What does jellyfish mean Can freshwater jellyfish make water quality better

Updated on science 2024-04-28
7 answers
  1. Anonymous users2024-02-08

    Jellyfish is a lower coelenterate and carnivore, taxonomically belonging to the phylum Coelentera, the class Jellyfish. The body of the jellyfish is shaped like a transparent umbrella, and the diameter of the umbrella body can be large and small, and the diameter of the umbrella body of the large jellyfish can reach 2 meters.

    From the edge of the umbrella grows some whisker-like bands, which are called tentacles, and some tentacles can be up to 20 meters to 30 meters long, which is equivalent to the length of a large whale. Jellyfish floating in the water have long tentacles stretched out in all directions, and some jellyfish have umbrella-like bodies with various color patterns.

    Freshwater jellyfish (craspedacusta).

    Several rare coelenterates that live in freshwater. Only 9 species are found in the world, and 7 of them are produced in our country. According to modern zoological records, it was first discovered in Britain in 1880 and Yichang in 1907 in China.

    In ancient China, it was called "peach blossom fish", and in modern times, it was called peach blossom jellyfish, as far as the 37th year of Wanli in the Ming Dynasty (that is, 1609), it was recorded in the ancient books of our country, so China's understanding of freshwater jellyfish was more than 270 years earlier than that of European and American countries. Freshwater jellyfish mostly live in small ditches and small ponds isolated from rivers, and their bodies are hemispherical, milky white and translucent. The umbrella edge has tentacles, which can be divided into several levels according to its length and landing position, with 4 spokes and 1 ring tube.

    The colors of the gonads are green, brownish, red, black, etc. China's freshwater jellyfish are mainly divided into the Yangtze River basin, and freshwater jellyfish have been found in 50 counties and cities in 13 provinces. Crospedacusta sinensis, Sichuan peach blossom jellyfish (and Zigui peach blossom jellyfish, etc., are endemic species in China.

    There are many species of freshwater jellyfish in China and they are widely distributed, which cannot be compared with other countries. From the perspective of the species and distribution of peach blossom jellyfish and the observation and description of peach blossom jellyfish in ancient China, it is well argued that peach blossom jellyfish originated in China and is easily accepted by people.

    Freshwater jellyfish is a term that makes water quality better, and it is generally a place with particularly good water quality that will have freshwater jellyfish; Where the water quality is poor, freshwater jellyfish cannot survive.

    Reference information: The peach blossom jellyfish has extremely high requirements for the living environment, the water quality can not be polluted, the living body is rare, it is extremely difficult to make specimens, and it is listed as the world's highest level of "critically endangered species" by the country, and it is also known as the "giant panda in the water".

  2. Anonymous users2024-02-07

    Mother of water. Ha ha.

    Joke. It's a creature that's soft in the water.

  3. Anonymous users2024-02-06

    Jellyfish are important large plankton in the ocean. Jellyfish have a very short lifespan, with an average lifespan of only a few months. Jellyfish are invertebrates and belong to the phylum Coelenterate. There are more than 200 species of jellyfish in the world's oceans, and they are found in waters all over the world.

    Freshwater jellyfish are several rare coelenterates that live in freshwater. Only 9 species are found in the world, and 7 of them are produced in our country. The freshwater jellyfish is very demanding for the environment, and its presence indicates that the local water quality is good, not that it can purify the water, which is a different concept.

  4. Anonymous users2024-02-05

    %90 is a lower organism of water, jellyfish are known as the cockroaches of the sea and are poisonous and are important large plankton in the ocean.

  5. Anonymous users2024-02-04

    Jellyfish are important large plankton in the ocean.

  6. Anonymous users2024-02-03

    In addition to the aquatic coelenterate jellyfish, jellyfish is also an Internet term, referring to a person who is particularly keen on posting on the Internet to irrigate, probably saying that she loves irrigation too much.

  7. Anonymous users2024-02-02

    Peach blossom jellyfish are freshwater.

    Peach blossom jellyfish, commonly known as "peach blossom fish", "parachute fish", because it mostly inhabits freshwater, so it is also known as freshwater jellyfish, the growth period is short, and the area is wide. The edges of the bell-shaped body have hundreds of short tentacles.

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