USFWS Pacific:
Pacific Lamprey Struggling to Pass a Fish Ladder
USFWS Pacific:
Adult Pacific Lamprey in the Smith River, Oregon
USFWS Pacific:
2012 Lamprey Harvest at Willamette Falls
USFWS Pacific:
Pacific Lamprey at the Oregon Zoo
USFWS Pacific:
Pacific Lamprey Climbing Up Test Lamprey Passage System
USFWS Pacific:
Finding Pacific Lamprey Ammocoetes