by Barbara Callahan
-USA-
On April 20, 2010 the drilling rig the Deepwater Horizon - owned by Transocean, the world’s largest offshore oil drilling contractor, and leased by the multinational oil company BP - exploded approximately fifty miles off the Louisiana coast in 5,000 ft of water. The resulting ocean floor rupture has been continuously gushing crude oil into the Gulf of Mexico for the past four weeks. In a closed-door briefing with members of the US Congress, BP officials conceded the rupture could be spewing as much as 60,000 barrels a day. Many officials worry the leak could go on for months.
• Image of an oiled Pelican. Photo courtesy of the author. • It is still too early to determine what impact this oil spill will have on the wildlife of the Gulf Region – not only on the mega-fauna, such as the birds, cetaceans and turtles, but also on the fish and fisheries in the region. As with the Exxon Valdez in Alaska, there will be impacts on the wildlife for decades to come and an entire group of scientists will be needed to study the area in detail to determine the loss of specific populations, genetic diversity, whole age classes of certain animals, and the potential loss of productive fisheries. After Exxon Valdez many species were impacted. While some have returned to pre-spill population levels, there are others that have not recovered, such as the pigeon guillemot.