster and seagrass are important sessile, habitat-forming species that may be impacted by changes in salinity regimes from anthropogenic or climatic drivers. While salinity tolerance literature is focused on controlled experiments, observed field salinity ranges of species are more disparate. The salinity ranges in which organisms are observed in the field may not align exactly with...
Authors
Charlotte I. Lee, Simeon Yurek, David B. Eggleston, Natalie G. Nelson
Diel and spatial variability in cyanobacterial composition, gene abundance, and toxin concentration: A pilot study Diel and spatial variability in cyanobacterial composition, gene abundance, and toxin concentration: A pilot study
We designed a pilot field study to assess relations between sunlight, cyanobacteria, and cyanotoxins. In 2021, we collected day (07:00 h, 10:00 h, 13:00 h, 16:00 h) and night samples (19:00 h, 22:00 h, 01:00 h, 04:00 h) at two locations in Kabetogama Lake, MN, USA. One sample set was collected from the lakeward end of a boat dock and the other on the nearby shoreline. Cyanobacterial...
Authors
Victoria Christensen, Leon R. Katona, Jaime F. LeDuc, Ryan P. Maki, Hayley T. Olds, James C. Smith, Hailey Elizabeth Trompeter
Modeling diverse environmental responses of reservoirs to floating photovoltaic systems Modeling diverse environmental responses of reservoirs to floating photovoltaic systems
Floating photovoltaic (FPV) systems are emerging as a promising strategy for large-scale clean energy production worldwide. However, by altering key physical drivers such as solar radiation and wind mixing, FPV installations may have also unintended consequences for lakes and reservoirs. Given the wide diversity of freshwater systems globally, understanding the consistency in direction...
Authors
Evan M. Bredeweg, Ivan Arismendi, Christina Amy Murphy, Sarah K. Henkel
Submarine groundwater discharge creates cold‐water refugia that can mitigate exposure of heat stress in nearshore corals Submarine groundwater discharge creates cold‐water refugia that can mitigate exposure of heat stress in nearshore corals
Coral reef mortality around the world is accelerating due to human activities and rising sea temperatures that cause bleaching, which is expected to become more frequent. Our ability to predict which corals will be most resilient, however, remains limited due to insufficient information characterizing nearshore temperature and habitat conditions. In this study, we examine how submarine...
Authors
Eric E. Grossman, Ferdinand K.J. Oberle, Curt D. Storlazzi
Isotopic compositions of modern seawater at the Mariana and Yap trenches Isotopic compositions of modern seawater at the Mariana and Yap trenches
The isotopic composition of ocean water is crucial in studying water masses and mixing in deep oceans, isotope mass balance in ocean water regulated by high-temperature and low-temperature hydrothermal alterations, and the exchange of water among crust-ocean-mantle reservoirs. We collected 40 water samples from Challenger Deep and the water column above at the Mariana Trench (down to 10...
Authors
Ying-Tsong Lin, Hongling Pan, Kaiwen Ta, Haiping Qi, Tyler B. Coplen, Amaelle Landais, Nanping Wu
Sample Science Traceability Matrix (SSTM) for Perseverance’s Mars sample return collection Sample Science Traceability Matrix (SSTM) for Perseverance’s Mars sample return collection
The Mars Sample Return (MSR) Campaign aims to retrieve a set of carefully selected and documented samples collected by NASA’s Perseverance rover in and around Jezero Crater on Mars and deliver this set to Earth for comprehensive laboratory analyses. To emphasize the immense scientific return of this unique collection, this work presents a Sample Science Traceability Matrix (SSTM), a...
