Several shots from different angles on a rainy day of scientists from Canada Fisheries Services arriving in trucks at area beside water in Nova Scotia, of them taking down diver equipment on quay including shots of a rowboat full of water floating, of boat carrying scientists leaving the quay. Several shots from different angles of scientists at work on boat in Saint Margaret's Bay, men identifying plastic tubes and divers preparing their equipment, of divers going down into water with scientists on boat handing research equipment, of them starting up a generator, of diver coming back to surface with mud of aquatic plant samples in tubes and pockets. Several shots from different angles of two divers on boat getting ready with help of scientists to go under water, of everybody at work in water and on boat, divers taking up different samples to surface and divers unrolling long ropes with buoy in water, of them taking out samples of water in garbage cans for analysis and tipping it into smaller cans.