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A year after an oil spill in the Gulf of Mexico, scientists and biologists are getting their first real idea of how much damage was done to the regionís population of sea turtles as the females begin heading to coastal shores to nest. The greatest concern has been for the Kemps ridley, the smallest sea turtle and the most endangered.

The first research to actively analyze adult male sea turtles (Caretta caretta) using satellite tracking to link geography with pollutants has revealed the potential risks posed to this threatened species by manmade chemicals. The research, published today in Environmental Toxicology and Chemistry, examines the different levels of chemicals in the blood of both migratory and residential turtles.