Great Lakes are estimated at 900 trillion. The influx of parasitic lamprey populations after the development of the Erie Canal and the much later Welland Canal led to the two federal governments of the US and Canada working on joint proposals to control it. By the mid-1950s, the lake trout populations of Lakes Michigan and Huron were reduced, with the lamprey deemed largely to blame. This led to the launch of the bi-national Great Lakes Fishery Commission. "The Great Lakes: An Environmental Atlas and Resource Book" (1972) noted: "Only pockets remain of the once large commercial fishery." But, water quality improvements realized
Rother Link Rother Link The Rother Link is a planned English canal that would connect the Chesterfield Canal at Killamarsh, via the River Rother through to the Sheffield and South Yorkshire Navigation, thus creating a new cruising ring and encouraging boats to visit the Chesterfield Canal. The Rother Link was first suggested in early 1995, when the Chesterfield Canal Society submitted their proposal to the National Rivers Authority for the conversion to navigable status of the section of the River Rother from Killamarsh to Rotherham. The link has been adopted as an official goal by the Chesterfield Canal Partnership, a group of