A5042967044- Environmental Toxicology and Ecotoxicology
- Mercury impact and mitigation studies
- Selenium in Biological Systems
- Fish Ecology and Management Studies
- Aquaculture Nutrition and Growth
- Animal Behavior and Welfare Studies
- Reproductive biology and impacts on aquatic species
- Wildlife Ecology and Conservation
- Aquaculture disease management and microbiota
- Toxic Organic Pollutants Impact
- Physiological and biochemical adaptations
- Heavy Metal Exposure and Toxicity
- Marine animal studies overview
- Fish Biology and Ecology Studies
- Meat and Animal Product Quality
- Effects of Environmental Stressors on Livestock
- Sperm and Testicular Function
- Reinforcement Learning in Robotics
- Heavy metals in environment
- Animal Ecology and Behavior Studies
- Gaussian Processes and Bayesian Inference
- Isotope Analysis in Ecology
- Effects and risks of endocrine disrupting chemicals
- Animal Behavior and Reproduction
- Veterinary Equine Medical Research
University of Saskatchewan
2016-2025
Ludwig-Maximilians-Universität München
2023
Norwegian Institute for Nature Research
2023
University of South-Eastern Norway
2023
Institute of Nature Conservation
2023
Polish Academy of Sciences
2023
La Jolla Alcohol Research
2022-2023
Parks Victoria
2022-2023
Nephrologisches Zentrum Goettingen
2022-2023
RELX Group (United States)
2022-2023
We demonstrate the first application of deep reinforcement learning to autonomous driving. From randomly initialised parameters, our model is able learn a policy for lane following in handful training episodes using single monocular image as input. provide general and easy obtain reward: distance travelled by vehicle without safety driver taking control. use continuous, model-free algorithm, with all exploration optimisation performed on-vehicle. This demonstrates new framework driving which...
N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine-quinone (6PPD-quinone), a transformation product of the rubber tire antioxidant 6PPD, has recently been identified as chemical responsible for urban runoff mortality syndrome in coho salmon, with median lethal concentration (LC50) <0.1 μg/L. Subsequent studies have failed to confirm comparable sensitivity other fish species. Here, we investigated acute toxicity 6PPD-quinone rainbow trout, brook Arctic char, and white sturgeon. Fish were...
N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine-quinone (6PPD-quinone), a rubber tire oxidation product found in road runoff, is highly and acutely toxic to selected salmonids including coho salmon, brook trout, rainbow trout but not other fish species invertebrates studied date. Sensitive displayed increased ventilation gasping, suggesting possible impact on respiration. Here, adherent cell lines RTL-W1 RTgill-W1 were exposed 5–80 μg/L 6PPD-quinone, cytotoxicity, oxygen consumption rate...
Human-caused landscape change negatively affects the sustainability of many wildlife populations. In Alberta, Canada, grizzly bears ( Ursus arctos L., 1758) live in one most populated and heavily exploited landscapes which species survives. Long-term physiological stress individual animals may be predominant mechanism linking with impaired population health. Hair cortisol concentration has been validated as a biomarker long-term humans domestic animals; however, limited work examined factors...
The objective of this study was to investigate selenium toxicosis in larval northern pike (Esox lucius) originating from reproductively mature collected downstream a uranium milling operation Saskatchewan, Canada. Eggs were obtained female reference site and three sites representing an exposure gradient (approximately 2, 10, 15 km effluent discharge). Embryos incubated following two-way (crossover) analysis variance experimental design that allowed discrimination between effects due maternal...
Abstract Long‐term physiological stress in individual animals may be an important mechanism linking ecological change with impaired wildlife population health. In the Southern Hudson Bay (SH) subpopulation of polar bears ( Ursus maritimus ), increasing associated climate warming related to declining body condition. Accordingly, development tools assess long‐term this species prove invaluable for conservation efforts threatened population. The measurement hair cortisol concentration (HCC) has...
The measurement of cortisol in hair is becoming important studying the role stress life history, health and ecology wild mammals. concentration (HCC) generally believed to be a reliable indicator long-term that can reflect frequent or prolonged activation hypothalamic-pituitary-adrenal axis over weeks months through passive diffusion from blood supply follicular cells produce hair. Diffusion tissues surrounding follicle glandular secretions (sebum sweat) coat growing may also affect HCC, but...
The investigation established and validated methods to measure multiple biochemical indices of condition (whole body total lipids, whole triglycerides, muscle RNA : DNA ratio protein) simultaneously in the same individual juvenile fish. It also provided examples their application using a species comparison (salmonids cyprinids) degree change these after food deprivation. results showed that rainbow trout Oncorhynchus mykiss were much more susceptible decline all than fathead minnows...
For the past decade, considerable research has been conducted at a series of small lakes receiving treated liquid effluent containing elevated selenium (Se) from Key Lake uranium (U) milling operation in northern Saskatchewan, Canada. Several studies related to this site, including field collections water, sediment, and biota (biofilm and/or periphyton, invertebrates, fish, birds), semicontrolled mesocosm situ caging studies, controlled laboratory experiments have recently published. The aim...