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Pandemics And Partisanship: The Impact Of Political Identity On Public Health Responses, Andy Tuholski

Midwest Social Sciences Journal

This literature review examines the intersection of political partisanship and public health responses during pandemics, with a focus on the COVID-19 pandemic in the United States. Historically, pandemics such as the Venetian plague (1575-1577) and the Great Plague of London (1665-1666) have elicited responses driven by socioeconomic and health factors. In contrast, the COVID-19 pandemic in the U.S. was distinctly shaped by pre-existing political affiliations, particularly between conservative and liberal factions. Applying Social Identity Theory (SIT), this review explores how group identity and partisanship influenced pandemic-related behaviors and attitudes. Empirical evidence indicates that Republican-leaning states experienced higher COVID-19 mortality rates, …

Space Agriculture, Biotechnology, And Terraforming: Rethinking The Paradigm Of Harmful Contamination, Francesca Giannoni-Crystal

Journal of Air Law and Commerce

As humanity transitions from sporadic exploratory space missions to permanent settlements on celestial bodies (like the Moon or Mars), agriculture biotechnology, and, potentially, terraforming projects will be essential for establishing self-sustaining settlements.

These activities raise critical issues concerning the interpretation of the principle of harmful contamination under Article IX of the Outer Space Treaty (OST) and its implementation through the Committee on Space Research’s Policy on Planetary Protection (COSPAR Policy) referred together in this article as the “Planetary Protection Framework,” which is primarily oriented toward exploration with scientific integrity rather than permanent habitation.

The challenge lies in the fact that …

Maternal Incarceration, Adolescent Delinquency, And Siblings, Tracey L. Woodard

Midwest Social Sciences Journal

Researchers have estimated that approximately 2.7 million children in the United States have a parent in jail or prison. Since 1991, the number of children with a father in prison grew by 77%, while the number of children with a mother in prison more than doubled (131%). In examining the consequences of maternal incarceration on children, many researchers have found an association between negative child outcomes and maternal incarceration. However, not all research has produced the same conclusions, thus yielding heterogeneous findings. It is essential to understand the factors that may explain the variation in outcomes of children experiencing maternal …

Psychophysiological Responses To An Objectified Environment In College-Aged Females, Urska Dobersek, Richard A. Bennett, Sarah E. Siebers, Laurel A. Standiford Reyes

Midwest Social Sciences Journal

Objectification and its associated negative psychological consequences of self-objectification are well-established. Specifically, internalization of an observer’s perspective can lead to habitual body monitoring, negative psychological consequences, and mental health risks. Nevertheless, comparatively few studies examined physiological responses to an objectified environment. To remedy this gap, we explored the effects of an objectified environment on stress levels assessed via salivary cortisol in a single-blind experimental study of 34 undergraduate female students (M_age = 18.62, SD = 0.74). State self-objectification was manipulated by participants wearing tight, revealing exercise clothing (experimental condition; n =16) or baggy exercise attire (control condition; …

Institutionalized Ostracism, Danieli Evans

Michigan Journal of Race and Law

Belonging is a fundamental need, like food or water. Hundreds of social psychology studies find that people who are ostracized (excluded, rejected, or ignored) experience severe pain and suffering. Ostracism threatens basic needs, triggers the same neurocognitive processing system as physical pain, and impairs functioning. Furthermore, ostracized people may cope in ways that beget “deviant” labeling and further ostracism.

Belonging and ostracism are prevalent themes in social psychology research, but these constructs have received relatively little attention in law. This Article begins to explore the implications of this research for law. I make three contributions: First, I name and describe …

Mental Health Trends Among African American High School Students, Alexis Heard

Theses and Dissertations

Adolescent mental health is a major public health issue in the U.S., with African American high school students facing a rapidly worsening crisis. While all youth show increasing rates of depression, anxiety, and suicidality, African American adolescents are at greater risk due to systemic racism, socioeconomic inequality, community violence, and limited access to culturally responsive care. Few national studies have examined mental health trends among this group. This study (1) examines 2011–2021 trends in persistent sadness/hopelessness, suicidal ideation, suicide planning, and suicide attempts among African American high school students; (2) explores gender differences; and (3) compares these patterns to national …

The Relationship Of Preschool Variables To Kindergarten Early Literacy Skills, Michele Davis Thomason

