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| classification | Carp order Cyprinidae Carp genus |
|---|---|
| Japanese name | Gimbuna |
| scientific name | Carassius auratus langsdorfi |
| distribution | Widely distributed in rivers and lakes throughout Japan. In addition to Japan, it is distributed in China and the Korean Peninsula. |
| feature | The base of the caudal fin is thick and has no mustache. The dorsal fin has more than 15 branches. |
Ecology of Gimbuna
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Ginbuna is omnivorous and preys on zooplankton and benthic animals. It grows up to about 40 cm and spawns in spring. Spawning is done in shallow water, and sticky eggs are laid on aquatic plants.
They are said to have a long lifespan, with many living for more than 10 years. Generally, what is called Mabuna is a general term that includes multiple species such as Gimbuna, Kinbuna, and Okinbuna, but there is no species called Mabuna.
Gimbuna grows with clones! ?
Gimbuna are known for their very interesting breeding methods. Let's take a look at the breeding of Gimbuna.
Gimbuna males are very rare
Gimbuna has very few male individuals, and most are considered to be female individuals. The ratio varies depending on the region, but it is extremely low at 1% of the female 99% and males, and there are even areas where males do not inhabit. So why is it possible for gimbuna to reproduce?
Gimbuna leaves offspring by parthenogenesis
Ginbuna can adopt a breeding method called parthenogenesis. Parthenogenesis is like cloning, and it is an interesting breeding method that can leave offspring if there is sperm from a female ginbuna and a male fish other than ginbuna, such as a loach.
Ginbuna has many individuals called triploids, and if there is a stimulus for fertilization, You can have children with just your own DNA.
No hybrids with other fish
When you hear that the sperm of other fish such as loach is used, some people may think that the fish will be born like a squishy ginbuna and a loach, but that is not the case.
Basically, the fertilization in this case is pseudo-fertilization, and the sperm and egg are not mixed, so a child is born that inherits the DNA of 100% Gimbuna. You can say that you are just cloning.
Gimbuna fishing method
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In gimbuna fishing, it is common to use earthworms, red beetles, and bait. Ginbuna moves in groups, so if you can successfully gather a group, you can enjoy fishing for a few.
especially Spring boarding season and autumn eating seasonis the time to enjoy both size and number. Inexpensive set rods and gimmicks for crucian carp are sold, so beginners should buy them.
Breeding Gimbuna
Ginbuna grows surprisingly large, so it is preferable to keep it in an aquarium of 60 cm or more. However, breeding is very easy, and it is possible to breed with simple equipment such as laying Oiso sand on the substrate and attaching a filter.
They are big eaters and easily pollute the water, so be careful to use a filter with a large filtration capacity and clean it frequently.
Gimbuna is easy to catch and buy!
It is said that fishing starts with crucian carp and ends with crucian carp. Gimbuna is a familiar fish, but it is an interesting fish because it has a very characteristic breeding method.
It is easy to catch and raise, so if you are new to fishing or like Japanese freshwater fish, why not take this opportunity to pay attention to ginbuna?
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