WABASH, Ind. (AP) _ Indiana Attorney General Greg Zoeller and the federal government's top Asian carp official are teaming up to raise awareness of the invasive fish species.
 
  Zoeller and Asian carp director John Goss toured a portion of the Wabash River Monday to meet with conservation groups and discuss the impact of the species on Indiana's waterways.
 
  Asian carp first began invading U.S. waterways after escaping from southern fish hatcheries in the 1970s. The fish can grow up to 4 feet long and weigh 90 pounds.
 
  Environmentalists fear they could disrupt the food chain and displace native fish species.
 
  Zoeller says he wants to find a way to stop the spread of the carp and protect the Great Lakes.
 
  He plans to continue his tours of the Wabash through Thursday.