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Methodology to estimate South Arm dissolved salt mass and volume-weighted salinity values Methodology to estimate South Arm dissolved salt mass and volume-weighted salinity values
No abstract available.
Authors
Christine Rumsey, Scott Hynek
Effects of 6PPD, 6PPD-quinone, and potential alternatives on freshwater mussels. Effects of 6PPD, 6PPD-quinone, and potential alternatives on freshwater mussels.
N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) is an antioxidant and antiozonant widely used in tires. When 6PPD reacts with ozone, it transforms into a breakdown product called 6PPD-quinone (6PPDQ). Both compounds are currently being studied because of their high aquatic toxicity to fish, particularly coho salmon (Oncorhynchus kisutch). The Washington State Legislature...
Authors
Stephanie Gill, David J. Soucek
Tropical and subtropical coral reefs Tropical and subtropical coral reefs
Global declines in coral cover persist, owing to increasing ocean temperatures associated with climate change, continued coastal development, pollution, sedimentation, diseases and the destruction and overextraction of marine resources (through fishing and coral harvesting). These stressors have an impact on coral biodiversity, reef-associated fauna and the architectural complexity of...
Authors
Michael J. Sweet, Maria Beger, Francesca Benzoni, Emma F Camp, Javier del Campo, Kerri L. Dobson, Nohora Galvis, Mehdi Ghodrati Shojaei, Gillian Goby, Simon Harding, Danwei Huang, Viatchelav Ivanenko, William F. Precht, Zoe Richards, Buki Rinkevich, Marie-Lise Schläppy, Curt D. Storlazzi, Parviz Tavakoli-Kolour, Karenne Tun, Sancia E.T. van der Meij, Jenny Carolina Rodriguez-Villalobos, Christian R Voolstra, Brian K Walker
Coastal development Coastal development
As a focal point of global urbanization, the coastal zone faces multiple pressures from human activities, land-sea interactions and natural disasters. Over the past five years, population, communities and infrastructure in coastal zones have consistently grown, alongside gradual economic recovery. Coastal pollution has become more complex owing to climate change and the coronavirus...
Authors
Dahai Liu, Kwasi Appeaning Addo, Jahson Berhane Alemu, Louis Celliers, Piyali Chowdhury, Anya Dunham, Matthew Eliot, Alex Faerman, Yuting Hou, Olanlo Kadjogbe Abra, Jenna Lamphere, Mina Ogbanga, Aline Sbizera Martinez, Vanessa Stelzenmüller, Curt D. Storlazzi, Pascal Thoya, Karenne Tun, Ant Türkmen, Ourania Tzoraki, Wenxiu Xing
Characterization and modeling approach for planning restoration strategies in a complex basin affected by acid mine drainage Characterization and modeling approach for planning restoration strategies in a complex basin affected by acid mine drainage
The management of acid mine drainage (AMD) impacted catchments, such as the Odiel River basin, in southwestern Spain, prioritizes reclamation to meet water resources needs. Assessing water composition across its watercourses is needed to identify major AMD contributors and potentially guide remediation efforts. An equilibrium-based mixing model was developed to simulate AMD pollutant...
Authors
Jonatan Romero-Matos, Laura Sánchez-López, Rafael León, Robert L. Runkel, D. Kirk Nordstrom, Carlos R. Cánovas, Francisco Macías, José Miguel Nieto
Challenges and opportunities for Sendai framework disaster loss reporting in the United States Challenges and opportunities for Sendai framework disaster loss reporting in the United States
The Sendai Framework for Disaster Risk Reduction provides quantitative indicators for nations to measure progress in the reduction of disaster losses. The collection and analysis of disaster loss data under the Sendai Framework improves our understanding of the effectiveness of national disaster risk reduction strategies and interventions. The Sendai Framework has enhanced cooperation...
