ROANOKE — Nearly 370 miles of mountain streams in Virginia and West Virginia have been declared a critical habitat for the candy darter, a small, rainbow-colored fish that two years ago was listed as an endangered species.
The U.S. Fish and Wildlife Service said last week that the designation will carry conservation measures meant to lessen “the looming threat of losing one of North America’s most vivid freshwater fish.”
But it won’t stop the Mountain Valley Pipeline from crossing the streams — either buried in trenches dug along their bottoms or through tunnels bored beneath them — that lie in its path.
A biological opinion released by the Fish and Wildlife Service last September found that running a massive natural gas pipeline 303 miles through mostly rural terrain is not likely to jeopardize the candy darter and four other species.
While some steps have been taken and discussions with Mountain Valley continue, “we do not expect this [critical habitat] designation to result in additional conservation measures,” Fish and Wildlife spokesperson Meagan Racey wrote in an email.
Environmentalists say the pipeline could wipe out a species that has already seen its numbers decrease by half.
“There’s no way to ram a pipeline through the mountains without causing sediment to enter the streams indefinitely, and sediment destroys the darter’s habitat,” said Tierra Curry, a senior scientist with the Center for Biological Diversity.
The 368 miles of critical habitat designated by the federal government include streams in Giles County and West Virginia that are part of the watersheds of the Gauley, Greenbrier and New rivers.
Candy darters — easily distinguishable by their vibrant teal, red and orange colors — prefer shallow, fast-flowing streams with rocky bottoms. The 2- to 3-inch fish are an important link to the aquatic food chain, feeding on insects before they are sometimes eaten by larger fish.
When stream pebbles and rocks become coated with sediment from mining, logging and other activities, it makes it harder for fish to find food and lay eggs. There are 17 surviving populations of the candy darter, down from 35 about a century ago, according to the Fish and Wildlife Service.
Construction of the Mountain Valley Pipeline is expected to dump more silt and sediment into streams. Since work began in 2018, environmental regulators in Virginia and West Virginia have cited the company with more than 300 violations of erosion and sedimentation control regulations.
Last October, the Center for Biological Diversity and six other environmental groups filed suit, asking the 4th U.S. Circuit Court of Appeals to overturn the biological opinion. The Richmond-based appellate court denied a motion to stay the opinion while the case is pending, signaling a tough road ahead for the challengers.
Meanwhile, Mountain Valley is free to resume construction on most parts of the $6 billion project, which is over budget and behind schedule because of multiple legal challenges. Stream crossings are on hold while the joint venture of five energy companies seeks new permits from state and federal agencies.
The biological opinion “addresses all concerns related to the candy darter,” company spokesperson Natalie Cox said Friday, declining to elaborate.
Other threatened or endangered species that live in the pipeline’s route through Southwest Virginia include the Roanoke logperch, the Indiana and northern long-eared bats and the Virginia spiraea, a flowering plant that is a member of the rose family. Critical habitats for those species were established years ago, not long after they were listed by the U.S. Fish and Wildlife Service.