Jan 2007 - Dec 2008
Investigating the epidemiology of pancreas disease in Atlantic salmon Salmo salar. This disease is currently a leading cause of mortality in the Scottish salmon industry, but relatively little is known of its epidemiology or patterns of virulence. It is not clear, for example, whether peaks in mortality represent an actual epidemic of infectious individuals with high mortality rate, or whether mortality represents a response by an already-infected population to some trigger in terms of environment, management, or nutrition. This project is attempting to find correlations amongst patterns of mortality and management to identify potential risk factors. Performing epidemiological studies on data collected outside of controlled experiments is challenging and presents a number of statistical issues with complicate the analysis of the data.