If the turtles don't lay eggs until they are around 25 years old they must normally have quite a long life span MB?
The following is information I found on Wikipedia. I'm sure it's information you are already familiar with MB but for others who might be interested....
Some Kemp's ridleys were airlifted from Mexico after the 1979 blowout of the Ixtoc 1 rig, which spilled millions of gallons of oil into the Gulf of Mexico.
The Deepwater Horizon oil spill menaces a wide variety of marine life, from dolphins to blue crabs. Since April 30, 2010, 10 days after the accident on the Deepwater Horizon, they have recorded 156 sea turtle deaths; most of the turtles were Kemp’s ridleys. The National Oceanic and Atmospheric Administration expanded a fishing ban in the Gulf of Mexico because of the spreading oil. Louisiana Department of Wildlife and Fisheries biologists and enforcement agents have rescued Kemp's ridleys in Grand Isle.
Of the endangered marine species that frequent Gulf waters, only the Kemp’s ridley relies on the region as its sole breeding ground.
As part of the effort to save the species from some of the devastating effects of the Deepwater Horizon oil spill, scientists have begun taking eggs from their nests and incubating them elsewhere. Sixty-seven eggs were collected from a nest along the Florida Panhandle on June 26, 2010, and brought to a temperature-controlled warehouse at NASA’s Kennedy Space Center, but only 56 hatched. State and federal officials plan to bring thousands more eggs for incubation in the coming months.
The overall plan is to pluck some 70,000 eggs from sea turtle nests on beaches across Alabama and Florida before they hatch and swim out into the oil from the April 20 Deepwater Horizon rig explosion off Louisiana. NASA currently has about 1,100 eggs at the space center site incubating.