In this figure we can see clearly very bad condition of sea water.
The oil spills are very harmful to marine birds mammals as well as the under water various fishes, shellfish, sharks etc. there are oil destroy the insulating ability of fur bearing mammals such as sea otters and the water repellent of a bird’s features , thus the abilities, thus exposing these creaturess to the harsh elements.
Two cargo ships collided off the Mumbai coast on August 7 causing an oil spill that spread quickly through Maharashtra’s coastline. MS,c Chitra ruptured its tank when it hit incoming MV Khalijia and ran aground at Colaba, near Prongs Reef Lighthouse. The vessel contained about 1,200 tonnes of fuel oil in its tanks of which 800 tonnes spilled into the Arabian Sea before the leaks could be plugged two days later.
BAD IMPACT ON THE SEA FISHES:
Oil destroys the insulating ability of fur-bearing mammals, such as sea otters, and the water repellency of a bird’s feathers, thus exposing these creatures to the harsh elements. Without the ability to repel water and insulate from the cold water, birds and mammals will die from hypothermia.
Juvenile sea turtles can also become trapped in oil and mistake it for food. Dolphins and whales can inhale oil, which can affect lungs, immune function and reproduction. Many birds and animals also ingest oil when they try to clean themselves, which can poison them.
Fish, shellfish, and corals may not be exposed immediately, but can come into contact with oil if it is mixed into the water column — shellfish can also be exposed in the intertidal zone. When exposed to oil, adult fish may experience reduced growth, enlarged livers, changes in heart and respiration rates, fin erosion, and reproduction impairment. Fish eggs and larvae can be especially sensitive to lethal and sublethal impacts. Even when lethal impacts are not observed, oil can make fish and shellfish unsafe for humans to eat.
An oil tanker stationed in Tamil Nadu’s Ennore released at least two tonnes of oil into the sea north of Chennai on Sunday after its fuel hose snapped, the spill occurred at the Kamarajar Port in Ennore, around 20 km from the state capital. An oil spill was reported from the same port in January 2017 after two vessels collided. It had affected 30 km of the coastline, caused significant environmental damage and killed a large number of turtles and hatchlings.
“Preliminary estimate of spilled fuel oil quantity is less than 2 tonnes,” port authorities said in a statement. “The emergency response mechanism was immediately activated and all concerned agencies, including the Coast Guard, swung in action to attend and mitigate the situation.” Raveendran added that 80% of the spilled oil has been contained within the boom – floating barriers installed to contain leaks – and has not spread out into the sea.