Arabian sea is located between the u-owami the Arabian and the Indian subcontinent. His area of 3683 km2 and a large part of the sea constitutes one of the ocean basins of the Indian ocean. So the Arabian sea is very deep, its average depth is 2734 m and the maximum – 5203 m In the Arabian sea there is a large Gulf of Aden, through the Strait which connects the Arabian and Red seas, and Gulf of Oman, to which it is connected by the Hormuz Strait, Persian Gulf. In the Arabian sea developed fishery – there are more than 100 species of commercial fish, including sardines, tuna, Marlin, sailfish, mackerel.
Important fisheries for shrimp, crabs and lobster. The local waters are filled with several species of sharks, including Mako, black tip reef shark, tiger, blue and bull sharks. Even swim in shallow water, these sharks generally do not attack people, on the contrary, when meeting with the person trying to quickly retreat. The people here are much more dangerous to the sharks, because for the edible fins, which are exported, sharks in the Arabian sea foraged in large quantities. Continue reading
I wish to breed aquarium fish? Commendable, this is a very interesting exercise. Want to have a house large panoramic aquarium, and swam in it a variety of beautiful miniature fish. This requires to know the fish species, basic fishkeeping and how to determine the aquarium fish compatibility with each other.
Compatible aquarium fish
Setting in the home aquarium, answer the question, what is it for you? For rest and relaxation that you get, watching the peaceful coexistence of the aquarium family. Or you like rushing attacking predators. Should we stop any one, original fish and engage in their cultivation.
If you are interested in the first option, install in-house so-called common aquarium. In such a tank can contain a variety of peaceful fish. It will be able to coexist peacefully:
the Rasbora and tetras hiding;
neon / cardinal tetras and a plecostomus;
swordtails and cardinals;
carnegiella, ruby tetras and barbs of fire.
The compatibility of all these fish aquarium is ideal. Continue reading
Among infectious diseases most common diseases of bacterial origin: aeromonosis and Pseudomonas.
Aeromonosis.The causative agent is aeromonad – motile gram-negative bacteria p. Aeromonas (A. hydrophila, A. sobria) related to SEM. Vibrionaceae. Hits all the main types of pond fish (carp, white Amur, carp, crucian carp). The factors contributing to the development of fish are the sharp increase in water temperature, low fatness of the fish, dense planting, poor feeding, high content of organic matter, the trauma to the fish.
Aeromonosis is acute, subacute and chronic. The acute form is observed in the spring and summer and can be accompanied by mass death of fish (70%). The disease manifests itself in the form of serous-hemorrhagic inflammation of the skin and is characterized by edema, ekzoftalm, enlarged abdomen, aresenium scales. At autopsy in the abdominal cavity detect the exudates (clear, yellowish or bloody fluid), peritonitis, hemorrhagic inflammation of the intestines, degeneration of the internal organs (increase, discoloration, foci of necrosis). Continue reading