by Rick O'Connor | Jun 11, 2020
One of the largest groups of invertebrates in the Gulf are the Mollusk… what many call “seashells”. Shell collecting has been popular for centuries and, in times past, there were large shows where shells from around the world were traded. Almost everyone who visits the beach is attracted to, and must take home, a seashell to remind them of the peace beaches give us. Many are absolutely beautiful, and you wonder how such small simple creatures can create such beauty.
One of the more beautiful shells from the sea – the nautilus.
Photo: Wikipedia
Well, first – not all mollusk are small. There are cephalopods that rival the size of some sharks and even whales.
Second, many are not that simple either. Some cephalopods are quite intelligent and have shown they can solve problems to reach their food.
But beautiful they are, and the colors and shapes are controlled by their DNA. Just amazing.
There are possibly as many as 150,000 different species of mollusks. These species are divided into 8-9 classes (depending which book you read) but for this series on Embracing the Gulf we will focus on only three. First up – the snails (Class Gastropoda).
There are an estimated 60,000 – 80,000 species of gastropods, second only to the insects. They are typically called snails and slugs and are different in that they produce a single coiled shell. The shell is made of calcium carbonate (limestone) and is excreted from tissue called the mantle. It covers their body and continues to grow as they do. The shell coils around a linear piece of shell called the columella. Most coil to the right, but some to the left – sort of like right and left-handed people. There is an opening in the shell where the snail can extend much of its body – this is called the aperture – and some species can close this off with a bony plate called an operculum when they are inside. Some snail shells have a thin extension near the head that protects the siphon – a tube that acts like a snorkel drawing water in and out of the body.
The black siphon can be seen in this crown conch crawling across the sand.
Photo: Franklin County Extension.
They have pretty good eyes and excellent sense of smell. They possess antenna, which can be tactile or sense chemicals in the water (smelling) to help provide information to a simple brain.
They are slow – everyone knowns this – but they really don’t care. Their thick calcium carbonate shells protect them from most predators in the sea… but not all.
Their cousins the slugs either lack the shell completely, or they have a remnant of it internally. You would think “what is the point of an internal shell?” – good question. But the slugs have another defense – they are poisonous. Venomous and poisonous are two different things. Being poisonous means you have a form of toxin within your body tissue. If a predator eats you – they will get very sick, maybe die. But you die as well, so… Not too worry, poisonous slugs are brightly colored – a universally understood signal to all predators.
There is one venomous snail – the cone snail, of which we have about five species in the Gulf. They possess a stylet at the tip of their siphon (similar to the worms we have been writing about) which they can use as a dart for prey such as fish. Many gastropods are carnivores, but some are herbivores, and some are scavengers.
Many shells are found on the beach as fragments. Here you see the fragment of a Florida Fighting Conch.
Photo: Rick O’Connor
Most have separate sexes and exchange gametes in a sack called a spermatophore. Fertilized eggs are often encased in structures that resemble clusters, or chains, of plastic. These are deposited on the seafloor and the young are born with their shell ready for life.
This group is not as popular as a food item as other mollusk but there are some. The Queen Conch is probably of the most famous of the edible snails, and escargot are typically land snails. I am not aware of any edible slugs… and that is good thing.
Some of the more common snails you will find along our portion of the Gulf of Mexico are:
Crown Conch Olive Murex Banded Tulip
Whelks Cowries Bonnets Cerith
Slippers Moon Oyster Drills Bubble
The most encountered slug is the sea hare.
A common sea slug found along panhandle beaches – the sea hare.
I hope you get a chance to do some shelling – I hope you find some complete ones. It is addictive!
by Carrie Stevenson | May 29, 2020
Baby terns on Pensacola Beach are camouflaged in plain sight on the sand. This coloration protects them from predators but can also make them vulnerable to people walking through nesting areas. Photo credit: UF IFAS Extension
The controversial incident recently in New York between a birdwatcher and a dog owner got me thinking about outdoor ethics. Most of us are familiar with the “leave no trace” principles of “taking only photographs and leaving only footprints.” This concept is vital to keeping our natural places beautiful, clean, and safe. However, there are several other matters of ethics and courtesy one should consider when spending time outdoors.
