That's why every year I look forward to dragging my students out onto the mudflats. Of course, we investigate a lot of things -- clams and worms are pretty important parts of this ecosystem, so we devote some good time to digging down into the muck looking for them.
But really, I come for the moon snails. They never fail to get exclamations of glee from the students (and me, frankly).
We run two labs a week. On both of our trips out to the flats this year, we barely found a snail. Amy Johnson, the professor I work with for the class, found one on Tuesday just as we were leaving. And Wednesday, a student found a moon snail at the very last moment -- as we were climbing up the stairs, she was the last off the flat. Her call of "what's this? Hey, is this a moon snail?" had us all running back to see. What luck -- a moon snail each lab day. Hooray!
We always start the day by simply hanging off a dock and watching the fouling community. You never know what you'll find!
I love how nerdy my students are. Soooo nerdy.
While on the dock, we often see barnacles feeding:
As soon as the tide is far enough out, we hit the flats. I tell them right away to start searching for moon snails. At first they think I'm joking about these giant, ravenous snails out here, but soon we find evidence:
Shells from moon snails and waved whelks (also badass predators).
This hole was drilled by a moon snail. Whoa.
We are forced to do work rather than focusing exclusively on moon snails. Here we are watching a razor clam try to dig itself back into the sediment.
It did not succeed; we took it home to my tanks.
Amy explaining how to catch a worm. She's an expert in this stuff.
Starting to dig. What did we find?
A sipunculid! Peanut worm!
At this point we got into the thick muck. For some, it was too much.
Donny, having a good laugh after taking a tumble. Luckily he was in a rain suit!
And FINALLY, we found a moon snail. Hooray Amy!
And brought it home:
Moon snail with its foot wrapped around a razor clam. Yum yum!
I wonder if they're wicked good in a chowda'?
ReplyDeleteDamon asks the same question every year!
ReplyDeleteI'll pass on finding out.