Scientists and researchers are focusing on a few specific areas of Lake Erie in their search for Asian carp. The search follows on the results of testing which indicated traces of Asian carp DNA in the water. 
“Water samples are being taken this week for further DNA analysis. Next week, crews will survey fish populations, using electric currents that temporarily stun fish and make it easier to land them in nets.
In addition to revisiting areas where positive samples were collected previously, scientists will collect water from places that may be ‘reproductively favorable’ for Asian carp, said Tammy Newcomb, research program manager for the Michigan Department of Natural Resources. ‘These are the areas where we can be most effective in preventing expansion of these species should they be present.’”
Read the complete article at the link above for more information about the search and the specific areas that will be tested.