A Muddy River Walk To Identify a Clump

Last September I had a good day out on the boat. Low tide offered some interesting sea life finds. I was so excited by getting a really good hermit crab video, that I neglected to write about another aspect of the trip. I took a long walk across the muddy flats to inspect a large object in the distance.

Our day out on the water proved to be one of discovery.

First, at the boat ramp, while my son parked the truck and trailer, I found a bubble shell. It’s the only shell of it’s kind I’ve ever seen.

We stopped at an unnamed island along the Indian River where I’d previously seen some very large Tulip shells. This is where I took the hermit crab video and began to wonder if hermit crabs could oust a mollusk from it’s shell.

Three Sisters islands

After we enjoyed that little island, we went just north a bit to Three Sisters. This is one of my favorite places to beach-comb and take photos when the tide is low. It’s also a good place to get into the water to cool off on a hot day.

Must Identify That Clump

The tide was very low and we could walk a long way. Lots of muddy ground was exposed which meant there would be lots of marine life to see.

Off in the distance, in an area where I’d never walked, there was something large sitting on the mud. Any time something stands out like that it’s worth a look. I figured it might be a big horse conch and hoped it was not a dead animal.

It turned out to be a clump of something I can’t identify. It was hard and jagged, like a piece of coral maybe. I took these photos and then walked back toward the boat.

Truthfully, the walk across the mud to identify the clump was a bit nerve-racking. The mud can be very soft. As you can see in the photo below, it’s easy to simply sink and get sucked in. It’s why I am careful about where I jump out of the boat.

Not only did I have the mud to worry about, but there were bumps just sticking out of the water. Anyone who knows what an alligator in water looks like would agree with me that these bumps look similar. Supposedly there are no gators in this area of the river, but they do live in the river just south of here near Cape Canaveral. I once discovered an alligator skull down there. I’m always on the look out, because you never know in Florida.

Seashells and Oysters

I sometimes find interesting seashells among the oyster beds but the mud is especially soft and the oysters are sharp. The hermit crabs like to carry their shells into these beds. The oysters are constantly snapping and gurgling while they feed and filter the water.

This area is loaded with oysters which mostly grown in clumps around the base of the mangroves. Oyster shells are sharp and can damage boat bottoms, not to mention feet! This is not an island paradise.

Mangrove island surrounded by oysters

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Big Whelks, Oysters and Something Unexpected

Broken and faded, my big whelk shell harbors a little secret.

One of the shells in my photo below contains a creature hiding within. He was so secretive that I never knew he was there for a full day after bringing these shells home. So here’s the story…

broken whelks big seashells
Big Whelks found along Indian River

My sons and I went boating in our little Gheenoe a couple days ago. It was not windy at our house, but once we got over to the River we saw whitecaps and knew we would be dealing with wind. Windy conditions and rough water are not a big deal unless you happen to be traveling in a canoe with a motor. With three of us in the little boat it won’t go fast, and because it sits so low in the water, we tend to get wet.

Because of this we didn’t travel far. The closest big island is where we stopped, and I got out to search for seashells. The boys used the trolling motor and went just offshore to do some fishing.   We had the place to ourselves.

The shell hunt began. First I walked the inner side of the island which was extremely windy. I saw a lot of horseshoe crabs – alive and dead, and of course oysters. More than once I’ve been faked out when I think I’ve discovered a big shell in the shallows only to find it’s a nasty clump of oysters!

oysters attached to tree roots
Oysters growing on tree roots along the island coastline

All the cute little shells along the shoreline were moving. Hermit crabs take up residence and steal all the good seashells for themselves. Each beautiful specimen I came across was inhabited, so I took photos and had to be happy with that. Those seashell finds I will share on my next post.

On the inland side of the island, where I was more sheltered from the wind, I found something that made my heart race. A big yellow seashell was up on shore and looked to be buried in the sand.  A shell on the shore means the mollusk is not inside.  Sea snails live in the water.   The fact that it was not moving gave me the impression that a hermit crab was not inside. I was excited, but I should have known better.  I took this photo before picking it up.  Doesn’t it look like it could be a great find?
yellow w WM
Unfortunately the underneath of that shell (which I believe is a knobbed whelk) was completely broken open, so what I saw in the sand is all there was to the shell.   The mollusk had died and the broken shell did not give shelter for a crab.  In other words it was useless to sea life.  I took it home, along with the other broken shells I found.

But the big surprise came the day after our trip to the island, when a hermit crab appeared in the opening of one of the broken shells! Can you guess which shell, from my first photo above?

When I got home I soaked all the shells in water with a small amount of bleach to clean them off.  I left them on the cement deck outside all night and then cleaned them one at a time the next day.  When they were dry, I set them on the table and that is when my son noticed a big hermit crab emerging from the one below!
Screen Shot 2017-04-01 at 11.19.38 AM
Yup, a good size hermit crab is inside the top of this broken, faded and worn Channeled whelk shell.  The inner top of this shell must be hollow and he had scrunched himself into that area.  We could see a bit of his legs through that top broken piece.

We did the only thing we could do to help the crab survive.  We drove over to the River and tossed the shell back into the sea water.

You can see pictures of the Channeled Whelk as it is before it becomes as destroyed as mine is on the “i love shelling” site, where Pam (the blog owner) is fortunate to live and travel to great shelling places.  She writes from the fabulous Gulf Coast, Sanibel area, where gorgeous seashells are everywhere.

I have to work hard just to find these broken ones!  But it’s fun, and who knows, one day I may find something spectacular out there.