What Eats A Jellyfish?

Jellyfish is one of the creatures in the ocean. This gelatinous marine life is 95% water. It can offer about 5 calories. It is also believed to help the stabilization of the food webs in the ocean. Thus, it can be a meal option for other animals in the sea. Some predators of jellies eat them whole instead of consuming only the nutritious parts. Jellyfishes have reproductive tissues that can provide protein and calories.

Are you curious about what eats a jellyfish? The following is a list of the predators of jellyfishes.

Sea turtles

Sea turtles eat Jellyfish

Sea turtles are among the common predators of jellyfishes. Some sea turtles become sick or even die because they mistake floating plastic bags for jellyfishes. It is one of the top reasons why trash must be out of oceans. The leatherback is among the usual type of sea turtles that eat jellyfish. This creature doesn’t have a hard external carapace like its relatives. Their downward-pointing spines inside the esophagus keep the jellyfishes from slithering out before the sea turtles can swallow them. However, they make jellyfishes as prey to a lesser extent.


Jellyfishes eat Jellyfish

Although they don’t eat jellyfish of similar species, they can eat other species of jellyfishes. So, jellyfishes are also among the biggest predators of a jellyfish. If they starve, they tend to eat each other.

Swordfish, Sharks, Tunas and other species of Salmon

Sharks eat Jellyfish

Swordfish, sharks, tuns, and other species of salmon are among the predators of jellyfish. They are the natural enemies of jellyfishes. Other fishes can also be predators of jellyfishes. One fish species in South Africa and Namibia is the bearded goby. In fact, this fish also helped to avoid the ecosystem overrun by jellyfishes to be a dead zone. In addition to these fishes, jellyfish can also be a prey for butterfish, spiny dogfish as well as other species of tuna and salmon.

Ocean sunfish

Ocean sunfish eat Jellyfish

Ocean sunfish, also called mola, is a heavier bony fish. They eat various types of jellyfishes, such as comb and moon jellyfishes. The ocean sunfish comes with a small mouth with 2 teeth plates that can be compared to the beak of the bird. This jellyfish predator can’t chew, so they suck the jellyfishes in and out the mouth many times. This fish also has a vicious and slimy lining on its digestive tract that avoids them from being stung by the tentacles of the jellyfish.


Penguins eat Jellyfish

Sometimes, penguins can also be a predator of jellyfishes. They can eat jellyfishes due to starvation.


Humans eat

Humans also eat jellyfishes. Jellies can be an ingredient in recipes like Hawaiian recipes. You can eat it deliciously with other ingredients.

What do jellyfishes eat?

Now that you discovered what eats a jellyfish let us know what do jellyfishes eat. The prey of jellyfishes includes small creatures in the sea known as plankton. They also eat other jellyfishes of other types. They also consume young stages of marine animals and planktonic eggs.

Some marine creatures mistake plastic bags for jellyfish. It can result to death. With that, you must be responsible for keeping the ocean clean.

What is the lifespan of a jellyfish?

Jellyfishes can last less than a year. Some of the smallest jellyfishes can only live in a few days. The species of jellyfishes come with the natural life cycle.

What is the purpose of a jellyfish sting?

Most jellyfishes come with millions of small stinging cells on their tentacles. These are called nematocysts. They use it to capture food by injecting a toxin into their prey. The reason why it hurt when you got stung by jellyfish is that it releases toxins in your skin.


Jellyfishes have lots of stinging cells, making them have few predators. However, ocean sunfish and other species of sea turtle are already immune to the venom of jellyfishes. Eating jellyfish can be risky from other animals without adaptation.

Jellyfishes also help the ecosystem of the ocean stable. This marine life is versatile and can eat small fishes using their tentacles. On the other hand, other animals can also survive by making jellyfishes as their prey. Meanwhile, marine creatures such as fishes can be vulnerable to population crashes. Thus, they can survive if there’s enough supply of food that can fit their mouths.