ocean is the natural environment for millions of species. But an
array of human activities is threatening these riches and today
more than three quarters of our oceans are overexploited.
are simply too many people trying to fish in the ocean, and over-fishing
upsets the balance of the entire ecosystem.
Some of the most popular fish to eat are groupers, snappers and
jacks - you see lots of them in Ocean wonderland 3D - but
there are many reefs in the world where you’d be lucky to see one!
In a few places, especially in the Caribbean and Florida, so many
fish have been taken that the entire ecosystem is unbalanced.
fishermen use explosives to catch fish. By creating a massive blast
they kill all the fish over a wide area. The blast also destroys
the coral. It takes years for the reef to recover and fishermen
will unwittingly destroy the conditions necessary to sustain fish
for future generations.
There is therefore an urgent need to protect our oceans from over-exploitation,
and to create safe havens for marine habitats and life forms to