What Do Jellyfish Eat?
Hi, I'm Nadine Slimak at Mote Marine Laboratory and Aquarium here in Sarasota, Florida. One of the questions that we sometimes get asked are what animals eat. In this case, we want to tell you about jellyfish. Jellyfish actually eat a number of different things, mostly either plankton, which are tiny plants found floating in the ocean, or zooplankton, which are tiny animals floating in the ocean. Those are two of the most popular things that jellies eat. Jellyfish are a pretty interesting animal. They're actually found in every ocean of the world worldwide. Some live on the surface of the ocean, and others live in the deeper deep sea. There are a variety of jellyfish. They are also prey items for other animals. Animals that eat jellyfish or prey on them, for instance, are tuna, sharks, and sea turtles. Another interesting thing about jellyfish is how they collect or how they get oxygen from the water around them. Jellyfish have extremely thin skins, and so instead of having gills or lungs the way mammals have lungs, they actually take oxygen in from diffusion and are able to get it directly from the seawater in which they live. Another interesting fact about jellyfish is that some actually swim while others are more stationary and just kind of float along in the currents. One that would be stationary is called the upside-down jellyfish, where the animal's tentacles are actually upside-down and the bubble of the jellyfish, if you will, actually is on the bottom. Another jellyfish that's common to Southwest Florida is the moon jellyfish. And if you look at them here at Mote Aquarium, they actually look like a living lava lamp. From Mote Marine Laboratory and Mote Aquarium in Sarasota, I'm Nadine Slimak.