(Portland, OR) -- The Oregon Zoo has 25 Pacific lamprey captured at Willamette Falls to study. The lamprey were part of a group that was captured in a tribal-led effort to move the eel-like species above Detroit Dam in the North Santiam [[ SAN'-tee-am ]] River to spawn. They'll take DNA from the zoo lamprey before they're moved into the river to monitor their reproductive success. The goal is to find ways to best restore the species.