Stephen Swanson is a web producer at CBS News Minnesota. Stephen was a floor director for a decade before moving to the WCCO-TV newsroom in 2011, where he focuses on general assignment reporting.

CHAMPAIGN-URBANA, Ill. (WCIA) — University of Illinois researchers studying an invasive species of crayfish recently made a unique discovery — two new species that had long been mistaken for the ...

ALEXANDRIA, Minn. — Yet another aquatic invasive species has invaded a Minnesota lake — this time the signal crayfish, a native of the Pacific Northwest confirmed in Lake Winona. The Minnesota ...

SIOUX FALLS, S.D. (KELO) — The Minnesota Department of Natural Resources has confirmed the presence of an invasive species, but it’s not zebra mussels or carp. Wildlife officials say signal crayfish ...

The non-native and potentially invasive signal crayfish has appeared for the first time in Minnesota, prompting the state to warn that they are illegal without a permit. Officials confiscated 10 ...

An invasive species has been confirmed in one of Minnesota’s Douglas County lakes. According to the Minnesota Department of Natural Resources, the signal crayfish has been found in Lake Winona. So far ...

Researchers at the University led by Eric Larson, professor in ACES, made a groundbreaking discovery pertaining to the Signal Crayfish. They found there are two distinct species of crayfish residing ...

Crayfish researchers have discovered, together with Swedish colleagues, a new disease plaguing female signal crayfish. As the name suggests, eroded swimmeret syndrome (ESS) destroys the swimmerets of ...

It’s crayfish season in Louisiana, but the Pacific Northwest is receiving all the crayfish spotlight. Researchers recently discovered two new species of the crustaceans: the Okanagan crayfish and the ...

Forget Nessie: there's another insidious creature living in the waters of Scotland. The story starts in the streams and lakes of the northwestern United States, where North American signal crayfish ...

Oct. 13 (UPI) --In Britain, a handful of celebrity chefs have encouraged the practice of crayfish "trapping" to control the invasion of American signal crayfish. Unfortunately, new research -- ...