Authors
Aleeza Wilkins, Alice Pennaz, Monica Dix, Adam Smith, Daniel Karlson, Sezin Tokar, Emily Brooks
Integrating Sr isotopes, microchemistry, and genetics to reconstruct Salmonidae species and life history Integrating Sr isotopes, microchemistry, and genetics to reconstruct Salmonidae species and life history
Recent approaches to fisheries research emphasize the importance of the coproduction of knowledge in building resilient and culturally mindful fisheries management frameworks. Despite widespread recognition of the need for Indigenous knowledge and historical reference points as baseline data, archaeological data are rarely included in conservation biology research designs. Here we...
Authors
Ross Anthony Salerno, Remi Murdoch, Taylor Wilcox, Joanna Elmore, Jens Hegg, Catherine S Austin, Michael LeMoine, Jade Luckhurst, Alexandra Fraik, Molly Carney
Rhyolitic and basaltic reference materials for TC/EA analysis: Investigation of water extraction and D/H ratios Rhyolitic and basaltic reference materials for TC/EA analysis: Investigation of water extraction and D/H ratios
Increasingly, water and D/H ratios of silicic and basaltic glasses are used to investigate magmatic degassing and secondary hydration, as well as for study these parameters in the mantle and crustal magmas. The advent of the High Temperature Conversion Element Analyzer (TC/EA) continuous flow mass spectrometry made the determination of hydrogen isotopes relatively quick and precise (±0...
Authors
I.N Bindeman, M.R Hudak, J.P Palandri, Haiping Qi, R Milovsky, R.L Hervig, M.R Perfit
Upper Triassic igneous rocks of the southern Kenai Peninsula, Alaska – Prelude to Early Jurassic subduction along the western Wrangellia composite terrane margin Upper Triassic igneous rocks of the southern Kenai Peninsula, Alaska – Prelude to Early Jurassic subduction along the western Wrangellia composite terrane margin
New U–Pb zircon geochronology identifies a latest Triassic (ca 214–201 Ma) igneous suite of tuff, hypabyssal dikes, and a pluton on the southern Kenai Peninsula, Alaska. The igneous suite was emplaced within Upper Triassic sedimentary rocks along the southern margin of Western Wrangellia, the western-most fragment of the Wrangellia composite terrane. The igneous rocks range from mafic...
Authors
Travis L. Hudson, Frederic H. Wilson, Paul O’Sullivan
Utilizing hydrophones to detect streambed mobilization in the Wild and Scenic reach of the Rio Chama Utilizing hydrophones to detect streambed mobilization in the Wild and Scenic reach of the Rio Chama
This paper describes a study that deployed underwater acoustic sensors (hydrophones) to detect streambed mobilization in the Wild and Scenic reach of the Rio Chama, New Mexico. Fine sediment accumulation in the gravel‑cobble bed affects brown trout spawning habitat, and understanding incipient motion thresholds is essential for planning effective environmental flushing flows released...
Authors
Rebecca Braz, Mathieu D. Marineau, Christopher P. Ely
Home ranges of economically important reef fishes at North Carolina artificial reefs Home ranges of economically important reef fishes at North Carolina artificial reefs
Home range is a vital component to understanding animal ecology and can vary with factors like species, body size, and habitat. Artificial reefs are increasingly used to supplement or enhance habitat for reef fish. Quantifying reef fish home range sizes and the factors affecting home ranges is thus critical to understanding the efficacy of artificial reefs to sustain communities that...
Authors
Ryan M. Tharp, Nathan J. Hostetter, Jeffrey A. Buckel
Capturing the uncertainty of seismicity observations in earthquake rate estimates: Implications for probabilistic seismic hazard analysis and the USGS National Seismic Hazard Model Capturing the uncertainty of seismicity observations in earthquake rate estimates: Implications for probabilistic seismic hazard analysis and the USGS National Seismic Hazard Model
The rate of earthquakes in a region is a fundamental input to Probabilistic Seismic Hazard Analysis. We present a Monte Carlo method for computing that rate from seismicity catalogs while including a range of data and analysis uncertainties. This method is applied to regions for which the b value is assumed to be spatially invariant. Each region is broken down into epochs for which each...
Authors
Andrew J. Michael, Andrea L. Llenos