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 | Apr 5, 2020
We began this series on the Gulf talking about the Gulf itself. We then moved to the big, more familiar – maybe more interesting animals, the vertebrates – birds, fish, etc. In this edition we shift to the invertebrates – the “spineless” animals of the Gulf of Mexico. Many of them we know from shell collecting along the beach, others are popular seafood choices, but most we know nothing about and rarely see.
A spineless Comb Jelly.
Florida Sea Grant
They are numerous, on diversity alone – making up 90% of the animal kingdom. They may leave remnants behind so that we know they are there. They may be right in front of our faces, but we do not know what we are looking at. They are incredibly important. Providing numerous nutrient transport, and transfer, in the ecosystem – that would otherwise not exist. They also provide a lot of ecological services that reduce toxins and waste. One source suggests there are over 30 different phyla and over one million species of invertebrates. In this series we will cover six major groups and we begin with the simplest of them all… the sponges.
For some, you may not know that sponges are actually alive. For others, you knew this but were not sure what kind of creature it was. Are they plants? Animals? Just a sponge?
The answer is animal. Yea…
We usually think of animals as having legs, running around, eating things and defecting in places – the kinds of things that make good animal planet shows.
Sponges… would not make a great animal planet show. What are you going to watch? They appear to be doing nothing. They sit on the ocean floor… and… well… that’s it, they sit on the ocean floor. But they actually do a lot.
A vase sponge.
Florida Sea Grant
They are considered animal because (a) their cells lack a cell wall – which plants have, and (b) they are heterotrophic… consumers… they have to hunt their food and cannot make it as plants do.
What do they eat?
Plankton. Lots of plankton. Looking at a sponge you would call it one animal, but it is actually a colony of specialized cells working as a unit to survive. There are cells with flagella, called collar cells, that use these flagella to create currents that “suck” water into the body of the creature. This is how they collect plankton. The collar cells live in numerous channels throughout the sponge body connected to small pores all over the service of the sponge. This is where they get their phylum Porifera. As the water moves through the channels, the collar cells remove food and specialized cells called choanocytes release reproductive eggs called gemmules. All of the water eventually collects in a cavity, called the gastrovascular cavity where it exists the sponge through a large opening called an osculum.
This is how they eat and reproduce.
The anatomy of a sponge.
Flickr
The matrix, or tissue, of the sponge is held together by small, hard structures called spicules. It sort of serves as a skeleton for the creature. In different sponges the spicules are made of different materials, and this is how the creatures are divided into classes. Some are made of calcium carbonate, like seashells. Others are made of silica and are “glass-like”, and some made of a softer material called “spongin”, which are the ones we use to take baths with. Today purchased sponges are synthetic, not natural – but you can still get natural sponges.
Many sponges are tiny, others are huge. They all like seawater – not big fans of freshwater – and many produce mild toxins to defend the from predators. They do have predators though – hawksbill sea turtles love them. There is currently a lot of research going on using sponge toxins to kill cancer cells. Who knows, the cure to some forms of cancer may lie in the cavity of the sponge.
Another cool thing about them is that their cavities provide a lot of space for other small creatures in the ocean. Numerous species can be found in sponge tissue and cavities, utilizing this space as a habitat for themselves.
Florida Sea Grant
They are a major player in the development of reefs in the tropics and, like their counter parts coral, have experienced a decline due to over harvesting and harmful algal blooms. There are efforts in the Florida Keys to grow new sponge in aquaculture facilities and “re-plant” in the ocean. In the northern Gulf they are more associated with seagrass beds.
These are truly amazing creatures and the more we learn about them, the more amazing they become.
References:
Myriad World of the Invertebrates. EarthLife. https://www.earthlife.net/inverts/an-phyla.html.
by Chris Verlinde | Feb 28, 2020
What’s the big deal about seagrasses?
