Search Results - "Keller, Troy A."

Carbon limitation in hypereutrophic, periphytic algal wastewater treatment systems by Furnish, Brandon J, Keller, Troy A

“…Global eutrophication degrades water quality in freshwater ecosystems and limits the availability of freshwater for human consumption. While current wastewater…”
Get full text

Life-History Observations, Environmental Associations, and Soil Preferences of the Piedmont Blue Burrower (Cambarus [Depressicambarus] harti) Hobbs by Helms, Brian S., Figiel, Chester, Rivera, John, Stoeckel, Jim, Stanton, George, Keller, Troy A.

“…Cambarus (Depressicambarus) harti (Piedmont Blue Burrower) is a state-endangered primary burrowing crayfish found in highly organic soils associated with…”
Get full text

Co-digestion of Wastewater-Grown Filamentous Algae With Sewage Sludge Improves Biomethane Production and Energy Balance Compared to Thermal, Chemical, or Thermochemical Pretreatments by Bohutskyi, Pavlo, Keller, Troy A., Phan, Duc, Parris, Markeshia L., Li, Mengyuan, Richardson, Lakesha, Kopachevsky, Anatoliy M.

“…Wastewater algal treatment systems show improved economic viability and enhanced energy return on investment when the algal biomass is converted to biofuel…”
Get full text

Dewatering as a non-toxic control of nuisance midge larvae in algal wastewater treatment floways by Keller, Troy A, Husted, Emily M

“…Attached-algae floways have tremendous potential for use in wastewater treatment because natural algal communities show high nutrient removal efficiencies,…”
Get full text

Flow in culverts as a potential mechanism of stream fragmentation for native and nonindigenous crayfish species by Foster, Hannah R, Keller, Troy A

“…Habitat fragmentation and nonindigenous species are 2 of the leading causes of species loss globally. Thus, scientific information is needed to assess their…”
Get full text

Role of olfactory appendages in chemically mediated orientation of blue crabs by Keller, Troy A., Powell, Ian, Weissburg, Marc J.

“…Benthic crustaceans such as the blue crabCallinectes sapidususe various sensory appendages to navigate chemical plumes. We characterized the role of different…”
Get full text

Development of a new indicator of pollutant loads and its application to the Chesapeake Bay watershed by Keller, Troy A, Shenk, Gary W, Williams, Michael R, Batiuk, Richard A

“…Pollutant load reductions are often required to restore aquatic ecosystems experiencing eutrophication. Loads can be estimated using watershed models or data…”
Get full text

Thermal Preferences and Distribution of Northern Michigan Crayfishes by Keller, Troy A, Hazlett, Brian A

“…Crayfishes function as both ecosystem engineers and keystone species, and they serve as the trophic linkage between benthic organisms and fish predators…”
Get full text

Effects of Odor Flux and Pulse Rate on Chemosensory Tracking in Turbulent Odor Plumes by the Blue Crab, Callinectes sapidus by Keller, Troy A., Weissburg, Marc J.

“…The ability of animals to track through chemical plumes is often related to properties of evanescent odor bursts and to small-scale mixing process that…”
Get full text

Orientation in Complex Chemical Landscapes: Spatial Arrangement of Chemical Sources Influences Crayfish Food-Finding Efficiency in Artificial Streams by Keller, Troy A., Tomba, Abbie M., Moore, Paul A.

“…Fluid dynamics has been shown to alter ecologically important behaviors of aquatic organisms orienting to distant chemical sources. Because the fluid dynamics…”
Get full text

Mechanisms and potential implications of fragmentation in low-order streams by Keller, Troy A, Snyder, Eric B, Feminella, Jack W

Get full text

Orientation in complex chemical landscapes: Spatial arrangement of chemical sources influences crayfish food‐finding efficiency in artificial stream by Keller, Troy A., Tomba, Abbie M., Moore, Paul A.

“…Fluid dynamics has been shown to alter ecologically important behaviors of aquatic organisms orienting to distant chemical sources. Because the fluid dynamics…”
Get full text

Stream Periphyton Responses to Nutrient Enrichment and Crayfish Reductions by Keller, Troy A., Moy, Melinda L., Stock, Andrew L., Hazlett, Brian A.

“…We used agar-filled clay pots and Iarge cages to examine how periphyton responded to in situ manipulations of nutrient availability and crayfish in a pristine…”
Get full text

Effects of ontogeny and odors on behavior: The influence of crayfish size and fish odors on crayfish movement by Keller, Troy A., Moore, Paul A.

“…Intrinsic and extrinsic factors interact in complex ways to influence individual behavior. We characterized how ontogenetic stage and chemicals from potential…”
Get full text

Short-Term Crayfish Effects on Stream Algae and Invertebrates by Keller, Troy A., Ruman, Laura C.

“…Short-term caging experiments were conducted to examine the direct effects that the crayfish Orconectes propinquus has on benthic communities. Stream-colonized…”
Get full text

Foraging in complex odor landscapes: chemical orientation strategies during stimulation by conflicting chemical cues by Tomba, Abbie M., Keller, Troy A., Moore, Paul A.

“…The concept of trade-offs and the decisions organisms make regarding them have become a driving force in ecological research. One well-studied trade-off,…”
Get full text

Context-specific behavior: crayfish size influences crayfish–fish interactions by Keller, Troy A., Moore, Paul A.

“…Predator–prey interactions are often studied by examining either predator or prey behavior. This focal species approach ignores complexity that may determine…”
Get full text