To the genus Scyliorhinus is part of 13 species, including small and large cat shark and shark-cat. In General to the family Scyliorhinidae is part of 15 genera, including 89 species of sharks, also known as a dog sharks. Another family belonging to the order Scyliorhiniformes, Pseudotriakidae is with one, single, tiny-teethed shark (Pseudotriakis microdon). All in all the world there are 12 groups of sharks.
COMPARISON WITH OTHER SPECIES
Sharing most of its habitat with a cat shark, star Cunha shark (Mustelus asterias) is a benthic predator. Combing through flocks millionie zone at a depth of 100 m, mustelids sharks prey on crustaceans, such as crabs and lobsters, and fish. In their diet can also include leopard sharks, as in length, they barely reach half the length of Kunia sharks. The star Continue reading
Description and sizes. Goldfish came to light thanks to the work of plant breeders. The ancestor of the fish – pond carp. This species is distinguished by simplicity, high decorative features. The fish can be kept in spacious aquariums or small ponds. Individuals can have different color fins and body. Pond goldfish reaches 30 cm, when the content in the aquarium – about 15 cm
Distribution. In the natural environment not inhabited, because it is the breeding form. To breed fish are able already in the second year of life, but for the purpose of obtaining good offspring is better to wait until the Pets reach the age of 2-4 years. The most favourable period for spawning is April – may, although goldfish can breed several times a year.
The content in the aquarium. Goldfish like company of their own kind, but it needs enough space for swimming (minimum aquarium – 100 liters 1 pair of fish). It is desirable to set the aquarium near a bright light source. Decorate an artificial pond with the help of stones, driftwood, on the bottom is filled with fine soil, possibly the use of plants (plastic and live), Continue reading