Seagrass meadows are made up of plants that live under water in our local estuaries. Just like the grass and plants in our yards where many types of insects, worms and small animals live, seagrass meadows provide habitat for many types of young fish and invertebrates, such as crabs and shrimp.
Between 70 and 90% of fish, crabs and shrimp that recreational and commercial fishermen catch, spend some time during their life in seagrass beds. In 2014, the commercial fishing industry contributed nearly $140 million, while recreational fishing spending contributed $6 billion to Florida’s Economy. If we did not have healthy seagrasses, we would not have this economic impact on our coastal economies (http://gulffishinfo.org/Gulf-Fisheries-Economics).
In addition:
· As seagrass blades move with the currents and tides, sediments are removed from the water, which contributes to improved water clarity.
· Seagrasses are the same type of plants that grow on land, they produce oxygen for marine life.
· Seagrasses filter excess nutrients from the water.
· Provide food and shelter for juvenile fish, shrimp and crabs.
· Endangered species such as manatees and green sea turtles depend on seagrass beds for food.
· Migratory birds depend on seagrass beds for foraging needs.
What can you do to help protect seagrasses?
While boating:
• Avoid seagrass beds. If you do run aground in a seagrass bed, turn off your engine, tilt up the engine and walk or pole your boat out of the shallow water.
• Be safe and know water depths and locations of seagrass beds by studying navigational charts.
• Seagrasses are usually found in shallow water and appear as dark spots or patches. Wear polarized sunglasses (to reduce glare) to help locate these areas.
• Always choose to use a pump-out station for your marine sanitation device.
• Stay in marked channels.
At home:
• To reduce pollution from entering our waterways, keep a buffer of native plants along your shoreline. This will also help to protect your property from erosion and slow flood waters during storm events.
• To save money, plant native plants that don’t require a lot of fertilizers and pesticides. Avoid seagrass beds when planning for dredging activities or pier construction.
• Comply with Shoreline Protection construction codes
• Maintain septic tanks.
In your community:
• Families and children can get out and snorkel these areas! Many sites are easy to access from public parks.
• Get involved with local organizations that promote nature protection.
• Working together, we can share with community members what we have learned about seagrasses at the 20th annual Seagrass Awareness Celebration, March 6, 2020 from noon until 4 pm at Shoreline Park South in Gulf Breeze Fl.
• Don’t litter!
The scarring of seagrass but a propeller.
by Rick O'Connor | Feb 5, 2020
This is one of the most beloved animals on the planet… sea turtles. Discussions and debates over all sorts of local issues occur but when sea turtles enter the discussion, most agree – “we like sea turtles”, “we have nothing against sea turtles”. There are nonprofit groups, professional hospitals, and special rescue centers, devoted to helping them. I think everyone would agree, seeing one swimming near the shore, or nesting, is one of the most exciting things they will ever see. For folks visiting our beaches, seeing the white sand and emerald green waters is amazing, but it takes their visit to a whole other level if they encounter a sea turtle.
The largest of the sea turtles, the leatherback.
Photo: Dr. Andrew Colman
They are one of the older members of the living reptiles dating back 150 million years. Not only are they one of the largest members of the reptile group, they are some of the largest marine animals we encounter in the Gulf of Mexico.
There are five species of marine turtles in the Gulf represented by two families. The largest of them all is the giant leatherbacks (Dermochelys coriacea). This beast can reach 1000 pounds and have a carapace length of six feet. Their shell resembles a leatherjacket and does not have scales. Because of their large size, they can tolerate colder temperatures than other marine turtles and found all over the globe. They feed almost exclusively on jellyfish and often entangled in open ocean longlines. There is a problem distinguishing clear plastic bags from jellyfish and many are found dead on beaches after ingesting them. Like all sea turtles, they approach land during the summer evenings to lay their eggs above the high tide line. The eggs incubate within the nest for 65-75 days and sex determination is based on the temperature of the incubating eggs; warmer eggs producing females. Also, like other marine turtles, the hatchlings can be disoriented by artificial lighting or become trapped in human debris, or unnatural holes, on the beach. These animals are known to nest in Florida and they are currently listed as federally endangered and are completely protected.
