In General, large catfish and Remora are most inclined to free life, often travel without assistance. Many small catfish live almost hopeless Remora, sucker, mouth in whales, sharks, manta rays, and again between the gills of sharks Macedonia and other large fish.
Columbus in 1494 and set anchor off the coast of Cuba, seen catfish hunt with the hangers on the turtles. In our days this hunt with “hunting fish” described by many researchers. Catfish adhesion to the custom of the fishermen of Torre owl Strait, South China, Venezuela, Cuba, Mozambique and Zanzibar. Catch any fish, even sharks, but mainly sea turtles. And the aborigines of Australia hunted with clingy catfish and dugongs.
Start with the fact that they catch in the sea catfish Remora. Then he pierce a hole in the tail, pass through a long thin rope and tightly tie it around the tail. The second, shorter, the twine is passed through the mouth and gills of catfish Remora. So two “moorings” and towed catfish Remora at the side of the Shuttle. Continue reading
The structure of the pharynx is also closely linked to feeding habits of fish. As indicated, the number and structure of Gill rakers may be very different — from a few small hard bumps predatory fish to a complex network of frequent rakers in silver carp — Hypophthalmichthys molitrix (Val.), litumelo planktonic algae. The mullets — Mugili – dae — muscular throat adapted for crushing lisovogo clump, consisting of detritus and vegetation. Some fish developed teeth on the pharyngeal bones. Some they are on top – and ninepatch bones, as, for example, wrasses — Labridae, or only ninepatch, as, for example, cyprinids — Cyprinidae.
Haeckel (1843) divides nizhnelomovskie teeth of cyprinid by the nature of the structure related to their function into four types:
1) hollowed — excavati, a type of Longhorn beetle,
2) chewing — mastic torii, a type of carp, Continue reading
Clean water is essential for the biological balance in the garden pond. Water quality has a direct impact on the growth and reproduction of plants, the growth of microorganisms and fish health. The water should contain all the necessary elements that are important for the proper flow of biological and chemical processes. If all the indicators are normal, and livelihoods at the micro-level optimal, then Your garden pond is established biological balance. For many, garden ponds, where, as a rule, the ratio of fish to water volume is very large, beautiful and successful solution is to install the filter. In the garden pond is one fish about four times less water compared to the reservoir in wildlife. The natural balance is disturbed quickly also because of the waste products of the inhabitants of the lake. This is especially true for koi. On the one hand, the water in the pond through the filter is maintained in a clean condition, and, on the other hand, the filter will take care of proper water circulation, which in turn will provide additional supply of the required amount of oxygen. Pressure filter provides both mechanical and biological treatment. Continue reading