Scientists in Mississippi say they have discovered microscopic globules of hydrocarbons, i.e. petroleum, inside the outer shells of blue crab living along the Gulf coast. This discovery appears to show that oil has now entered the food chain. This process cannot be reversed, though measures may be taken to limit the spread of the oil deeper into the local and regional ecosystem.
According to Harlan Kirgan, of the Mississippi Press:
Oil droplets have been found beneath the shells of tiny post-larval blue crabs drifting into Mississippi coastal marshes from offshore waters.
The finding represents one of the first examples of how oil from the Deepwater Horizon spill is moving into the Gulf of Mexico’s food chain. The larval crabs are eaten by all kinds of fish, from speckled trout to whale sharks, as well as by shore birds.
