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Sea Urchin Barrens
The Sea Urchins used to be kept in check by sea otters. Now there are so many they have eaten almost all of their primary food (kelp) on the lower parts of the bottom. The Sea Urchins now come out of the water to eat the highest growing kelps. Species: Strongylocentrotus franciscanus (Red Sea Urchin)
John Harvey Photo > John's Overnight Page > Haida Gwaii > Tanu > Sea Urchin Barrens
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Blood Star With Purple Sea Urchins
I'm surprised to see the purple sea urchins out like this - I'm used to them tightly packed into cracks in the rocks. John Harvey Photo > John's Overnight Page > Haida Gwaii > SGang Gwaay > Blood Star With Purple Sea Urchins
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Green Sea Eurchins
This is what happens when you turn the flash on. Species: Strongylocentrotus droebachiensis (Green Sea Urchin)
John Harvey Photo > John's Overnight Page > Desolation Sound > Green Sea Eurchins
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Swimming Over Spikes
Swimming Over Spikes John Harvey Photo > Trips out of the Country > Vietnam > Pho Quoc > Swimming Over Spikes
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Sea Urchins Grazing
I'm pretty sure this is Diadema Genius. I'm less sure about setosum but it does match what I'm seeing on the internet. At the time, I thought these were feeding on the coral but from what I've read, they feed on algae. Species: Diadema setosum (Setosum Spined Urchin)
John Harvey Photo > Trips out of the Country > Vietnam > Pho Quoc > Sea Urchins Grazing
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