DSC05297 photo 5ヶ月 0 Yellow And Black Road Concrete Barrier photo 5ヶ月 0 Boardman River Fish Ladder photo 11ヶ月 0 Service Employee Sexing a Sea Lamprey at the Cheboygan River in Michigan. photo 11ヶ月 0 Electric Barrier Fish Clearing photo 11ヶ月 0 Quad culverts on Montana Creek, Juneau, Alaska. photo 11ヶ月 0 Service Employee Checking a Sea Lamprey Trap on the St. Marys River, Which Borders Michigan and Ontario, Canada photo 11ヶ月 0 Service Employees at St. Joe River, Michigan checking Sea Lamprey Traps. photo 11ヶ月 0 Boardman River Fish Ladder photo 11ヶ月 0 Dam Removal on the Marquoketa River, IA photo 11ヶ月 0 Service Employees Checking a Sea Lamprey Trap in the Menominee River, Michigan photo 11ヶ月 0 Electric Barrier Testing photo 11ヶ月 0 Baordman River Sea Lamprey Barrier photo 11ヶ月 0 Big Manistee River Trap with Insert Raised in Michigan photo 11ヶ月 0 Boardman River Barrier photo 11ヶ月 0 Albany Creek barrier photo 11ヶ月 0 Electric Barrier Fish Clearing photo 11ヶ月 0 The Harpersfield Covered Bridge and sea lamprey barrier in the Grand River, Ohio. photo 11ヶ月 0 The sea lamprey barrier makes for good fishing! photo 11ヶ月 0 The Harpersfield Dam on the Grand River in Ohio Serves as a Barrier to Sea Lamprey Migration photo 11ヶ月 0 Electric Barrier Testing photo 11ヶ月 0 Down the Boardman River Fish Ladder photo 11ヶ月 0 Electric Barrier Fish Clearing photo 11ヶ月 0 Out the Boardman Ladder photo 11ヶ月 0 Transition to Sustainable Wind Energy photo 12ヶ月 0 Fish Barrier Construction photo 12ヶ月 0 Three in one photo 12ヶ月 0 Project 365 #18: 180114 Through The Barricades photo 12ヶ月 0 Door Metal photo 1年以上 0 Door Metal photo 2年弱 0 Door Metal photo 1年以上 0 Door Metal photo 2年弱 0 Door Metal photo 2年弱 0 Door Metal photo 2年弱 0 Door Metal photo 2年弱 1 Door Metal photo 2年弱 0 Door Metal photo 2年弱 0 Door Metal photo 2年弱 0 Door Metal photo 1年以上 0 Door Metal photo 2年弱 1