Theses and Dissertations

This dissertation examines the impact of Pre-K experiences on kindergarten early literacy skills in Alabama. A convergent parallel mixed-methods research design was utilized to analyze assessment data from My Teaching Strategies AlaKiDS and Renaissance STAR Early Literacy for kindergarten students in a rural Alabama district. The students were divided into three groups for comparison: students who attended Alabama First Class Pre-K, those in private programs using the Abeka curriculum, and students with no formal Pre-K experience. The dissertation utilized Vygotsky’s constructivist theory to assess the influence of early educational environments on the cognitive development through scaffolding and the Zone of …

Characterization Of Sarcoidosis At A Combined Rheumatology-Pulmonary Clinic, Megan Schermerhorn, Md, Julianna Desmarais, Md

Books, Presentations, Posters, Etc.

Introduction: Sarcoidosis is a disease of unknown etiology characterized by formation of small clusters of inflammatory cells that form granulomas. Heterogenous and typically involves multiple organ systems with varying degrees of morbidity and mortality. Poorly defined treatment landscape. The purpose of this study was to characterize a cohort of sarcoidosis patients in a combined rheumatology-pulmonary clinic according to organ involvement and treatment over 5 years. Discussion: •Single center academic study of a that is the first of its kind. •Data highlights complexity and heterogeneity of patients with sarcoidosis and utility of combined rheumatology – pulmonary clinic. •65.3% of patients exhibited …

Investigation Of Hydrogen Gas Production And Motility In Δselab And Δfdhf Mutants Of Clostridioides Difficile, Ria D. Gupta

Honors Undergraduate Theses

Clostridioides difficile is a Gram-positive, spore-forming, anaerobic bacterium and the leading cause of antibiotic-associated diarrhea worldwide. During infection, antibiotic-induced disruption of the gut microbiota allows C. difficile to colonize and proliferate. Motility, enabled by flagella, is an important factor in colonization and may be influenced by metabolic activity. Recent experiments have observed gas production during C. difficile motility assays, but the biochemical basis of this phenomenon remains unknown. Because gas formation in other bacteria such as E. coli involves the formate hydrogenlyase complex and the enzyme formate dehydrogenase (FDH), we hypothesize that C. difficile gas production under motility conditions is …

Exploring The Link Between Relationship Status And Emotion Regulation Strategy Use, Abigail A. Echols

Honors Undergraduate Theses

Romantic relationships affect many areas of life and are important sources of interpersonal emotion regulation, yet little research has investigated whether relationship status influences emotion regulation strategy use and emotion dysregulation. Considering that the types of emotion regulation strategies individuals use significantly affect their well-being, understanding the link between relationship status and emotion regulation strategy use is important. This study compared single, partnered, and recently separated individuals’ emotion dysregulation and use of eleven intrapersonal and eleven interpersonal emotion regulation strategies in general (i.e., trait) and in a specific situation (i.e., state) through retrospective self-report scales and an autobiographical writing task. …

Developing New Methods For Quantifying Karenia Brevis In Florida Waters, Antonia N. Ferguson

Honors Undergraduate Theses

Harmful Algal Blooms (HABs), known as red tides, have long impacted Florida’s coastal ecosystems. Caused by the toxic dinoflagellate Karenia brevis, these blooms are named based on the characteristic red discoloration of coastal waters. Negative impacts of K. brevis range from fish kills, neurotoxic shellfish poisoning, and respiratory irritation in humans. Traditionally, K. brevis monitoring has been conducted weekly by Florida Fish and Wildlife Conservation Commission’s Fish and Wildlife Research Institute (FWC-FWRI) using light microscopy for cell identification and enumeration of collected water samples. However, this method is time-consuming, costly, and relies on deep taxonomic expertise for proper cell …

Salinity Effects On Cu(Ii) Bioremediation By Chlamydomonas Reinhardtii Microalgae, Jennifer Hughes

Honors Undergraduate Theses

Microalgae offer a sustainable approach to wastewater treatment by removing pollutants such as excess nutrients, CO₂, and heavy metals. Among various species, Chlamydomonas reinhardtii shows strong potential in removing Cu(II) ions from wastewater. In addition, salinity stress in C. reinhardtii has been linked to morphological and metabolic changes that enhance lipid and phytochemical production. While salinity stress has been studied for enhancing biofuel production, its impact on microalgal removal of heavy metals, particularly Cu(II), remains largely unexplored. Understanding how varying salinity conditions affect both algal growth and the efficiency of Cu(II) remediation could provide critical insights for improving integrated wastewater …

