150728-A-IF251-065 : 無料・フリー素材/写真
150728-A-IF251-065 / USACE Buffalo
| ライセンス | クリエイティブ・コモンズ 表示-改変禁止 2.1 |
|---|---|
| 説明 | To control and eradicate the aggressive aquatic plant hydrilla, (Hydrilla verticillata) present in Tonawanda Creek/Erie Canal, New York the U.S. Army Corps of Engineers (USACE), Buffalo District conducted treatment with the aquatic herbicide, endothall (Aquathol K) in the Erie Canal in North Tonawanda, New York during the week of July 27, 2015. Hydrilla is a highly invasive aquatic plant species that was first introduced to the southern United States in the 1960s from Asia. More recently there have been a number of introductions to the glacial lakes of the Northeast and Midwest. Many of these sites are also being treated to eradicate hydrilla. Hydrilla infestations have potential to cause significant ecological and economic losses and the Erie Canal represents a major conduit for spread of hydrilla eastward to the Finger Lakes region and westward into the Great Lakes. |
| 撮影日 | 2015-07-28 13:07:59 |
| 撮影者 | USACE Buffalo |
| タグ | |
| 撮影地 | |
| カメラ | iPad Air 2 , Apple |
| 露出 | 0.001 sec (1/840) |
| 開放F値 | f/2.4 |
| 焦点距離 | 1630 |