A harvesting ban on shellfish in several communities along the South Shore will remain in effect for the remainder of the week. The ban is precautionary because heavy rains on Remembrance Day may have raised bacterial levels in the water. Chief of regulations for the Maritimes region, Rick Young, says waters within three kilometres of the shoreline in Lunenburg, Queens and Digby counties are closed. Officials from Environment Canada and the Food Inspection Agency will conduct tests later this week to ensure the products are safe to eat. Young says officials from DFO have posted signage in areas where the ban applies. The biggest concern is with mussel, clam and oyster harvesting. Scallops can still be harvested.