- On our Gulf beaches in the summer, sea turtles and shorebirds are nesting. The presence of this type of wildlife is an integral part of why people want to visit our shores—to see animals they can’t see at home, and to know there’s a place in the world where this natural beauty exists. Bird and turtle eggs are fragile, and the newly hatched young are extremely vulnerable. Signage is up all over, so please observe speed limits, avoid marked nesting areas, and don’t feed or chase birds. Flying away from a perceived predator expends unnecessary energy that birds need to care for young, find food, and avoid other threats.
When on a multi-use trail, it is important to use common courtesy to prevent accidents. Photo credit: Carrie Stevenson, UF IFAS Extension
- On a trail, the rules of thumb are these: hikers yield to equestrians, cyclists yield to all other users, and anyone on a trail should announce themselves when passing another person from behind.
- Obey leash laws, and keep your leash short when approaching someone else to prevent unwanted encounters between pets, wildlife, or other people. Keep in mind that some dogs frighten easily and respond aggressively regardless of how well-trained your dog is. In addition, young children or adults with physical limitations can be knocked down by an overly friendly pet.
- Keep plenty of space between your group and others when visiting parks and beaches. This not only abides by current health recommendations, but also allows for privacy, quiet, and avoidance of physically disturbing others with a stray ball or Frisbee.
Summer is beautiful in northwest Florida, and we welcome visitors from all over the world. Common courtesy will help make everyone’s experience enjoyable.
by Chris Verlinde | May 1, 2020
Black Skimmers foraging for fish. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Black Skimmers and Least Terns, state listed species of seabirds, have returned along the coastal areas of the northern Gulf of Mexico! These colorful, dynamic birds are fun to watch, which can be done without disturbing the them.
Shorebirds foraging. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Black Skimmer with a fish. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
What is the difference between a seabird and shorebird?
Among other behaviors, their foraging habits are the easiest way to distinguish between the two. The seabirds depend on the open water to forage on fish and small invertebrates. The shorebirds are the camouflaged birds that can found along the shore, using their specialized beaks to poke in the sandy areas to forage for invertebrates.
Both seabirds and shorebirds nest on our local beaches, spoil islands, and artificial habitats such as gravel rooftops. Many of these birds are listed as endangered or threatened species by state and federal agencies.
Juvenile Black Skimmer learning to forage. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Adult black skimmers are easily identified by their long, black and orange bills, black upper body and white underside. They are most active in the early morning and evening while feeding. You can watch them swoop and skim along the water at many locations along the Gulf Coast. Watch for their tell-tale skimming as they skim the surface of the water with their beaks open, foraging for small fish and invertebrates. The lower mandible (beak) is longer than the upper mandible, this adaptation allows these birds to be efficient at catching their prey.
Least Tern “dive bombing” a Black Skimmer that is too close to the Least Tern nest. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Adult breeding least terns are much smaller birds with a white underside and a grey-upper body. Their bill is yellow, they have a white forehead and a black stripe across their eyes. Just above the tail feathers, there are two dark primary feathers that appear to look like a black tip at the back end of the bird. Terns feed by diving down to the water to grab their prey. They also use this “dive-bombing” technique to ward off predators, pets and humans from their nests, eggs and chicks.
Least Tern with chicks. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
Both Black Skimmers and Least Terns nest in colonies, which means they nest with many other birds. Black skimmers and Least Terns nest in sandy areas along the beach. They create a “scrape” in the sand. The birds lay their eggs in the shallow depression, the eggs blend into the beach sand and are very hard to see by humans and predators. In order to avoid disturbing the birds when they are sitting on their nests, known nesting areas are temporarily roped off by Audubon and/or Florida Fish and Wildlife Conservation Commission (FWC) representatives. This is done to protect the birds while they are nesting, caring for the babies and as the babies begin to learn to fly and forage for themselves.