The large head of a loggerhead sea turtle.
Photo: UF IFAS
The other four species are found in the Family Chelonidae and have the characteristic scaled carapace. Much smaller than the leatherback, these are still big animals. The most common are the loggerhead sea turtles (Caretta caretta). As the name suggest, the head of this sea turtle is quite large. Their carapace can reach lengths of four feet and they can weigh up to 450 pounds. The head usually has four scutes between the eyes and three scutes along the bridge connecting the carapace to the plastron. This animal prefers to feed on a variety of invertebrates from clams, to crabs, to even horseshoe crabs. It too is an evening nester and the young have similar problems as the leatherback hatchlings. The tracks of the nesting turtle can be identified by the alternating pattern made by the flippers. One flipper first, then the next. The loggerhead is currently listed as a federally threatened species.
A green sea turtle on a Florida beach.
Photo: Florida Sea Grant
The green sea turtle (Chelonia mydas) is called so not for the color of its shell, but for the color of its internal body fat. They are fans of eating seagrasses, particularly “turtle grass” and other plants, which produce the green coloration of the fat. The fat is used to produce a world favorite, “turtle soup”, and has been a problem for the conservation of this species in some parts of the world. At one time, most green turtles nested in south Florida, but each year the number nesting in the north has increased. They can be distinguished from the loggerhead in that (1) their head is not as big, (2) there are only two scales between the eyes, and (3) their flipper pattern in sand is not alternating; green turtles throw both flippers forward at the same time. Green turtles are listed as federally threatened.
A hawksbill sea turtle resting on a coral reef in the Florida Keys.
Photo: Molly O’Connor
The hawksbill turtle (Eretmochelys imbricata) is more tropical in distribution. They are a bit smaller, with a carapace length of three feet and a weight of 187 pounds, but their diet of sponges is another reason you do not find them often in the northern Gulf of Mexico. To feed on these, they have a “hawks-bill” designed to rip the sponges from their anchorages. Their shell is gorgeous and prized in the jewelry trade. “Tortoise-shell” glasses and earrings are very popular.
The most endangered of them all is the small Kemp’s Ridley sea turtle (Lepidochelys kempii). This little guy has a carapace length of a little over two feet and weighs in at no more than 100 pounds. These guys are commonly seen in the Big Bend area of Florida but for years no one knew where they nested. That was until 1947 when an engineer from Mexico found them nesting in large numbers (up to 40,000) at one time, in broad daylight in Rancho Nuevo, Mexico. This was problematic for the turtle because the locals would wait for the nesting to be complete before they would take the females and the eggs. Protected today they now face the problem that their migratory path across the Gulf takes them through Texas and Louisiana shrimping grounds, and through the 2010 Deep Water Horizon oil spill field. Not to mention that illegal poaching still occurs. Though all species of sea turtles have had problem with shrimp trawls, the Kemps had a particular problem, which led to the develop of the now required Turtle Excluder Device (T.E.D.S) found on shrimp trawls in the U.S. today. Sea turtles have strong site fidelity for nesting and in the 1980s many Kemp’s Ridley eggs were re-located to beaches in Texas in hopes to move the nesting to other locations. The program had some success and they have been reported to nest in Florida. Their diet consists primarily of crabs but there have been reports of them removing bait from fishing lines fishing from piers over the Gulf. This is species is federally endangered and is considered by many to be the most endangered sea turtle species on the planet.
Turtle friendly lighting.
Photo: Rick O’Connor
Sea turtles face numerous human-caused problems including (1) artificial lighting that disorient hatchlings and cause mortality to 50% (or more) of the hatchlings, (2) items left on beaches (such as chairs, tents, etc.) that can impede adults and entrap hatchlings, (3) large holes dug on beaches in which hatchlings fall and cannot get out, (4) marine debris (such as plastics) which they confuse with prey and swallow, (5) boat strikes, sea turtles must surface to breath and can become easy targets, and (6) discarded fishing gear, in which they can become entangled and drown. These are simple things we can correct and protect these amazing Florida turtles.
