Bioluminescence in the Everglades

Heart on the beach from bioluminescent algae Noctiluca Scintilla

Picture this: you’re coasting along the waters of the Everglades and suddenly you notice tiny neon blue lights gleaming in the boat’s wake like a whole galaxy of stars. The water glows so profoundly it’s as if you’ve awakened it from a deep slumber. It’s almost as if it’s alive. Well, it is. This is called bioluminescence.

While the water isn’t actually alive, the tiny neon lights are. Bioluminescence in the Everglades is the product of light-emitting aquatic microorganisms like algae and fungi. The most common light producing aquatic organisms are known as dinoflagellates, which give off a blue-green hue.

This strange and brilliant phenomenon takes place due to a chemical reaction between luciferin, the light-emitting property found in fireflies, and a light-bearing enzyme called luciferase. Touch tends to stimulate bioluminescent organisms, so a boat’s bottom or a canoe’s oar will trigger a light show.

But it’s so much more than a spectacular sight. Bioluminescent organisms use their light to attract and deflect prey. Some even communicate with one another through those beautiful blue speckles you see at the water’s surface. Why blue? Not only does blue light reach farther distances in water, but it’s also one of the only wavelengths marine organisms can interpret.

And bioluminescence isn’t limited to the water. Land loving plants and animals experience it too. Among these are the firefly, a widely-known bioluminescent insect, and foxfire, a green-glowing fungi that grows on tree trunks.

Though bioluminescence can occur both on land and in water, you’re more likely to catch an Everglades light show by boat. Because this marvel almost never occurs in freshwater, take to the brackish and coastal waters of the Everglades for a chance to experience aquatic bioluminescence.

Everglades visitors claim they’ve witnessed bioluminescence in the Everglades Wilderness Waterway, the 10,000 Islands region and in saltwater mangrove swamps. The phenomenon is only visible in the dark of night, so prepare for a nighttime adventure like none other.

For a guided tour through Everglades waterways, contact Captain Mitch’s Airboat Tours by clicking here or calling 239-695-3377.

How Climate Change Threatens the Everglades

growing treeDo you want to see one of the world’s greatest phenomena before it’s gone? Like the Great Barrier Reef, climate change threatens the Everglades’ chance of survival. Its vitality is unknown, so if you want to see the Everglades before it’s forever changed, best visit now.

Because Florida is so flat, climate change affects the Everglades in a big way. Sea surrounds the majority of the Everglades perimeter. What this means? The Everglades are the first to experience the harsh effects of rising sea levels. If precautions aren’t taken, the Everglades we know now could be underwater in the future. One thing’s for certain: climate change is already in effect, and it’s already changing the landscape of the Everglades.

What exactly is climate change?

Climate change refers to fluctuations in the world’s weather patterns. Changes in precipitation, seasons and temperature all result from climate change. Many scientists believe the world is seeing higher average temperatures, also known as global warming, causing the polar ice caps to melt and sea levels to rise. These scientific researches attribute much of climate change to human emissions of greenhouse gases like carbon dioxide.

How does climate change affect the Everglades?

Sea levels in South Florida are rising at an accelerated rate, which interferes with the Everglades’ ability to adapt. Not only is the landscape threatened but also all of the plants and wildlife that inhabit it.

The inner waterways of Everglades National Park (freshwater estuaries, sloughs, cypress swamps, etc.) exhibit water level rise congruent with global sea level rise. This is proof that sea level rise doesn’t just affect our coastal waters – it spans inland, affecting our rivers, creeks, estuaries and essentially all of our land. This contaminates, or “salinizes,” once-freshwater bodies and the surrounding land, thus jeopardizing the survival of endangered plants and animals.

Areas of the Everglades affected by climate change:

  • South Florida
  • Cape Cable
  • The Saline Glades

How do we combat climate change?

The National Park Service devised a four-prong plan to combat climate change. This “response strategy” centers around science, adaptation, mitigation and communication. Through this initiative, the NPS will monitor protected parts of the Everglades to minimize destruction due to climate change.

You can make a difference too. Change your everyday actions to reduce your carbon footprint and protect the Everglades. Whether you live in South Florida or in Alaska, you inadvertently affect the Everglades. You can help through actions so simple as recycling, carpooling and minimizing electricity use.

See the Everglades now

By taking preventative measures, we can preserve the Everglades. If we don’t, the Everglades may not be around much longer. See the Everglades before they’re forever changed.

The best way to experience the Everglades is by airboat. Captain Mitch’s Airboat Tours offer panoramic views of the Everglades. To schedule your airboat tour today, click here or call 239-695-3377.

Dolphins of the Everglades: the swamp’s smartest animal

Atlantic bottlenose dolphins possess heightened senses allowing them to socialize, sympathize and strategize, deeming them the smartest animal in the Everglades. These magnificent marine mammals frequent south Florida and can be seen surfacing off the Gulf Coast and in the Everglades’ brackish waters.

These intelligent animals are incredibly social, so you’ll often spot them swimming in groups called pods. Dolphins develop intimate relationships with members of their pod, and they function like a tight-knit family.

Extremely active, you might catch two dolphins chasing after each other or jumping up out of the water as if performing tricks. And sometimes playtime and mealtime overlap. When hunting, a dolphin may play with a fish for a while before actually eating it.

What’s more enjoyable than playing with your food? Actually tasting it. A dolphin’s taste buds interpret four of five basic tastes: salty, sweet, sour and bitter. These aquatic masterminds can also use taste to track down prey. A dolphin can taste whether an area was recently populated by a school of fish, thus making it easier to find food.

Another way dolphins hunt is through echolocation. By emitting a high-pitched whistle, the Atlantic bottlenose dolphin interprets the sound reflection in a given area. This helps them understand where fish are and when they were there.

