into the lake from the north, and Hyder Creek feeds into the lake from the west as well as Herkimer Creek, which enters the lake close to where Oaks Creek drains the lake. Oaks Creek drains to the south through a bog, and then flows southward for roughly before flowing into the Susquehanna River. The Canadarago Lake watershed covers approximately . It includes parts of the towns of Otsego, Springfield, Richfield, Exeter in Otsego County and towns of Columbia and Warren in Herkimer County. It is the headwaters of the drainage basin of the Susquehanna River which runs from Otsego Lake in Cooperstown to Havre de Grace where it flows into the Chesapeake Bay of the Atlantic Ocean. Conservation and management Invasive species Zebra mussels were first introduced into the Great Lakes in the mid- to late-1980s from ballast discharged from freighters originating in the Black and Caspian Sea region of eastern Europe and western Asia. They first became established in Canadarago Lake since around 2000. They can outcompete and kill native unionid clams. They also disrupt the food web, destroy shoreline infrastructure and swimming areas. In Canadarago Lake, they are of particular concern due to the relatively large areas of suitable habitat, which increase their impact the lake. Pollution Incompletely treated sewage from Richfield Springs was historically dumped into Oquionis Creek and then flowed into the lake which caused algae blooms. Then in 1973, tertiary treatment was started which involved phosphorus removal by alum precipitation. Improvements were seen within a few years. Recreation Fishing One of the lake’s biggest attractions is fishing. There are many species of fish in the lake including alewife, chain pickerel, common carp, cutlip minnow, golden shiner, satinfin shiner, bridle shiner, common shiner, blackchin shiner, spottail shiner, bluntnose minnow, eastern blacknose dace, longnose dace, rudd, creek chub, fallfish, pearl dace, white sucker, creek chubsucker, shorthead redhorse, yellow bullhead, brown bullhead, banded killifish, rock bass, redbreast sunfish, pumpkinseed, bluegill, black crappie and tessellated darter, with tiger muskie, smallmouth bass, largemouth bass, black bass, yellow perch, walleye, and brown trout being the most popular to fish. In recent years yellow perch and other fishing in this lake have deteriorated due to over introduction of small bait fish by NYSDEC. The lake is accessed by a State-owned hard-surface boat launch on the west side off State Route 28. The lake’s Walleye population is being supplemented with approximately 40,000