Threats to these beautiful acrobats include loss of habitat, which means less space for the birds to rest, nest and forage. Disturbances from human caused activities such as:
- walking through nesting grounds
- allowing pets to run off-leash in nesting areas
- feral cats and other predators
- litter
- driving on the beach
- fireworks and other loud noises
Audubon and FWC rope-off nesting areas to protect the birds, their eggs and chicks. These nesting areas have signage asking visitors to stay out of nesting zones, so the chicks have a better chance of surviving. When a bird is disturbed off their nest, there is increased vulnerability to predators, heat and the parents may not return to the nest.
Black Skimmer feeding a chick. Photo Credit: Jan Trzepacz, Pelican Lane Arts.
To observe these birds, stay a safe distance away, zoom in with a telescope, phone, camera or binoculars, you may see a fluffy little chick! Let’s all work to give the birds some space.
Special thanks to Jan Trzepacz of Pelican Lane Arts for the use of these beautiful photos.
To learn about the Audubon Shorebird program on Navarre Beach, FL check out the Relax on Navarre Beach Facebook webinar presentation by Caroline Stahala, Audubon Western Florida Panhandle Shorebird Program Coordinator:
In some areas these birds nest close to the road. These areas have temporarily reduced speed limits, please drive the speed limit to avoid hitting a chick. If you are interested in receiving a “chick magnet” for your car, 
to show you support bird conservation, please send an email to: chrismv@ufl.edu, Please put “chick magnet” in the subject line. Please allow 2 weeks to receive your magnet in the mail. Limited quantities available.
by Scott Jackson | Apr 17, 2020
Florida Sea Grant is maintaining a curated list of disaster assistance options for Florida’s coastal businesses disrupted by COVID-19.
Boats at calmly at rest in Massalina Bayou, Bay County, Florida.
The list contains links to details about well- and lesser-known options and includes “quick takeaway” overviews of each assistance program. Well-funded and widely available programs are prioritized on the list. The page also houses a collection of links to additional useful resources, including materials in Spanish.
“There is a lot of information floating around out there,” says Andrew Ropicki, Florida Sea Grant natural resources economist and one of the project leaders. “We are trying to provide a timely and accurate collection of resources that will be useful for Florida coastal businesses.”
Ropicki and others on the project team stress that the best place to start an application for disaster aid is to visit with your bank or lender and the Florida Small Business Development Center (SBDC). They also suggest contacting local representatives by telephone or email and not to just rely on internet-based applications.
Overview of Selected Disaster Assistance Programs Benefiting Florida Small Businesses including Agriculture, Aquaculture, and Fisheries (COVID-19)
The project team — which includes experts from Florida Sea Grant, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension, and the UF/IFAS Center for Public Issues Education — reviews the page regularly for accuracy and to include new options.
Commercial seafood is a large part of Florida’s economy and culture.
Photo: Rick O’Connor
“[I] really appreciate the outstanding work that you and FSG have done on consolidating the various types of aid available to fishermen due to the virus,” said Bill Kelly, executive director of the Florida Keys Commercial Fishermen’s Association, in a recent email. “I’ve been searching for a comprehensive listing and you just provided it.”
by Rick O'Connor | Aug 27, 2019
We like to post articles about fun and adventurous activities people can do outdoors in the Florida panhandle… but it is very hot out there this time of year. What sort of outdoor adventure can you have when the temperatures are running in the 90s and the humidity in the 80% range?
Water…
Many of us have our favorite swimming holes – local rivers, springs, estuaries, or the Gulf itself, but what about SCUBA? I recently talked to a local dive charter and they said the current weather pattern is not a problem for them. The seas are relatively calm – easy to get offshore, you are underwater – so not so hot, and afternoon rains washes the gear off. Sounds like a good adventure on a hot summer day.