Measuring Personality And Animal Treatment Attitudes With The Pet Scale, Zackery J. Hilton

Honors Undergraduate Theses

Previous research has looked at the association between personality traits and the proclivity, or history, of committing acts that are characterized as animal abuse or animal cruelty. Much research has also found that individuals who exhibit this type of behavior towards animals also tend to exhibit similar behavior towards other individuals, mainly in the form of domestic or child abuse. Previous studies have measured animal abuse using very explicit and extreme criteria, using acts that are without question blatant abuse or torture; however, there is some grey area where many may argue whether certain acts should be considered abuse, which …

Ultra-Plex Immunofluorescence Stainings To Classify Precancerous Lesions For The Stratification Of Their Risk For Progression Toward Esophageal Squamous Cell Carcinoma, Arthi Jaishankar

Honors Undergraduate Theses

Esophageal squamous cell carcinoma (ESCC) is the most common and fatal type of esophageal cancer since it is usually only diagnosed at a later stage. Similar to other cancers, ESCC arises through precursor lesions which are known as dysplasias and occurs when cells have uncontrolled growth and changes to both the tissue structure and gene expression. Clinical intervention at the precancerous stage would greatly improve survival rates, however predicting which lesions will actually become malignant continues to be a challenge. The current traditional method for ESCC diagnosis is hematoxylin and eosin (H&E) histopathology, but it is not sufficient for predicting …

A Century Of Sediment Metal Contamination Of Mar Menor, Europe's Largest Saltwater Lagoon, Irene Alorda-Montiel, Valentí Rodellas, Ariane Arias-Ortiz, Albert Palanques, Andrea G. Bravo, Júlia Rodriguez-Puig, Aaron Alorda-Kleinglass, Carlos Green-Ruiz, Marc Diego-Feliu, Pere Masqué, Javier Gilabert, Jordi Garcia-Orellana

OES Faculty Publications

Coastal enclosed ecosystems, such as lagoons, are vulnerable to anthropogenic impacts because they favor the accumulation of contaminants from the surrounding watersheds, particularly in their sediments. Europe's largest saltwater lagoon, the Mar Menor (SE, Iberian Peninsula), is a highly impacted ecosystem and the first in the continent to be granted personhood rights. Based on a high-resolution spatial and temporal dataset, we present the historical reconstruction of metal contamination in this ecosystem during the last century. Our results highlight that sediment metal contamination has been mainly driven by the development of the mining industry in the nearby Sierra Minera de Cartagena-La …

Optimizing An Image Analysis Protocol For Ocean Particles In Focused Shadowgraph Imaging Systems, Huanqing Huang, Alexander B. Bochdansky

OES Faculty Publications

A variety of imaging systems are in use in oceanographic surveys, and the opto-mechanical configurations have become highly sophisticated. However, much less consideration has been given to the accurate reconstruction of imaging data. To improve reconstruction of particles captured by Focused Shadowgraph Imaging (FoSI)—a system that excels at visualizing low-optical-density objects, we developed a novel object detection algorithm to process images with a resolution of ~ 12 μm per pixel. Suggested improvements to conventional edge-detection methods are relatively simple and time-efficient, and more accurately render the sizes and shapes of small particles ranging from 24 to 500 μm. In addition, …

The Effect Of Temperature And Salinity On Margalefidinium Polykrikoides Group Iii Va, Usa Strain Growth, Eduardo Pérez-Vega, Margaret R. Mulholland, Katherine E. Crider, Kimberly E. Powell, P. Dreux Chappell, Alexander Bochdansky

OES Faculty Publications

Margalefidinium polykrikoides is a cosmopolitan dinoflagellate that blooms in coastal waters. Despite genomic evidence that it belongs to Group III and so closely related to isolates from Puerto Rico, Malaysia, North America, and Central America, M. polykrikoides blooms in the Chesapeake Bay at warmer temperatures and lower salinities than in coastal ecosystems occupied by its closest relatives. In this study, the effect of temperature and salinity on the growth rate and total cell yield of an M. polykrikoides VA culture isolate were examined and compared with environmental observations made during M. polykrikoides blooms in the Chesapeake Bay. M. polykrikoides group …

From Wind To Whales: Potential Hydrodynamic Impacts Of Offshore Wind Energy On Nantucket Shoals Regional Ecology, Eileen E. Hofmann, Jeffrey R. Carpenter, Qin J. Chen, Josh T. Kohut, Richard L. Merrick, Erin L. Meyer-Gutbrod, Douglas P. Nowacek, Kaustubha Raghukumar, Nicholas R. Record, Kelly Oskvig

