Conservation and population genetics of aquatic organisms with emphasis on large pelagic fishes; molecular systematics and phylogenetics and biogeography of fishes.
Biogeochemical fluxes of dissolved organic matter (DOM) in the Arctic Ocean Land - ocean transport of carbon and nitrogen in light of environmental change in the Arctic Identification of the chemical composition of DOM and its use as a tracer for water masses.
Mixing processes and turbulence in the surface and bottom boundary layers in the oceans and lakes. Physical Oceanography of coastal regions. Model-aided analysis of the response of lakes/coastal ocean to external forcing.
Coastal and wetlands community ecology in salt marshes, tidal mudflats, and seagrass beds, with particular focus on changes in trophic structure following habitat restoration, nutrient enrichment, and other human disturbances.
Molecular microbial ecology; Molecular systematics and phylogeny of prokaryotes; Biogeography of prokaryotic populations; Role of bacteria in biogeochemical processes.
Coastal environmental planning, natural hazards mitigation, spatial analysis, dispute resolution.
Physiology & behavior of marine birds and mammals, especially species inhabiting polar waters.
Quantification of the record of marine sedimentary processes using a combination of sediment analyses, short lived radio isotopes and high resolution marine geophysics.
Evolutionary genetics, molecular systematics, and speciation in marine fishes, especially those found on coral reefs
The impacts extreme events like hurricanes have on our coastlines; the complex physical processes involved in the destruction, but also the potential recovery of beaches and dunes; utilizes laboratory experiments, field measurements and process based numerical modeling to gain a better understanding of the complicated sediment transport phenomena that govern dune destruction
Structure-function relationship studies of protein systems using all-atom and coarse-grain molecular dynamics simulations, Testing and validation of coarse-grain forcefield for proteins, Computational studies of the membrane translocation ability of heteroaromatic foldamers and its implications in drug delivery, Understanding conformational preferences of aromatic oligoamide foldamers using theoretical methods
GIS, Spatial Analysis/Statistics, Natural Hazard Mitigation & Policy, Environmental Planning & Policy
Biodiversity, evolution and conservation of animals inhabiting marine caves; application of scientific and technical diving to provide access to otherwise inaccessible portions of extensive cave systems.
Paleoceanography, Arctic Ocean, climate change, Black Sea, and accelerator mass spectrometry and radiocarbon dating
Interactions between marine biogeochemical cycles, ocean chemistry and the climate system, linkages between terrestrial and marine C and N cycles, northern peatlands as major players in soil and atmospheric carbon cycling, dissolved organic matter compositions in groundwater. biodegradation of contaminants in natural ecosystems
Correlated-electron models for molecules & polymers; many-body valence-bond theory; chemical graph theory; carbon clusters, nano-tubes, graphenes, & their decorations; polymer statistics and excluded volume; group-theoretic methods in chemistry and physics
Coastal Marine and Aquatic Birds.
Chemistry education; organic compounds for novel applications
Zooplankton processes in the ocean, population dynamics and interactions of marine fishes, quantitative fisheries research, statistical and numerical ecosystem modeling.
Impact of watershed disturbance on cycling of trace metals and organic matter. Tracers of combustion byproducts in environmental media. Biogeochemical cycling of organic matter in soils and aquatic environments. Development and direction of cross disciplinary curricula within the context of university core science courses and environmental studies programs.
Research interests focus on the function and evolution of vertebrate feeding and digestive systems, the musculoskeletal sys-tem, and associated sensory and neurobiology
Physical Oceanography; Marine Policy
Genomics, evolution and ecology of Hydrozoa (Cnidaria). Jellyfish blooms. Genomics of the "immortal" jellyfish Turritopsis dohrnii
Impact of national and supranational (EU, NAFTA) regulation change on the Maritime Industry firms' competitive strategy including maritime security regulations and firm and policy strategies to thwart piracy, disasters and other maritime mishaps in blue water and brown water environments
Estuarine and coastal hydrodynamics and water quality conditions, particularly the physical transport processes and their interactions with water quality and living resources; included topics in physical transport processes are estuarine residual circulation, dispersion of pollutants, sediment transport, etc., and those in water quality and living resources are eutrophication, hypoxia/anoxia, sediment diagenesis, sediment flux, larval transport, etc.
Impact of trace metal and nutrient enrichments, cycling and dynamics on physiology, primary productivity and community composition in coastal ecosystems.
Assistant Research Scientist
Sea turtle biology and conservation, nutritional ecology and stable isotope analyses; sea turtle life history including habitat use, foraging strategies, ontogenetic shifts, and migratory pathways.
Ecology of estuarine, coastal, and pelagic fishes. Recruitment processes, particularly factors affecting post-settlement survival. Fish life history and migration studies. Analytical approaches to fish demography.
Benthic ecology, ecosystem function and structure. Carbon and nitrogen cycles, food chain models. Environmental quality and sustainable development.
Marine geochemistry, radiochemistry.
Phylogeny and population genetics of polychaete and sipunculan worms. Reproduction and development of marine invertebrates. Evolution of hydrothermal vent and cold seep fauna.
All aspects of seafood micro-biology. Association of bacterial pathogens with shellfish and devising experimental methodologies to provide the consumer with a safer food product.
Complexity Theory, Computer modeling of estuarine circulation, Analysis of beach erosion mitigation policies, Geographic Information System Modeling.
Marine fisheries management; marine environmental policy and law; anthropogenic stressors on marine ecosystems.
Chemical processes of gases and aerosols in the atmosphere and how they are affected by human activities and climate change, the interaction between the atmospheric and marine environment, development and application of numerical chemical transport models to investigate atmospheric processes across different spatial scales and across the atmosphere-ocean interface.
