What kind of food do jellyfish eat?

Jellyfish is an important plankton in the aquatic environment. It is a general term for the invertebrates of Scylla. There are many kinds of jellyfish with different shapes. They are commonly found in various oceans, most of which are found in fresh water. The shallow waters of tropical and subtropical oceans are the most abundant. Let's take a look at what jellyfish eat.

What kind of food do jellyfish eat?

Jellyfish are carnivores, feeding on plankton, small crustaceans, hirsutes and even small fish. Although they are beautiful and gentle in appearance, they are actually very ferocious. Once they encounter prey, they never let go easily, but they have no respiratory organs and circulatory system. Only primitive digestive organs, so the captured food is immediately digested and absorbed in the luminal intestine. The digested nutrients rely on the cilia swinging on the wall of the circulation tube to promote the nutrients from the gastric cavity through the radiant tube into the annular tube, and then discharge the undigested food residue out of the body through the positive radiant tube, interradial tube, gastric cavity and mouth.

Is it poisonous if you are stung by a jellyfish?

Poisoned by jellyfish stings. There are stinging cells on the surface of jellyfish tentacles and perioral tissue, and the stinging cells contain stinging wire sacs that store venom, which can inject venom into human or animal bodies through stinging wire sacs, which produce a variety of biological toxic effects on cardiovascular, blood, nerve, muscle and so on. Jellyfish toxin has lethal activity, hemolytic activity, cardiovascular toxicity, hepatotoxicity, neurotoxicity, enzyme activity and so on. Rash, redness, swelling, pruritus, pain, low blood pressure, even dyspnea, fainting, shock and death can occur after being stung.

What kinds of jellyfish do you have?

1. Cubic jellyfish: the whole umbrella part of the cubic jellyfish is cubic, distributed in tropical and subtropical shallow seas, and a few live in the open sea. The stinging cells on the tentacles are highly toxic. Common representative species such as hand-towed jellyfish, box jellyfish and so on.

2. Crown jellyfish: the jellyfish of crown jellyfish are dome-shaped, conical, or flat and parallel, but there is a tight groove in the middle of the outer umbrella, which divides the umbrella into upper and lower parts, and the corresponding gastric sac is also divided into upper and lower parts, mainly deep marine products, such as marginal leaf jellyfish.

3. Cross jellyfish: a bowl jellyfish living in a cross jellyfish camp, consisting of a combination of polyp and jellyfish, often distributed in colder sea water and attached to seaweed, such as trumpet jellyfish and tall cup jellyfish.

4. Flag mouth jellyfish: the umbrella of the flag mouth jellyfish is bowl-shaped and butterfly-shaped, with 8 to many missing edges, with tentacle sacs in the missing, and most of them live along the coast. the common species are sea and moon jellyfish, swimming jellyfish, summer jellyfish and so on.

5. Root mouth jellyfish: the root mouth jellyfish is close to the flag mouth jellyfish, the mouth is not in the middle of the body, but on the movable tentacles, and there is a small opening to accept small food molecules in the water, representing species such as jellyfish, nitrate jellyfish and so on.