A5042003638- Fish Ecology and Management Studies
- Hydrology and Sediment Transport Processes
- Wildlife Ecology and Conservation
- Fish biology, ecology, and behavior
- Adaptive optics and wavefront sensing
- Freshwater macroinvertebrate diversity and ecology
- Soil and Water Nutrient Dynamics
- Aquatic Invertebrate Ecology and Behavior
- Atmospheric and Environmental Gas Dynamics
- Marine and fisheries research
- Soil erosion and sediment transport
- Stellar, planetary, and galactic studies
- Avian ecology and behavior
- Marine and coastal ecosystems
- Hydrology and Watershed Management Studies
- Astronomy and Astrophysical Research
- Optical Systems and Laser Technology
- Ecology and biodiversity studies
- Computational Physics and Python Applications
- Fish Biology and Ecology Studies
- Advanced optical system design
- Astrophysics and Cosmic Phenomena
- Isotope Analysis in Ecology
- Airway Management and Intubation Techniques
- Amphibian and Reptile Biology
University of Cincinnati
2019-2024
Taranaki Base Hospital
2021
Ministry of Health
2021
Large Synoptic Survey Telescope Corporation
2018-2019
Cornell University
2008-2019
(Abridged) We describe here the most ambitious survey currently planned in optical, Large Synoptic Survey Telescope (LSST). A vast array of science will be enabled by a single wide-deep-fast sky survey, and LSST have unique capability faint time domain. The design is driven four main themes: probing dark energy matter, taking an inventory Solar System, exploring transient optical sky, mapping Milky Way. wide-field ground-based system sited at Cerro Pach\'{o}n northern Chile. telescope 8.4 m...
Nutrient limitation plays an important role in shaping community structure and ecosystem processes aquatic environments. Many types of nutrient diffusing substrata (NDS) have been used to estimate lotic systems. However, whether these various NDS methods produce comparable results is unknown. We evaluated the 3 most commonly methods—clay pots, plastic cups, periphytometers—in a single stream determine if they gave qualitatively similar results. also examined effects initial ratios on...
In the Hawaiian Islands, intentionally introduced exotic fishes have been linked to changes in native biodiversity and community composition. 1905, mosquito fish Gambusia affinis was control mosquitoes. Subsequently, G. spread throughout Islands into coastal anchialine ponds. Previous studies suggest that presence of invasive ponds may eliminate species, including endemic shrimp Halocaridina rubra. We examined effects on H. rubra populations Kona-Kohala coast island Hawai'i. affinis,...
Movement of organisms is an important mechanism controlling array processes within ecosystems. Recent analyses suggest that movement composed individual displacement (distance moved by individuals) and turnover (proportion individuals moving). Turnover because it influences population size structure, as well interactions among different species a habitat. We used stationary antennas passive integrated transponders tags to monitor habitat use, turnover, Sonora suckers (Catostomus insignis)...
Inland aquatic systems are major global contributors to the atmospheric carbon budget through greenhouse gas (GHG) emissions, although amount and form of released varies widely across within systems. Bioturbation sediments can impact biogeochemical conditions physically release sediment-bound bubbles containing GHGs, but variation in frequency such disturbance may modify rate composition resulting GHG emissions. We hypothesized that an intermediate bioturbation would result greatest methane (CH
Abstract Fish populations are composed of a mixture sedentary and mobile individuals, but it is not clear whether movement behavior plastic or fixed for individuals what proportion the population exhibits behavior. To investigate mobility patterns two common species suckers, Sonora Sucker Catostomus insignis Desert clarkii , in Gila River western New Mexico, we tracked 449 over three summers using passive integrated transponder (PIT) telemetry. Both were typical linear home ranges exceeded...
Ecosystem engineering can control the spatial and temporal distribution of resources movement by organisms within an ecosystem mobilize across boundaries distribute effects. Movement patterns fishes cause physical changes to aquatic habitats though nesting or feeding, both which often vary in space time. Here we present evidence Sonora sucker Catostomus insignis , a dominant fish streams southwestern United States, show how cryptic nocturnal bioturbation activities heterogeneity benthic...
Dreissenid mussels (quagga and zebra mussels, Dreissena bugensis polymorpha) continue to spread throughout inland waterbodies of North America.Although there are considerable management mitigation efforts underway prevent infestation new waterbodies, have been relatively few successful eradicate once detected due a lack cost-effective treatments.Two potentially molluscicidal agents, potassium chloride (KCl, also called muriate potash) copper (formulated as Earthtec QZ ® ), successfully...
