No. | SUBJECT | LOCATION | PHOTOGRAPHER
SOURCE | IMAGE |
SIZE IN BYTES
Medium/Large |
| 265 | EPA vessel, "Mudpuppy"
- taking samples of sediment from an area of concern (AOC)" | Presque Isle
Bay Lake Erie | Steve Curcio, Pennsylvania Department of Environmental Resources |  | 18889/203617 |
| 266 | University
of Michigan research vessel, "Laurentian" - rinsing plankton net | Lake
Michigan | Center for Great Lakes and Aquatic Sciences |  | 22250/253874 |
| 267 | Research vessel "Musky II" | Lake
Erie | National Biological Service, Great Lakes Science Center |  | 17221/217459 |
| 268 | Lowering
box core sampler | Lake Superior | Minnesota Sea Grant |  | 32493/153530 |
| 269 | Taking
sediment sample from box core sampler | Lake Superior | Minnesota
Sea Grant |  | 26121/221527 |
| 270 | Vertical
sampler being raised from lake | Lake Superior | Minnesota Sea Grant |  | 31410/280424 |
| 271 | Remotely
operated vehicle (ROV) | Great Lakes | Minnesota Sea Grant |  | 28389/216506 |
| 272 | Johnson Sea Link II submersible | Great
Lakes | Minnesota Sea Grant, Joel Baker |  | 28990/291068 |
| 273 | Diver
- underwater measuring | Isle Royle Lake Superior | Kenneth J. Vrana |  | 18403/213912 |
| 274 | EPA
research vessel, "Lake Guardian" | Great Lakes | US Environmental
Protection Agency, Philip Hoffman |  | 17823/251231 |
| 275 | EPA research vessel, "Roger Simons" | Great Lakes | US
Environmental Protection Agency, Paul Bertram |  | 36336/282806 |
| 276 | EPA research vessel, "Roger Simons" -- Rosette Sampler | Great
Lakes | US Environmental Protection Agency, Paul Bertram |  | 27325/269717 |
| 277 | Sediment sampling aboard
EPA research vessel, "Mudpuppy" | Indiana Harbor Canal East Chicago, Indiana | US
Environmental Protection Agency, ARCS Program |  | 29899/128321 |
| 278 | Sediment sampling aboard
EPA research vessel, "Mudpuppy" | Indiana Harbor Canal East Chicago, Indiana | US
Environmental Protection Agency, ARCS Program |  | 34852/266625 |
| 279 | Sediment sampling aboard
EPA research vessel, "Mudpuppy" | Indiana Harbor Canal East Chicago, Indiana | US
Environmental Protection Agency, ARCS Program |  | 30800/245950 |
| 280 | GLERL research vessel, "Shenehon" | Great
Lakes | NOAA Great Lakes Environmental Research Lab (GLERL) |  | 20065/240679 |