But hunting isn’t the only time speech comes in handy. Though scientists can’t identify whether dolphins actually use their own language, they are certain of dolphins’ ability to speak to each other. Listen for clicks, squeaks and whistles resonating from a pod. That’s often the sound of dolphins communicating with one another.

And verbal communication isn’t the only way bottlenose dolphins interact. Body language serves as an effective communicating tactic. When a dolphin is perturbed or if it wants to gain the rest of the pod’s attention, it might slap its tail.

Where to find them

Atlantic bottlenose dolphins reside in the Everglades’ largest body of water, Florida Bay. This shallow, brackish water body houses approximately 450 resident dolphins. The best way to see them? Hire an airboat for the chance to glide past these brilliant creatures in their natural Everglades habitat.

Captain Mitch’s Airboat Tours offer exceptional Everglades tours with unparalleled wildlife viewing opportunities. Schedule a tour with Captain Mitch by clicking here or calling 239-695-3377.

Everglades Habitats: A Dynamic Ecosystem

Everglades National Park - UsaThe Everglades is an internationally protected wilderness that hosts flora and fauna not found anywhere else in the world. Its diverse ecosystem weaves intricate webs of trees and marshes amid freshwater estuaries, all of which bleed into the Gulf of Mexico. There are nine habitats in the Everglades, and each plays an important role in the vitality of the area’s plants and animals. From swamps to pine forests, here’s what you can expect to find in each habitat, and which plant and wildlife can be found where:

Freshwater slough

Sloughs are chiefly responsible for water circulation throughout the Everglades. These flooded, sunken areas of land slowly but surely distribute freshwater to other areas of the ecosystem. There are two sloughs in Everglades National Park: Taylor Slough and the larger and more-popular Shark River Slough, also known as the “River of Grass.” Both of these ensure freshwater reaches the Florida Bay. Because of their abundance of drinking water, sloughs are popular wildlife congregation sites. Visit Everglades sloughs in the dry season (November through May) for the best chance to spot alligators lounging in the sun.

Hardwood hammock

Hardwood hammocks are dry, slightly elevated concentrations of tropical and temperate trees with broad leaves. Due to their raised nature, hardwood hammock habitats don’t often flood. The trees grow close together, creating overhead canopies with shade from the sun. This allows ferns to flourish. A stroll through a hardwood hammock will expose you to the red-limbed Gumbo Limbo tree along with mahogany, oak, maple and more. Keep your eye out for the “Jewel of the Hammock,” the vibrantly colored tree snail. A natural ornament, these snails latch inconspicuously onto tree bark. Remember they’re protected, so don’t bother the little living jewels.

Pinelands

Similar to hardwood hammocks, pineland habitats grow on higher ground. Also known as Pine Rocklands, here skinny slash pine trees grow tall out of a hard limestone surface. Around the trees’ roots thrive various species of palm, from the adequately named saw palmetto to the edible sable palm. Believe it or not, pinelands rely heavily on fire for survival. Natural and human-induced brush fires strip the land, providing more space and sunlight for seeds to sprout. Over the years, pineland trees adapted to fires by acquiring thick bark and growing needles only where the fire can’t reach, toward the crown of the tree.

Coastal lowlands

This is a habitat for the most resilient flora. Found near the shore of the Gulf Coast, coastal lowlands are no stranger to severe weather, which restricts the growth of mangroves and other tall trees. Desert plants usually survive in coastal lowlands because they can withstand harsh storms without much protection. At the sandy lowlands you’ll see short, salt-tolerant shrubs like succulents. Look out for shoreline seapurslane, an herb that grows close to the ground and spreads wide across the sand. It may appear unimportant, but this succulent actually protects the shoreline from erosion by capturing sand grains in its mane, thus preserving the beach’s body.

Mangrove

The Everglades boast the most abundant population of mangroves in the entire hemisphere. Since these trees thrive where freshwater and saltwater meet, you’ll find plentiful mangrove forests sprinkled all along the coast of south Florida. These salt-tolerant mangrove trees come in three colors: red, white and black, all of which nurture plant and water life. Mangrove habitats provide essential nutrients to marine animals by depositing fallen leaves into the water. Because of the nutrient-rich water and the shelter formed by mangrove roots, many fish and crustaceans call mangrove forests their home. During low tide, you’ll often find wading birds fishing in the brackish water, thus completing the mangrove habitat food chain.

Cypress

These towering trees grow in many ways. You can find them growing in standing water or in breaks in the hard ground. When the limestone surface of a pineland habitat breaks, it gives way to “solution holes.” Often clusters of cypress trees grow inside these weathered pits, with the larger trees concentrated in the center. Dwarf cypress trees result from inadequate growing conditions, thus limiting their germination. Finally, cypress strands comprise tall, slender cypress trees in a swamp setting. Keep a look out for river otters lounging on low-lying cypress trunks. Another popular inhabitant of cypress swamps is the American Alligator.

Marine and estuarine

All eyes on Florida Bay. This is the Everglades’ largest water body, and with its space comes an abundance of aquatic life. Freshwater from Everglades estuaries mixes with salt water from the Gulf of Mexico to create the brackish conditions in Florida Bay. Towards the bottom of the bay you’ll find coral, mollusks and a plethora of gamefish. Closer to the surface, bottlenose dolphins swim in pods, loggerhead turtles coast leisurely, and West Indian Manatees float with their young. Because of the bay’s shallow depth – about three feet – wading birds capitalize on low tide fishing opportunities.

See them all

The best way to experience all nine Everglades habitats is by airboat. Captain Mitch’s Airboat Tours expose you to the Everglades’ grandeur from the safe and comfortable seats of open-space airboat. Call Captain Mitch today at 239-695-3377 or click here to schedule your Everglades adventure.