Diving near large coral.
Photo: Indiana University
But SCUBA is not for everyone. My wife tried and did not care for it. It certainly makes some folks nervous. Underwater seems confining to many. There is a lot of equipment you have to wear, and that can be bothersome. There are creatures out there, some of them rather large. And then there is the risk, many see SCUBA as a dangerous activity – and it can be. This is why they require a course for certification… to address all of these issues.
During the course they will put you in a swimming pool with the gear and see how comfortable you are. Honestly, I remember the first time I tried the tank. My brain was telling me “DO NOT INHALE… YOU ARE NOT A FISH”. But eventually I did, and MAN was that cool. As you become more comfortable you can swim some. All of this is done at the shallow end so if it is not working for you – you are fine. The equipment really is not that cumbersome while in the water. Swimming slow laps, getting use the breathing on the equipment, clearing your mask if water gets in, they teach you everything you need to know to be relaxed while underwater.
Student and instructor practice SCUBA skills in a swimming pool.
Photo: University of Central Florida.
There are skills you will need to learn while in the pool, and then the there is the classroom sessions. Much of it deals with the danger issue of diving – what could go wrong. As Jacques Cousteau once said, it is not going down that is the problem, it is coming back. We are all aware of the pressure changes that occur as you descend into the ocean. There is air pressure on your body at sea level – about 15 p.s.i. We do not notice this because our body compensates for it. However, as you descend into the water the pressure increases 15 p.s.i. every 33 feet you descend. You will feel this and are taught how to compensate for it. Once on the bottom, you will find all sorts of structures, fish, sometimes even sea turtles. You swim around trying to take it all in, but the entire you are down the pressure is pushing gases into your body. When it is time to return, you must do this the correct way – “gas off” as they say. Again, local instructors will explain all of this in class and you will have a chance to practice in the pool.
Then there is the open water dive.
You get a chance to test your skills in the open Gulf.
Again, this makes some a bit nervous. It is one thing in the safety of a swimming pool. It is another in the wild blue. There are jellyfish, fish, bigger fish, waves, can’t see the bottom yet, pirates, who knows what is running through your mind. But you are with friends. Everyone is going through the same experience and you have master divers at your side. It is all good. You eventually reach the bottom and see a world that is truly amazing.
A diver explores a coral reef.
Photo: NOAA
Again, SCUBA is not for everyone, but it is a fun activity on these hot summer days. Something to consider trying. There are many great dive instructors along the Florida panhandle, and one near you. If SCUBA is too much – consider snorkeling, it can be a rewarding activity as well.
Stay cool.
by Scott Jackson | Jun 21, 2019
Panama City Dive Center’s Island Diver pulls alongside of the El Dorado supporting the vessel deployment by Hondo Enterprises. Florida Fish and Wildlife crews also are pictured and assisted with the project from recovery through deployment. The 144 foot El Dorado reef is located 12 nautical miles south of St Andrew Pass at 29° 58.568 N, 85° 50.487 W. Photo by L. Scott Jackson.
In the past month, Bay County worked with fishing and diving groups as well as numerous volunteers to deploy two artificial reef projects; the El Dorado and the first of the Natural Resources Damage Assessment (NRDA) reefs.
These sites are in Florida waters but additional opportunities for red snapper fishing are available this year to anglers that book for hire charters with captains holding federal licenses. Federal licensed Gulf of Mexico charters started Red Snapper season June 1st and continue through August 1st. Recreational Red Snapper fishing for other vessels in State and Federal waters is June 11th – July 12th. So booking a federally licensed charter can add a few extra fish to your catch this year.
The conversion of the El Dorado from a storm impacted vessel to prized artificial reef is compelling. Hurricane Michael left the vessel aground in shallow waters. This was in a highly visible location close to Carl Grey Park and the Hathaway Bridge. The Bay County Board of County Commissioners (BOCC) acquired the El Dorado, January 14, 2019 through negotiations with vessel owner and agencies responsible for recovery of storm impacted vessels post Hurricane Michael.
