Across the U.S., invasive crayfish populations are surging, threatening native species, aquatic vegetation and habitats.

In the Great Lakes, researchers in Lake Michigan have documented exceptionally fast crayfish spread, while in the Lake ...

Texas Parks and Wildlife aquatic biologists track a Texas invader, the Australian redclaw crayfish. Newbie anglers discover the outdoors through a mentored fishing program. Chef Davis Turner of Austin ...

Bass and other non-native fish already have taken advantage of warming waters to breed below Glen Canyon Dam. Now, biologists ...

Kansas officials say sampling at McPherson State Fishing Lake revealed the invasive, aggressive Rusty Crayfish, which likely moved in when used as fishing bait. TOPEKA — An invasive species of ...

Add Yahoo as a preferred source to see more of our stories on Google. The super invasive rusty crayfish, sometimes called a gladiator, has been slowly taking over several waterways in Pennsylvania.

You might not think about crustaceans or crayfish when you think of the Wyoming Game and Fish Department, but we do manage them. Crayfish, also known as crawdads, resemble miniature lobsters and are ...

An invasive species known to attack the feet of unsuspecting swimmers was just discovered in a Kansas lake, officials said. The Kansas Department of Wildlife and Parks found rusty crayfish in ...