References
Buhlmann, K., T. Tuberville, W. Gibbons. 2008. Turtles of the Southeast. University of Georgia Press, Athens GA. Pp. 252.
Florida’s Endangered and Threatened Species. 2018. Florida Fish and Wildlife Conservation Commission. https://myfwc.com/media/1945/threatend-endangered-species.pdf,
Species of Sea Turtle Found in Florida. Florida Fish and Wildlife Conservation Commission. https://myfwc.com/research/wildlife/sea-turtles/florida/species/.
by Rick O'Connor | Jan 29, 2020
If you ask a kid who is standing on the beach looking at the open Gulf of Mexico “what kinds of creatures do you think live out there?” More often than not – they would say “FISH”.
And they would not be wrong.
According the Dr. Dickson Hoese and Dr. Richard Moore, in their book Fishes of the Gulf of Mexico, there are 497 species of fishes in the Gulf. However, they focused their book on the fish of the northwestern Gulf over the continental shelf. So, this would not include many of the tropical species of the coral reef regions to the south and none of the mysterious deep-sea species in the deepest part of the Gulf. Add to this, the book was published in 1977, so there have probably been more species discovered.
Schools of fish swim by the turtle reef off of Grayton Beach, Florida. Photo credit: University of Florida / Bernard Brzezinski
Fish are one of the more diverse groups of vertebrates on the planet. They can inhabit freshwater, brackish, and seawater habitats. Because all rivers lead to the sea, and all seas are connected, you would think fish species could travel anywhere around the planet. However, there are physical and biological barriers that isolate groups to certain parts of the ocean. In the Gulf, we have two such groups. The Carolina Group are species found in the northern Gulf and the Atlantic coast of the United States. The Western Atlantic Group are found in the southern Gulf, Caribbean, and south to Brazil. The primary factors dictating the distribution of these fish, and those within the groups, are salinity, temperature, and the bottom type.
Off the Texas coast there is less rain, thus a higher salinity; it has been reported as high 70 parts per thousand (mean seawater is 35 ppt). The shelf off Louisiana is bathed with freshwater from two major rivers and salinities can be as low as 10 ppt. The Florida shelf is more limestone than sand and mud. This, along with warm temperatures, allow corals and sponges to grow and the fish assemblages change accordingly.
Some species of fish are stenohaline – meaning they require a specific salinity for survival, such as seahorses and angelfish. Euryhaline fish are those who have a high tolerance for wide swings in salinity, such as mullet and croaker.
Courtesy of Florida Sea Grant. In total, it takes about 3 – 5 years for reefs to reach a level of maximum production for both fish and invertebrate species.
Forty-three of the 497 species are cartilaginous fish, lacking true bone. Twenty-five are sharks, the other 18 are rays. Sharks differ from rays in that their gill slits are on the side of their heads and the pectoral fins begins behind these slits. Rays on the other hand have their gill slits on the bottom (ventral) side of their body and the pectoral begins before them. Not all rays have stinging barbs. The skates lack them but do have “thorns” on their backs. The giant manta also lacks barbs.
Sharks are one of the more feared animals on the planet. 13 the 25 species belong to the requiem shark family, which includes bull, tiger, and lemon sharks. There are five types of hammerheads, dogfish, and the largest fish of all… the whale shark; reaching over 40 feet. The most feared of sharks is the great white. Though not believed to be a resident, there are reports of this fish in the Gulf. They tend to stay offshore in the cooler waters, but there are inshore reports.
The impressive jaws of the Great White.
