On Sunday Roger & I went for a walk to Myrtle Rocks at low tide (around 5:30 PM). What an (educational) adventure! (If you click on the pictures, they should open so you can see the big version.)
What, in the picture, looks like sand is mostly rocks and some sand heavily littered with mussel, clam & oyster shells that the seagulls have dropped on the rocks to break them open. There are also lots of huge unopened oysters covered with barnacles. We found an oyster fused with a clam shell; from what we could tell, the oyster was still inside. I think I found two oysters fused together, both open, long ago eaten--is there such a thing as conjoined oysters?
**Correction: Silly me--the only people who can gather oysters from oyster leases are the people who hold the leases. We'd have to get licenses to gather oysters from public beaches.
In the first tidal pools we stopped to observe, we saw plenty of movement--seaweed, debris in the current, and little animals moving around. Mostly the little animals were crabs. The largest one we saw was about the size of a tooney. Can you find the crab in this picture?
And how many can you find in this picture?
And here's how we came to understand that the white and yellow sand dollars weren't alive:
See the purple one? That's what a live sand dollar looks like. And once we saw one, we saw them everywhere. If you touch them, their shells are rough going in one direction and smooth (almost velvety) going the other direction. And they shimmer as their cilia move, which my camera still pictures didn't capture very well.
This is how they live, in huge masses burrowed in the sand.
I also learned that clams spurt spouts of water up from where they hide in the sand. My attempts to catch that in action didn't turn out so well, but it was fun watching the vast landscape of barnacled rocks, sand and shells spitting up playful little geysers.
And the last of the pictures are also of a purple sea beast: starfish. Many of them were hiding under rocks, but a couple brave ones were out basking in the sun.
Oh, and about those crab pictures:
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