Oil is introduced in the food chain Facts
After the explosion on an oil rig Deepwater Horizon April 20, 2010 in the Gulf of Mexico, scientists have tried to understand the severity of the catastrophe. For several months, crude oil leaked into the water in the amount of 53 thousand barrels per day, while the oil well could not be shut off. According to new data, the oil got into the oceanic food chain through zooplankton.
Zooplankton — small animal-borne water currents — serves as food for young fish and shrimp, and a channel movement of contaminants into the food chain. The study confirmed that oil not only negatively affect the ecosystem of the Gulf, but also become part of the food chain after the closure of the well.
Oil, being a complex mixture of hydrocarbons and other substances that contain polycyclic aromatic hydrocarbons, that can help you detect oil and determine its source. This is how the researchers were able to identify the unique traces of oil from the Deep Water Horizon well in zooplankton. However, the degree of infection could not be determined, because in different places of the toxic substance was different, due to the constant movement of zooplankton.
The study was conducted of East Carolina University, along with scientists, University of Maryland and Oregon, Georgia Institute of Technology, as well as representatives of Geological Surveying and Mapping USA. The results of this work were published in February 2012 in the periodical Geographical Research Letters.