Gurnard
The area. Gurnard, Trigla (Trigla) is a demersal species . inhabiting the seas of temperate and tropical zones of the World ocean. In the Black and Azov seas there are…

Continue reading →

Types of aquarium fish
In aquariums you can keep any fish. You can catch in the river or in the sea live, intact fish, a carp or a shark, and place it in a…

Continue reading →

Most dangerous animals in the world
Sea wasp Jellyfish, sea anemones, coral polyps, annelid worms, sea cucumbers, sea urchins, starfish, sponges can "burn" or stabbing of a person in contact with them. The range of consequences…

Continue reading →

Goldfish

(Carassius s. Cyprinus auratas) – belongs to the carp family (Cyprinidae) and is considered by some researchers a variation of crucian carp (Sagai vulgaris s. carassius). Since ancient times cultivated in China and Japan in many (about 100) of varieties. The color is commonly reddish, Golden where Golden fish and the fish got the name, but in addition there are breeds of pure silver, various shades of red, blue, brown, spotted, the picture is extremely varied. Well as a variety of body shape, size and structure of the scales, head shape, eye development, and especially fins, some fins can nedorazvitie or, conversely, to achieve a huge development, several varieties of double tails (right and left half have the ordinary structure of a fish tail). One of the strangest varieties, so called. telescopes with a very bloated body, huge eyes and a huge double tail. The size of goldfish fish is about 25 – 30, even 40 we see less commonly. In China and Japan breeding goldfish fish are doing great love, keep them and the rich and the poor.

In Europe, the Golden fish, the fish were brought to Portugal, according to some, in 1611, others in 1691 (point and 1728), then she was brought to England and France. Currently it is prevalent almost everywhere and is bred in ponds and aquaria. Imported by the French to St. Mauritius, she is wild and now inhabit all the ponds, rivers and lakes. The experiments of cultivation in Europe was a complete success and proved to be very beneficial. The first ponds for goldfish, the fish were arranged in France and then spread in other European countries (Germany, Austria, etc.). Each year is displayed and sold in Europe goldfish fish in the amount of 1000000 rubles. in addition, a significant number of ponds for goldfish fish exists in North America, where they sell for $ 300,000 per year.

It is known that goldfish goldfish can live 30 years – 35, according to the Chinese up to 100, spawns several (3 to 4) times a year, the number of eggs about 200. Young fish emerge from eggs in 2 to 6 days, and reach sexual maturity in 1 year. For breeding goldfish fish dig small ponds; food can serve as seaweed, bread, wafers, insects, and best of all the meat, insect larvae and crushed ant pupae. The main written about gold fish fish: De Sauvigny, “Histoire naturelle des Dorades de la Chine” (Par. 1870); H. Mulert, “The Goldfish and its culture”; Ch. Wagner, “Die Goldfischteiche”. In Russian N. F. Zolotnitsky, “Z. fish and its variation”

Predatory fish protects the fish from a mass death
In Lithuanian lakes and rivers in recent times massively dying fish, so look for an answer to the question, what is the reason? Panevezys environmentalists still waiting for the results…

...

Aquarium catfish Ancistrus
Homeland ancistrus — mountain rivers of South America. This is a small, length to 10 cm fish, unpretentious and practically omnivorous. Aquarists love them for their helpful ability to clean…

...