Scientists discover ‘blizzard' silting oil on bottom of Gulf, Sarasota Herald Tribune by Kate Spinner, May 26, 2011:
[...] Traces of oil were found in the top layer of the sediments, as well as single-celled plants and animals, some of which were deformed.
Oily sediments were also found near the Desoto Canyon, a prime fishing area. Near the same area, on the West Florida Slope, other toxic effects on the bottom of the food web have been observed. [...]