Regional assessment Varennes-Contrecoeur

The first major impact seems to have been caused by logging and the beginnings of industrialization, in the nineteenth century; this included the floating of timber down the Ottawa River and the St. [...] CHAPTER 2 The ZIP Program Starting in the 1960s, growing public awareness of the degradation of the Great Lakes and the St. [...] Lawrence, and summarizes the main points of the available scientific and technical literature with the aim of allowing them to participate actively in the discussions and the process of defining priorities for action. [...] The water in the ship channel takes about ten hours to run the 45 km of the study area, but the flow is generally slower, on the order of 0.3 to 0.6 m/s, along the banks and around the islands. [...] Breeding birds of interest include the Pied-billed grebe, the Least bittern, the Common gallinule, the American coot, Wilson’s phalarope, the Sharp-tailed sparrow, the Northern harrier and the Short-eared owl.