Helicopters Assist to Reintroduce Brook Trout to Remote Adirondack Pond

Transport of Lime Part of Effort to Mitigate Effects of Acid Rain and Create Hospitable Habitat for Brook Trout in Hawk Pond

Helicopters delivered 34 tons of lime to an acidified pond in the Five Ponds Wilderness Area in the town of Webb, Herkimer County, New York State Department of Environmental Conservation (DEC) Regional Director Judy Drabicki announced.

On March 6 and 7, approximately 40 DEC staff and New York State Police helicopter crews conducted the liming operation, which included 46 helicopter flights to transport 1,500 pounds of lime from a staging area near the boat launch at Stillwater Reservoir to Hawk Pond. The lime was deposited on the ice at the pond and later spread across the frozen surface. The liming of acidic lakes or ponds is a management tool used to neutralize the water's acidity and create water quality that is more favorable for fish and aquatic life. When the pond thaws this spring, the lime will enter the water and reduce its acidity level.

"Each year, fisheries staff select an Adirondack pond for liming to reintroduce brook trout in the Adirondacks," Regional Director Drabicki said. "This effort involves months of planning and coordination with DEC operations staff, forest rangers and forestry staff, along with State police helicopters, pilots and crews. This joint effort is critical to reclaim waters impaired by acid rain and restore native habitats to these Adirondack waters."

This operation is the first lime treatment for Hawk Pond. This fall, two strains of brook trout will be stocked in the pond: the Horn Lake strain of brook trout, and a heritage/domestic cross. Once the fish have had the chance to spawn, biologists will be able to use the genetics for each strain of the stocked fish to determine which parents are producing offspring and which strain is performing the best in the pond. This research will help guide future management decisions involving Adirondack brook trout ponds.

DEC fishery staff is optimistic that these operations will successfully return brook trout to some large Adirondack ponds and lakes. Larger water bodies in the Adirondacks maintain a deep cold water layer right through the summer (referred to as stratification), unlike the smaller ponds where water layers mix, which results in warmer water temperatures that are not as suitable for brook trout.

For additional information on DEC's liming program or a list of Adirondack trout ponds, contact the Watertown fisheries office at 315-785-2263.