Schools of Dead Herring continue to wash ashore in South Western Nova Scotia and scientists still have no idea why. Officials with the Department of Fisheries and Oceans say numerous tests on the fish have failed to identify any viruses or disease that could explain the thousands of dead fish. Surveillance of the area also seems to rule out the idea that predators may have chased the fish ashore. More tests looking for such things as Algea toxins are currently being conducted.