The main reason behind such disastrous decline of deep-sea species is the rising global warming that is destroying coral-and that loss of top predators is knocking ocean ecosystems out of whack. As oceans are a key driver of the climate processes that make Earth inhabitable the danger lurking on ocean could be fatal to human beings also.
It is fact that fish are an important protein source for people everywhere and about 100 million people who live along coastlines of tropical developing countries earn their livelihood from the sea. It is the human beings who destroy the oceans through consumption and pollution. Oceanographer Sylvia Earle estimates about 100 million tons of wildlife are taken out from the sea each year. There is no denying fact that commercial fishing boats catch virtually everything that swims by in gill nets that act as invisible underwater fences or on 60-mile longlines.
Fishing with advance technology are rapidly emptying the sea, disrupting food chains fine-tuned over millions of years. It is found that heavy nets used by industrial bottom trawlers ravage crucial habitat, ripping up sea grasses and coral forests that are up to 2,000 years old.
Even the water quality is also going ever-poorer due to pollution running off the land or dumped at sea. It si also noted that nutrients, mostly fertilizers and sewage, have created 146 “dead zones” in the world’s oceans, with oxygen levels so low that marine life cannot survive.
Biologist Boris Worm in his research mentions that all commercial seafood species could collapse within 40 years due to overfishing, loss of habitat, and pollution. Now another pollutant carbon dioxide is also on the radar of scientists to scale its impact over the oceans. Joint efforts from all the nations would save the world-wide ocean and its life.
