Toby Talbot, File, Associated Press
MONTPELIER, Vt. — Fear that an invasive algae species known as "rock snot" might have contaminated a Vermont fish hatchery has prompted the U.S. Fish and Wildlife Service to donate thousands of Atlantic salmon to native American tribes in the Northeast to prevent a possible spread of the specimen.
On Thursday, the Connecticut River Atlantic Salmon Commission voted unanimously to remove the salmon from the federal Bethel Fish Hatchery, clean them and donate them to the tribes so the facility can be closed and cleaned.
The algae, believed to be transported by anglers moving from one body of water to another, pose no threat to human health. But rock snot can overwhelm cold water lakes and streams and biologists fear the Vermont hatchery could be contaminated with the algae because it is known to be present in the White River, the waterway that damaged the hatchery during the August flooding.
"These are very valuable fish. Traditionally they would be used to further the efforts of restoration of Atlantic salmon to the Connecticut River basin," Bill Hyatt, the director of the Connecticut Bureau of Natural Resources and the chairman of the Connecticut River salmon commission, said Thursday. "Unfortunately, with the contamination of didymo at the facility, it makes it totally impossible to use the fish in that manner."
The hatchery also contains about 434,000 lake trout destined for lakes Ontario and Erie. A separate decision about whether those fish can be safely released without spreading rock snot, or whether they will have to be disposed of, is expected later this month.
The Atlantic salmon at the Bethel hatchery are part of a Fish and Wildlife Service program that is working to restore the species to its traditional habitat along the Connecticut River. Historically, the fish hatch in the tributaries and young salmon swim downstream into the Atlantic Ocean, where they remain for several years before returning to the streams where they were hatched to spawn.
The salmon habitat on many of those rivers was destroyed by European settlers who built power dams that prevented the fish from reaching their spawning grounds.
Over the last 10 to 15 years didymo has been found across North America. It is thought to be transported on fishing gear. A number of states, including Vermont, have outlawed felt-soled fishing waders thought to be easy carriers of the algae.
Rock snot was first found in the Connecticut River in Vermont and New Hampshire in 2007 just south of the Canadian border. Since then, it's been found in various locations across the region.
Since the hatchery was inundated with water from the river known to contain didymo, the experts want to make sure the water used to carry the fish to the locations where they are stocked do not spread the algae.
The fish have to be removed from the hatchery before it can be cleaned.
About 3,000 salmon, some as large as five pounds, will be given to the Native American tribes. Another 3,400 smaller salmon, about six inches, will be released into parts of the Connecticut River basin where didymo is known to be present so there is no threat of new contamination.
Thousands more were washed into the White River by the flood waters.
Once the fish have been removed from the hatchery, technicians will then scrub the hatchery's fish tanks and other equipment as part of efforts to repair the facility that was damaged by the floodwaters. It could take up to two years to repair the hatchery, said Bill Archambault, the Fish and Wildlife Service's assistant regional director for fisheries.
Archambault said testing is under way to make sure no didymo is in the water that would be used to carry the 434,000 lake trout — about 8 inches long — for early stocking in lakes Ontario and Erie.
The decision about the lake trout in the hatchery will be made by the Great Lakes Fishery Commission.
Meanwhile, Fred Corey of the Aroostook Band of Micmacs around Presque Isle, Maine, said his tribe expects to receive 120 salmon that will be used as part of a Nov. 20 ceremony to mark the 20-year-anniversary of the tribe's formal recognition by the federal government.
Corey said that before European settlement, salmon was a staple of the tribe.
About 1,000 people from the tribe and other groups from the U.S. and Canada are expected for the celebration. The salmon will be served along with moose meat, fiddlehead ferns and other traditional foods.
"Any time a resource like that is utilized the tribe expresses respect for the fish that gave its life to provide food," said.
Without the donation of the salmon from the federal government, it's doubtful the tribe would have been able to afford salmon for the celebration.
"It would have been very challenging and part of it would be the cost," Corey said. "Our tribe is very low-income. We don't have a lot of resources."
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