Fishing in the lakes changes with the seasons: winter brings ice-fishing for salmon and togue, ice-out is salmon fishing time, and in June, as surface water warms, people fish deep for togue and salmon in colder water. From June to September, fishermen enjoy Brackett Lake and East Grand's exceptional bass fishing. Brook trout, bass, salmon, togue, and white perch are part of this long-standing fishery. A recent illegal introduction of landlocked alewives is changing the ecological dynamic of East Grand Lake, and the long-term effects on the forage base, cold-water fisheries, and the economy remain uncertain. Landlocked salmon, Maine's state fish and one of its most popular sport fish, originated from larger ocean-going Atlantic salmon and adapted to lakes over the thousands of years since the glaciers receded. After original populations were found, humans cultured the species and began introducing them into many Maine lakes in the 1800s. Today Maine stocks landlocked salmon into over 125 lakes, and stocked and natural populations generate hundreds of thousands of dollars annually for the Maine economy through sport fishing. Part of the old-time Down East angling experience was a Maine guide frying fish and potatoes over a campfire. In the 1940s, Essie "Cast-a-Mean-Fly" Graham began running Mushy's Camp, built in 1902, year-round on East Grand Lake, Tom Mutch ran Greenland Cove Camp and tied trolling flies or streamers including his "A A" Special, Pete "Barefoot" Spencer ran a camp at Greenland Cove, and Rideouts' Lodge began in the 1940s at Butterfield Landing as one of the first sporting camps on that side of the lake.