West Nile Virus (WNV) first arrived in Ontario, Canada in 2001 and has since spread throughout most of the province, causing disease in humans. The provincial government established a province-wide surveillance program to monitor WNV transmission throughout the 36 regional health units. Here we have acquired records of WNV human and mosquito surveillance from 2002 to 2013 to describe seasonal a...

The filamentous green alga Cladophora grows to nuisance proportions in Lake Ontario. Stimulated by high phosphorus concentrations, growth results the degradation of beaches and clogging industrial water intakes with attendant loss beneficial uses. We develop a multi-module bioavailable model examine efficacy management strategies mitigating algal growth. platform includes modules simulating hyd...

Many barriers to behavioural change exist when it comes climate action. A key element overcoming some of these is effective communication complex scientific information. The use visualizations, such as photographs or interactive maps, can increase knowledge dissemination, helping community members understand climatic and environmental changes. These techniques have been utilized in many discipl...

Lake ice models are a vital tool for studying the response of ice-covered lakes to changing climates throughout world. The Canadian Ice Model (CLIMo) is one-dimensional freshwater cover model that simulates Arctic and sub-Arctic lake well. Modelling in temperate regions has presented challenges due differences composition between northern region ice. This study presents comparison measured mode...

The surface watersheds of North America contain over 20% of the world’s freshwater with profound environmental and ecological importance. Large scale networks for the real-time monitoring of lake levels and stream flows are available throughout the United States and Canada. This paper investigates the use of predictive control for management of two large lakes in the Rainy River Watershed locat...

A new method of analysing wave directional data is applied to wave staff data from Lake Ontario during 106 episodes covering a range of wind speeds (up to 16 m/s) and significant heights (up to 2.5m). The method yields wavenumber spectra directly and examples are shown of downwind slices through the full 2-D wavenumber spectrum. These spectra are steeper than the conventional view would suggest...

Highly contaminated Lake Ontario sport fish represent an important human dietary exposure to polychlorinated biphenyls (PCBs) and other toxic contaminants that may disrupt endocrine pathways. New York State Angler Cohort women interviewed by telephone in 1993 provided menstrual cycle length (n = 2,223). Fish consumption at cohort enrollment in 1991 was categorized by duration and frequency and ...

Two types of testicular tumor were evident in cyprinid fishes collected from Lake Ontario. Both types of tumors appeared to be of Sertoli cell origin. One contained predominantly Sertoli cells with little or no lipid content and germinal cells in only small numbers. The second contained large numbers of spermatogonia together with Sertoli cells that contained large amounts of lipid and smooth e...

This study examines the role of rock art in the construction of Woodland Period (300 BC to AD 1700) hunter-gatherer landscapes in the Lake of the Woods region of northwestern Ontario. The authors examine the distribution of documented pictograph sites relative to the locations of rock formations where the geologic conditions would have favored the placement of pictographic rock art but are abse...