Bio-acoustic fish fence expected to be operational this fall : 無料・フリー素材/写真
Bio-acoustic fish fence expected to be operational this fall / NashvilleCorps
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | (Left to right) Josh Tompkins, fisheries biologist; Nathan Rister, fisheries technician; and Matt Combs, fisheries biologist; Kentucky Department of Fish and Wildlife Resources Agency, demonstrate electrofishing for Asian Carp on the Cumberland River next to Barkley Dam in Grand Rivers, Ky., July 30, 2019. The U.S. Army Corps of Engineers, U.S. Fish and Wildlife Service, Kentucky Department of Fish and Wildlife Resources, U.S. Geological Survey and Tennessee Wildlife Resources Agency are collaborating on the deployment of a bio-acoustic fish fence on the downstream side of Barkley Lock as part of a test of this sound deterrent to reduce the use of the locks by Asian Carp. (USACE photo by Lee Roberts) |
| 撮影日 | 2019-07-30 05:50:05 |
| 撮影者 | NashvilleCorps |
| タグ | |
| 撮影地 | Grand Rivers, Kentucky, United States 地図 |
| カメラ | NIKON D810 , NIKON CORPORATION |
| 露出 | 0.004 sec (1/250) |
| 開放F値 | f/8.0 |
| 焦点距離 | 70 mm |