Authors
Maria-Paz Zorzano, Andrew D. Czaja, Tanja Bosak, Audrey Bouvier, Brandi L. Carrier, Katherine L. French, Daniel P. Glavin, Andrea D. Harrington, Elisabeth M. Hausrath, Christopher D.K. Herd, Keyron Hickman-Lewis, Lisa E. Mayhew, Francis M. McCubbin, Susanne P. Schwenzer, Elliot Sefton-Nash, S. Siljeström, Justin L. Simon, Bronwyn L. Teece, Fiona Thiessen, Ben P. Weiss, the MSR Campaign Science Group, Gerhard Kminek, Lindsay E. Hays, Nicolas Dauphas, Lydia Hallis, Rachel Harris, Ernst Hauber, Laura Rodriguez, Andrew Steele, Kimberly Tait, Michael T. Thorpe, Tomo Usui, Michael Velbel, J. Vanhomwegen
Assessing flood water infiltration and storage in a restored floodplain Assessing flood water infiltration and storage in a restored floodplain
In urban areas, floodplain restoration is gaining prominence as a strategy for restoring the natural functions of floodplain ecosystems and reducing flood risk. This has spurred research into potential interactions between floodwaters, the hyporheic zone, and the floodplain aquifer. An urban restored stream in Wisconsin, USA, was used as a case study to examine four methods to estimate...
Authors
Nicholas Corson-Dosch, Faith Fitzpatrick, Paul Juckem, James D. Blount, Wonsook S. Ha
Case study of deep learning image segmentation for the purposes of rapid 2D petrographic analysis in volcanic rocks Case study of deep learning image segmentation for the purposes of rapid 2D petrographic analysis in volcanic rocks
Automation using deep learning methods is a useful alternative to manual methods of petrographic segmentation, but often requires user familiarity with coding and/or algorithms. We examine the DragonflyTM program's deep learning tools for application by users with a variety of skill levels as a method for petrographic image segmentation. An image processing methodology, bimodal image...
Authors
Brenna A. Halverson, Matthew W. Loewen, Hannah R. Dietterich, Alan Whittington
Modeling climate and hydropower influences on the movement decisions of an anadromous species Modeling climate and hydropower influences on the movement decisions of an anadromous species
In large river basins, migratory fish populations are threatened by the combination of hydropower and climate change. With river temperatures rising and hydropower development increasing globally, the longstanding monitoring programs for threatened Pacific salmon populations in the Columbia River Basin present an opportunity to study these impacts over extended time scales. We fit a...
Authors
Markus A. Min, Rebecca A. Buchanan, Mark David Scheuerell
Hatchery rearing density affects poststocking survival Hatchery rearing density affects poststocking survival
Objective Research has indicated that salmonids raised in a hatchery and stocked into the wild have lower future survival and reproductive success than wild fish. Understanding whether hatchery rearing practices affect populations after stocking can help to maximize the quality, quantity, and economic value of fish stocked for conservation and recreational purposes. The goal of our study...
Authors
Brian W. Avila, Dana L. Winkelman, Eric R. Fetherman
Planning considerations related to contamination control for the return and analysis of Martian samples Planning considerations related to contamination control for the return and analysis of Martian samples
The joint National Aeronautics and Space Administration and European Space Agency Mars Sample Return (MSR) Campaign is a proposed multi-mission effort to bring selected geological samples from Mars to Earth for the purpose of scientific investigation. Significant parts of these investigations could be affected by Earth-sourced contamination that is either misinterpreted as having a...
Authors
Alex L. Sessions, Cara Magnabosco, Hazel A. Barton, Christoph Burkhardt, Caroline Freissinet, Katherine L. French, Jason P. Dworkin, Daniel P. Glavin, Natalie Leys, Frank Maixner, Karen Olsson-Francis, Alexander J. Probst, Ghylaine Quitté, Elizabeth B. Rampe, Andrew Steele, Brandi L. Carrier, Lindsay E. Hays, Fiona Thiessen, Daniel Paardekooper, Aurore Hutzler, Andrea D. Harrington, Bronwyn L. Teece
Pre-Acadian tectonics of the eastern Orange-Milford Belt, south-central Connecticut Pre-Acadian tectonics of the eastern Orange-Milford Belt, south-central Connecticut
This excursion presents a reinterpretation of mapping and new analytical data from the eastern Orange-Milford belt (OMB) in south-central Connecticut. The OMB is a fault-bound terrane of argillites and mafic rocks of anomalously low metamorphic grade—and of poorly constrained ages and tectonic affinity—wedged between kyanite/sillimanite-grade peri- Laurentian rocks to the west and...
Authors
Ryan T. Deasy, Robert P. Wintsch, Bryan Wathen, Ryan J. McAleer, Romain Meyer, Michael J. Kunk