If the Asians can do it with collared cormorants, trained muskie on a leash should work on pike too. 
https://www.facebook.com/cody.wolters/videos/pcb.1349120525204795/1349119578538223/?type=3

https://www.facebook.com/cody.wolters/videos/pcb.1349120525204795/1349119578538223/?type=3