Reefs
in sentence
211 examples of Reefs in a sentence
And on top of the coral
reefs
are sand banks.
We're getting terrible harm to some of the coral reefs, like off of Australia.
And I ended up in Jamaica, in the West Indies, where the coral
reefs
were really among the most extraordinary, structurally, that I ever saw in my life.
Those
reefs
at Discovery Bay, Jamaica were the most studied coral
reefs
in the world for 20 years.
People came to study our
reefs
from Australia, which is sort of funny because now we go to theirs.
And the view of scientists about how coral
reefs
work, how they ought to be, was based on these
reefs
without any fish.
And the
reefs
disappeared, and new islands formed, and we thought, "Well, we're real smart.
The coral
reefs
of the north coast of Jamaica have a few percent live coral cover and a lot of seaweed and slime.
And that's more or less the story of the coral
reefs
of the Caribbean, and increasingly, tragically, the coral
reefs
worldwide.
And where the diver is, this is probably where most of the
reefs
of the world are now, with very few corals, algae overgrowing the corals, lots of bacteria, and where the large animals are gone.
And this is something that is very unusual in today's coral
reefs.
This view of the world is a consequence of having studied degraded
reefs.
When we went to pristine reefs, we realized that the natural world was upside down; this pyramid was inverted.
If we don't have fishing because these
reefs
are protected by law or their remoteness, this is great.
What we found in coral
reefs
is that the inverted pyramid is the equivalent of the Serengeti, with five lions per wildebeest.
But at least on coral
reefs
are systems where there is a bottom component with structure.
But we have started studying pristine
reefs
only very recently.
I was led to this question while studying coral reefs, which support millions of people through fisheries and tourism here in Africa and around the world.
But coral
reefs
depend on fish that perform a critical job by eating algae.
Because if left unchecked, these algae can kill coral and take over entire coral reefs, a costly change that is difficult or impossible to reverse.
But these findings also suggest that overfishing, a common problem in coral reefs, not only removes fish, but it could break up the social network of remaining fish, which may hide more and eat less algae because they're missing critical information.
And this would make coral
reefs
more vulnerable than we currently predict.
So remarkably, fish social networks allow the actions of one to spread to many and could affect entire coral reefs, which feed millions of us and support the global economy for all of us.
Now, our discovery points us towards better ways to sustainably manage coral reefs, but it also shows us, we humans are not just affected by the actions of other humans, but we could be affected by the actions of individual fish on a distant coral reef through their simple copying behavior.
Coral
reefs
are growing slower in some places because of this problem.
The main framework material of coral
reefs
is calcium carbonate.
And on coral reefs, where some of the main framework organisms disappear, we will see a major loss of marine biodiversity.
And what I've done is, I've looked at both environments like the coffeehouse, I've looked at media environments like the World Wide Web, that have been extraordinarily innovative; I've gone back to the history of the first cities; I've even gone to biological environments, like coral
reefs
and rain forests, that involve unusual levels of biological innovation.
Jump to 'The Straits of San Sebastian Present Day' where two divers are exploring the beautiful underwater coral
reefs
that are rich in wildlife, the come across the sunken wreck of the El Diablo & explore it but are attacked & killed by something that looks like a vicious eel.
We (my wife and I) really enjoyed this documentary movie on the fragile coral
reefs.
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