You're the worst! You squid head!

You squid head!

Vibrio fischeri lives in this squid.

In the next bit, we're going to see a couple squid.

Both short fin squid and common squid stocks are considered to be overexploited in the Patagonian Shelf area.

So for the deep sea squid hunt,

What happened to squid head and destroying us?

But the black eyed squid takes the prize.

The reason the squid is willing to put up with these shenanigans is because it wants that light.

Cuttlefish. I love cuttlefish. This is a Giant Australian Cuttlefish.

This squid is kinda hard to chew. You like that, huh?

Giant squid (genus Architeuthis) is a large, deep ocean dwelling squid that can grow up to 13 meters (43 feet) naturally.

Most of our revenue currently comes from the squid fisheries around the Falklands.

Now this guy, this bigfin squid, is seven meters in length.

Now, I'm told that's not not just a squid phenomenon with males, but I don't know.

The Patagonian Shelf is the principal fishing ground for short fin squid and catches (including common squid) were 550,000 metric tons in 1990.

Again, another plug for the animals in the ocean, Vibrio fischeri lives in this squid.

And it opens and closes the shutter so the amount of light coming out of the bottom which is made by the bacterium exactly matches how much light hits the squid's back, so the squid doesn't make a shadow.

It took only 10 seconds for me to find !! The image looks very similar to me, don't they?

I said before that eating cuttlefish at night is equivalent to eating poison, didn't I?

In 1992 93, there were considerable fears that income from the sale of fishing licences, notably for squid, would be badly affected by competition from Argentina, in whose waters the squid are also found.

These are squid. Now males, when they fight, if they're really aggressive, they turn white.

Strong lamps, up to 5000 W each, are used to attract the squid.

As the squid are caught they are transferred by chutes to the processing plant of the vessel.

Both short fin squid and common squid stocks were considered to have been overexploited in the Patagonian Shelf area.

19. In the South East Pacific there is a significant stock of jumbo flying squid.

These stocks include short fin squid, hake, southern blue whiting and grenadier.

And if we were to look at the prey of that squid, the tiny little krill that they're eating, we would instead only get the highest frequencies back.

Haley's comet or giant squids or the size of the world's biggest pumpkin pie or whatever it was.

Development investment has been very dependent on the exploitation of squid and new areas of growth have not yet been identified.

What the squid has developed is a shutter that can open and close over this specialized light organ housing the bacteria.

And as the day goes by the bacteria double, they release the molecule, and then light comes on at night, exactly when the squid wants it.

Now, here's a male on the left and a female on the right, and the male has managed to split his coloration so the female only always sees the kinder, gentler squid in him.

Bingo! Now I'm told that's not just a squid phenomenon with males, but I don't know.

Now males, when they fight, if they're really aggressive, they turn white.

There's jellyfish, there's squid, there's a whole lot of different crustaceans, there's even fish that can do this.

He noted that the spectators of the giant squid image coincide with those of the photo below, uploaded to 4thmedia.org in 2011

A lot of them can release their luciferin or luferase in the water just the way a squid or an octopus will release an ink cloud.

For example, this shrimp releases its bioluminescent chemicals into the water just the way a squid or an octopus would release an ink cloud.

The way that this symbiosis works is that this little squid lives just off the coast of Hawaii, just in sort of shallow knee deep water.

On bright nights when there is lots of starlight or moonlight that light can penetrate the depth of the water the squid lives in, since it's just in those couple feet of water.

But then if you think about it, the squid has this terrible problem because it's got this dying, thick culture of bacteria and it can't sustain that.

Now the bacteria are dilute, that little hormone molecule is gone, so they're not making light but of course the squid doesn't care. It's asleep in the sand.

It was Mike that got me invited to the squid summit, a gathering of squid experts at the Discovery Channel that summer during Shark Week.

What you are looking at is the Hawaiian Bobtail Squid, and it's been turned on its back, and what I hope you can see are these two glowing lobes and these house the Vibrio fischeri cells, they live in there, at high cell number that molecule is there, and they're making light.