DMK MP Kanimozhi on Thursday in Parliament urged the Centre to immediately intervene to clear the oil slick along the coastal Chennai. Various marine species including fishes and turtles have died in the 35 km-long coastline affected by oil spill. She also alleged of abysmally low coordination among port and environment departments as well as coast guard in clearing the spilt crude oil. Lack of trained manpower and availability machinery hampered the cleaning drive, she claimed.