AP PROVIDES ACCESS TO THIS PUBLICLY DISTRIBUTED HANDOUT PHOTO PROVIDED BY LSU AGCENTER FOR EDITORIAL PURPOSES ONLY.
In this photo provided by LSU AgCenter, LSU Agricultural Center entomologist Linda Hooper-Bui leans out from a boat to take soil samples as graduate student Benjamin Adams preserves samples collected June 5, 2011, in southwest Bay Jimmy in Plaquemines Parish. Stalks of marsh grass killed by the spill poke from the soil. Hooper-Bui is leading a study to look at the spill's effect on insect and spider populations in Louisiana marshes. (AP Photo/ LSU AgCenter, Xuan Chen via Hooper-Bui)