OES Faculty Publications

The National Academy of Sciences, Engineering, and Medicine convened a committee in June 2023 to assess the potential hydrodynamic and ecological impacts from offshore wind energy development in the Nantucket Shoals region, with particular attention to impacts on the critically endangered North Atlantic right whale (Eubalaena glacialis) that forages on zooplankton aggregations in the region. The assessment suggested that the effects of offshore wind energy development will be difficult to distinguish from the effects of natural variability and climate change in this region. The Consensus Study Report recommendations highlight observational and modeling studies that will advance understanding of …

Ensemble Machine Learning Approaches For Bathymetry Estimation In Multi-Spectral Images, Kazi A. Islam, Omar Abdul-Hassan, Hongfang Zhang, Victoria Hill, Blake Schaeffer, Richard Zimmerman, Jiang Li

OES Faculty Publications

Traditional bathymetry measures require a large number of human hours, and many bathymetry records are obsolete or missing. Automated measures of bathymetry would reduce costs and increase accessibility for research and applications. In this paper, we optimized a recent machine learning model, named CatBoostOpt, to estimate bathymetry based on high-resolution WorldView-2 (WV-2) multi-spectral optical satellite images. CatBoostOpt was demonstrated across the Florida Big Bend coastline, where the model learned correlations between in situ sound Navigation and Ranging (Sonar) bathymetry measurements and the corresponding multi-spectral reflectance values in WV-2 images to map bathymetry. We evaluated three different feature transformations as inputs …

Microbial Mats In Dinosaur Ichnocoenoses, Nora Noffke, Paul C. Murphey, Roger C. Buntin, Martin G. Lockley

OES Faculty Publications

Until now, the significance of microbial mats in preservation of dinosaur tracks and in reconstructing the palaeoenvironment in which dinosaurs roamed was rarely studied. Dinosaur tracks are commonly found close to ancient aquatic bodies where moist sediment had once allowed footstep registration. At such sites, epibenthic or endobenthic microbial mats may have developed as well and may have led to exquisite track preservation. Microbial mats in coastal, lacustrine or flood plain environments cause ‘microbially induced sedimentary structures—MISS’, which are micobialites found in sandy or evaporitic settings. The microbial structures record environmental parameters including meteorological conditions that existed at the time …

Successful Eastern Oyster (Crassostrea Virginica) Recruitment On Intertidal Artificial Substrates In Virginia, Usa, Rochelle D. Seitz, Kathleen E. Knick, Emily Suchonic, Amanda Pysher

OES Faculty Publications

Declines of eastern oyster (Crassostrea virginica) populations and scarcity of natural oyster shell necessitate quantifying the effectiveness of artificial oyster reef substrates over varying environmental conditions. Oyster castles are often used in intertidal areas with moderate wave energy; however, new concrete, natural-looking substrates, GROW Reef Tiles, are now available. Eastern oyster recruitment and size on oyster castles (OC) and GROW Reef Tiles (GT), with 27% higher surface area on OC, were assessed three times over 25 months in locations with varying salinity. Four sites in the Chesapeake Bay region were examined: Cherrystone Inlet, Mockhorn Bay, Elizabeth River, and …

High Antarctic Coastal Productivity In Polynyas Revealed By Considering Remote Sensing Ice-Adjacency Effects, Hilde Oliver, Jessica S. Turner, Alexandre Castagna, Henry Houskeeper, Heidi Dierssen

OES Faculty Publications

Ocean color-based estimates of Antarctic net primary productivity (NPP) have indicated low nearshore productivity in ice-adjacent waters, contrasting with coupled physical–biogeochemical models. To understand this discrepancy, we assessed satellite records of polynya NPP by comparing field data with two satellite imagery datasets derived using different processing schemes. Our results indicate historical underestimation of chlorophyll a for imagery obtained using default atmospheric correction processing within approximately 100 km of ice-covered coastlines due to adjacency effects. Using radiative transfer modeling, we find that biases in ocean color polynya observations due to adjacency effects correspond to the high albedo of ice and snow. …

