Crocodile Icefish Facts - proper way of hand wash dishes in a restaurant
by:Two Eight
2019-09-01
Although it seems unlikely to survive at cold temperatures in the South Pole, there are a number of chiropractic animals that have been living there for quite some time.
Ice fish is called one of the most extraordinary creatures on our planet, and this article lists the fact that one of the most popular members of this species --
Crocodile ice fish.
"Evolution is a fire ".
Although this sentence was originally quoted by Francois Jacob, H.
William picch III, lead researcher at the American Antarctic project, after he discovered the surprising survival mechanism of the crocodile icefish.
Before we discuss the facts related to crocodile ice fish, let's first understand what ice fish is.
Ice fish are endemic to the cold waters of Antarctica and South America.
It belongs to the perciform family, a family of chiropractic animals, which accounts for 40% of all fish in the world and belongs to the larger Notothenioidei suborder.
So far, there are known to be more than 132 species of ice fish, and the possibility of new ice fish being discovered is high.
The ice fish was first discovered in 1927.
Zoologist dillov rostade, the first to notice these strange fish, is studying the possibility of turning Antarctica into a whaling outpost.
Around the coast of Antarctica, he found a fish with no scales, pale colors, and crocodiles --
Like the chin and translucent parts of the body.
What's even more strange is that when you cut it, the fish flows colorless blood.
Because of its crocodile
Like the chin and colorless blood, Rustad calls it "white"
On his notebook, the colorless fish in the blood expands the entrance, which means colorless blood.
In 1954, after years of research, biochemist John Rudd published a paper confirming that there were no red blood cells and hemoglobin in the icefish.
Of all known spinal animals, only these fish lack hemoglobin and red blood cells.
Many biologists believe that the lack of red blood cells is a reaction to the cold temperature of the environment in which they live.
Like many of its family members, crocodile ice fish, also known as Whitefish
In the cold waters of Antarctica and South America, blood fish can be found in many areas.
At present, there are about 25 accepted crocodile ice fish.
Crocodile ice fish is mainly in Antarctic waters, where the temperature is lower-2 to -4°C.
Their food includes shrimp, porpoise and other fish.
The length of the crocodile ice fish can reach 30 to 70 cm.
Crocodile ice fish reaches sexual maturity between 5 and 8 years, and the mating season begins in autumn and winter.
Females were able to spawn nearly 10,000 to 20,000, and the incubation period was from 2 to 6 months depending on the geographical location.
Because the blood of the crocodile ice fish does not contain hemoglobin (oxygen-
Give the red binding protein to the blood), transparent and colorless.
Red blood cells are rarely found, and if present, the red blood cells disappear.
The low metabolic rate of the body, as well as the high solubility of oxygen in cold Antarctic waters, helps fish to survive without hemoglobin.
However, oxygen
Their blood carrying capacity is 10% lower than their distant relatives with hemoglobin.
Crocodile Icefish contains larger blood vessels and capillaries, larger hearts and greater blood volume, rather than hemoglobin, compared to other fish.
The coronary artery is missing and the heart chamber is very crowded, which helps them absorb oxygen directly from the blood pumped out.
The blood of the crocodile icefish, though in such cold waters, never freezes because its body produces its own antifreeze.
A pancreatic digestive enzyme that breaks down proteins in food found in other mammals has been transformed into a distribution throughout the body to prevent blood freezing.
Even though the icefish survived the difficult stages of evolution, it now faces a threat that has the power to make it extinct --man-
Climate change.
Due to the rising levels of over-use fossil fuels and pollution, the Southern Ocean is getting warmer, more acidic and less nutritious.
Ice fish are very sensitive to high temperatures, and future generations may not see this amazing marine species if the ocean temperature continues to rise.
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