The most decorative are considered shubunkin – gold fish with blue, red, purple, black.
Shubunkin and goldfish
In Europe fish is relatively recent, although in China, was bred for thousands of years. There are many species of these fish, the most persistent of them can live under a layer of frozen water, if only “window”.
Ornamental fish (not edible) in the winter water can’t.
Ordinary goldfish are inexpensive, unpretentious. Scales with metallic sheen, shiny. Can live up to 20 years and grow to 40 cm Spawn from April to July.
The most decorative are considered shubunkin – gold fish with blue, red, purple, black. Continue reading
In the course of evolution, fish have mastered many unusual ways to navigate and find food under water. Their senses are often very different from the inhabitants of the land. For example, using the sideline they feel the vibrations of the water, and their nostrils are, as a hydrochemical laboratory, determining the content of dissolved substances. American scientists have discovered in a small catfish inhabiting the coasts of Japan, another unusual mechanism. These fish are looking for the burrows of marine worms to change the acidity of the water.
Kind prihvataju striped catfish Plotosus japonicas was opened in the southern part of the sea of Japan only in 2008. John Caprio (Caprio John ) and his colleagues from the University of Louisiana several years studying these fish in a specially-equipped aquariums. Continue reading