Elucidating The Role Of Marine Benthic Carbon In A Changing World, Cristina Schultz, Jessica Y. Luo, Damian C. Brady, Robinson W. Fulwiler, Matthew H. Long, Colleen M. Petrik, Jeremy M. Testa, Heather M. Benway, David Burdige, Marta M. Cecchetto, Isa Elegbede, Natalya Evans, Alexandra Frenzel, Kayla Gillen, Lisa C. Herbert, Heidi K. Hirsh, Gennadi Lessin, Lisa Levin, Kanchan Maiti, Sairah Malkin, Sarah L. Mincks, Stanley Nmor, Anh Pham, James Pinckney, Christophe Rabouille, Shaily Rahman, Subhadeep Rakshit, Nicholas E. Ray, Dalton K. Sasaki, Samantha A. Siedlecki, Christopher Somes, Aron Stubbins, Olivier Sulpis, Cleuza Trevisan, Yiyang Xu, Hang Yin

OES Faculty Publications

The ocean plays a major role in controlling atmospheric carbon at decadal to millennial timescales, with benthic carbon representing the only geologic-scale storage of oceanic carbon. Despite its importance, detailed benthic ocean observations are limited and representation of the benthic carbon cycle in ocean and Earth system models (ESMs) is mostly empirical with little prognostic capacity, which hinders our ability to properly understand the long-term evolution of the carbon cycle and climate change-related feedbacks. The Benthic Ecosystem and Carbon Synthesis (BECS) working group, with the support of the US Ocean Carbon & Biogeochemistry Program (OCB), identified key challenges limiting our …

Yucatan Hurricane Activity Highlights Common Era Tropical Cyclone Dipole, Richard M. Sullivan, Peter J. Van Hengstum, Elizabeth J. Wallace, Sloan Coats, Jeffrey P. Donnelly, Robert Korty, Shawna N. Little, Martin G. Maas Vargas, Luis Mejia-Ortiz, Eduard G. Reinhardt, Courtney Schumacher, Anne E. Tamalavage, Tyler S. Winkler

OES Faculty Publications

Tropical cyclone (TC) impacts along the western Atlantic and Caribbean margin are not spatially uniform. Proxy based reconstructions of Common Era TC activity highlight this non-uniform distribution at centennial-millennial timescales. However, the sparse geographic scope of these reconstructions impedes our assessment of TC landfalls across broader spatial domains. This work presents a compilation of new and existing TC reconstructions from the Yucatan Peninsula for comparison with a contemporaneous compilation from New England, showing that these regions occupy distal nodes of a low-frequency TC dipole. Increased Yucatan (New England) storminess is closely linked to intervals of Northern Hemisphere warming (cooling) and …

Unveiling Hidden Mercury And Methylmercury Sources: The Role Of Submarine Groundwater Discharge In Coastal Lagoons, Céline Lavergne, Júlia Rodriguez-Puig, Clara Ruiz-González, Maria Montero-Curiel, Gemma Casas, Daniel Romano-Gude, Irene Alorda-Montiel, Júlia Dordal-Soriano, Aaron Alorda-Kleinglass, Marc Diego-Feliu, Javier Gilabert, Alex Campillo-De La Maza, Cristina Romera-Castillo, Natalia Torres-Rodriguez, Lars-Eric Heimbürger-Boavida, Jordi Garcia-Orellana, Valenti Rodellas, Andrea G. Bravo

OES Faculty Publications

Mercury loads from Submarine Groundwater Discharge (SGD) may represent an overlooked source of methylmercury (MeHg) to the ocean, affecting human and ecosystem health. The SGD process involves the flow of fresh, saline, or mixed groundwater from coastal aquifers into the oceans classified in different components. Existing studies rarely report the fluxes supplied by the different SGD components; therefore, the relevance of SGD as a source of mercury remains unclear. We aimed to quantify SGD-driven mercury/methylmercury fluxes to the coast, focusing on the largest coastal lagoon in the western Mediterranean. We measured total dissolved mercury and MeHg in surficial and porewaters …

Dynamics Of Water Mass Exchange Across The Central Ross Sea Slope, Yuanjie Chen, Zhaoru Zhang, Pasquale Castagno, Xianxian Han, Michael S. Dinniman, Zhiqiang Liu, Chuning Wang

OES Faculty Publications

The central Ross Sea slope (CRSS) is a critical region for water mass exchange, significantly influencing the physical and biological processes of the Ross Sea shelf and the global overturning circulation. This study utilizes a high-resolution ocean-ice shelf-sea ice coupled model to investigate the mechanisms driving this exchange, involving the onshore transport of circumpolar deep water (CDW) and the offshore transport of dense shelf water (DSW). Combining numerical simulations and mooring observations, this work reveals high-frequency oscillations with a periodicity of ∼32 hr in CDW transport induced by Topographic Rossby Waves and DSW transport induced by cyclonic eddies. These findings …

