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Personnel from the U.S. Army Engineer Research and Development Center and U.S. Geological Survey watch as a 350-ton crane lowers the 105-foot-long weldment, or underwater Acoustic Deterrent System, into the lock approach of Lock 19 near Keokuk, Iowa, Feb. 3, 2021. Laboratory-tested sounds that proved to be irritating to invasive Asian carp will be broadcast underwater from the weldment as part of a study to evaluate fish behavior.
| Date Taken: | 02.03.2021 |
| Date Posted: | 03.29.2021 09:55 |
| Photo ID: | 6571949 |
| VIRIN: | 210203-A-A1403-007 |
| Resolution: | 1536x1024 |
| Size: | 512.44 KB |
| Location: | KEOKUK, IOWA, US |
| Web Views: | 23 |
| Downloads: | 4 |
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