a commission with jurisdiction over fisheries and navigation in a port or river
"The local fishing fleet had to wait for approval from the harbor conservancy before they could launch their seasonal trawling season."
the official conservation of trees and soil and rivers etc.
"The local conservancy recently planted thousands of new saplings to restore the riverbanks after last year's flood."
The conservation of a resource.
"The local government launched a new conservancy program to protect the region's dwindling water supply."