Blocking and guiding adult sea lamprey with pulsed direct current from vertical electrodes

摘要: Abstract Controlling the invasion front of aquatic nuisance species is high importance to resource managers. We tested hypothesis that adult sea lamprey ( Petromyzon marinus ), a destructive invasive in Laurentian Great Lakes, would exhibit behavioral avoidance dual-frequency pulsed direct current generated by vertical electrodes and electric field not injure or kill non-target fish. Laboratory in-stream experiments demonstrated blocked migration directed into traps. Rainbow trout Oncorhynchus mykiss ) white sucker Catostomus commersoni migrate sympatrically with lamprey, avoided had minimal injuries when subjected it. Vertical are advantageous for fish guidance because (1) produced varies minimally depth, (2) grounded, reducing power consumption where portable remote deployments powered solar, wind, hydro, small generator feasible, (3) can be quickly deployed without significant stream modification allowing rapid responses new invasions. Similar fields from may blocking trapping other guiding valued around dams.