Photo: UF IFAS
There is great variety in the 472 species of bony fishes found in the Gulf. Sturgeons are one of the more ancient groups. These fish migrate from freshwater, to the Gulf, and back and are endangered species in parts of its range. Gars are a close cousin and another ancient “dinosaur” fish. Eels are found here and resemble snakes. As a matter of fact, some have reported sea snakes in the Gulf only to learn later they caught an eel. Eels differ from snakes in having fins and gills. Herring and sardines are one of the more commercially sought-after fish species. Their bodies are processed to make fish meal, pet food, and used in some cosmetics. There are flying fish in the Gulf, though they do not actually fly… they glide – but can do so for over 100 yards. Grouper are one of the more diverse families in the Gulf and are a popular food fish across the region. There untold numbers of tropical reef fish. Surgeons, triggerfish, angelfish, tangs, and other colorful fish are amazing to see. Stargazers are bottom dwelling fish that can produce a mild electric shock if disturbed. Large billfish, such as marlins and sailfins, are very popular sport fish and common in the Gulf. Puffers are fish that can inflate when threatened and there are several different kinds. And one of the strangest of all are the ocean sunfish – the Mola. Molas are large-disk shaped fish with reduced fins. They are not great swimmers are often seen floating on their sides waiting for potential prey, such as jellyfish.
We could go on and on about the amazing fish of the Gulf. There are many who know them by fishing for them. Others are “fish watchers” exploring the great variety by snorkeling or diving. We encourage to take some time and visit a local aquarium where you can see, and learn more about, the Fish of the Gulf.
Reference
Hoese, H.D., R.H. Moore. 1977. Fishes of the Gulf of Mexico; Texas, Louisiana, and Adjacent Waters. Texas A&M University Press. College Station Texas. Pp. 327.
by Rick O'Connor | Jan 14, 2020
Standing on one of our local beaches, the Gulf of Mexico appears to be a wide expanse of emerald green and cobalt blue waters. We can see the ripples of offshore waves, birds soaring over, and occasionally dolphins breaking the surface. But few of us know, or think, about the environment beneath the waves where 99% of the Gulf lies. We might dream about catching some of the large fish, or taking a cruise, but not about the geology of the bottom, what the water is doing beneath the waves, or what other creatures might live there.
The Gulf of Mexico as seen from Pensacola Beach.
Photo: Molly O’Connor
Scanning the horizon from the beach, you are gazing at 600,000 square miles of open water. It is about 950 miles from the panhandle to Mexico. Traveling at 10 knots, it would take you about 3 days to cross at its widest point. The Gulf is almost an enclosed body of water. The bottom is somewhat “bowl” shaped with the deepest portion slightly west of center at a location known as the Sigsbee Deep. The island of Cuba serves as the “median” between where the ocean enters and exits the Gulf. Cycling water from the Atlantic crosses from Africa, through the Caribbean, and enters the between Cuba and the Yucatan. The seafloor here sinks and spills into the Sigsbee Deep. The pass between Cuba and Yucatan is about 6500 feet deep and the bottom of the Sigsbee Deep is about 12,000. If you are looking due south from the Florida Panhandle, you would be looking at this pass.
If your gaze shifted slightly to the right – maybe “1:00” – you would be looking at the Yucatan. The Yucatan itself forms a peninsula and a portion of it is below sea level extending further into the Gulf. This submerged portion of the Yucatan is what oceanographers refer to as a continental shelf. On the “leeward” side of the Yucatan Peninsula lies an area of the Gulf known as the Bay of Campeche. There is a shallow section of this “bay” known as the Campeche Banks which supports amazing fisheries and some mineral extraction. Off the Yucatan shelf there is a current of water that rises from the ocean floor called an upwelling. These upwellings are usually cold water, high in oxygen, and high in nutrients – producing an area of high biological productivity and good fishing.