Organic Geochemical Evidence For Life In Archean Rocks Identified By Pyrolysis-Gc-Ms And Supervised Machine Learning, Michael L. Wong, Anirudh Prabhu, Conel O'D. Alexander, H. James Cleaves Ii, George D. Cody, Grethe Hystad, Marko Bermanec, Wouter Bleeker, C. Kevin Boyce, Andrea Corpolongo, Andrew D. Czaja, Souvik Das, Robert R. Gaines, Daniel D. Gregory, John A. Jaszczak, Emmanuelle J. Javaux, Jaganmoy Jodder, Andrew H. Knoll, Martin Van Kranendonk, Katie M. Maloney, Nora Noffke, Robert Rainbird, Emersyn Slaughter, Eva E. Stüeken, Roger E. Summons, Frances Westall, Jasmina Wiemann, Shuhai Xiao, Robert M. Hazen

OES Faculty Publications

Throughout Earth’s history, organic molecules from both abiogenic and biogenic sources have been buried in sedimentary rocks. Most of these organic molecules have been significantly altered by geologic processes through deep time. Nonetheless, the nature and distribution of those ancient fragmentary organic remains have the potential to reveal diagnostic biomolecular information after billions of years of burial. Here, we analyzed 406 fossil, modern biological, meteoritic, and synthetic samples using pyrolysis gas chromatography and mass spectrometry. We explored these analytical data via supervised machine-learning methods to discriminate samples of biogenic vs. abiogenic origin, plant vs. animal phylogenetic affinity, and photosynthetic vs. …

Common Era Time-Transgressive Forcing Of Caribbean Water Balance, Peter J. Van Hengstum, Shawna N. Little, Richard M. Sullivan, Jeffrey P. Donnelly, Tyler S. Winkler, Anne E. Tamalavage, Patricia A. Beddows, Patricia L. Fall, Jiabi Du, Kaustubh Thirumalai, Nancy A. Albury, Sloan Coats

OES Faculty Publications

Tropical North Atlantic sea surface temperatures and low-latitude rainfall covary, but prehistoric subtropical rainfall records are often misaligned. Here, a submarine groundwater discharge record from the northern Bahamas archives regional water balance in the northeastern Atlantic Warm Pool. We compare the reconstruction to the tropical North Atlantic seasonal temperature gradient, which can help inform how northeastern Caribbean rainy seasons are influenced by the Atlantic Warm Pool. A positive water balance in the northern Bahamas aligned with a ~0.9 °C seasonal temperature gradient from 0 to 950 CE, with both covarying on multi-decadal timescales. Aridity began at ~950 CE when a …

Organic Carbon Decay Mediated By A Mesopelagic Microbial Community: The Relevance Of Carbon Pools And Broad Biochemical Composition, Noah J. Craft, Alexander B. Bochdansky

OES Faculty Publications

The mesopelagic zone is a site of strong microbially driven particle attenuation with depth and thus plays a crucial role in controlling the transfer efficiency of the ocean's biological pump. However, little quantitative information exists on the dependency of decay processes on the source material. Here we followed the decay of ¹⁴C-labeled dead particulate organic carbon (POC) and dissolved organic carbon (DOC) from three different phytoplankton species, and two incubations of live diatoms, in mesopelagic water over 3 months. Commonly used first-order kinetics failed to adequately describe the decay of organic material as rate constants varied from day to day. …

The Relative Contribution Of Deep And Shallow Benthic Sources To Iron Supply In The Ross Sea, With Specific Emphasis On The Ross Bank, Blair J.W. Greenan, Michael S. Dinniman, Dennis J. Mcgillicuddy Jr., Peter N. Sedwick, Stefanie L. Mack, Walker O. Smith Jr.

OES Faculty Publications

Summer primary productivity in the Ross Sea is limited by the availability of dissolved iron (DFe) in the euphotic zone. Previous studies have suggested that benthic sources dominate the supply of DFe to the upper water column in the southern Ross Sea polynya. The purpose of this study is to investigate whether these benthic sources are derived from shallow banks or deeper areas of the continental shelf. Our study combines analysis of in situ observations near Ross Bank with a physical ocean model simulation in an overlapping summertime period to investigate the vertical supply of DFe. Two passive tracer dyes …