https://www.siamtoo.com/18418/?fbclid=IwAR3s2iswwuHKSEczAxEJKG2MVKibWN7tT9d8kzYhlB3yF2rWifbVu_q_jlw
Are they dangerous?
Lampreys are extremely dangerous as a single lamprey can kill more than 40 lb of fish which poses a serious threat to the fishing industry. The destructive nature of the lampreys is so high in magnitude, which can be understood by the fact that only one out of seven fishes can survive if they are ever attacked by a lamprey. Lampreys are, however, unlikely to attack humans and are mainly a threat to other fish.
So at the risk of appearing stupid ... at least on Seneca Lake I was under the impression that one needed a lure (spoon) to appear as if it was injured ... thereby the bit slower trolling speed seemed like it would be more productive ... no?