WEBVTT

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NOAA Ship Okeanos Explorer is America’s ship for ocean exploration.

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It really represents NOAA’s commitment to collecting baseline information and

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better understanding areas of our ocean that are poorly known or unknown and poorly understood.

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So, for us, that means that we’re looking at places that people have never been, looking at things that people have never seen.

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This is one of our nation’s national marine monuments and we know very little about the fauna in this entire area.

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So in order for our resource managers to be able to better manage these resources, both living and non-living resources, we need to know what’s there.

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There are a lot of places in the world where we have no idea what’s down there or very little idea,

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and especially in the Pacific Ocean, it’s a huge, huge ocean

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and there are many parts of it that have simply never had submersibles or ROVs go down into the bottom.

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So in particular, here in the Mariana Islands, Mariana Trench, we’ve never had any ROV surveys to look at what sorts of species might be living there.

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If we find coral species, are they different species than we find in other places?

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What sort of things are living with the corals?

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They are creating new habitat wherever it is they grow.

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Just think of a tree growing out of the forest, and there are birds and squirrels and butterflies and caterpillars.

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Well, it’s the same thing with the corals.

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We see lots of brittle stars climbing on them, crinoids, shrimp, and fish, and octopus may lay their eggs in the branches of the corals,

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and so the presence of the coral itself actually increases the biodiversity of the species richness of a particular area.

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So, that is one reason why we think that corals are important to focus on, because they show us places in the ocean that are “hotspots of diversity.”

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So much like deep-sea corals provide habitat for other organisms to live on, sponges do as well.

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These are almost like oases for other organisms.

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And in addition to that, some of these organisms actually are the source of chemicals

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that can be developed into drugs that can be used to treat diseases like cancer, Alzheimer’s, and infectious diseases.

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And the reason for that is that these sponges are attached to the bottom,

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they can’t get away from something that’s trying to eat them or grow over top of them.

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So they’ve evolved a very sophisticated chemical defense system.

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On this expedition alone, on this leg of this expedition alone, we have observed, in place,

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in their natural environments, organisms that are interacting with each other in ways that we didn’t know existed.

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Or in ways that maybe we just hypothesized might be happening.

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To me, the excitement has been seeing the diversity of life in the deep sea.

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And some places, the real abundance, not only the diversity, but the abundance of this diverse fauna in the deep sea.

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I remember one dive in particular just a few days ago where we weren’t expecting to see this at all,

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but it was just like, massive sponge, massive coral heaven in the deep sea that I just never expected to see.

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And so when people say there’s not much growing in the deep sea, that’s just not true.

