Northern Pike;4424108; said:I honestly hate them my self also, They are always clinging onto trout and salmon that i catch and making scars when i rip them off, they are pretty nasty looking to.......
Some of you need to read up on lampreys. Not all are parasitic and the ones you're referring to are not the species being discussed.
Brook lampreys sift through the substrate for food as juveniles and do not eat as adults. They die soon after spawning.