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Aquarium fishes – a complete encyclopedia beginner aquarist

Encyclopedia aquarist: My Pets – aquarium fishes- the Russian version is very easy to use, detailed and informative guide to the content of aquarium

Amazing electronic encyclopedia containing detailed information on nutrition and care of aquarium fish, with descriptions of fishes, with advice on maintaining the health of plants and fish, recommended requirements and conditions necessary for cultivation in house conditions even the most delicate and demanding species in your aquarium.

Aquarium fish – download encyclopedia of aquarium maintenance, feeding, care, health, breeding.

Electronic encyclopedia aquarist, which can be downloaded by the links below can be a great Advisor and teacher not only for aspiring owners of fish tanks, plants, shells, etc. and for experienced aquarists who already have their own experience in the aquarium maintenance and breeding of aquarium fish. Continue reading

The structure of the pharynx, the feeding of fish.

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

Black sea (Pont Evxs)

The greatest length of the Black sea from North to South — 580 km and a maximum depth of 2210 m, the average — 1240 m. the salinity of the water is approximately 18 ppm. The depth increases pretty quickly. Over a sloping beach near Evpatoria, Feodosia. On the South coast, in mountain areas, the depth increases more rapidly: a few meters from the shore you have to swim (or, in the alternative, to swim along the shore). Be careful, even at a short distance from the shore can be strong currents to deal with which is not prepared person is quite difficult. But mostly this does not apply to places of mass bathing (if not to swim too far). Waters of the Black sea, as a rule, not susceptible to freezing. The average sea temperature in winter ranges from +6 to +8 degrees, in summer — from +22 to +24 degrees (can warm up to 26 degrees in a particularly hot summer). However, it is worth noting that the Black sea could throw a “surprise”: one day deep cold currents cool the coastal waters up to 12 degrees, even Continue reading

The most dangerous and poisonous animals of Russia
The most dangerous and poisonous animals of Russia live near the person. More than half the population of the Russian Federation living on the territory, inhabited by various the most…

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The inhabitants of the Mediterranean sea
Croatia is a beautiful country. Besides, today it is considered one of the safest countries in Europe. Both flora, fauna, climate, and population, are unlikely to cause trouble for the…

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