- Coral and Marine Ecosystems Studies
- Coastal wetland ecosystem dynamics
- Aquaculture disease management and microbiota
- Parasite Biology and Host Interactions
- Nematode management and characterization studies
- Plant Pathogens and Fungal Diseases
- Hydrocarbon exploration and reservoir analysis
- Insect symbiosis and bacterial influences
- Atmospheric and Environmental Gas Dynamics
- Genetic diversity and population structure
- Pharmaceutical and Antibiotic Environmental Impacts
- Genomics and Phylogenetic Studies
- Plant Parasitism and Resistance
- Geochemistry and Geologic Mapping
- Plant Pathogenic Bacteria Studies
- Groundwater flow and contamination studies
- Advanced Chemical Sensor Technologies
- CO2 Sequestration and Geologic Interactions
- Essential Oils and Antimicrobial Activity
- Geochemistry and Elemental Analysis
- Genetic and Environmental Crop Studies
- Radioactive element chemistry and processing
Arizona State University
2024
Oregon State University
2019-2023
Mote Marine Laboratory
2022-2023
Rutgers Sexual and Reproductive Health and Rights
2022
Rice University
2022
United States Geological Survey
2016-2018
Haverford College
2014
The development of unconventional oil and gas (UOG) resources has rapidly increased in recent years; however, the environmental impacts risks are poorly understood. A single well can generate millions liters wastewater, representing a mixture formation brine injected hydraulic fracturing fluids. One most common methods for wastewater disposal is underground injection; we assessing potential this method through an intensive, interdisciplinary study at injection facility West Virginia. In June...
Abstract Bacterial symbionts are integral to the health and homeostasis of invertebrate hosts. Notably, members Rickettsiales genus Wolbachia influence several aspects fitness evolution their terrestrial hosts, but few analogous partnerships have been found in marine systems. We report here genome, phylogenetics, biogeography a ubiquitous novel species that primarily associates with organisms. previously showed this bacterium was scleractinian corals, responds nutrient exposure, is...
Holobiont phenotype results from a combination of host and symbiont genotypes as well prevailing environmental conditions that alter the relationships among symbiotic members. Corals exemplify this concept, where shifts in algal community can lead to some corals becoming more or less thermally tolerant. Despite linkage between coral bleaching disease, roles bacteria holobiont resistance susceptibility disease remains understood. This study thus characterizes microbiome disease-resistant...
Nutrient pollution is linked to coral disease susceptibility and severity, but the mechanism behind this effect remains underexplored. A recently identified bacterial species, 'Ca. Aquarickettsia rohweri,' hypothesized parasitize Caribbean staghorn coral, Acropora cervicornis, leading reduced growth increased susceptibility. rohweri assimilate host metabolites ATP was previously demonstrated be highly nutrient-responsive. As nutrient enrichment a pervasive issue in Caribbean, study examined...
Abstract Viruses can affect coral health by infecting their symbiotic dinoflagellate partners (Symbiodiniaceae). Yet, viral dynamics in colonies exposed to environmental stress have not been studied at the reef scale, particularly within individual lineages. We sequenced major capsid protein (mcp) gene of positive-sense single-stranded RNA viruses known infect dinoflagellates (‘dinoRNAVs’) analyze reef-building coral, Porites lobata. repeatedly sampled 54 harboring Cladocopium C15...
The symbiont "Candidatus Aquarickettsia rohweri" infects a diversity of aquatic hosts. In the threatened Caribbean coral, Acropora cervicornis, proliferates in response to increased nutrient exposure, resulting suppressed growth and disease susceptibility mortality coral. This study evaluated extent, as well ecology evolution infecting corals, Ac. palmata their hybrid ("Ac. prolifera"). was found all acroporids, with coral host geographic location impacting infection magnitude. Phylogenomic...
Effective coral restoration must include comprehensive investigations of the targeted community that consider all aspects holobiont—the host, symbiotic algae, and microbiome. For example, richness composition microorganisms associated with corals may be indicative corals’ health status thus help guide activities. Potential differences in microbiomes due to host genetics, environmental condition, or geographic location, then influence outplant success. The objective present study was...
ABSTRACT The development of unconventional oil and gas (UOG) resources results in the production large volumes wastewater containing a complex mixture hydraulic fracturing chemical additives components from formation. release these wastewaters into environment poses potential risks that are poorly understood. Microbial communities stream sediments form base food chain may serve as sentinels for changes health. Iron-reducing organisms have been shown to play role biodegradation wide range...
Abstract Chronically high levels of inorganic nutrients have been documented in Florida’s coral reefs and are linked to increased prevalence severity bleaching disease. Naturally disease-resistant genotypes the staghorn Acropora cervicornis rare, it is unknown whether prolonged exposure acute or chronic nutrient will reduce disease tolerance these genotypes. Recently, relative abundance bacterial genus Aquarickettsia was identified as a significant indicator susceptibility A. , this species...
Abstract The aquatic symbiont “ Candidatus Aquarickettsia rohweri ” infects a diversity of non-bilaterian metazoan phyla. In the threatened coral Acropora cervicornis , proliferates in response to increased nutrient exposure, resulting suppressed growth and disease susceptibility mortality. This study evaluated extent, as well ecology evolution infecting Caribbean corals: Ac. palmata their hybrid (‘ prolifera ’). bacterial parasite was found all acroporids, with host sampling location...
Abstract One way viruses can affect coral health is by infecting their symbiotic dinoflagellate partners (Symbiodiniaceae). Yet, viral dynamics in colonies exposed to environmental stress have not been studied at the reef scale, particularly within individual lineages. We sequenced major capsid protein ( mcp ) gene of positive-sense single-stranded RNA known infect dinoflagellates (‘dinoRNAVs’) analyze reef-building coral, Porites lobata . repeatedly sampled 54 harboring Cladocopium C15...
<title>Abstract</title> Background As coral diseases become more prevalent and frequent, the need for new intervention strategies also increases to counteract rapid spread of disease. Recent advances in disease mitigation have resulted increased use antibiotics on reefs, as their application may halt lesion progression. Although efficacious, consequences deliberate microbiome manipulation resulting from antibiotic administration are less well-understood – especially non-diseased corals that...
Introduction Though bacterial pathogens and parasites can compromise coral health, microbiome research increasingly suggests a beneficial role for species living in tissue mucus. Recent studies suggest the application of targeted antibiotic treatments, while inhibiting growth harmful bacteria, may have unintended persistent impacts on health. Land-based nurseries use antiseptic treatments such as Lugol’s solution KoralMD™ dip to reduce infectious agents part restoration best practices. These...
Abstract Ocean warming, disease, and pollution contributed to global declines in coral abundances diversity. In the Caribbean, corals previously dominated reefs, providing an architectural framework for diverse ecological habitats, but have significantly declined due infectious microbial disease. Key species like Acropora cervicornis , are now considered critically endangered, prompting researchers focus on scientific endeavors identify factors that influence disease resistance resilience....