Continuing to circle the Sigsbee Deep and looking about “2:00”, northwest of the Bay of Campeche, you enter the western Gulf which extends from Vera Cruz Mexico to the Rio Grande River in Texas. The shelf is much closer to shore here and the marine environment is still tropical. There is a steep continental slope that drops into the Sigsbee Deep. Water from the incoming ocean currents usually do not reach these shores, rather they loop back north and east forming the Loop Current. The shelf extends a little seaward where the Rio Grande discharges, leaving a large amount of sediment. In recent years, due to human activities further north, water volume discharge here has decreased.
In the direction of about “2:30”, is the Northwestern Gulf. It begins about the Rio Grande and extends to the Mississippi Delta. Here the continental shelf once again extends far out to sea. One of the larger natural coral reefs in the Gulf system is located here; the Flower Gardens. This reef is about 130 miles off the coast of Texas. The cap is at 55 feet and drops to a depth of 160 feet. Because of the travel distance, and diving depth, few visit this place. Fishing does occur here but is regulated. This shelf is famous for billfishing, shrimping, and fossil fuel extraction. The Mississippi River, 15th largest in the world and the largest in the Gulf, discharges over 590,000 ft3 of water per second. The sediments of this river create the massive marshes and bayous of the Louisiana-Mississippi delta region, which has been referred to as the “birds’ foot” extending into the Gulf. This river also brings a lot of solid and liquid waste from a large portion of the United States and is home to one of the most interesting human cultures in the United States. There is much to discuss and learn about from this portion of the Gulf over this series of articles.
The basin of the Gulf of Mexico showing surface currents.
Image: NOAA
At this point we have almost completely encircled the Sigsbee Deep and move into the eastern Gulf. Things do change here. From the Mississippi delta to Apalachee Bay west of Apalachicola is what is known as the Northeastern Gulf – also known as the northern Gulf – locally called the Gulf coast. This is home to the Florida panhandle and some of the whitest beaches you find anywhere. Offshore the shelf makes a “dip” close to the beach near Pensacola forming a canyon known as the Desoto Canyon. The bottom is a mix of hardbottom and quartz sand. Near the canyon is good fishing and this area, along with the Bay of Campeche, is historically known for its snapper populations. It lies a little north of the Loop Current but is exposed to back eddies from it. Today there is an artificial reef program here and some natural gas platforms off Alabama.
Looking between “9:00-10:00” you are looking at the west coast of Florida and the Florida shelf. Here the shelf extends for almost 200 miles offshore. Off the Big Bend the water is shallow for miles supporting large meadows of seagrass and a completely different kind of biology. The rock is more limestone and the water clearer. In southwest Florida the grassflats support a popular fisheries area and a coral system known as the Florida Middle Grounds. At the edge of the shelf is a steep drop off called the Florida Escarpment, which forms the eastern side of the “bowl”. Another ocean upwelling occurs here.
Looking at “11:00” you are looking towards the Florida Keys. Between the Keys and Cuba is the exit point of the Loop Current called the Florida Straits. It is not as deep as here as it is between Cuba and the Yucatan; only reaching a depth of 2600 feet. This is mostly coral limestone and the base of one of the largest coral reef tracks in the western Atlantic. The coral and sponge reefs, along with the coastal mangroves, forms one of the more biological productive and diverse regions in our area. It supports commercial fishing and tourism.
We did not really talk about the bottom of the “bowl”. Here you find remnants of tectonic activity. Volcanos are not found but you do find cold and hot water vent communities, which look like chimneys pumping tremendous amounts of thermal water from deep in the Earths crust. These vent communities support a neat group of animals that we are just now learning about. Brine lakes have also been discovered. These are depressions in the seafloor where VERY salty water settles. These “lakes” have water much denser than the surrounding seawater and can even create their own waves. Many of them lie as deep as 3300 feet and can be 10 feet deep themselves. There is one known as the “Jacuzzi of Despair”. They are so salty they cannot support much life.
In the next addition to this series we will begin to look at the some of the interesting plant and animals that call the Gulf home.
Embrace the Gulf.
