And you Like seaweed

And the fish have grazed the algae, so the turf of algae is a little lower.

Here's some algae in the foreground ...

The things on the ground are algae.

So this is the infamous Caulerpa taxifolia, the so called killer algae.

And that's because the urchins eat kelp.

The Sargasso Sea, for example, is not a sea bounded by coastlines, but it is bounded by oceanic currents that contain and envelope this wealth of sargassum that grows and aggregates there.

And within a few months after that sea urchin dying, the seaweed started to grow.

Zoning of algae beds in the Galápogos Islands

There's no coral, algae growing on it, and the water's pea soup.

This is from the coast of Brittany, which is being enveloped in this green, algal slime.

But the Sargasso Sea, the same way it aggregates sargassum weed, actually is pulling in the plastic from throughout the region.

So why would a single celled alga need to be able to produce light?

This one disguises itself as floating algae.

After a few years, between five and seven years, fish come back, they eat the urchins, and then the algae grow again.

The first is that we have fossils of algae from 3.5 billion years ago.

The Sargasso Sea is also a wondrous place for the aggregation of these unique species that have developed to mimic the sargassum habitat.

As soon as they get under those rafts of kelp, the exfoliating cleaner fish come.

Spinning down to someplace a little bit cooler than here right now the Ross Sea in the Southern Ocean.

She was killed dead, darling. Went down like a rock.

Rivers washed sediment into the seas, until the organic remains of the algae were buried.

This is my baseline This is the Mediterranean coast with no fish, bare rock and lots of sea urchins that like to eat the algae.

But when the fish came back and began predating and controlling the urchin population, low and behold, kelp forests emerged in shallow water.

When it's all said and done, it's got to look like seaweed, said the owner.

And the reason was because of overfishing, and the fact that a last common grazer, a sea urchin, died.

The coral reefs of the north coast of Jamaica have a few percent live coral cover and a lot of seaweed and slime.

Just look at the colours of the sea and the sky, and the pink and green buildings.

These are things that are getting into our food chain because of these blooms.

So that light was made by a bioluminescent dinoflagellate, a single celled alga.

Sargasso Sea's three million square miles of floating forest is being gathered up to feed cows.

And under those kelps this is why the Molas come there because it's spa time for the Molas there.

And the algae give the corals sugar, and the corals give the algae nutrients and protection.

It was called Prototaxites.

There's a certain alga that swims in the wild, and it needs to navigate towards light in order to photosynthesize optimally.

This is just a simple list of some of the types of poisons that come out of these harmful algal blooms shellfish poisoning,fish ciguatera, diarrheic shellfish poisoning you don't want to know about that neurotoxic shellfish poisoning, paralytic shellfish poisoning.

But there has just been a study that was released in February that showed there are 200,000 pieces of plastic per square kilometer now floating in the surface of the Sargasso Sea, and that is affecting the habitat for the many species in their juvenile stages who come to the Sargasso Sea for its protection and its food.

She had found a little isolated beach... where the sea was transparent... and the sand pink.

Now, in this slide the white is chalk, and this chalk was deposited in a warm ocean.

It can smash and suck in sea sand and deep sea rocks at a speed of 6,000 cubic meters per hour, and then discharge the particles to a location on the sea up to 15 kilometers away.

(women) For bags, pink for shoes

Think pink, think pink, think pink!

This is another version of that. This is a sea dragon, and the one on the bottom, the blue one, is a juvenile that has not yet swallowed the acid, has not yet taken in the brown green algae pond scum into its body to give it energy.

Just an amazing animal, it can change color and texture to match the surroundings. Watch him blend right into this algae.

One capful makes a tubful.

A sincere mind does not seek words.