Identifying these phenomenal creatures
Jellyfish are found in all of the world’s oceans, from the surface to the deep sea. They are often transparent or translucent, and range in color from white to red or blue. Jellyfish come in a wide variety of shapes and sizes. Some are very small, only a few centimeters in diameter. Most jellyfish spend their lives drifting in the ocean currents. Jellyfish are carnivores, and their diet consists mostly of small fish, crustaceans, and other marine animals. They use their tentacles to capture prey, which they then bring to their mouths to eat. These tentacles have stinging cells with may be quite venomous in some jellyfish.
There are a few species that are commonly seen around Florida. They are not always present and you may rarely see them. However, from time to time, there will be swarms of them and you will see them all along the shoreline.
Moon Jellyfish
The moon jellyfish is the most common jellyfish in Florida. They are typically found in the warmer coastal waters of the state. Moon jellyfish are translucent, with a white or cream-colored center. They can grow to be about 40 centimeters in diameter. Moon jellyfish feed on small fish and crustaceans. Most often they will be seen washed up on the shore.
Cannonball Jellyfish
Cannonball jellyfish are typically found in the southern parts of the state. They are translucent, with a white or cream-centered body. They resemble a large mushroom and will be seen along the shoreline, typically when you see one, there will be more.
Sea Nettle Jellyfish
Sea nettles are translucent, with a brown or red center.
Blue Button Jellyfish
By-the-Wind Sailor (Velella) Jellyfish
Mauve Stinger Jellyfish
Portuguese man-of-war
Portuguese man-of-wars are found throughout Florida’s coastal waters. They are translucent, with a blue center. Portuguese man-of-wars feed on small fish and crustaceans. The sting of the Portuguese man-of-war can be quite painful and require medical attention.
Box Jellyfish
The Box Jellyfish is the most dangerous jellyfish in Florida and one of the most deadly creatures in the world. It has a venomous sting that can be fatal to humans. The Box Jellyfish is found in the deeper waters of the Gulf of Mexico. It is translucent, with a white or cream-centered body. The Box Jellyfish feeds on small fish and crustaceans.
If you are ever stung by a jellyfish, it is important to seek medical help immediately.