Have you ever wondered how old the fish live? Based on the fact that most of them have to live near dangerous predators in very unpleasant conditions, it was possible to think that they do not live more than two or three years. However, it is not so — recently in the waters of the U.S. state South Dakota was found by the 112-year-old fish. According to scientists, she was born in 1907, when the steamship “Titanic” has not yet embarked on their tragic voyage, and about the imminent beginning of the First world war nobody even knew existed.
Found the fish belongs to the species Bigmouth Buffalo (Ictiobus cyprinellus). The average duration of life of this species is around 26 years. Found same individual lived four times longer than most of their relatives, and for all his long life, gained 22 pounds of weight, which is very impressive for a fish of this species. However, this is not the highest weight in history there have been case where people were caught and 30-pound individual.
How much is the fish live?
The lifespan of a fish depends on their species and their habitat. It is logical that a tiny aquarium fish can reside fairly a long time thanks to the secure environment — most importantly, the owners have just cleared the water and did not forget to feed them. Fish living in the wild, constantly risking their lives, because you can become prey to predators and fishermen.
Life expectancy of fish:
- Pike — 7 years;
- Salmon — 15 years;
- Mackerel — 20 years;
- Carp — 20 years;
- Bass — 23 years;
- Sturgeon 100 years.
For a long time it was believed that the most long-lived fish are pike. In particular, the authors of some books claimed that in 1794, under the Moscow fishermen caught a pike, to the gills where you stuck a ring with the inscription “Put Tsar Boris Fedorovich”. It is known that Boris Godunov rules between 1598 and 1605 the pike was about 200 years old. Of course, due to the lack of any evidence, this story is only a legend.
That Bigmouth Buffalo can live for over 100 years, biologists have suspected for a long time. To verify this, from 2011 to 2018, they occasionally caught these fish and identified their date of birth. Age was determined by the so-called otoliths — stone formations in the bodies of fish, which are in equal intervals of time acquire new layers. Considering their number, it is possible to determine the age of many fish and crustacean creatures.
This 112-year-old fish survived two wars
All scientists have captured and studied about 386 fish. They were surprised because most of the largemouth Buffalo were older than 80 years, and among them were very few young individuals. The researchers quickly found the reason for the small number of young fish, having studied the history of the city of Pelican rapids, Minnesota, the waters of which were caught fish.
Why don’t fish reproduce?
It turned out that at the end of 1930-ies in the city was built a dam that blocked fish the way to their breeding grounds. In the end, it turned out that in the vicinity of the city has not the new born fish in the water is almost always inhabited by individuals born in times of war. They were able to survive, because almost not eaten and can otlavlivatsya for sport only. Apparently, in Minnesota sport fishing is not very developed.
And you know the illness helps fish diet?
Carp fishing in the US — why they do not like?
With all this, Bigmouth Buffalo are a huge benefit to the local rivers. The fact that they actively destroy the carp, which was introduced into the USA in the 1970s, the years of Kazakhstan’s lake Balkhash. Strangers to American waters fish multiplied and began to eat local fish — some species are already on the verge of extinction. And the carp for Americans is not interesting — if in Russia they are happy to catch and eat, in the US do not like them because of the abundance of bones.
The skeleton of a carp
As you can see, even such inconspicuous creatures like fish, still able to surprise us. Another amazing fish are a blue-crested talisay, the females of which in a very short time can turn into males. For a complete change of appearance and nature, they take about 10 days. But the interesting thing is that they change gender for a reason — it is a very good reason.