Two species of invasive Asian carp may be able to spawn in more Great Lakes tributaries than previously thought, according to the U.S. Geological Survey, which released a new report about the fish on Tuesday.
Researchers hope the new material will help predict where the two species, bighead carp and silver carp, could spawn if they make it to the Great Lakes.
"If Asian carp spread into the Great Lakes, knowing where to expect them to spawn is a critical step in controlling these invasive species," said USGS scientist Elizabeth Murphy. "Our study combines the biology of Asian carp early life stages with the physics of rivers to identify potential spawning tributaries, thus giving managers an opportunity to develop targeted control strategies."
According to the Associated Press, Asian carp can reach 100 pounds and some experts worry that they would be able to out-compete native fish for food and threaten the lakes' $7 billion fishing industry.
The USGS report shows that fertilized Asian carp eggs can incubate in waterways that are only 16 miles long, which is far shorter than the 62 miles requirement researchers previously believed.
For more information on recent study, check out the article on the USGS website.