Biology and ecology of bony fishes, sharks, and rays. Research focus on life history, habitat use, movement, and feeding ecology of marine fish species; including estuarine, shelf, and offshore pelagic fishes.
Long-term studies of the behavioral ecology of dolphins, porpoises and whales. Elucidating differences of foraging techniques in different environments. Flexibilities of adaptation in social marine mammals and in social animals in general.
Paleoceanography, Micropaleontology, Biochronology.
Determinants of range size and position • biodiversity conservation in the face of climate change • detection, and ecological and conservation implications of cryptic speciation and diversity • vertebrate ecology and life history • biology of amphibians and reptiles • speciation and evolution of reproductive isolation • evolutionary ecology of body size • clinal variation in life history and physiological traits • comparative animal physiology and physiological ecology
Physical and biological habitat use by sperm whales and other apex predators in the Gulf of Mexico; Biogeochemical processes in Gulf of Mexico mesoscale eddies; Zooplankton stock estimation from ADCP backscatter intensity.
Phytoplankton ecology, Phytoplankton community structure and diversity, Harmful Algal Blooms: Karenia brevis in coastal Texas waters, Picoplankton diversity, Flow cytometry and in situ imaging.
Ichthyology, systematics and comparative morphology of teleost fishes
Population Dynamics, Statistical Ecology & Mathematical Ecology.
Mariculture and food quality.
Ecology and behavior of fishes as well as other aquatic and semi-aquatic organisms, in both marine and freshwater ecosystems. This includes the response of fishes to direct and indirect effects of biotic (including human) and abiotic factors that are both internal and external to the system, and across a range of spatial and temporal scales.
Organization and evolution of fish genomes, and in part towards using genetic molecules to resolve both basic and applied problems involving fish species. Choice of organisms is based on biological diversity, evolutionary heterogeneity, and economic importance, as well as the opportunities to work in the field and interact with the organisms in their natural ecologies.
Ecosystem and food web modeling.
Population/conservation genetics, molecular systematics and evolution, evolutionary biology, phylogeography, hydrothermal vent biology, genomics.
Evolutionary genetics, including molecular ecology, sexual selection, quantitative genetics, and molecular evolution.
Shrimp culture including nutrition and feeds development.
Comparative endocrinology of reproduction and thyroid function in fish, amphibians, and reptiles.
Our research team is collaborating with partners at the Houston Advanced Research Center and University of Maryland. In a study funded by USDA, we are studying cultural models of land conservation. In a complementary study funded by NSF, we are looking in more depth at how cultural models influence practice of Land Trusts at local, regional and national scales of biocomplexity.
Adaptive significance of the alternative reproductive tactics of the olive ridley sea turtle; impact of environmental change on sea turtle behavior; protected species management; applying behavioral research to the conservation of wild populations.
Research in the Roelke lab encompasses field studies, laboratory experiments, and mathematical modeling simulations that address lower foodweb ecology in aquatic ecosystems. Emphasis is placed on interactions between foodweb components and the physicochemical environment.
Evolution/behavior of fishes.
Carbon and nitrogen cycling in coastal ecosystems: Biology of exopolymer (EPS) production; Diatom ecology and physiology; Ecology of microphytobenthos; Nitrogen cycling in sediments; Biological production of the greenhouse gas nitrous oxide; Estuarine ecology.
Crustacean taxonomy and behavior, general invertebrate biology.
Fisheries ecology and food webs.
Molecular Ecology, Evolution, Population Genetics, Marine Biology, Community Ecology, Fisheries Management, Invertebrate Zoology, Biotechnology
Seagrass physiology and response to ecological stress, seagrass-microbe associations, seagrass-epiphyte interactions.
Diving physiology in marine mammals, sea birds and turtles.
Nutrition of aquatic organisms; nutritional ecology; nutrient essentiality, digestibility and the physiological ecology of aquatic organisms; fish meal replacement in aquatic feeds, chemoattraction, sea urchin nutrition, and ecology of penaeid shrimp viruses; depuration of oysters against Vibrio vulnificus.
Marine connectivity; larval dispersal; population ecology; population genetics
Oceanic carbon cycle; Ocean acidification; Sediment early diagenesis; Carbonate geochemistry; Stable isotope biogeochemistry
Molecular and chemical ecology of native plant species, in particular their interaction with their environment and response to habitat fragmentation. It includes both specific events, such as the effect of temperature on the expression of allelic variants of a single enzyme (Granule Bound Starch Synthase) and broader events, such as the genetic relationships among populations in fragmented habitats.
Ecosystem studies with a focus on benthic components, freshwater resources, water quality, ecosystem modeling, and environmental statistics; and integrating natural science with human dimensions research.
Neurobiology; biological basis of learning and memory; behavior.
Fish systematics, diversity, and conservation; emphasis on gobioid fishes.
Field research experience in temperate salt marsh creeks, semi-arid estuaries, and polar regions
Conservation genetics of exploited marine fishes, historical patterns of zoogeography, systematics and evolution of bony fishes and elasmobranchs, patterns of sexual selection, conflict, and speciation.
Microbial ecology, Geomicrobiology, Biogeochemistry, Molecular microbiology, Genetics, Transcriptomics, Marine deep subsurface biosphere
Marine Ecology, Animal Behavior, Chemical and Sensory Ecology, Fluid Mechanics and Chemical Signaling in Aquatic Environments.
Spatial Statistics, Temporal Statistics, Statistical Consulting, Statistical Education
Marine Ecology, Marine Fisheries.
Microbial Ecology, Molecular Biology, Population Genetics, Evolution, Genomics, Metagenomics, connections between oceans and human health
Ecology and physiology of estuarine/coastal plankton
Tidal Flat Ecology; Ornithology; Marine Benthic Ecology; Aquatic Entomology.
Phytoplankton ecology and harmful algal blooms