Abstract Fish movement in freshwater streams is often tied to patterns of flow, especially when the stream intermittent, flashy, or some combination thereof. Relationships between flow and fish are exacerbated small urban impervious surface‐dominated watersheds that lead extreme conditions. Here we examined response Creek Chub ( Semotilus atromaculatus ), a common pioneer species eastern North America, events various sizes intermittent headwater stream. Our primary goals were determine (1)...
We investigated movement and growth of two common suckers, Catostomus clarki insignis, in three streams that represent the broad environmental tolerances these species. There was limited evidence restricted C. clarki, with many individuals moving 600 m 50–90% recaptured detected outside original location capture. insignis more sedentary than only 25% Movement patterns species also varied among streams, further Sonoita Creek Bonita or West Fork Black River, Arizona. experienced a series...
Abstract Objective Off‐channel floodplain features are important components of a river system that provide habitat and boost regional species pools, but river–floodplain connectivity is disrupted by anthropogenic activities. The Campbell Lakes in Harrison, Ohio, formerly isolated gravel pits along the Whitewater River connected to through flooding‐related erosion. lakes were first stocked with sport fish Great Parks Hamilton County promote recreational fishing, stocking ended 2019 due...
The Large Synoptic Survey Telescope is an 8.4m telescope now in construction on Cerro Pachón, Chile. This designed to conduct a 10-year survey of the southern sky which it will map entire night every few nights. In order achieve this goal, mount has been high accelerations that allow system change observing field just 2 seconds. These rapid slews subject M1M3 mirror inertial and changing gravitational forces be actively compensated for keep safe, aligned, properly figured during operations....
Methane emissions from aquatic ecosystems are increasingly recognized as substantial, yet variable, contributions to global greenhouse gas emissions. This is in part due the challenge of modeling biologic parameters that affect methane a wide range sediments. For example, impacts fish bioturbation on literature have been shown result gradient reduced enhanced However, it likely variation experimental density, and consequently frequency by fish, this outcome. To explore how disturbance levels...
Abstract Objective Littoral zone aquatic habitat is an important component of sport fish population dynamics in freshwater lakes and reservoirs a primary target fisheries management actions. However, data for these systems are often minimal or nonexistent due to the cost time‐consuming nature traditional sampling methods. Side‐scan sonar has been identified as potential tool that can address limitations, allowing quantification features over large areas. available two forms: recreational...
The Large Synoptic Survey Telescope (LSST) primary/tertiary mirror is an 8.4-meter cast borosilicate monolith. hardpoints form a hexapod that used to define the location of M1M3 relative cell, as pneumatic figure actuators, which support mass during operation, are unable position. must have high stiffness, precise displacement control, and features limit loads in all six degrees freedom order protect mirror. Assembly verification their requirements was undertaken summer fall 2017.
The Large Synoptic Survey Telescope<sup>1</sup> (LSST) is an altitude-azimuth mounted three mirror telescope and camera. primary (M1) tertiary (M3) mirrors are integrated into a single, monolithic borosilicate substrate 8.42 m diameter. annular secondary (M2) located above the M1M3 camera nested inside M2. supported on cell by two independent systems: one system for Active Mode other Static Mode. During observing, or Mode<sup>2</sup>, array of 156 support figure control actuators consisting...
Abstract Downstream migration of smolts is a critical aspect the life history pathway for anadromous salmonids. Timing downstream can vary along latitudinal and climatic gradients. Steelhead Oncorhynchus mykiss occur over broad range climate hydrologic conditions, but relatively little known about timing in southern extent species’ range. Using 19‐year data set (1994–2014) smolt arrivals collected migrant trap at Vern Freeman Diversion facility on Santa Clara River, one largest coastal...
The Vera C. Rubin Observatory is currently under construction on Cerro Pachón, in Chile. It was designed to conduct a 10-year multi-band survey of the southern sky with frequent re-visits (with both an intra- and extra-night cadence) identify transient moving objects. mirror cell assembly Tucson, Arizona by engineering department, tested twice Tucson. first testing campaign performed at CAID industries, where fabricated, using steel surrogate that has same geometry mass glass mirror2,4....