Mangroves Are Homes to The Shell-makers and Shell Thieves

The shell-makers are the mollusks, or sea snails, which begin life as tiny creatures who will make stunning and intricate homes we call shells. The shell thieves are the hermit crabs who take over the shells once the mollusk has died and left it empty. Let’s be clear, they have to steal these shells to survive, and they don’t kill the owner, just move in once it’s no longer occupied.

Of all the shells I find on my Florida boating and beach-combing journeys, 99% of the gastropods (shells in one piece, not two) are filled with one of these; mollusks / sea snails, or hermit crabs. Rarely do I find a pretty spiral shell which is empty.

Let’s Take a Boat Ride and Find Some Wild Florida Things

Once we launch our flats boat, we head out across the main channel of the Intracoastal Waterway (Indian River where I live) and enter the back channel. The waterway we travel is not as deep, but it is large with numerous islands and shallow canals. It would be very easy to become lost, or turned around in this area. My son has been fishing here for many years so he knows where to go and how to follow the deeper water while running the boat. The water is murky as you can see in my photos, and it is saltwater. On this day in May the water temperature was around 85 degrees. Very warm! We saw many dolphin, but no manatee.

mangroves
Shallow backwater where islands of mangroves and oyster beds thrive in brackish water

We pull up at a canal which is emptying into the larger canal as the tide is being pulled out (photo below). Tides are weird way back here because the water has a long way to go to meet the ocean up at Ponce Inlet. The water can move fast in places depending on what the tides are doing.

In the photo below the water is rushing toward me. The tide is going out. The greenery you see are mangroves. The bottom is sandy and the water is shallow – about to my knees. (There is an excellent article about Florida mangroves at the FDEP (Florida Department of Environmental Protection.)

Indian River backwater canal
A more shallow canal emptying water out as the tide changes

To the right of the photo above I see grass and a sandy bottom just below the water. Soon the sand will dry out while the tide is low. This is where life abounds.

The shell-makers and shell thieves live in the same places as far as I can tell, and they love the mangroves. The conchs and whelks can probably find food in this ecosystem and the hermits can find empty shells. There were no birds here, but we usually do see herons or other birds (sometimes the Roseate Spoonbill) along the edge of the mangroves.

Shallow water around mangroves

We beach the boat in shallow water here and I get out to find sea life to photograph. I expect to find lots of hermit crabs and I do. One is poised at the top of a stalk (below). Others inhabit whelks and conchs (lots of crown conchs) and they all scurry around doing their thing. Sometimes I find groups of hermits together and I don’t know what they are doing except maybe inspecting each other’s shell size. I’m not a scientist, but I know they need to upgrade to bigger shells as they grow.

little shell on stalk in river
This little hermit crab has climbed a stalk in the shallow water

As I begin my walk I immediately see three different shells at my feet. A pear whelk (bottom of photo), big tulip, and crown conch are all scurrying. The sea snails move slowly, but the hermit crabs, which now live in the shells, are quick. I can see their spidery legs pulling the shells along the sand.

hermit crabs in three different shells
Three different shells each inhabited by a hermit crab

Those two shells at the top, in my photo above, meet up and the bigger one seems to be bullying the smaller and pulling at the shell. I plan to do some research on our local hermit crab population and write a post all about it. I most often see the Striped hermit, like the one in my photo. One time I found a Giant red hermit crab and that was awesome! Right now, I don’t know much about the activity of hermit crabs but I often find clumps of them together.

Two hermit crabs underwater
The hermits meet up

I’m always amazed at the various sizes of hermits I find in the wild. The one inside this little shell is very small. I wanted a photo of the shell to maybe identify it, but I don’t know yet what it is.

tiny seashell home to a little hermit crab
Little shell of some sort with a tiny crab inside

Below is a photo of a haven for sea life. In this murky water, which is at the base of the mangrove tree roots, are oysters, small fish, hermit crabs and quite possibly live sea snails.

Haven for oysters, crabs and mollusks
There are many living creatures under this murky water

A little further along and I found higher ground where the red mangrove roots could be seen. At high tide the roots are mostly covered by water. See the oysters attached along the base of the red roots? Oysters are important for filtering the water. We have to be careful not to hit any oyster beds with our boat, and it’s one of the reasons I wear water shoes. Oysters can easily cut feet!

mangrove roots
Oysters cling to mangrove roots

As I walked along, blue crabs scurried out of my way, or ducked into holes in the sand to hide.

blue crab
A blue crab scurries out of a hole in the sand

I saw small fish, but larger fish use these mangrove areas to have their young and find food. Fiddler crabs were abundant on this island and another island we visited which was closer to the Inlet up north.

All those little brown things are tiny Fiddler crabs scurrying into the shadows as I walk by! There had to have been millions on this island…! Fiddler crabs are a favorite food of Sheepshead fish. Other fish probably eat them too.

Fiddler crabs among mangroves
A gazillion fiddler crabs scurrying off into the mangroves

The Best Part of Florida

In my opinion the best part of Florida is where there are few to no people. The mangroves and backwaters, during the weekdays, are peaceful and quiet. It’s like going back in time to the way Florida was before the invasion of people. I imagine this is how it looked to the Indians and explorers. But I think the wildlife was much more abundant when they were here.

Then I catch a glimpse of the high-rise condos along the Eastern horizon and it’s back to reality. I fear for this area because my biggest problem with Florida is it’s seeming lack of consideration for natural habitats. I can’t help but wonder if years from now no one will get to see what I’ve seen today.

condos

Keep Reading Recent Posts

  • An Artist Remembers The Mailbox Inspiration

    One day I had the inspiration to draw and a vine covered mailbox came to mind. Now I sell the image on various products in my Zazzle store.