The El Dorado was righted and stabilized, then transported to Panama City’s St Andrews Marina by Global Diving with support from the Coast Guard and Florida Fish and Wildlife. Hondo Enterprises, was awarded a contract to complete the preparation and deployment of the vessel for use as an artificial reef.
Reefing the El Dorado provides new recreational opportunities for our residents and tourists. The new reef delivers support for Bay County’s fishing and diving charters continuing to recover after Hurricane Michael. Several local dive charter captains assisted in the towing and sinking of the El Dorado.
The El Dorado was deployed approximately 12 nm south of St. Andrew Bay near the DuPont Bridge Spans May 2, 2019. Ocean depth in this area is 102 feet, meaning the deployed vessel is accessible to divers at 60 feet below the surface.
The Bay County Board of County Commissioners continues to invest in the county’s artificial reef program just as before Hurricane Michael. Additional reef projects are planned for 2019 – 2020 utilizing Natural Resources Damage Assessment (NRDA) and Resources and Ecosystems Sustainability, Tourist Opportunities, and Revived Economies of the Gulf Coast States Act (RESTORE Act) funds. These additional projects total over 1.3 million dollars utilizing fines as a result of the Deepwater Horizon Oil Spill. Deployments will occur in state waters in sites located to both the east and west of St. Andrew Bay Pass.
Walter Marine deploys one of nine super reefs deployed in Bay County’s NRDA Phase I project located approximately 12 nautical miles southeast of the St. Andrew Pass. Each massive super reef weighs over 36,000 lbs and is 15 ft tall. Multiple modules deployed in tandem provides equivalent tonnage and structure similar to a medium to large sized scuttled vessel. Photo by Bob Cox, Mexico Beach Artificial Reef Association.
The first of these NRDA deployments for Bay County BOCC was completed May 21, 2019 in partnership with Mexico Beach Artificial Reef Association, Florida Fish and Wildlife Conservation Commission, and Florida Department of Environmental Protection using a $120,000 portion of the total funding. The deployment site in the Sherman Artificial Reef Permit Area is approximately 12 nm south east of St Andrew Bay Pass at a depth of 78 – 80ft.
| Patch Reef # |
Latitude |
Longitude |
| BC2018 Set 1
(6 Super Reefs and 4 Florida Specials) |
29° 55.384 N |
85° 40.202 W |
| BC2018 Set 2
(1 Super Reef and 4 Florida Specials) |
29° 55.384 N |
85° 39.739 W |
| BC2018 Set 3
(1 Super Reef and 4 Florida Specials) |
29° 55.384 N |
85° 39.273 W |
| BC2018 Set 4
(1 Super Reef and 4 Florida Specials) |
29° 55.384 N |
85° 38,787 W |
In 2014, Dr. Bill Huth from the University of West Florida, estimated in Bay County the total artificial reef related fishing and diving economic impact was 1,936 jobs, $131.98 million in economic output and provided $49.02 million in income. Bay County ranked #8 statewide in artificial reef jobs from fishing and diving. Bay County ranked #3 in scuba diving economy and scuba diving was 48.4 % of the total jobs related to artificial reefs. Dr. Huth also determine that large vessels were the preferred type of artificial reef for fishing and diving, with bridge spans and material the next most popular. Scuba diving and fishing on artificial reefs contributes significantly to the county’s economic health.
For more information and assistance, contact UF/IFAS Extension Bay County at 850-784-6105 or Bay@ifas.ufl.edu. Follow us on Facebook at http://faceboook.com/bayifas .
An Equal Opportunity Institution. UF/IFAS Extension, University of Florida, Institute of Food and Agricultural Sciences, Nick T. Place, Dean for UF/IFAS Extension. Single copies of UF/IFAS Extension publications (excluding 4-H and youth publications) are available free to Florida residents from county UF/IFAS Extension offices.
This article is also available through the the Panama City New Herald
