Jellyfish and their stings
Name of the neighborhood:
The
sea jellyfish, whose scientific name is (Scyphozoa), belongs to the animal
kingdom, the mollusk phylum, the cnidarian phylum, and the genus Cupaceae.
It is
also one of the creatures found on the coast,
Some of them are also found in the deep sea, and were discovered more
than a million years ago.
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Length:
The average length of jellyfish usually ranges between 1.27-40 cm, and some may grow up to two metres.
Weight:
The average weight of jellyfish is
between 20-400 grams.
Characteristics of the animal:
Jellyfish do not have any muscles,
brain, or even heart, in addition to most other organs.
They also have claws that end in stings that they use to defend themselves, Its sting is usually highly toxic.
Average age:
The average lifespan of jellyfish
ranges between 3-6 months.
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Types of jellyfish:
There are many types of jellyfish, the most famous of which are the following:
Lion's mane lamp:
This species acquires a reddish-brown
color, and its head appears in the form of a disc or plate.
It
has eight tentacles up to 150 meters long.
It is characterized by being very stinging, and it is one of the largest sea jellyfish.
Ordinary jellyfish:
It is one of the most widespread
species, and it is transparent and resembles the shape of a circular bell.
Small species appear in the summer, while large species appear on the coast in December.
Sea nettle:
It is in the form of a flat, circular
plate, appearing white to pink.
It
has mouth-like structures consisting of short, highly venomous anterior
appendages.
Portuguese Man of the Sea jellyfish:
Its structure resembles a floating bag filled with purple gas, and has long
red, purple, or blue tentacles.
It is spread throughout the world, usually in tropical waters.
Floating bell lamp:
It is a lamp that takes the form of a
flat, colorless bell with white spots.
It has eight thick, transparent tentacles, from which hangs a longer structure that resembles a transparent stripe.
Marine nut jellyfish:
It is a non-venomous species.
Its
body resembles a comb in transparent rows.
It is found extensively in the summer in the Gulf of Mexico and the western Atlantic Ocean.
Blue button jellyfish:
This
species looks like buttons.
Its
color ranges from purple to blue.
Its
tentacles are not biteable, so it is non-toxic.
It is
found in the summer in the warm waters of the Atlantic Ocean.
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Jellyfish behavior:
There are many behaviors specific to jellyfish, the most important of which are the following:
The range of movement of the
jellyfish is limited, and it depends largely on water and wind currents to move
from one place to another.
Jellyfish live in the air and water
interface all year round.
Jellyfish spend their time searching
for food, finding a mate, or escaping predators.
Some species of jellyfish migrate
once or twice a day.
Jellyfish swim against the current in
remarkably shallow areas by contracting and then turning their bodies back.
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Jellyfish feed:
Jellyfish food
Most jellyfish feed on the following:
Fish.
Shrimp.
Crab.
Small plants.
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Predators:
There are many predators of jellyfish, the most important of which are:
Big fish.
Sea turtles.
Humans.
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Harmful effects and benefits of jellyfish sting on humans:
Below is a mention of the most
prominent information related to the harms and benefits of jellyfish sting:
One of the most common damages is a
jellyfish sting, which can be fatal if there is no immediate medical
intervention.
The rate of tolerance to infection
varies depending on the age of weight and health of the person, and according
to the area affected by the sting, whether the face or limbs.
Within minutes or hours, a sting
causes blisters, itching, and rashes.
It leads to severe pain for up to 10
days, with a change in skin color and mild roughness of the tissue for up to 8
months.
The
treatment is usually through local paint to relieve the pain.
Sea jellyfish poison resulting from
cnidarians is used in the manufacture of some chemical compounds to treat some
types of cancer, such as:
Liver cancer, by extracting the poison, drying
it, and then using it in laboratories.
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Other information about jellyfish:
Jellyfish reproduction:
There is a lot of information related to jellyfish reproduction,
the most important of which is the following:
Sea beavers reproduce through asexual
contact.
Males and females release eggs and
sperm into the water, where fertilization takes place until a larva forms.
The larvae settle on the sea floor,
growing alone until they become adult jellyfish after three months.
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Jellyfish sleep:
Beavers can also sleep like other
living organisms, as the study was conducted in laboratories on a type of
jellyfish that lives upside down, using its pulsating bell to help it move in
the water, However, the
movements of this pulsating bell decrease at night, and become less active for
a period ranging between 10-20 seconds at intervals of the night, and sometimes
the pulsating bell stops pulsing completely.
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Jellyfish adaptation methods:
Jellyfish adapt to their surrounding
environment in several ways and means, the most important of which are the
following:
A jellyfish bites its prey, then
pulls it out with its arms to put it in its mouth.
Sea jellyfish live in water rich in
nutrients and poor in oxygen.
Polyps
"pre-fertilization jellyfish" may benefit from salt water to grow، Sea lamps can detect water currents,
as they are their means of transportation, as they usually swim against the
current.
Jellyfish have hair called trigger
hair, which helps them detect prey.
It has long, thin tentacles that hang from the bell and are covered with stinging cells that help it defend itself and pounce on its prey.
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Amazing facts about jellyfish:
There are many amazing,
never-before-mentioned facts about jellyfish, the most important of which are
the following:
Asians
use jellyfish for their food, as they have become the main ingredient in
preparing noodles, sushi, and salads.Pickled and dried jellyfish are also
considered a delicacy in some countries.
Sea beavers are classified as marine
gelatinous plankton, not fish.
The jellyfish has a high nutritional
value, which helps raise the level of collagen in the body.
Jellyfish contribute to enhancing
memory and help maintain weight loss when added to the diet.
When taken, jellyfish lower high
blood pressure and maintain their levels.
Sea jellyfish are beneficial for heart patients; It is low in calories and carbohydrates, and contains amino acids and proteins.
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With my best wishes