  • Happy Thanksgiving Cards Customize and Share Online

    Custom Thanksgiving cards to mail or share online. Unique designs created by independent designers mean you are supporting a small business with your purchase.


  • How Important is Our Store zRank in Getting Sales?

    Zazzle introduced a Z-rank a few years ago and designers went nuts trying to improve their ranking. The scale goes from 1-10, with ten being the best. I believe that designers hoped that a higher number would bring better sales because Zazzle would somehow prefer the top-ranked stores. Find your store zRank in the backend…


Going Boating, Catching Fish in February’s Clear Water

On a recent Thursday we had sun and warmth and finally took the boat out. The boat ramp was very busy. I can park the truck and trailer which helps so my son can back the boat away from the ramp and make room for others, but crowded lots make me nervous. If I misjudged while parking, I’m not so sure I could back the thing up! On Thursday I parked fine. Whew!

Riding south on the Indian River in our Hewes Redfisher boat.
Traveling south on the Indian River

It was a beautiful, sunny day and the water was cool and clear. First we stopped at a deep hole and three in our lines. I was using live shrimp and my son used artificial bait. I caught some small trout and a mangrove snapper, and he kept catching Bluefish, after he first caught a Jack. At first he couldn’t identify the fish, but they kept destroying the bait with their teeth – Bluefish have very sharp teeth. That was how he knew what they were.

I don’t think we have ever caught any Bluefish while fishing on the River. After reading this article about Bluefish, I guess I know why. We fish primarily in summer when the water is very warm, and the Bluefish have probably migrated to cooler places by then.

Small bluefish on the hook.
We caught a lot of smaller fish in one of our spots – Bluefish

Three Sisters is a group of three islands in the backwater area of the waterway. One of the islands has a long sandy beach area when the tide is low. When we arrived at Three Sisters the tide was going out and I decided to walk the sandy flats looking for interesting sea life and seashells.

Gray heron spreads his wings on tree roots on the edge of the Indian River.
Wings out! Heron at Three Sisters

Often the birds we see perched in trees, on sign posts, or along the edge of the water will stand with their wings spread out, like the heron in my photo above. I walked all around the sandy area and he stayed right where he was – airing his armpits wing-pits.

Bride on the sand as the tide goes out.
Tide is going out and the birds are enjoying the sandy bottom. This is where I found the seashells pictured below.

The hermit crabs were not at plentiful as they are in summer months, but I did find two little shells that intrigued me. I was only interested in the brown one at first. It had an odd shape that I never see. The dirty tan one is probably a juvenile horse conch, but I’m not sure about that either. Since the horse conch is found in this area, it’s my best guess.

Both shells contained little crabs, so I got some photos on the boat deck and put the shells back on the sand. I’m still not sure what that stubby brown shell is. Coloring is similar to a crown conch, but not the shape.

Two little seashells which are home to hermit crabs
Two little shells – with hermit crabs inside. Got some photos and put them back on the sand.

Coastal plants and flowers are something I need to learn about. One day I will gather all my plant photos to share. I have no idea what this little yellow flower is called, but I thought it was pretty growing on the shell-littered beach.

Beach plant with yellow flower
Pretty yellow flowering plant on one of the islands along the river

In the photo below you can see how clear the water was! We have a flats boat and can get into very shallow places. The water here is only a few feet deep.

Clear water in the backwater areas of the Intracoastal waterway, Indian River area.
The shallow backwater was very clear and about 65 degrees – this is saltwater.

My son maneuvered the boat over toward Oyster Bay just to take a look. Boaters must be careful navigating here because the oyster shoals can be hidden in murky water. The sharp shells grow in big clumps as seen in my photo and can damage boats. Oysters are everywhere along the saltwater river, but Oyster Bay is a community.

Oyster Bay and view of beachside condominiums
View of the coastline condos across Oyster Bay area.
Heading north on the waterway
Heading north, back to the boat ramp

My son did a little more fishing while I walked along an island beach nearby. The tide was going out, but there wasn’t much to see shell-wise on the beach.

It was a good day, and although we didn’t see too many boats out where we were, the boat ramp was busy when we were ready to leave.

Relaxing with my feet up riding in our boat along the Indian River backwaters
The one thing I do like about Florida is being out on the water

Aerial Photos of the Edgewater Florida Area

A friend of ours is a pilot. He happened to be out flying the other day while my son and I were boating. Although he never found us out on the river, he did share these photos with my son and I.

It’s always fun to see a place you recognize from the air! In this first photo, the Edgewater boat ramp is visible right in the center of the image. ย It’s that rectangular patch that juts out into the water. ย That is the main channel of the Indian River, which is part of the ICW (Intracoastal Waterway). ย Straight out from the ramp is all the backwater area where we usually go to fish, and beyond that is the ocean.

aerial view of Edgewater, Florida
Aerial view of Edgewater, Florida – the boat ramp is in the center.

I don’t recognize where they were when this next photo was taken. I suspect they were flying further north.

Screen Shot 2018-06-30 at 12.44.21 PM
Aerial view, Florida’s East coast

We landed our boat on an island and my son got this panorama photo while I did some beach combing. This is where I came across the pink crown conch shell. As I walked the beach area, I came across a cross in memory of someone named Owen. We were out on a Thursday and had the place totally to ourselves. We used the Riverbreeze boat ramp, which is south of Edgewater.

Screen Shot 2018-06-30 at 2.55.02 PM
Island beach, panorama